Ghid de utilizare - Controale pentru incalzirea in pardoseala DANFOSS
Limba: Engleza
Produse încluse în această documentație: Icon² - Basic, Icon2, Senzor, Icon² RT, Icon² Featured RT, Icon² 24V RT, Icon² 24V RT, On-wall, Icon² 24V TWA, Icon² External Antenna
Tip documentatie: Instructiuni montaj, utilizare
Salvează pdf
Full screen
Application guide
Danfoss Icon2™
Room control for hydronic floor heating
icon.danfoss.com
Application guide Danfoss Icon2™
Contents
Select your Icon2™ solution. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Connect up to four Advanced Main Controllers wirelessly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Wireless thermostats. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2-wire 24V thermostats. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
4
4
4
Thermal actuators. . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
New installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Replacing an existing installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Optional Smart Home control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Danfoss Ally™. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . 5
Fast commissioning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Danfoss Icon2™ Room Thermostat installer settings menu. . . . . . . . . . . . . . . . . . . . . . . . . 7
How to access the installer menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Explanation of dual mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Danfoss Ally™. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . 8
Step 1-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
How to include Icon2 with other Zigbee-based smart home solutions . . . . . . . . . . . . . . . . . . . 8
Application 00 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Floor heating system
Application 01. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2-pipe heating system with fixed supply temperature control
Application 02. . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2-pipe heating system with demand-controlled supply temperature
AB432956914381en-010201
Application 03. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
2-pipe heating/cooling system, changeover to cooling based on supply temperature
Application 04. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
2-pipe heating/cooling system, changeover to cooling based on heat pump/external
potential-free NO contact
Application 05. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
2-pipe heating/cooling system with (hybrid) heat pump, changeover to cooling based on
reference thermostat
Application 06. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3-pipe heating/cooling system with 3-way motorized ball valve, changeover to cooling
based on reference thermostat
Application 07. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
3-pipe heating/cooling system with two 2-way control valves with thermal actuators,
changeover to cooling based on reference thermostat
Application 08. . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
3-pipe heating/cooling system with 2 ball valves with actuators, changeover to cooling
based on reference thermostat
Application 09. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
4-pipe heating/cooling system with 6-way motorized ball valve, changeover to cooling
based on reference thermostat
© Danfoss | HydronicS | Sub-systems | 2023.05 | 2
Application guide Danfoss Icon2™
Application 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
4-pipe heating/cooling system with four
2-way control valves with thermal actuators,
changeover to cooling based on reference thermostat
Application 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
3-pipe heating/cooling system with two 2-way control valves with thermal actuators,
changeover to cooling based on external potential-free NO contact
Application 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
4-pipe heating/cooling system with 6-way ball valve with fixed heating and cooling supply
temperature control, changeover to cooling based on reference thermostat
Application 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
3-pipe heating/cooling system with two ball valves with actuators, changeover to cooling
based on external potential-free NO contact
Application 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
4-pipe heating/cooling system with 6-way ball valve with demand-controlled heating
supply temperature and fixed cooling supply temperature, changeover to cooling based
on reference thermostat
Application 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
4-pipe heating/cooling system with 6-way motorized ball valve, changeover to cooling
based on extern
al potential-free NO contact
Application 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
4-pipe heating/cooling system with 6-way ball valve with fixed heating and cooling supply
temperature control, changeover to cooling based on reference thermostat
Application 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55
4-pipe heating/cooling system with 6-way ball valve with demand-controlled heating
supply temperature and fixed cooling supply temperature, changeover to cooling based
on external (manual) potential-free NO contact
Application 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
2-pipe heating/cooling system with (hybrid) heat pump, changeover to cooling based on
external potential-free NO contact
Application 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
3-pipe heating/cooling system with 3-way motorized ball valve, changeover to cooling
based on external potential-free NO contact
AB432956914381en-010201
Application 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
4-pipe heating/cooling system with four 2-way control valves with thermal actuators,
changeover to cooling based on external potential-free NO contact ‘
T
roubleshooting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 82
Re-pairing or replacing a device . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
When to reset the Main Controller. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
When to reset a thermostat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
What to do if the thermostat cannot be reset. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
82
82
82
82
UI Blinking pattern for Icon2™ Main Controller . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Extending the wireless range. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84
Guideline for wireless products. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
When to consider using a repeater?. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
© Danfoss | HydronicS | Sub-systems | 2023.05 | 3
Application guide Danfoss Icon2™
Select your Icon2™ solution
Please note that
Basic only support
application 0 + 4
Connect up to four Advanced Main
Controllers wirelessly
Description:
Part number:
Specifications:
Icon2™ Advanced Main Controller
088U2110
Number of actuator outputs:
Actuator supply voltage:
Suitable for floor cooling:
Flow temperature control:
Smartphone control by end user:
Connection to thermostats:
15 channels
230V thermal actuators (convertible to 24V control)
Yes, advanced applications for 2, 3 and 4-pipe systems
Yes, depending on selected application
Yes, with addition of optional Ally™ Gateway
Both wired and wireless; wireless communication included as standard
Wireless thermostats
Description:
Icon2™ RT
Display thermostat
Part number:
088U2121
AB432956914381en-010201
Description:
Icon2™ Featured RT
Display thermostat with
infrared floor sensor
Part number:
088U2122
2-wire 24V thermostats
Description:
Icon2™ Sensor
No settings or display
Part number:
088U2120
Description:
Icon2™ On-wall thermostat
Description:
Icon2™ In-wall thermostat
Description:
Optional floor sensor
Part number
:
088U2128
Part number:
088U2125
Part number:
088U1110
© Danfoss | HydronicS | Sub-systems | 2023.05 | 4
Application guide Danfoss Icon2™
Thermal actuators
Optional Smart Home control
New installation
Danfoss Ally™
The Icon2™ Main Controller actuator outputs use 230V
If the Icon2™ Main Controller is wirelessly connected to the Ally™
Gateway, the system can be controlled from inside or outside the
home using an App.
Description:
Danfoss Ally™ Zigbee Gateway
Part number:
014G2400
Description:
TWA-A 230V NC thermal actuator
with connection for Danfoss
valves/floor heating manifolds
Description:
TWA-K 230V NC thermal actuator
with M30 connection for valves and floor
heating manifolds with M30
Part number:
088H3112
Part number:
088H3142
Grid power supply
using supplied USB
cable and adapter
Wired internet router connection
using supplied RJ45 cable
Replacing an existing installation
Do you need to replace existing controls that already use 24V actuators for eac
h
floor heating circuit? This optional TWA conversion module allows you to convert
the 230V actuator outputs on the Icon2™ Main Controller to 24V outputs.
Description:
Icon2 TWA conversion module
converts the 230V actuator outputs
to 24V outputs
Part number:
088U2140
AB432956914381en-010201
© Danfoss | HydronicS | Sub-systems | 2023.05 | 5
Application guide Danfoss Icon2™
Fast commissioning
Step 1:
Always be sure to connect actuators,
thermostats and any accessories first
Inputs and outputs on the connected devices
will instantly be detected when you insert the
plug into an electrical outlet. Never connect
devices with the plug already in an outlet.
Step 2:
Download the Icon2™
commissioning App and turn on
Bluetooth on your smartphone
Optional:
Linking of thermostats to actuator
outputs without the Icon2
commissing App
To set up the Icon2™ Main Controller, you will need
to use the App on your smartphone or tablet. It
will connect to the Icon2™ Main Controller using
B
luetooth.
1
• Install the App on your
smartphone or tablet.
230V thermal actuators
for floor heating.
One actuator max. per
output.
2-wire 24V thermostats. You
can connect several thermostats to one bus
24V actuator and sensor for
application with specific
flow temperature control
Remove the red pins
from the actuators
Verwijder deAB432956914381en-010201
rode lipjes van de motoren (alleen voor NC-typen).
3 sec.
2
• G
ive the Danfoss App
permission to access Bluetooth.
• Use > to select the actuator
output you want to pair with
the thermostat and confirm
with OK. The LED for the
selected output will light up
dimly.
Repeat steps 2 and 3 for
each thermostat
• M
ake sure Bluetooth is turned on
on your smartphone or tablet.
3
• Press > until the LED starts
flashing green. Every actuator
output connected to an actuator will light up.
Repeat for each actuator output
you want to pair with the
thermostat.
• Once you have selected all the
actuator outputs, activ
ate the
thermostat by pressing the
on the thermostat. When the
lights up, this means the thermostat is now linked to the selected
actuator outputs.
Once each actuator output has been assigned
to a thermostat, you will exit installer mode
automatically
3. Sluit de kabels vanaf de motoren aan op de
CF-MC-hoofdregelaar.
© Danfoss | HydronicS | Sub-systems | 2023.05 | 6
Application guide Danfoss Icon2™
Danfoss Icon2™ Room Thermostat installer settings menu
Access the user and installer menu
Explanation of dual mode
Activate the thermostat. Press and hold to open the basic menu (ME. 1 to 3).
Then press and hold again to access the installer menu ME. 4 to 7.
Use
or
to change menus and
to confirm. Press
to go back one step in the menu.
The ME.4 and ME.5 menu settings will only be available if the thermostat has
a floor sensor. Menu settings ME.6 and ME.7 will only be available if a cooling
application was selected.
In rooms with a combination of floor heating and radiators o
r convectors, one
thermostat can be used to control both individually.
For this to be possible, the wireless or wired thermostat must have a floor sensor.
On the Main Controller, the actuator outputs for the floor heating must be configured
to SLOW and those for the convectors to FAST. Floor heating circuits will maintain
a comfortable surface temperature based on the min. floor temp. setting (ME. 5) and
the radiator(s) maintain requested room temperature.
ME. 1 : Set limits for room temperature setpoint adjustments
ME. 2 : Information/version number used to identify the product
ME. 3 : Perform a link test to test the connection with the Main Controller.
Test results are 0–100%, with 30% or higher indicating a strong signal strength.
ME. 4 : Floor sensor mode:
CO = Comfort mode. Uses both air and floor sensors.
FL = Floor sensor mode, only floor sensor will be used to measure the temperature.
