Danfoss Icon2 Service Manual

Zone controls for hydronic floor heating

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Danfoss Icon2™

Zone controls for hydronic floor heating

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Page 1 Service Manual Danfoss Icon2™ Zone controls for hydronic floor heating icon.danfoss.com...
Page 2: Table Of Contents
Danfoss Icon2™ Room Thermostat installer settings menu ......8 How to access the installer menu 8 ............
Page 4: Select Your Icon2™ Solution
Optional oor sensor mostat infrared oor sensor No settings or display thermostat thermostat Part number: Part number: Part number: Part number: Part number: Part number: 088U2121 088U2122 088U2120 088U2128 088U2125 088U1110 4 | © Copyright Danfoss Climate Solutions | 2023.01 AB432956914381en-010101...
Page 5: Thermal Actuators
New installation Optional smartphone control The Icon2™ Master Controller actuator outputs use 230V If the Icon2™ Master 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™...
Page 6: Rapid Commissioning
Bluetooth on your smartphone Master Controller Inputs and outputs on the connected devices To set up the Icon2™ Master Controller, you will need • Press > until the LED starts ashing green. Every actuator will instantly be detected when you insert the to use the App on your smartphone or tablet.
Page 7: Re-Pairing Or Replacing A Device
If a wireless thermostat was reset without the regulator being plugged into an outlet or in case of a faulty thermostat, you can use This can be the case because: the Icon2™ App to clear the actuator outputs. - The actuator outputs were paired incorrectly Procedure...
Page 8: Danfoss Icon2™ Room Thermostat Installer Settings Menu
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. 8 | © Copyright Danfoss Climate Solutions | 2023.01 AB432956914381en-010101...
Page 9: Troubleshooting
Lost connection to Ally™ Gateway Lost connection to Icon2™ Thermostat Faulty actuator or loose wire Faulty actuator or loose wire Look up error message in Icon2™ App Need more help? Download the App AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 9...
Page 10 3 minutes by default. IN2 input for changeover to cooling* 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 * If you enable IN2, the system will function according to Application 04 rooms and prioritizes longer pipes in large rooms within the system.
Page 11 (types FHF or BasicPlus or SSM) Thermal actuators, 230V / 24V* TWA-A * Requires TWA conversion module Dew Point Sensor CF-DS External switch for manual changeover between heating and cooling Dew Point Sensor AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 11...
Page 12 Desired supply temperature 40.0 °C 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 Required accessories automatic and continuous.
Page 13 Circulation pump 1 set Danfoss Manifold (types FHF or BasicPlus or SSM) Thermal actuators, 230V / 24V* TWA-A * Requires TWA conversion module ESM-11 ESM-11 (PT-1000) (PT-1000) Thermal actuator 24V TWA-A AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 13...
Page 14 3 minutes by default. Required accessories 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...
Page 15 Circulation pump 1 set Danfoss Manifold (types FHF or BasicPlus or SSM) Thermal actuators, 230V / 24V* TWA-A * Requires TWA conversion module ESM-11 ESM-11 (PT-1000) (PT-1000) Thermal actuator 24V TWA-A AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 15...
Page 16 Stainless steel floor heating manifold SSM-F, 2–12 groups 088U0762 Set of 2 mounting brackets 088U0585 Set of 2 ball valves 1" 088U0822 Thermal actuator TWA-A 230V NC suitable for SSM-F manifold 088H3112 PT1000 temperature sensor ESM-11 087B1165 16 | © Copyright Danfoss Climate Solutions | 2023.01 AB432956914381en-010101...
Page 17 Dew Point Sensor CF-DS 1 set Danfoss Manifold (types FHF or BasicPlus or SSM) Thermal actuators, 230V / 24V* TWA-A * Requires TWA conversion module ESM-11 ESM-11 (PT-1000) (PT-1000) Dew Point Sensor AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 17...
Page 18 The heat pump signals Heat pump optimizer – maintenance of minimum flow the Danfoss Icon™ Master Controller to start cooling using a potential-free NO contact PWR1 switch-on delay of 3 minutes connected to IN2.
Page 19 Thermal actuators, 230V / 24V* TWA-A * Requires TWA conversion module Dew Point Sensor CF-DS (Volt free) External voltage free contact from Heat demand signal heatpump for changeover between Dew Point Sensor heating and cooling AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 19...
