SIEMENS RDF660MB Flush Mount Room Thermostat Instruction Manual

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Mounting Instructions  

Flush-mounted room thermostat  

RDF660MB..  

Dimensions (mm)  

with RS485 Modbus  

communications  

Installation video  

Datasheet  

Mounting location  

Factory setting  

Mounting  

RDF660MB  

X1 3 = Window contact (DI)  

X2 1 = External temperature sensor (AI)  

RDF660MB/MM  

Carefully read all wiring diagrams  

prior to installation to avoid  

damage to the device caused by  

incorrect wiring of high or low  

voltages.  

B1 9 = H/C changeover (DI)  

S1 3 = Window contact (DI)  

Wiring diagrams  

Application  

Dismounting  

Key  

N1  

M1  

RDF660MB/MM, RDF660MB  

ECM fan  

V1, V2 Valve  

C1, C2 Compressor  

S2  

B2  

E1  

Operating mode switch-over  

contact (e.g. key card)  

External room / return air  

temperature sensor  

Electrical heater  

No function  

DIP  

switches  

Siemens Smart Infrastructure  

A6V12060783_en--_c  

A5W00123793A_AC  

2022-11-24  

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General	Details
Name	SIEMENS RDF660MB Flush Mount Room Thermostat Instruction Manual
Make	SIEMENS
Language	English
Filetype	PDF (Download)
File size	1.04 MB

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• ALL THERMOSTAT INSTRUCTIONS & USER MANUALS
• SIEMENS

SIEMENS RDF660MB Flush Mount Room Thermostat Instruction Manual Overview

Summary of Contents

• Page 1: Mounting instructions for the flush-mounted room thermostat RDF660MB. Dimensions are provided in millimeters. The device supports RS485 Modbus communications. An installation video and datasheet are available. Proper mounting location is crucial for optimal performance. Carefully read all wiring diagrams prior to installation to avoid damage. Wiring diagrams include connections for window contact, external temperature sensor, and H/C changeover. Dismounting instructions are included. The document outlines various components such as ECM fan, valve, and compressor. DIP switches are mentioned for configuration.
• Page 2: Operating instructions Protection mode Comfort mode Economy mode Cooling demand/mode Heating demand/mode Key lock Reminder to clean filters and for external faults Change room temperature setpoint Change from heating to cooling mode