DU = D
ual mode. Thermostat controls one or more radiators and one or more floor
heatin
g circuits.
Note: Minimum 2 outputs have to be assigned to the thermostat in order for
Dual mode to be available.
ME. 5 : Minimum and maximum floor temperatures for use with CO and DU modes.
ME. 6 : Reference room. Set to ON to use this room’s thermostat as the reference for the
changeover between cooling and heating modes.
ME. 7 : Cooling ON/OFF. This setting is used to disable cooling, for example in a bathroom.
Additional cooling options is available in the Icon2 App.
AB432956914381en-010201
© Danfoss | HydronicS | Sub-systems | 2023.05 | 7
Application guide Danfoss Icon2™
Danfoss Ally setup
Step 1:
Step 3:
Download the Danfoss Ally™
App and create your account
1. Launch Danfoss Ally™ App
and add your Danfoss Ally™
Gateway.
2. Select Danfoss Ally™
Gateway and add subdevices
to your Danfoss Ally™ Smart
heating system.
Step 2:
Step 4:
Connect mains power and
Ethernet cables to your
Danfoss Ally™ Gateway
and follow the installation
process in the App.
Make
sure your mobile
device is connected to Wi-Fi
from the same router as
the Gateway is connected to
with cable.
After installation process is
done, open the App and set
up your heating system with
schedule and temperature. For
the full information please visit
the web address
ally.danfoss.com
AB432956914381en-010201
How to include Icon2 with other
Zigbee-based smart home
solutions
Most users will prefer to have one App to control
their smart home.
By including the Icon2 in the system, the user will
be able to control the Icon2 system via the same
App that controls the rest of the house. Icon2 is
connected to Zigbee-based smart home solutions
by opening up the App of the Zigbee smart home
solution of your choice and adding the Icon2 system
as a new device. Depending on the smart home
solution, this can either be done by simply pressing
the OK button once or, in the case of a Zigbee 3.0
solution, first scanning the QR code in the lower left
corner on the MC front and then clicking the
OK
button to finalize the inclusion process.
Note: Not all Icon2 features will be available
as standard in all smart home solutions.
© Danfoss | HydronicS | Sub-systems | 2023.05 | 8
Application guide Danfoss Icon2™
Application 00
Floor heating system
Installer App settings
Function
Factory setting
Off
Application description
This basic Icon2™ application controls thermal actuators by group based on heating
demand for the linked room thermostats.
The pump and heat demand signal will activate whenever there is a heating demand
for at least one circuit. Both the pump (PWR1) and the heat demand signal (RELAY) are
set to have a switch-on delay of 3 minutes by default.
In PWM+ mode, the Danfoss Icon2™ makes use of automatic balancing. During periods
with a greater need for heat, this decreases the time spent ‘on’ for shorter pipes in small
rooms and prioritizes longer pipes in large rooms within the system. The process is
automatic and continuous. It ensures more efficient
energy consumption and greater
comfort.
●
PWR1 switch-on delay of 3 minutes
●
RELAY switch-on delay of 3 minutes
●
●
IN2 input for changeover to cooling*
* If you enable IN2, the system will function according to Application 04
Required accessories
Stainless steel floor heating manifold SSM-F, 2–12 groups
088U0752 to
088U0762
Set of 2 mounting brackets
088U0585
Set of 2 ball valves 1"
088U0822
2
Thermal actuator TWA-A 230V NC suitable for SSM-F manifold
088H3112
3
Dew point sensor CF-DS
088U0251
4
External NO contact for changeover to cooling mode
External
1
AB432956914381en-010201
●
PWM+ proportional control of actuator outputs
Heat pump optimizer – maintenance of minimum flow
On
© Danfoss | HydronicS | Sub-systems | 2023.05 | 9
Application guide Danfoss Icon2™
App
App21
0
3
1
1
1 set Danfoss Manifold
(types FHF or BasicPlus or SSM)
2
Thermal actuators, 230V / 24V* TWA-A
Mains
Power
PT1000
2
EXT Input 2
M
EXT Input 1
M
NO (RE
LAY)
NC (RELAY)
COM (RELAY)
M
L (PWR1)
N (PWR1)
(PWR1)
L (PWR2)
N (PWR2)
M
PWR3 24V DC
1
* Requires TWA conversion module
Dew Point Sensor CF-DS
4
External switch for manual changeover
between heating and cooling
NO
COM
NC
GND
V+
3
Dew Point Sensor
4
AB432956914381en-010201
© Danfoss | HydronicS | Sub-systems | 2023.05 | 10
Application guide Danfoss Icon2™
Application 01
2-pipe heating system with fixed
supply temperature control
Installer App settings
Function
Factory setting
Off
Application description
Floor heating system with electronically controlled supply temperature.
The supply temperature is set to a fixed value. The system uses a PT1000 sensor
to detect and control the supply temperature. This sensor also ensures that the
maximum allowable supply temperature is not exceeded.
The pump and heat demand signal will activate whenever there is a heating demand
for at least one circuit. Both the pump (PWR1) and the heat demand signal (RELAY) are
set to have a
switch-on delay of 3 minutes by default.
In PWM+ mode, the Danfoss Icon2™ makes use of automatic balancing. During periods
with a greater need for heat, this decreases the time spent ‘on’ for shorter pipes in small
rooms and prioritizes longer pipes in large rooms within the system. The process is
automatic and continuous. It ensures more efficient energy consumption and greater
comfort.
AB432956914381en-010201
On
●
PWM+ proportional control of actuator outputs
Heat pump optimizer – maintenance of minimum flow
●
PWR1 switch-on delay of 3 minutes
●
RELAY switch-on delay of 3 minutes
●
Safety temperature
50.0 °C
Desired supply temperature
40.0 °C
Required accessories
1
Mixing shunt FHM-C1 with circulation pump UPM3 15-70
088U0094
2
Stainless steel floor heating manifold SSM-F, 2–12 groups
088U0752 to
088U0762
Set of 2 mounting brackets
088U0585
Set of 2 ball valves 1"
088U0822
3
Thermal actuator TWA-A 230V NC suitable for SSM-F manifold
088H31
12
4
PT1000 temperature sensor ESM-11
087B1165
5
Thermal actuator TWA-A 24V NC suitable for mixing shunt
FHM-C1
088H3110
© Danfoss | HydronicS | Sub-systems | 2023.05 | 11
Application guide Danfoss Icon2™
App 1
4
2
1
Danfoss
PT1000
EXT Input 2
EXT Input 1
PWR3 24V DC
Mains
Power
24V RT
3
24V RT
M
24V RT
M
Shunt 24V DC
M
L (PWR1)
N (PWR1)
(PWR1)
L (PWR2)
N (PWR2)
M
NO (RELAY)
NC (RELAY)
COM (RELAY)
2
5
Circulation pump
1 set Danfoss Manifold
(types FHF or BasicPlus or SSM)
Thermal actuators, 230V / 24V* TWA-A
* Requires TWA conversion module
4
ESM-11 (PT-1000)
5
Thermal actuator 24V TWA-A
AB432956914381en-010201
5
4
ESM-11
(PT-1000)
© Danfoss | HydronicS | Sub-systems | 2023.05 | 12
Application guide Danfoss Icon2™
Application 02
2-pipe heating system with demand-controlled supply
temperature
Application description
Floor heating system with electronically controlled supply temperature. An optimum
supply temperature is determined based on
the rooms’ need for heat.
The system uses a PT1000 sensor to detect the supply temperature. This sensor also
ensures that the temperature does not exceed the maximum allowable temperature
set as the safety temperature. If this sensor is connected, the system will control the
circulation pump and heat demand signal for a boiler or heat pump, for example.
The pump and heat demand signal will activate whenever there is a heating demand
for at least one circuit. Both the pump (PWR1) and the heat demand signal (RELAY) are
set to have a switch-on delay of 3 minutes by default.
In this application, the Danfoss Icon2™ makes use of automatic balancing. During
periods with a greater need for heat, this decreases the time spent ‘on’ for shorter
pipes in small rooms and prioritizes longer pipes in large rooms within the system. The
process is automatic and continuous. It ensures more efficient energy consumption
and greater comfort.
AB432956914381en-010201
Installer App settings
Function
Factory setting
Off
On
●
PWM+ proportional control of actuator outputs*
Heat pump optimizer – maintenance of minimum flow
●
PWR1 switch-on delay of 3 minutes
●
RELAY switch-on delay of 3 minutes
●
Temperature range
25.0–40.0 °C
Safety temperature
50.0 °C
*Non-adjustable
Required accessories
1
Mixing shunt FHM-C1 with circulation pump UPM3 15-70
088U0094
2
Stainless steel floor heating manifold SSM-F, 2–12 groups
088U0752 to
088U0762
Set of 2 mounting brackets
088U0585
Set of 2 ball valves 1"
088U0822
3
Thermal actuator TWA-A 230V NC suitable for SSM-F manifold
088H3112
4
PT1000 temperature sensor ESM-11
087B1165
5
Thermal actuator TWA-A 24V NC suitable for mixing shunt
FHM-C1
088H3110
© Danfoss | HydronicS | Sub-systems | 2023.05 | 13
Application guide Danfoss Icon2™
App 2
4
2
1
Danfoss
PT1000
EXT Input 2
EXT Input 1
PWR3 24V DC
Mains
Power
24V RT
3
24V RT
M
24V RT
M
Shunt 24V DC
M
L (PWR1)
N (PWR1)
(PWR1)
L (PWR2)
N (PWR2)
M
NO (RELAY)
NC (RELAY)
COM (RELAY)
2
5
Circulation pump
1 set Danfoss Manifold
(types FHF or BasicPlus or SSM)
Thermal actuators, 230V / 24V* TWA-A
* Requires TWA conversion module
4
ESM-11 (PT-1000)
5
Thermal actuator 24V TWA-A
AB432956914381en-010201
5
4
ESM-11
(PT-1000)
© Danfoss | HydronicS | Sub-systems | 2023.05 | 14
Application guide Danfoss Icon2™
Application 03
2-pipe heating/cooling system, changeover
to cooling based on supply temperature
Installer App settings
Function
Factory setting
Off
Application description
Floor heating system with automatic changeover to cooling based on supply
temperature input. A PT1000 sensor is used to monitor the supply temperature.
