Danfoss RET230 Electronic Heat Cool Thermostat Instruction Manual
RET 230 HCW-3
Electronic Heat / Cool thermostat with
auto-changeover based on water temperature
Installation Instructions
User Instructions
Installatie handleiding
Instructiesevoor Gebruik
NL
GB
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Instructions d’installation
Instructions d’utilisateur
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GR
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Anweisungen für Installati
Benutzeranweisen
Instrukcja instalacji
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Instrukcja Użytkownika
Instrucciones de instalación
Instrucciones del usuario
Montavimo instrukcijos
Informacija Vartotojui
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Instruktions vejledning
Brugervejleding
Istruzioni per l’uso
Istruzioni per l’utente
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| General | Details |
|---|---|
| Name | Danfoss RET230 Electronic Heat Cool Thermostat Instruction Manual |
| Make | Danfoss |
| Language | English |
| Filetype | PDF (Download) |
| File size | 0.66 MB |

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Danfoss RET230 Manual: Questions and Answers
Can the Danfoss RET230 work with a 2-pipe fan coil system?
Yes. The thermostat is specifically designed for 2-pipe fan coil systems served by a central changeover system. It controls a motorized valve and automatically switches between heating and cooling based on flow pipe temperature. Instruction Manual, p. 4
What do the LED lights mean on a Danfoss RET230 thermostat?
Green LED indicates power. Orange LED shows the fan is running. Green LED during heating or cooling signals active demand.
| LED color | Meaning |
|---|---|
| Green (steady) | Thermostat is powered |
| Orange | Fan is running |
| Green (during heating/cooling) | Heating or cooling demand active |
































































