Page 20 If it is not possible to prevent the supply temperature from dropping below the dew If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you point in cooling mode, it is strongly recommended that you add a dew point sensor.
Page 21 (types FHF or BasicPlus or SSM) Thermal actuators, 230V / 24V* TWA-A * Requires TWA conversion module Dew Point Sensor CF-DS 24V~ External relay (Hybrid) heat pump Dew Point Sensor AMZ connection box Bridge AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 21...
Page 22 088U0585 Set of 2 ball valves 1" 088U0822 Thermal actuator TWA-A 230V NC suitable for SSM-F manifold 088H3112 Dew point sensor CF-DS 088U0251 External relay - AMZ connection box 082G1636 22 | © Copyright Danfoss Climate Solutions | 2023.01 AB432956914381en-010101...
Page 24: Based On Reference Thermostat
In nearly all cases, the living room is used as the reference. 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 prevent excessive switching between heating and cooling modes, the following to form on the floor.
Page 25 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 3 1 2 Dew Point Sensor AMZ 113 AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 25...
Page 26 Stainless steel floor heating manifold SSM-F, 2–12 groups 088U0762 Set of 2 mounting brackets 088U0585 Set of 2 ball valves 1" 088U0822 Thermal actuator TWA-A 230V NC suitable for SSM-F manifold 088H3112 Dew point sensor CF-DS 088U0251 26 | © Copyright Danfoss Climate Solutions | 2023.01 AB432956914381en-010101...
Page 28: Application 10
Condensation can result in permanent damage to the floor’s construction and finish. 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 The changeover between heating and cooling is controlled based on a reference to form on the floor.
Page 29 * Requires TWA conversion module Dew Point Sensor CF-DS Thermal actuators, 230V / 24V* TWA-A * Requires TWA conversion module Dew Point Sensor Thermal actuators, 230V / 24V* TWA-A * Requires TWA conversion module AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 29...
Page 30 Set of 2 ball valves 1" 088U0822 Thermal actuator TWA-A 230V NC suitable for SSM-F manifold 088H3112 Dew point sensor CF-DS 088U0251 5a/b Thermal actuator TWA-A 230V NC suitable for RA-C DN20 088H3112 (x2) 30 | © Copyright Danfoss Climate Solutions | 2023.01 AB432956914381en-010101...
Page 32: Changeover To Cooling Based On Reference Thermostat
Disabling cooling (Bathroom) The changeover between heating and cooling is controlled based on a reference If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you thermostat. In nearly all cases, the living room is used as the reference.
Page 33 (types FHF or BasicPlus or SSM) Thermal actuators, 230V / 24V* TWA-A * Requires TWA conversion module Dew Point Sensor CF-DS 3 1 2 3 1 2 Dew Point Sensor AMZ 112 AMZ 112 AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 33...
Page 34 Stainless steel floor heating manifold SSM-F, 2–12 groups 088U0762 Set of 2 mounting brackets 088U0585 Set of 2 ball valves 1" 088U0822 Thermal actuator TWA-A 230V NC suitable for SSM-F manifold 088H3112 Dew point sensor CF-DS 088U0251 34 | © Copyright Danfoss Climate Solutions | 2023.01 AB432956914381en-010101...
Page 36: Application 09
If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you Condensation can result in permanent damage to the floor’s construction and finish.
Page 37 AB-QM DN20 + TWA-Q 230V NC 1 set Danfoss Manifold (types FHF or BasicPlus or SSM) Thermal actuators, 230V / 24V* TWA-A Dew Point Sensor * Requires TWA conversion module Dew Point Sensor CF-DS AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 37...
Page 38 Stainless steel floor heating manifold SSM-F, 2–12 groups 088U0762 Set of 2 mounting brackets 088U0585 Set of 2 ball valves 1" 088U0822 Thermal actuator TWA-A 230V NC suitable for SSM-F manifold 088H3112 Dew point sensor CF-DS 088U0251 38 | © Copyright Danfoss Climate Solutions | 2023.01 AB432956914381en-010101...
Page 40 Condensation can result in permanent damage to the floor’s construction and finish. 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 The changeover between heating and cooling is controlled based on a reference to form on the floor.
Page 41 Dew Point Sensor CF-DS Thermal actuators, 230V / 24V* TWA-A * Requires TWA conversion module Dew Point Sensor Thermal actuators, 230V / 24V* TWA-A * Requires TWA conversion module AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 41...