The system will change over to heating or cooling based on this measurement. If the
sensor is connected, the system will control the circulation pump, activating it if there
is a need for heat or cooling in at least one room. The PT1000 sensor must be mounted
to a pipe where flow will
be assured at all times.
The heating signal for e.g. a boiler or heat pump will only be activated if the system is
in heating mode and there is a heating demand in at least
one room.
If it is not possible to prevent the supply temperature from dropping below the dew
point in cooling mode, it is strongly recommended that you add a dew point sensor.
Condensation can result in permanent damage to the floor’s construction and finish.
AB432956914381en-010201
On
●
PWM+ proportional control of actuator outputs
Heat pump optimizer – maintenance of minimum flow
●
PWR1 switch-on delay of 3 minutes
●
RELAY switch-on delay of 3 minutes
●
Change water temperature to heating
25.0 °C
Change water temperature to cooling
19.0 °C
Required accessories
1
Dew point sensor CF-DS
088U0251
2
Stainless steel floor heating manifold SSM-F, 2–12 groups
088U0752 to
088U0762
Set of 2 mounting brackets
088U0585
Set of 2 ball valves 1"
088U0822
3
Thermal actuator TWA-A 230V NC
suitable for SSM-F manifold
088H3112
4
PT1000 temperature sensor ESM-11
087B1165
© Danfoss | HydronicS | Sub-systems | 2023.05 | 15
Application guide Danfoss Icon2™
App 3
4
2
1
PT1000
Mains
Power
EXT Input 2
M
EXT Input 1
M
3
NO (RELAY)
NC (RELAY)
COM (RELAY)
M
L (PWR1)
N (PWR1)
(PWR1)
L (PWR2)
N (PWR2)
M
PWR3 24V DC
2
Dew Point Sensor CF-DS
1 set Danfoss Manifold
(types FHF or BasicPlus or SSM)
Thermal actuators, 230V / 24V* TWA-A
4
ESM-11 (PT-1000)
1
NO
COM
NC
GND
V+
* Requires TWA conversion module
Dew Point Sensor
AB432956914381en-010201
4
ESM-11
(PT-1000)
© Danfoss | HydronicS | Sub-systems | 2023.05 | 16
Application guide Danfoss Icon2™
Application 04
2-pipe heating/cooling system, changeover to cooling based on
heat pump/external potential-free NO contact
Installer App settings
Function
Factory setting
Off
Application description
Floor heating system with automatic changeover to cooling mode, controlled
by a heat pump or other heatin
g and cooling source. The heat pump signals
the Danfoss Icon™ Main Controller to start cooling using a potential-free NO contact
connected to IN2.
The PWR1 circulation pump will activate whenever there is at least one room with
a heating or cooling demand. The RELAY (heat source control) will activate whenever
there is at least one room with a heating demand.
If it is not possible to prevent the supply temperature from dropping below the dew
point in cooling mode, it is strongly recommended that you add a dew point sensor.
Condensation can result in permanent damage to the floor’s construction and finish.
If dew point monitoring is active, the pump and all actuator outputs will be inactive.
AB432956914381en-010201
●
PWM+ proportional control of actuator outputs
Heat pump optimizer – maintenance of minimum flow
On
●
PWR1 switch-on delay of 3 minutes
●
RELAY switch-on delay of 3 minutes
●
IN2 input for changeover to cooling
●
Required accessories
1
Heat pump
or hybrid system
External supplier
2
Stainless steel floor heating manifold SSM-F, 2–12 groups
088U0752 to
088U0762
Set of 2 mounting brackets
088U0585
Set of 2 ball valves 1"
088U0822
3
Thermal actuator TWA-A 230V NC suitable for SSM-F manifold
088H3112
4
Dew point sensor CF-DS
088U0251
5
External NO contact for changeover to cooling mode
External
© Danfoss | HydronicS | Sub-systems | 2023.05 | 17
Application guide Danfoss Icon2™
App 4
4
2
1
PT1000
Heat pump
Mains
Power
EXT Input 2
M
EXT Input 1
M
3
NO (RELAY)
NC (RELAY)
COM (RELAY)
M
L (PWR1)
N (PWR1)
(PWR1)
L (PWR2)
N (PWR2)
M
PWR3 24V DC
2
1 set Danfoss Manifold
(types FHF or BasicPlus or SSM)
Thermal actuators, 230V / 24V* TWA-A
4
Dew Point Sensor CF-DS
5
External voltage free contact from
heatpump for changeover between
heating and cooling
(Volt free)
Heat demand
signal
NO
COM
NC
GND
V+
* Requires TWA conversion module
Dew Point Sensor
4
AB432956914381en-010201
5
© Danfoss | H
ydronicS | Sub-systems | 2023.05 | 18
Application guide Danfoss Icon2™
Application 05
2-pipe heating/cooling system with (hybrid) heat pump,
changeover to cooling based on reference thermostat
Application description
This application makes it possible to send separate control signals for both heating and
cooling demands to a heat pump or hybrid system. The PWR1 (230V output) is active
when there is a heating demand and the RELAY (potential-free contact) is used for
cooling.
To enable the PWR1 230V output to control the heat pump based on heating demand,
the AMZ connection box converts the signal
to a potential-free NO contact.
If it is not possible to prevent the supply temperature from dropping below the dew
point in cooling mode, it is strongly recommended that you add a dew point sensor.
Condensation can result in permanent damage to the floor’s construction and finish.
The changeover between heating and cooling is controlled based on a reference
thermostat. In nearly all cas
es, the living room is used as the reference.
To prevent excessive switching between heating and cooling modes, the following
conditions must be met for the system to change over to cooling mode:
• The room temperature measured by the reference thermostat must exceed the set
room temperature + dead band (adjustable from 0–4K).
• The reference thermostat did not have a heating demand during the time delay
(adjustable from 0–24 hours).
• If present, dew point monitoring must be inactive
• The room thermostat must have cooling enabled (default = enabled).
AB432956914381en-010201
Setting one thermostat as the reference thermostat
In this application, one thermostat is set up as a reference thermostat. The temperature
in this room determines whether the system is in heating or cooling mode.
There are two ways to set up a reference thermostat:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.6 setting to O
N
Disabling cooling (Bathroom)
If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you
may want to disable cooling for this room. Cooling a bathroom will cause condensation
to form on the floor.
There are two ways to disable cooling mode for a room:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.7 setting to OFF
© Danfoss | HydronicS | Sub-systems | 2023.05 | 19
Application guide Danfoss Icon2™
App 5
4
2
1
2
Hybrid gas / Heat pump
Mains
Power
PT1000
Reference
Thermostat
L (PWR1)
N (PWR1)
(PWR1)
L (PWR2)
N (PWR2)
3
EXT Input 2
M
EXT Input 1
M
PWR3 24V DC
M
NO (RELAY)
NC (RELAY)
COM (RELAY)
M
1 set Danfoss Manifold
(types FHF or BasicPlus or SSM)
Thermal actuators, 230V / 24V* TWA-A
External relay
5
24V~
AMZ connection box
Bridge
AB432956914381en-010201
1
2
3
4
5
NO
COM
NC
GND
V+
5
NO
C
NC
L
N
C
NO
Dew Point Sensor CF-DS
N
4
L
* Requires TWA conversion m
odule
(Hybrid) heat pump
Dew Point Sensor
4
© Danfoss | HydronicS | Sub-systems | 2023.05 | 20
Application guide Danfoss Icon2™
Application 05
Continued
Explanation of heating and cooling for end user
No cooling will occur until the reference room temperature has exceeded
the set temperature + dead band for the set
time delay. For example, after the room’s temperature has been over 25 °C (21 °C + 4K)
for six hours.
A room will never be cooled further than
two degrees above the set temperature. If the temperature is set to 21 °C, for example,
the room will be cooled to 23 °C. Heating will activate as soon as the room
temperature drops below the set temperature.
Installer App settings
Function
Factory setting
Off
On
●
PWM+ proportional control of actuator outputs
Heat pump optimizer – maintenance of minimum flow
●
Dead band heating/cooling changeover
4K
Time delay for changeover to cooling mode
6h
Required accessories
AB432956914381en-010201
1
Heat pum
p or hybrid system
External supplier
2
Stainless steel floor heating manifold SSM-F, 2–12 groups
088U0752 to
088U0762
Set of 2 mounting brackets
088U0585
Set of 2 ball valves 1"
088U0822
3
Thermal actuator TWA-A 230V NC suitable for SSM-F manifold
088H3112
4
Dew point sensor CF-DS
088U0251
5
External relay - AMZ connection box
082G1636
© Danfoss | HydronicS | Sub-systems | 2023.05 | 21
Application guide Danfoss Icon2™
Notes
AB432956914381en-010201
Drawings
© Danfoss | HydronicS | Sub-systems | 2023.05 | 22
Application guide Danfoss Icon2™
Application 06
3-pipe heating/cooling system with
3-way motorized ball valve, changeover to cooling
based on reference thermostat
In this application, a 230V 3-way motorized ball valve is used to change over between
heating and cooling modes.
Setting one thermostat as the reference thermostat
In this application, one thermostat is set up as a reference thermostat.
The temperature in this room determines whether the
system is in heating or cooling
mode.
The PWR1 230V output activates when the system is in cooling mode.
If it is not possible to prevent the supply temperature from dropping below the dew
point in cooling mode, it is strongly recommended that you add a dew point sensor.
Condensation can result in permanent damage to the floor’s construction and finish.
There are two ways to set up a reference thermostat:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.6 setting to ON
The changeover between heating and cooling is controlled based on a reference
thermostat. In nearly all cases, the living room is used as the reference.
Disabling cooling (Bathroom)
If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you
may want to disable cooling for this room. Cooling a bathroom will cause condensation
to form on the floor.
Application description
To prevent excessive switching between heating an
d cooling modes, the following
conditions must be met for the system to change over to cooling mode:
• The room temperature measured by the reference thermostat must exceed the set
room temperature + dead band (adjustable from 0–4K).
• The reference thermostat did not have a heating demand during the time delay
(adjustable from 0–24 hours).
• If present, dew point monitoring must be inactive
• The room thermostat must have cooling enabled (default = enabled).
AB432956914381en-010201
There are two ways to disable cooling mode for a room:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.7 setting to OFF
© Danfoss | HydronicS | Sub-systems | 2023.05 | 23
Application guide Danfoss Icon2™
App 6
2
1
4
Mains
Power
PT1000
AMZ 113 230V
EXT Input 2
3
Reference
Thermostat
EXT Input 1
M
NO (RELAY)
NC (RELAY)
COM (RELAY)
M
L (PWR1)
N (PWR1)
(PWR1)
L (PWR2)
N (PWR2)
M
PWR3 24V DC
2
M
1 set
Danfoss Manifold
(types FHF or BasicPlus or SSM)
Thermal actuators, 230V / 24V* TWA-A
* Requires TWA conversion module
Dew Point Sensor CF-DS
1
3 1 2
AMZ 113
AB432956914381en-010201
4
NO
COM
NC
GND
V+
4
Dew Point Sensor
© Danfoss | HydronicS | Sub-systems | 2023.05 | 24
Application guide Danfoss Icon2™
Application 06
Continued
Installer App settings
Function
Factory setting
Explanation of heating and cooling for end user
Off
On
No cooling will occur until the reference room’s temperature has exceeded the set
temperature + set dead band for longer than the set time delay. For example, after the
room’s temperature has been over 25 °C (21 °C + 4K) for six hours.
PWM+ proportional control of actuator outputs
The room’s temperature will never be cooled further than 2 degrees above the set
temperature. If the temperature is set to 21 °C, for example, the room will be cooled
to 23 °C. Heating will activate as soon as the room temperature drops below the set
tem
perature.
Dead band heating/cooling changeover
4K
Time delay for changeover to cooling mode
6h
Heat pump optimizer – maintenance of minimum flow
●
●
Required accessories
AB432956914381en-010201
1
3-way motorized ball valve 230V AMZ 113 DN20
082G5419
2
Stainless steel floor heating manifold SSM-F, 2–12 groups
088U0752 to
088U0762
Set of 2 mounting brackets
088U0585
Set of 2 ball valves 1"
088U0822
3
Thermal actuator TWA-A 230V NC suitable for SSM-F manifold
088H3112
4
Dew point sensor CF-DS
088U0251
© Danfoss | HydronicS | Sub-systems | 2023.05 | 25
Application guide Danfoss Icon2™
Notes
AB432956914381en-010201
Drawings
© Danfoss | HydronicS | Sub-systems | 2023.05 | 26
Application guide Danfoss Icon2™
Application 07
3-pipe heating/cooling system with two 2-way control valves with
thermal actuators, changeover to cooling based on reference
thermostat
Application description
In this application, two 2-way motorized control valves are used t
o change over
between heating and cooling modes. The thermal actuator on the 2-way cooling
control valve will stay open as long as the system is in cooling mode. The thermal
actuator for heating will stay open as long as the system is in heating mode.
Optionally, you can use the 230V pump control PWR1 and RELAY heat source control.
If it is not possible to prevent the supply temperature from dropping below the dew
point in cooling mode, it is strongly recommended that you add a dew point sensor.
Condensation can result in permanent damage to the floor’s construction and finish.
The changeover between heating and cooling is controlled based on a reference
thermostat. In nearly all cases, the living room is used as the reference.
To prevent excessive switching between heating and cooling modes, the following
conditions must be met for the system to change over to cooling mode:
• The room temperature measured by the reference thermostat must exceed the set
room temperature + dead ban
d (adjustable from 0–4K).
• The reference thermostat did not have a heating demand during the time delay
(adjustable from 0–24 hours).
• If present, dew point monitoring must be inactive
• The room thermostat must have cooling enabled (default = enabled).
AB432956914381en-010201
Setting one thermostat as the reference thermostat
In this application, one thermostat is set up as a reference thermostat.
The temperature in this room determines whether the system is in heating or cooling
mode.
There are two ways to set up a reference thermostat:
1. Using the Installer App on a smartphone
2. Using the Installer menu on the thermostat itself
To do so, set the ME.6 setting to ON
Disabling cooling (Bathroom)
If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you
may want to disable cooling for this room. Cooling a bathroom will cause condensation
to form on the floor.
There are two ways to disable cooling mode for a room:
1. Using the Installer App
on a smartphone
2. Using the Installer menu on the thermostat itself
To do so, set the ME.7 setting to OFF
© Danfoss | HydronicS | Sub-systems | 2023.05 | 27
Application guide Danfoss Icon2™
App 7
5a
4
2
1
5b
1
Mains
Power
1
2
3
4
5
PT1000
2-way valve RA-C
EXT Input 2
3
Reference
Thermostat
EXT Input 1
M
PWR3 24V DC
M
L (PWR1)
N (PWR1)
(PWR1)
L (PWR2)
N (PWR2)
M
NO (RELAY)
NC (RELAY)
COM (RELAY)
2
M
1 set Danfoss Manifold
(types FHF or BasicPlus or SSM)
Thermal actuators, 230V / 24V* TWA-A
4
Dew Point Sensor CF-DS
5a
Thermal actuators, 230V / 24V* TWA-A
* Requires TWA conversion module
5b
Dew Point Sensor
Thermal actuators, 230V / 24V* TWA-A
* Requires TWA conversion module
AB432956914381en-010201
4
NO
COM
NC
GND
V+
* Requires TWA conversion module
5a
5b
© Danfoss | HydronicS | Sub-systems | 2023.05 | 28
Application guide Danfoss Icon2™
Application 07
Continued
Explanation of heating and cooling for end user
Installer App settings
No
cooling will occur until the reference room temperature has exceeded the set
temperature + set dead band for longer than the set time delay. For example, after the
room’s temperature has been over 25 °C (21 °C + 4K) for six hours.
Function
The room’s temperature will never be cooled further than 2 degrees above the set
temperature. If the temperature is set to 21 °C, for example, the room will be cooled
to 23 °C. Heating will activate as soon as the room temperature drops below the set
temperature.
PWM+ proportional control of actuator outputs
Factory setting
Off
Heat pump optimizer – maintenance of minimum flow
On
●
●
Dead band heating/cooling changeover
4K
Time delay for changeover to cooling mode
6h
Required accessories
1
2-way control valve RA-C DN20
013G3096
Compression ferrule set 22mm x 1" for RA-C 20
013U0135 (x4)
Stainless steel floor heating manifold SSM-F, 2–12 groups
088U0752 to
088U0762
Set of 2 mounting brackets
088U0585
Set of 2 ball
valves 1"
088U0822
3
Thermal actuator TWA-A 230V NC suitable for SSM-F manifold
088H3112
4
Dew point sensor CF-DS
088U0251
Thermal actuator TWA-A 230V NC suitable for RA-C DN20
088H3112 (x2)
2
5a/b
AB432956914381en-010201
© Danfoss | HydronicS | Sub-systems | 2023.05 | 29
Application guide Danfoss Icon2™
Notes
AB432956914381en-010201
Drawings
© Danfoss | HydronicS | Sub-systems | 2023.05 | 30
Application guide Danfoss Icon2™
Application 08
3-pipe heating/cooling system with 2 ball valves with actuators,
changeover to cooling based on reference thermostat
Application description
In this application, two 230V two-way motorized ball valves are used to change over
between heating and cooling modes. The ball valve for cooling will open if one or
more rooms require cooling. The ball valve for heating will open if one or more rooms
require heating.
If it is not possible to prevent the supply temperature from dropping below the dew
point in cooling mode, it is stro
ngly recommended that you add a dew point sensor.
Condensation can result in permanent damage to the floor’s construction and finish.
The changeover between heating and cooling is controlled based on a reference
thermostat. In nearly all cases, the living room is used as the reference.
To prevent excessive switching between heating and cooling modes, the following
conditions must be met for the system to change over to cooling mode:
• The room temperature measured by the reference thermostat must exceed the set
room temperature + dead band (adjustable from 0–4K).
• The reference thermostat did not have a heating demand during the time delay
(adjustable from 0–24 hours).
• If present, dew point monitoring must be inactive.
• The room thermostat must have cooling enabled (default = enabled).
AB432956914381en-010201
Setting one thermostat as the reference thermostat
In this application, one thermostat is set up as a reference thermostat.
The temperature in this room de
termines whether the system is in heating or cooling
mode.
There are two ways to set up a reference thermostat:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.6 setting to ON
Disabling cooling (Bathroom)
If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you
may want to disable cooling for this room. Cooling a bathroom will cause condensation
to form on the floor.
There are two ways to disable cooling mode for a room:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.7 setting to OFF
© Danfoss | HydronicS | Sub-systems | 2023.05 | 31
Application guide Danfoss Icon2™
AMZ 112 230V
PT1000
1b
Mains
Power
EXT Input 2
AMZ 112 230V
M
EXT Input 1
1a
M
NO (RELAY)
NC (RELAY)
COM (RELAY)
Reference
Thermostat
M
L (PWR1)
N (PWR1)
(PWR1)
L (PWR2)
N (PWR2)
M
PWR3 24V DC
App 8
1 set Danfoss Manifold
(types FHF
or BasicPlus or SSM)
Thermal actuators, 230V / 24V* TWA-A
4
AB432956914381en-010201
Dew Point Sensor CF-DS
1a
3 1 2
3 1 2
AMZ 112
AMZ 112
1b
4
NO
COM
NC
GND
V+
* Requires TWA conversion module
Dew Point Sensor
© Danfoss | HydronicS | Sub-systems | 2023.05 | 32
Application guide Danfoss Icon2™
Application 08
Continued
Installer App settings
Function
Factory setting
Explanation of heating and cooling for end user
Off
On
No cooling will occur until the reference room’s temperature has exceeded the set
temperature + set dead band for longer than the set time delay. For example, after the
room’s temperature has been over 25 °C (21 °C + 4K) for six hours.
PWM+ proportional control of actuator outputs
The room’s temperature will never be cooled further than 2 degrees above the set
temperature. If the temperature is set to 21 °C, for example, the room will be cooled
to 23 °C. Heating will activate as soon as the room temperature drops below the set
temperat
ure.