Page 42 Set of 2 ball valves 1" 088U0822 Thermal actuator TWA-A 230V NC suitable for SSM-F manifold 088H3112 Dew point sensor CF-DS 088U0251 Thermal actuator TWA-A 230V NC suitable for RA-C DN20 088H3112 (x4) 42 | © Copyright Danfoss Climate Solutions | 2023.01 AB432956914381en-010101...
Page 44: Application 11
The AB-QM can also be used to set the desired maximum volumetric flow rate. If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you To prevent damage to the floor’s construction and finish, add a dew point sensor.
Page 45 (types FHF or BasicPlus or SSM) ESM-11 PT1000-sensor Dew Point Sensor CF-DS ESM-11 (PT-1000) Thermal actuators, 230V / 24V* TWA-A Reference Dew Point Sensor Thermostat * Requires TWA conversion module Circulationpump Heatexchanger AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 45...
Page 46 Heat exchanger XB06H-1-26 145H3671 Time delay for changeover to cooling mode Heating supply temperature 40.0 °C Cooling supply temperature 18.0 °C Heating safety temperature 50.0 °C Cooling safety temperature 17.0 °C 46 | © Copyright Danfoss Climate Solutions | 2023.01 AB432956914381en-010101...
Page 48: Application 12
The AB-QM can also be used to set the desired maximum volumetric flow rate. To If the bathroom has underfloor heating and has an Icon2™ room thermostat, you can prevent damage to the floor’s construction and finish, add a dew point sensor.
Page 49 (types FHF or BasicPlus or SSM) ESM-11 PT1000-sensor Dew Point Sensor CF-DS ESM-11 (PT-1000) Thermal actuators, 230V / 24V* TWA-A Reference Dew Point Sensor Thermostat * Requires TWA conversion module Circulationpump Heatexchanger AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 49...
Page 50 145H3671 Time delay for changeover to cooling mode 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 50 | © Copyright Danfoss Climate Solutions | 2023.01 AB432956914381en-010101...
Page 52: Application 13
Application description Disabling cooling (Bathroom) If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you The RELAY activates when the system is in heating mode and is used to control the 230V may want to disable cooling for this room. Cooling a bathroom will cause condensation 6-way ball valve.
Page 53 Dew Point Sensor CF-DS ESM-11 (PT-1000) Thermal actuators, 230V / 24V* TWA-A Dew Point Sensor * Requires TWA conversion module Circulationpump Heatexchanger External switch for manual changeover between heating and cooling AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 53...
Page 54 088U0251 Thermal actuator TWA-A 230V NC suitable for SSM-F manifold 088H3112 “Circulation pump Wilo Para 15-130/6” 145H4269 Heat exchanger XB06H-1-26 145H3671 Wall switch for manual changeover to cooling External supplier 54 | © Copyright Danfoss Climate Solutions | 2023.01 AB432956914381en-010101...
Page 56: Application 14
Application description Disabling cooling (Bathroom) If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you The RELAY activates when the system is in heating mode and is used to control the may want to disable cooling for this room. Cooling a bathroom will cause condensation 230V 6-way ball valve.
Page 57 Dew Point Sensor CF-DS ESM-11 (PT-1000) Thermal actuators, 230V / 24V* TWA-A Dew Point Sensor * Requires TWA conversion module Circulationpump Heatexchanger External switch for manual changeover between heating and cooling AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 57...
Page 58 088U0251 Thermal actuator TWA-A 230V NC suitable for SSM-F manifold 088H3112 “Circulation pump Wilo Para 15-130/6” 145H4269 Heat exchanger XB06H-1-26 145H3671 Wall switch for manual changeover to cooling External supplier 58 | © Copyright Danfoss Climate Solutions | 2023.01 AB432956914381en-010101...
Page 60: Application 15
Application description Disabling cooling (Bathroom) If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you This application makes it possible to send separate control signals for both heating and may want to disable cooling for this room. Cooling a bathroom will cause condensation cooling demands to a heat pump or hybrid system.
Page 61 * Requires TWA conversion module Dew Point Sensor CF-DS 24V~ External relay Hybrid gas / Heat pump External switch for manual changeover AMZ connection box Dew Point Sensor between heating and cooling Bridge AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 61...
Page 62 Thermal actuator TWA-A 230V NC suitable for SSM-F manifold 088H3112 Dew point sensor CF-DS 088U0251 External relay - AMZ connection box 082G1636 Wall switch for manual changeover to cooling External supplier 62 | © Copyright Danfoss Climate Solutions | 2023.01 AB432956914381en-010101...