Dead band heating/cooling changeover
4K
Time delay for changeover to cooling mode
6h
Heat pump optimizer – maintenance of minimum flow
●
●
Required accessories
1a/b
2-way motorized ball valve 230V AMZ 112 DN20
082G5407 (x2)
Stainless steel floor heating manifold SSM-F, 2–12 groups
088U0752 to
088U0762
Set of 2 mounting brackets
088U0585
Set of 2 ball valves 1"
088U0822
3
Thermal actuator TWA-A 230V NC suitable for SSM-F manifold
088H3112
4
Dew point sensor CF-DS
088U0251
2
AB432956914381en-010201
© Danfoss | HydronicS | Sub-systems | 2023.05 | 33
Application guide Danfoss Icon2™
Notes
AB432956914381en-010201
Drawings
© Danfoss | HydronicS | Sub-systems | 2023.05 | 34
Application guide Danfoss Icon2™
Application 09
4-pipe heating/cooling system with 6-way motorized ball valve,
changeover to cooling based on reference thermostat
In this application, a 230V 6-way motorized ball valve is used to change over between
heating and cooling mo
des.
Setting one thermostat as the reference thermostat
In this application, one thermostat is set up as a reference thermostat.
The temperature in this room determines whether the system is in heating or cooling
mode.
The RELAY activates when the system is in heating mode and is used to control the 6-way
ball valve. The PWR1 output is active in both heating and cooling mode. It can optionally be
used to operate a 230V 2-way control valve. This acts as an additional shut-off valve when
there is no need for heat or cooling, reducing unnecessary consumption.
There are two ways to set up a reference thermostat:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.6 setting to ON
If it is not possible to prevent the supply temperature from dropping below the dew
point in cooling mode, it is strongly recommended that you add a dew point sensor.
Condensation can result in permanent damage to the floor’s construction and
finish.
Disabling cooling (Bathroom)
If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you
may want to disable cooling for this room. Cooling a bathroom will cause condensation
to form on the floor.
Application description
The changeover between heating and cooling is controlled based on a reference
thermostat. In nearly all cases, the living room is used as the reference.
To prevent excessive switching between heating and cooling modes, the following
conditions must be met for the system to change over to cooling mode:
• The room temperature measured by the reference thermostat must exceed the set room
temperature + dead band (adjustable from 0–4K).
• The reference thermostat did not have a heating demand during the time delay
(adjustable from 0–24 hours).
• If present, dew point monitoring must be inactive
• The room thermostat must have cooling enabled (default = enabled).
AB432956914381en-010201
There are two ways to disable cooling
mode for a room:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.7 setting to OFF
© Danfoss | HydronicS | Sub-systems | 2023.05 | 35
Application guide Danfoss Icon2™
App 9
6
Heating side
4-pipe rise
4
PORT 4
PORT 1
3
2
PORT 2
5
Mains
Power
PT1000
M
EXT Input 2
4-pipe rise
Cooling side
M
EXT Input 1
M
PWR3 24V DC
M
NO (RELAY)
NC (RELAY)
COM (RELAY)
4
L (PWR1)
N (PWR1)
(PWR1)
L (PWR2)
N (PWR2)
PORT 6
PORT 5
PORT 3
1
ChangeOver6 valve
Reference
Thermostat
ChangeOver6 actuator 230V
4
1 set Danfoss Manifold
(types FHF or BasicPlus or SSM)
5
Thermal actuators, 230V / 24V* TWA-A
* Requires TWA conversion module
6
AB432956914381en-010201
NO
COM
NC
GND
V+
AB-QM DN20 + TWA-Q 230V NC
Dew Point Sensor
Dew Point Sensor CF-DS
© Danfoss | HydronicS | Sub-systems | 2023.05 | 36
Application guide Danfoss Icon2™
Application 9
Continued
Explanation of heating and cooling for end u
ser
No cooling will occur until the reference room’s temperature has exceeded the set
temperature + set dead band for longer than the set time delay. For example, after the
room’s temperature has been over 25 °C (21 °C + 4K) for six hours.
The room’s temperature will never be cooled further than 2 degrees above the set
temperature. If the temperature is set to 21 °C, for example, the room will be cooled
to 23 °C. Heating will activate as soon as the room temperature drops below the set
temperature.
Installer App settings
Function
Factory setting
Off
On
●
PWM+ proportional control of actuator outputs
Heat pump optimizer – maintenance of minimum flow
●
Dead band heating/cooling changeover
4K
Time delay for changeover to cooling mode
6h
Required accessories
1
6-way ball valve ChangeOver6 DN20
003Z3151
2
Actuator 230V suitable for ChangeOver6 DN20
003Z3154
3
2-way control valve with flow regulator AB-QM DN20
003Z8203
Thermal actuator TWA-Q 230V NC suitabl
e for AB-QM DN20
082F1600
Threaded fittings R3/4" suitable for AB-QM DN20
003Z0233 (x2)
Stainless steel floor heating manifold SSM-F, 2–12 groups
088U0752 to
088U0762
Set of 2 mounting brackets
088U0585
Set of 2 ball valves 1"
088U0822
5
Thermal actuator TWA-A 230V NC suitable for SSM-F manifold
088H3112
6
Dew point sensor CF-DS
088U0251
4
AB432956914381en-010201
© Danfoss | HydronicS | Sub-systems | 2023.05 | 37
Application guide Danfoss Icon2™
Notes
AB432956914381en-010201
Drawings
© Danfoss | HydronicS | Sub-systems | 2023.05 | 38
Application guide Danfoss Icon2™
Application 10
4-pipe heating/cooling system with four 2-way control valves
with thermal actuators, changeover to cooling based on reference
thermostat
Application description
In this application, four 2-way motorized control valves are used to change over between
heating and cooling modes. The thermal actuators on the 2-way control valves for cooling
will stay open as long as the system i
s in cooling mode. The thermal actuators for heating
will be open as long as the system is in heating mode.
Optionally, you can use the 230V pump control PWR1 and RELAY heat source control.
If it is not possible to prevent the supply temperature from dropping below the dew
point in cooling mode, it is strongly recommended that you add a dew point sensor.
Condensation can result in permanent damage to the floor’s construction and finish.
The changeover between heating and cooling is controlled based on a reference
thermostat. In nearly all cases, the living room is used as the reference.
To prevent excessive switching between heating and cooling modes, the following
conditions must be met for the system to change over to cooling mode:
• The room temperature measured by the reference thermostat must exceed the set room
temperature + dead band (adjustable from 0–4K).
• The reference thermostat did not have a heating demand during the time delay
(adjustable from 0–24 hours).
If present, dew point monitoring must be inactive.
• The room thermostat must have cooling enabled (default = enabled).
AB432956914381en-010201
Setting one thermostat as the reference thermostat
In this application, one thermostat is set up as a reference thermostat.
The temperature in this room determines whether the system is in heating or cooling
mode.
There are two ways to set up a reference thermostat:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.6 setting to ON
Disabling cooling (Bathroom)
If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you
may want to disable cooling for this room. Cooling a bathroom will cause condensation
to form on the floor.
There are two ways to disable cooling mode for a room:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.7 setting to OFF
© Danfoss | HydronicS | Sub-syst
ems | 2023.05 | 39
Application guide Danfoss Icon2™
App 10
6
4
Heating supply
2
1
6
Cooling supply
1
6
Heating return
1
6
2
1
2-way valve RA-C
2
1 set Danfoss Manifold
(types FHF or BasicPlus or SSM)
3
Thermal actuators, 230V /
24V* TWA-A
Mains
Power
1
2
3
4
5
PT1000
3
EXT Input 2
M
EXT Input 1
Reference
Thermostat
M
PWR3 24V DC
M
NO (RELAY)
NC (RELAY)
COM (RELAY)
M
1
L (PWR1)
N (PWR1)
(PWR1)
L (PWR2)
N (PWR2)
Cooling return
4
Dew Point Sensor CF-DS
5
Thermal actuators, 230V / 24V* TWA-A
NO
COM
NC
GND
V+
* Requires TWA conversion
module
* Requires TWA conversion module
6
Thermal actuators, 230V / 24V* TWA-A
* Requires TWA conversion module
AB432956914381en-010201
Dew Point Sensor
6
4
© Danfoss | HydronicS | Sub-systems | 2023.05 | 40
Application guide Danfoss Icon2™
Application 10
Continued
Explanation of heating and cooling for end user
Installer App settings
No cooling will occur until the reference room temperature has exce
eded the set
temperature + set dead band for longer than the set time delay. For example, after the
room’s temperature has been over 25 °C (21 °C + 4K) for six hours.
Function
The room’s temperature will never be cooled further than 2 degrees above the set
temperature. If the temperature is set to 21 °C, for example, the room will be cooled
to 23 °C. Heating will activate as soon as the room temperature drops below the set
temperature.
PWM+ proportional control of actuator outputs
Factory setting
Off
Heat pump optimizer – maintenance of minimum flow
On
●
●
Dead band heating/cooling changeover
4K
Time delay for changeover to cooling mode
6h
Required accessories
1
2-way control valve RA-C DN20
013G3096
Compression ferrule set 22mm x 1" for RA-C 20
013U0135 (x8)
Stainless steel floor heating manifold SSM-F, 2–12 groups
088U0752 to
088U0762
Set of 2 mounting brackets
088U0585
Set of 2 ball valves 1"
088U0822
3
Thermal actuator TWA-A 230V NC suitable
for SSM-F manifold
088H3112
4
Dew point sensor CF-DS
088U0251
Thermal actuator TWA-A 230V NC suitable for RA-C DN20
088H3112 (x4)
2
5/6
AB432956914381en-010201
© Danfoss | HydronicS | Sub-systems | 2023.05 | 41
Application guide Danfoss Icon2™
Notes
AB432956914381en-010201
Drawings
© Danfoss | HydronicS | Sub-systems | 2023.05 | 42
Application guide Danfoss Icon2™
Application 11
4-pipe heating/cooling system with 6-way ball valve with fixed
heating and cooling flow temperature control, changeover
to cooling based on reference thermostat
Application description
The RELAY activates when the system is in heating mode and is used to control the 230V
6-way ball valve. The 230V pump control PWR1 is active in both heating and cooling
mode.
The supply water temperature set for both heating and cooling is controlled by the
TWA-Q thermal actuator connected to the ‘Shunt 24V DC’ output.
The PT1000 temperature sensor on the supply line measures the supply temperature.
If there is no demand for heat or cooling in one or more rooms, the actuator will remain
closed.
The AB-QM can also be used to set the desired maximum volumetric flow rate.
To prevent damage to the floor’s construction and finish, add a dew point sensor.
The changeover between heating and cooling is controlled based on a reference
thermostat. The living room is set as the reference.
To prevent excessive switching between heating and cooling modes, the following
conditions must be met for the system to change over to cooling mode:
• The room temperature measured by the reference thermostat must exceed the set room
temperature + dead band (adjustable 0–4K).
• The reference thermostat did not have a heating demand during the time delay
(adjustable from 0–24 hours).
• If present, dew point monitoring must be inactive.
• The room thermostat must have cooling enabled (default = enabled).
AB432956914381en-010201
Setting one thermostat as the reference thermostat
In this a
pplication, one thermostat is set up as a reference thermostat.
The temperature in this room determines whether the system is in heating or cooling
mode.
There are two ways to set up a reference thermostat:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.6 setting to ON
Disabling cooling (Bathroom)
If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you
may want to disable cooling for this room. Cooling a bathroom will cause condensation
to form on the floor.
There are two ways to disable cooling mode for a room:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.7 setting to OFF
© Danfoss | HydronicS | Sub-systems | 2023.05 | 43
Application guide Danfoss Icon2™
6
Heating side
4-pipe rise
4
PORT 4
PORT 1
App 11
5
2
9
PORT 2
PT1000
ChangeOver6 valve DN20
EXT Input 2
Mains
Power
EXT Input 1
M
PWR3 24V
DC
M
7
24V RT
M
24V RT
M
24V RT
8
Shunt 24V DC
3
4-pipe rise
Cooling side
NO (RELAY)
NC (RELAY)
COM (RELAY)
4
L (PWR1)
N (PWR1)
(PWR1)
L (PWR2)
N (PWR2)
PORT 6
PORT 5
PORT 3
1
ChangeOver6 actuator 230V
6
Dew Point Sensor CF-DS
7
Thermal actuators, 230V / 24V* TWA-A
8
* Requires TWA conversion module
8
9
AB432956914381en-010201
Circulationpump
Heatexchanger
2
3
NO
COM
NC
GND
V+
ESM-11 PT1000-sensor
1: Brown
5
2: Black
1 set Danfoss Manifold
(types FHF or BasicPlus or SSM)
3: Blue
Reference
Thermostat
4
N
L
AB-QM DN20 + TWA-Q 24V NC
ESM-11
(PT-1000)
Dew Point Sensor
6
5
© Danfoss | HydronicS | Sub-systems | 2023.05 | 44
Application guide Danfoss Icon2™
Application 11
Continued
Required accessories
Explanation of heating and cooling for end user
No cooling will occur until the reference room temperature has exceeded the set
temperature + set dead band for longer than the set time delay. For example, after the
room’s temperature has b
een over 25 °C (21 °C + 4K) for six hours.
1
6-way ball valve ChangeOver6 DN20
003Z3151
2
Actuator 230V suitable for ChangeOver6 DN20
003Z3154
The room’s temperature will never be cooled further than 2 degrees above the set
temperature. If the temperature is set to 21 °C, for example, the room will be cooled
to 23 °C. Heating will activate as soon as the room temperature drops below the set
temperature.
3
2-way control valve with flow regulator AB-QM DN20
003Z8203
Thermal actuator TWA-Q 24V NC suitable for AB-QM DN20
082F1602
Threaded fittings R3/4" suitable for AB-QM DN20
003Z0233 (x2)
Stainless steel floor heating manifold SSM-F, 2–12 groups
088U0752 to
088U0762
Set of 2 mounting brackets
088U0585
Set of 2 ball valves 1"
088U0822
5
PT1000 temperature sensor ESM-11
087B1165
6
Dew point sensor CF-DS
088U0251
7
Thermal actuator TWA-A 230V NC suitable for SSM-F manifold
088H3112
8
“Circulation pump Wilo Para 15-130/6”
145H4269
9
Heat exchange
r XB06H-1-26
145H3671
4
Installer App settings
Function
Factory setting
Off
On
●
PWM+ proportional control of actuator outputs
Heat pump optimizer – maintenance of minimum flow
●
●
PWR1 switch-on delay of 3 minutes
Dead band heating/cooling changeover
4K
Time delay for changeover to cooling mode
6h
Heating supply temperature
40.0 °C
Cooling supply temperature
18.0 °C
Heating safety temperature
50.0 °C
Cooling safety temperature
17.0 °C
AB432956914381en-010201
© Danfoss | HydronicS | Sub-systems | 2023.05 | 45
Application guide Danfoss Icon2™
Notes
AB432956914381en-010201
Drawings
© Danfoss | HydronicS | Sub-systems | 2023.05 | 46
Application guide Danfoss Icon2™
Application 12
4-pipe heating/cooling system with 6-way ball valve with
demand-controlled heating supply temperature and fixed cooling
supply temperature, changeover to cooling based on reference
thermostat
Application description
The RELAY activates when the system is in heating
mode and is used to control
the 230V 6-way ball valve. The 230V pump control PWR1 is active in both heating and
cooling mode.
The water temperature for heating and cooling is controlled by the TWA-Q thermal
actuator connected to output ‘Shunt 24V DC’. The optimum supply temperature in
heating mode is calculated based on the heating demand for the home. The PT1000
sensor on the supply line measures the temperature of the water. If there is no
demand for heat or cooling in one or more rooms, the actuator will remain closed.
The AB-QM can also be used to set the desired maximum volumetric flow rate. To
prevent damage to the floor’s construction and finish, add a dew point sensor.
The changeover between heating and cooling is controlled based on a reference
thermostat. The living room is set as the reference.
To prevent excessive switching between heating and cooling mode, the following
conditions must be met for the system to change over to cooling mode:
• The room temperature m
easured by the reference thermostat must exceed the set
room temperature + dead band (adjustable 0–4K).
• There was no heating demand for the reference thermostat during the time delay
(adjustable 0–24 hours).
• If present, dew point monitoring must be inactive.
• The room thermostat must have cooling enabled (default = enabled).
AB432956914381en-010201
Setting one thermostat as the reference thermostat
In this application, one thermostat is set up as a reference thermostat.
The temperature in this room determines whether the system is in heating or cooling
mode.
There are two ways to set up a reference thermostat:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.6 setting to ON
Disabling cooling (Bathroom)
If the bathroom has underfloor heating and has an Icon2™ room thermostat, you can
disable cooling for this room. Cooling a bathroom will cause condensation to form on
the floor.
There are two w
ays to disable cooling mode for a room:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.7 setting to OFF
© Danfoss | HydronicS | Sub-systems | 2023.05 | 47
Application guide Danfoss Icon2™
6
Heating side
4-pipe rise
4
PORT 4
PORT 1
App 12
5
2
9
PORT 2
PT1000
ChangeOver6 valve DN20
EXT Input 2
Mains
Power
EXT Input 1
M
PWR3 24V DC
M
7
24V RT
M
24V RT
M
24V RT
8
Shunt 24V DC
3
4-pipe rise
Cooling side
NO (RELAY)
NC (RELAY)
COM (RELAY)
4
L (PWR1)
N (PWR1)
(PWR1)
L (PWR2)
N (PWR2)
PORT 6
PORT 5
PORT 3
1
ChangeOver6 actuator 230V
6
Dew Point Sensor CF-DS
7
Thermal actuators, 230V / 24V* TWA-A
8
* Requires TWA conversion module
8
9
AB432956914381en-010201
Circulationpump
Heatexchanger
2
3
NO
COM
NC
GND
V+
ESM-11 PT1000-sensor
1: Brown
5
2: Black
1 set Danfoss Manifold
(types FHF or BasicPlus or SSM)
3: Blue
Reference
Thermostat
4
N
L
AB-QM DN20 + TWA-Q 24V NC
ESM-11
(PT-1000)
Dew Point Sensor
6
5
© Danfoss | HydronicS | Sub-systems | 2023.05 | 48
Application guide Danfoss Icon2™
Application 12
Continued
Required accessories
Explanation of heating and cooling for end user
No cooling will occur until the reference room temperature has exceeded the set
temperature + set dead band for longer than the set time delay. For example, after
the room’s temperature has been over 25 °C (21 °C + 4K) for six hours.
1
6-way ball valve ChangeOver6 DN20
003Z3151
2
Actuator 230V suitable for ChangeOver6 DN20
003Z3154
The room’s temperature will never be cooled further than 2 degrees above the set
temperature. If the temperature is set to 21 °C, for example, the room will be cooled
to 23 °C. Heating will activate as soon as the room temperature drops below the set
temperature.
3
2-way control valve with flow regulator AB-QM DN20
003Z8203
Thermal actuator TWA-Q 24V NC suitable for AB-QM DN20
082F1602
Threaded fittings R3/4" sui
table for AB-QM DN20
003Z0233 (x2)
Stainless steel floor heating manifold SSM-F, 2–12 groups
088U0752 to
088U0762
Set of 2 mounting brackets
088U0585
Set of 2 ball valves 1"
088U0822
5
PT1000 temperature sensor ESM-11
087B1165
6
Dew point sensor CF-DS
088U0251
7
Thermal actuator TWA-A 230V NC suitable for SSM-F manifold
088H3112
8
“Circulation pump Wilo Para 15-130/6”
145H4269
9
Heat exchanger XB06H-1-26
145H3671
4
Installer App settings
Function
Factory setting
Off
On
●
PWM+ proportional control of actuator outputs
Heat pump optimizer – maintenance of minimum flow
●
●
PWR1 switch-on delay of 3 minutes
Dead band heating/cooling changeover
4K
Time delay for changeover to cooling mode
6h
Heating supply temperature range, demand-controlled
25.0–40.0 °C
Heating safety temperature
50.0 °C
Cooling supply temperature
18.0 °C
Cooling safety temperature
17.0 °C
AB432956914381en-010201
© Danfoss | HydronicS | Sub-systems | 2023.05 |
49
Application guide Danfoss Icon2™
Notes
AB432956914381en-010201
Drawings
© Danfoss | HydronicS | Sub-systems | 2023.05 | 50
Application guide Danfoss Icon2™
Application 13
4-pipe heating/cooling system with 6-way ball valve with fixed
heating and cooling supply temperature control, changeover
to cooling based on external (manual) potential-free NO contact
Application description
The RELAY activates when the system is in heating mode and is used to control the 230V
6-way ball valve. The 230V pump control PWR1 is active in both heating and cooling
mode.