Page 64: Application 16
Application description Disabling cooling (Bathroom) If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you In this application, a 230V 3-way motorized ball valve is used to change over between may want to disable cooling for this room. Cooling a bathroom will cause condensation heating and cooling modes.
Page 65 Thermal actuators, 230V / 24V* TWA-A * Requires TWA conversion module Dew Point Sensor CF-DS External switch for manual changeover 3 1 2 between heating and cooling Dew Point Sensor AMZ 113 AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 65...
Page 66 Set of 2 ball valves 1" 088U0822 Thermal actuator TWA-A 230V NC suitable for SSM-F manifold 088H3112 Dew point sensor CF-DS 088U0251 Wall switch for manual changeover to cooling External supplier 66 | © Copyright Danfoss Climate Solutions | 2023.01 AB432956914381en-010101...
Page 68: Application 17
Application description Disabling cooling (Bathroom) If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you In this application, two 2-way motorized control valves are used to change over may want to disable cooling for this room. Cooling a bathroom will cause condensation between heating and cooling modes.
Page 69 Thermal actuators, 230V / 24V* TWA-A * Requires TWA conversion module Thermal actuators, 230V / 24V* TWA-A Dew Point Sensor * Requires TWA conversion module External switch for manual changeover between heating and cooling AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 69...
Page 70 Thermal actuator TWA-A 230V NC suitable for SSM-F manifold 088H3112 Dew point sensor CF-DS 088U0251 5a/b Thermal actuator TWA-A 230V NC suitable for RA-C DN20 088H3112 (x2) Wall switch for manual changeover to cooling External supplier 70 | © Copyright Danfoss Climate Solutions | 2023.01 AB432956914381en-010101...
Page 72: Application 18
Application description Disabling cooling (Bathroom) If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you In this application, two 230V two-way motorized ball valves are used to change over may want to disable cooling for this room. Cooling a bathroom will cause condensation between heating and cooling modes.
Page 73 * Requires TWA conversion module Dew Point Sensor CF-DS 3 1 2 3 1 2 External switch for manual changeover Dew Point Sensor AMZ 112 AMZ 112 between heating and cooling AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 73...
Page 74 Set of 2 ball valves 1" 088U0822 Thermal actuator TWA-A 230V NC suitable for SSM-F manifold 088H3112 Dew point sensor CF-DS 088U0251 Wall switch for manual changeover to cooling External supplier 74 | © Copyright Danfoss Climate Solutions | 2023.01 AB432956914381en-010101...
Page 76: Application 19
Application description Disabling cooling (Bathroom) If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you In this application, a 230V 6-way motorized ball valve is used to change over between may want to disable cooling for this room. Cooling a bathroom will cause condensation heating and cooling modes.
Page 77 (types FHF or BasicPlus or SSM) Thermal actuators, 230V / 24V* TWA-A Dew Point Sensor * Requires TWA conversion module Dew Point Sensor CF-DS External switch for manual changeover between heating and cooling AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 77...
Page 78 Set of 2 ball valves 1" 088U0822 Thermal actuator TWA-A 230V NC suitable for SSM-F manifold 088H3112 Dew point sensor CF-DS 088U0251 Wall switch for manual changeover to cooling External supplier 78 | © Copyright Danfoss Climate Solutions | 2023.01 AB432956914381en-010101...
Page 80: Application 20
Application description Disabling cooling (Bathroom) If there is a bathroom with underfloor heating and an Icon2™ room thermostat, you In this application, four 2-way motorized control valves are used to change over may want to disable cooling for this room. Cooling a bathroom will cause condensation between heating and cooling modes.
Page 81 Thermal actuators, 230V / 24V* TWA-A * Requires TWA conversion module Thermal actuators, 230V / 24V* TWA-A Dew Point Sensor * Requires TWA conversion module External switch for manual changeover between heating and cooling AB432956914381en-010101 © Copyright Danfoss Climate Solutions | 2023.01 | 81...
Page 82 Thermal actuator TWA-A 230V NC suitable for SSM-F manifold 088H3112 Thermal actuator TWA-A 230V NC suitable for RA-C DN20 088H3112 (x4) Wall switch for manual changeover to cooling External supplier 82 | © Copyright Danfoss Climate Solutions | 2023.01 AB432956914381en-010101...

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