The supply water temperature set for both heating and cooling is controlled by
the TWA-Q thermal actuator connected to the ‘Shunt 24V DC’ output. The PT1000
temperature sensor on the supply line measures the supply temperature. If there is
no demand for heat or cooling in one or more rooms, the actuator will remain closed.
The AB-QM can also be used to set the desired maximum volumetric flow rate. To prevent
damage to
the floor’s construction and finish, add a dew point sensor.
Disabling cooling (Bathroom)
If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you
may want to disable cooling for this room. Cooling a bathroom will cause condensation
to form on the floor.
There are two ways to disable cooling mode for a room:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.7 setting to OFF
A relay or potential-free contact is connected to input IN2 to control the changeover
between heating and cooling modes. When the external contact is closed, the system will
change over to cooling mode.
AB432956914381en-010201
© Danfoss | HydronicS | Sub-systems | 2023.05 | 51
App 13
Application guide Danfoss Icon2™
6
4
PORT 4
PORT 1
Heating side
4-pipe rise
2
9
PORT 2
PT1000
ChangeOver6 valve DN20
EXT Input 2
Mains
Power
EXT Input 1
M
PWR3 24V DC
M
7
24V RT
M
24V RT
M
24V RT
8
Shunt 24
V DC
3
NO (RELAY)
NC (RELAY)
COM (RELAY)
4-pipe rise
Cooling side
4
L (PWR1)
N (PWR1)
(PWR1)
L (PWR2)
N (PWR2)
PT1000
1
PORT 6
PORT 5
EXT Input 2
PORT 3
EXT Input 1
PWR3 24V DC
App 13
5
ChangeOver6 actuator 230V
AB-QM DN20 + TWA-Q 24V NC
1 set Danfoss Manifold
(types FHF or BasicPlus or SSM)
5
ESM-11 PT1000-sensor
6
Dew Point Sensor CF-DS
7
Thermal actuators, 230V / 24V* TWA-A
8
Circulationpump
NC
GND
V+
6
10
10
AB432956914381en-010201
2
3
NO
COM
NC
GND
V+
1: Brown
* Requires TWA conversion module
ESM-11
9
Heatexchanger
(PT-1000)
nt Sensor
8
3: Blue
External
changeover
2: Black
N
L
4
ESM-11
(PT-1000)
Dew Point Sensor
6
10
5
External switch for manual changeover
between heating and cooling
5
© Danfoss | HydronicS | Sub-systems | 2023.05 | 52
Application guide Danfoss Icon2™
Application 13
Continued
Installer App settings
Function
Required accessories
Factory setting
1
6-way ball valve ChangeOver6 DN20
003Z3151
Off
On
2
Actu
ator 230V suitable for ChangeOver6 DN20
003Z3154
●
3
2-way control valve with flow regulator AB-QM DN20
003Z8203
Thermal actuator TWA-Q 24V NC suitable for AB-QM DN20
082F1602
Threaded fittings R3/4" suitable for AB-QM DN20
003Z0233 (x2)
Stainless steel floor heating manifold SSM-F, 2–12 groups
088U0752 to
088U0762
Set of 2 mounting brackets
088U0585
Set of 2 ball valves 1"
088U0822
5
PT1000 temperature sensor ESM-11
087B1165
6
Dew point sensor CF-DS
088U0251
7
Thermal actuator TWA-A 230V NC suitable for SSM-F manifold
088H3112
8
“Circulation pump Wilo Para 15-130/6”
145H4269
9
Heat exchanger XB06H-1-26
145H3671
10
Wall switch for manual changeover to cooling
External supplier
PWM+ proportional control of actuator outputs
Heat pump optimizer – maintenance of minimum flow
●
●
PWR1 switch-on delay of 3 minutes
Heating supply temperature
40.0 °C
Cooling supply temperature
18.0 °C
Heating safety temperature
50.0 °C
Cooling safety t
emperature
17.0 °C
AB432956914381en-010201
4
© Danfoss | HydronicS | Sub-systems | 2023.05 | 53
Application guide Danfoss Icon2™
Notes
AB432956914381en-010201
Drawings
© Danfoss | HydronicS | Sub-systems | 2023.05 | 54
Application guide Danfoss Icon2™
Application 14
4-pipe heating/cooling system with 6-way ball valve with
demand-controlled heating supply temperature and fixed
cooling supply temperature, changeover to cooling based
on external (manual) potential-free NO contact
Application description
The RELAY activates when the system is in heating mode and is used to control the
230V 6-way ball valve. The 230V pump control PWR1 is active in both heating and
cooling mode.
The water temperature for heating and cooling is controlled by the TWA-Q thermal
actuator connected to output ‘Shunt 24V DC’. The optimum supply temperature in
heating mode is calculated based on the heating demand for the home. The PT1000
sensor on the supply line measures the temperature of
the water. If there is no
demand for heat or cooling in one or more rooms, the actuator will remain closed.
Disabling cooling (Bathroom)
If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you
may want to disable cooling for this room. Cooling a bathroom will cause condensation
to form on the floor.
There are two ways to disable cooling mode for a room:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.7 setting to OFF
The AB-QM can also be used to set the desired maximum volumetric flow rate.
To prevent damage to the floor’s construction and finish, add a dew point sensor.
A relay or potential-free contact is connected to input IN2 to control the changeover
between heating and cooling modes. When the external contact is closed, the system
will change over to cooling mode.
AB432956914381en-010201
© Danfoss | HydronicS | Sub-systems | 2023.05 | 55
Application guide Danfoss Icon2™
6
Heating side
4-pipe rise
4
PORT 4
PORT 1
App 14
5
2
9
PORT 2
PT1000
ChangeOver6 valve DN20
EXT Input 2
Mains
Power
EXT Input 1
M
PWR3 24V DC
M
7
24V RT
M
24V RT
M
24V RT
8
Shunt 24V DC
3
4-pipe rise
Cooling side
NO (RELAY)
NC (RELAY)
COM (RELAY)
4
L (PWR1)
N (PWR1)
(PWR1)
L (PWR2)
N (PWR2)
PORT 6
PORT 5
PORT 3
1
ChangeOver6 actuator 230V
6
Dew Point Sensor CF-DS
7
Thermal actuators, 230V / 24V* TWA-A
8
* Requires TWA conversion module
8
Circulationpump
9
Heatexchanger
10
External switch for manual changeover
between heating and cooling
AB432956914381en-010201
2
3
NO
COM
NC
GND
V+
ESM-11 PT1000-sensor
1: Brown
5
2: Black
1 set Danfoss Manifold
(types FHF or BasicPlus or SSM)
3: Blue
4
N
L
AB-QM DN20 + TWA-Q 24V NC
ESM-11
(PT-1000)
Dew Point Sensor
6
10
5
© Danfoss | HydronicS | Sub-systems | 2023.05 | 56
Application guide Danfoss Icon2™
Application 14
Continued
Installer App settings
Function
Required accessori
es
Factory setting
1
6-way ball valve ChangeOver6 DN20
003Z3151
Off
On
2
Actuator 230V suitable for ChangeOver6 DN20
003Z3154
●
3
2-way control valve with flow regulator AB-QM DN20
003Z8203
Thermal actuator TWA-Q 24V NC suitable for AB-QM DN20
082F1602
Threaded fittings R3/4" suitable for AB-QM DN20
003Z0233 (x2)
Stainless steel floor heating manifold SSM-F, 2–12 groups
088U0752 to
088U0762
Set of 2 mounting brackets
088U0585
Set of 2 ball valves 1"
088U0822
5
PT1000 temperature sensor ESM-11
087B1165
6
Dew point sensor CF-DS
088U0251
7
Thermal actuator TWA-A 230V NC suitable for SSM-F manifold
088H3112
8
“Circulation pump Wilo Para 15-130/6”
145H4269
9
Heat exchanger XB06H-1-26
145H3671
PWM+ proportional control of actuator outputs
Heat pump optimizer – maintenance of minimum flow
●
●
PWR1 switch-on delay of 3 minutes
Heating supply temperature range, demand-controlled
25.0–40.0 °C
Heating safety temperature
50.0 °C
Cooling
supply temperature
18.0 °C
Cooling safety temperature
17.0 °C
4
10
AB432956914381en-010201
Wall switch for manual changeover to cooling
External supplier
© Danfoss | HydronicS | Sub-systems | 2023.05 | 57
Application guide Danfoss Icon2™
Notes
AB432956914381en-010201
Drawings
© Danfoss | HydronicS | Sub-systems | 2023.05 | 58
Application guide Danfoss Icon2™
Application 15
2-pipe heating/cooling system with (hybrid) heat pump,
changeover to cooling based on external (manual) potential-free
NO contact
Application description
This application makes it possible to send separate control signals for both heating and
cooling demands to a heat pump or hybrid system. The PWR1 (230V output) is active
when there is a heating demand and the RELAY (potential-free contact) is used for
cooling.
To enable the PWR1 230V output to control the heat pump based on heating demand,
the AMZ connection box converts the signal to a potential-free NO contact.
Disabling cooling (Bathr
oom)
If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you
may want to disable cooling for this room. Cooling a bathroom will cause condensation
to form on the floor.
There are two ways to disable cooling mode for a room:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.7 setting to OFF
If it is not possible to prevent the supply temperature from dropping below the dew
point in cooling mode, it is strongly recommended that you add a dew point sensor.
Condensation can result in permanent damage to the floor’s construction and finish.
A relay or potential-free contact is connected to input IN2 to control the changeover
between heating and cooling modes. When the external contact is closed, the system
will change over to cooling mode.
AB432956914381en-010201
© Danfoss | HydronicS | Sub-systems | 2023.05 | 59
Application guide Danfoss Icon2™
App 15
4
2
1
1
2
PT1000
Hybrid gas
/ Heat pump
Mains
Power
EXT Input 2
3
EXT Input 1
M
PWR3 24V DC
M
NO (RELAY)
NC (RELAY)
COM (RELAY)
M
L (PWR1)
N (PWR1)
(PWR1)
L (PWR2)
N (PWR2)
M
1 set Danfoss Manifold
(types FHF or BasicPlus or SSM)
Thermal actuators, 230V / 24V* TWA-A
AB432956914381en-010201
External relay
6
External switch for manual changeover
between heating and cooling
24V~
AMZ connection box
Bridge
1
2
3
4
5
Hybrid gas / Heat pump
NO
COM
NC
GND
V+
5
NO
C
NC
L
N
C
NO
Dew Point Sensor CF-DS
N
4
L
* Requires TWA conversion module
Dew Point Sensor
6
© Danfoss | HydronicS | Sub-systems | 2023.05 | 60
Application guide Danfoss Icon2™
Application 15
Continued
Installer App settings
Function
Factory setting
Off
●
PWM+ proportional control of actuator outputs
Heat pump optimizer – maintenance of minimum flow
On
●
Required accessories
AB432956914381en-010201
1
Heat pump or hybrid system
External supplier
2
Stainless steel floor heating manifold SSM-F, 2–12 groups
088U0752 to
088U0762
Set of 2 mounting brackets
088U0585
Set of 2 ball valves 1"
088U0822
3
Thermal actuator TWA-A 230V NC suitable for SSM-F manifold
088H3112
4
Dew point sensor CF-DS
088U0251
5
External relay - AMZ connection box
082G1636
6
Wall switch for manual changeover to cooling
External supplier
© Danfoss | HydronicS | Sub-systems | 2023.05 | 61
Application guide Danfoss Icon2™
Notes
AB432956914381en-010201
Drawings
© Danfoss | HydronicS | Sub-systems | 2023.05 | 62
Application guide Danfoss Icon2™
Application 16
3-pipe heating/cooling system with 3-way motorized ball valve,
changeover to cooling based on external potential-free NO
contact
Application description
In this application, a 230V 3-way motorized ball valve is used to change over between
heating and cooling modes.
The PWR1 230V output activates when the system is in cooling mode.
If it is not possible to prevent the supply temperature from dropping below the dew
point in cooling mode,
it is strongly recommended that you add a dew point sensor.
Condensation can result in permanent damage to the floor’s construction and finish.
Disabling cooling (Bathroom)
If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you
may want to disable cooling for this room. Cooling a bathroom will cause condensation
to form on the floor.
There are two ways to disable cooling mode for a room:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.7 setting to OFF
A relay or potential-free contact is connected to input IN2 to control the changeover
between heating and cooling modes. When the external contact is closed, the system
will change over to cooling mode.
AB432956914381en-010201
© Danfoss | HydronicS | Sub-systems | 2023.05 | 63
Application guide Danfoss Icon2™
App 16
2
1
4
Mains
Power
PT1000
AMZ 113 230V
EXT Input 2
M
EXT Input 1
M
3
NO (RELAY)
NC (RELAY)
COM (RELAY)
M
L (PWR1)
N (PWR1)
(PWR1)
L (PWR2)
N (PWR2)
M
PWR3 24V DC
2
1 set Danfoss Manifold
(types FHF or BasicPlus or SSM)
Thermal actuators, 230V / 24V* TWA-A
4
Dew Point Sensor CF-DS
5
External switch for manual changeover
between heating and cooling
1
3 1 2
AMZ 113
4
NO
COM
NC
GND
V+
* Requires TWA conversion module
Dew Point Sensor
5
AB432956914381en-010201
© Danfoss | HydronicS | Sub-systems | 2023.05 | 64
Application guide Danfoss Icon2™
Application 16
Continued
Installer App settings
Function
Factory setting
Off
●
PWM+ proportional control of actuator outputs
Heat pump optimizer – maintenance of minimum flow
On
●
Required accessories
AB432956914381en-010201
1
3-way motorized ball valve 230V AMZ 113 DN20
082G5419
2
Stainless steel floor heating manifold SSM-F, 2–12 groups
088U0752 to
088U0762
Set of 2 mounting brackets
088U0585
Set of 2 ball valves 1"
088U0822
3
Thermal actuator TWA-A 230V NC suitable for SSM-F manifold
088H3112
4
De
w point sensor CF-DS
088U0251
5
Wall switch for manual changeover to cooling
External supplier
© Danfoss | HydronicS | Sub-systems | 2023.05 | 65
Application guide Danfoss Icon2™
Notes
AB432956914381en-010201
Drawings
© Danfoss | HydronicS | Sub-systems | 2023.05 | 66
Application guide Danfoss Icon2™
Application 17
3-pipe heating/cooling system with two 2-way control valves
with thermal actuators, changeover to cooling based on external
potential-free NO contact
Application description
In this application, two 2-way motorized control valves are used to change over
between heating and cooling modes. The thermal actuator on the 2-way cooling
control valve will stay open as long as the system is in cooling mode. The thermal
actuator for heating will stay open as long as the system is in heating mode.
Optionally, you can use the 230V pump control PWR1 and RELAY heat source control.
Disabling cooling (Bathroom)
If there is a bathroom with underfloor heating and an Icon2
™ room thermostat, you
may want to disable cooling for this room. Cooling a bathroom will cause condensation
to form on the floor.
There are two ways to disable cooling mode for a room:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.7 setting to OFF
If it is not possible to prevent the supply temperature from dropping below the dew
point in cooling mode, it is strongly recommended that you add a dew point sensor.
Condensation can result in permanent damage to the floor’s construction and finish.
A relay or potential-free contact is connected to input IN2 to control the changeover
between heating and cooling modes. When the external contact is closed, the system
will change over to cooling mode.
AB432956914381en-010201
© Danfoss | HydronicS | Sub-systems | 2023.05 | 67
Application guide Danfoss Icon2™
App 17
5a
4
2
1
5b
1
1
2
3
4
5
PT1000
1 set Danfoss Manifold
(types FHF or BasicPlus or SSM)
Mains
Power
EXT Input 2
M
EXT Input 1
2-way valve RA-C
M
3
PWR3 24V DC
M
L (PWR1)
N (PWR1)
(PWR1)
L (PWR2)
N (PWR2)
M
NO (RELAY)
NC (RELAY)
COM (RELAY)
2
Thermal actuators, 230V / 24V* TWA-A
* Requires TWA conversion module
5a
Dew Point Sensor CF-DS
Thermal actuators, 230V / 24V* TWA-A
* Requires TWA conversion module
5b
4
Thermal actuators, 230V / 24V* TWA-A
Dew Point Sensor
* Requires TWA conversion module
6
External switch for manual changeover
between heating and cooling
AB432956914381en-010201
NO
COM
NC
GND
V+
4
5a
5b
6
© Danfoss | HydronicS | Sub-systems | 2023.05 | 68
Application guide Danfoss Icon2™
Application 17
Continued
Installer App settings
Function
Factory setting
Off
●
PWM+ proportional control of actuator outputs
Heat pump optimizer – maintenance of minimum flow
On
●
Required accessories
1
2-way control valve RA-C DN20
013G3096
Compression ferrule set 22mm x 1" for RA-C 20
013U0135 (x4)
Stainless steel floor heating
manifold SSM-F, 2–12 groups
088U0752 to
088U0762
Set of 2 mounting brackets
088U0585
Set of 2 ball valves 1"
088U0822
3
Thermal actuator TWA-A 230V NC suitable for SSM-F manifold
088H3112
4
Dew point sensor CF-DS
088U0251
Thermal actuator TWA-A 230V NC suitable for RA-C DN20
088H3112 (x2)
Wall switch for manual changeover to cooling
External supplier
2
5a/b
6
AB432956914381en-010201
© Danfoss | HydronicS | Sub-systems | 2023.05 | 69
Application guide Danfoss Icon2™
Notes
AB432956914381en-010201
Drawings
© Danfoss | HydronicS | Sub-systems | 2023.05 | 70
Application guide Danfoss Icon2™
Application 18
3-pipe heating/cooling system with two ball valves with
actuators, changeover to cooling based on external potentialfree NO contact
Application description
In this application, two 230V two-way motorized ball valves are used to change over
between heating and cooling modes. The ball valve for cooling will open if one or
more rooms require cooling. The b
all valve for heating will open if one or more rooms
require heating.
If it is not possible to prevent the supply temperature from dropping below the dew
point in cooling mode, it is strongly recommended that you add a dew point sensor.
Condensation can result in permanent damage to the floor’s construction and finish.
Disabling cooling (Bathroom)
If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you
may want to disable cooling for this room. Cooling a bathroom will cause condensation
to form on the floor.
There are two ways to disable cooling mode for a room:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.7 setting to OFF
A relay or potential-free contact is connected to input IN2 to control the changeover
between heating and cooling modes. When the external contact is closed, the system
will change over to cooling mode.
AB432956914381en-010201
© Danfoss | HydronicS | Sub-syste
all valve for heating will open if one or more rooms
require heating.
If it is not possible to prevent the supply temperature from dropping below the dew
point in cooling mode, it is strongly recommended that you add a dew point sensor.
Condensation can result in permanent damage to the floor’s construction and finish.
Disabling cooling (Bathroom)
If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you
may want to disable cooling for this room. Cooling a bathroom will cause condensation
to form on the floor.
There are two ways to disable cooling mode for a room:
1. Using the Installer App on a smartphone
2. Using the installer menu on the thermostat itself
To do so, set the ME.7 setting to OFF
A relay or potential-free contact is connected to input IN2 to control the changeover
between heating and cooling modes. When the external contact is closed, the system
will change over to cooling mode.
AB432956914381en-010201
© Danfoss | HydronicS | Sub-syste
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