Danfoss FH-CWT Installation guide

Instruction
FH-CWT Thermostat

Instruction FH-CWT Thermostat

Produced by Danfoss Floor Heating Hydronics 05.2011

Index

1. Functional Overview . . . . . . . . . . . . . . . . . . . . . . . . 3

2. Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

3. Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

4. General usage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

5. Frost Protection Mode. . . . . . . . . . . . . . . . . . . . . . . 5

6. Technical Specifications . . . . . . . . . . . . . . . . . . . . . 6

7. Figures and illustrations . . . . . . . . . . . . . . . . . . . . . 8

IMPORTANT!
Protect the thermostat from dirt, fluids, concrete and do NOT
insert any objects into it.
Do not cover the thermostat, for instance by hanging towels
directly in front of it.
Installation must be done by an authorized electrician.

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Produced by Danfoss Floor Heating Hydronics 05.2011

Instruction FH-CWT Thermostat

1. Functional Overview

Front - fig. 1

 Dial knob.
 Red/Green LED (behind the cover).

LED modes

• Green light ON - Thermostat is ON but not heating.

• Red light ON - Thermostat is ON and heating.

Back - fig. 2

 Screw hole for wall mounting.
 Terminals for cable mounting.

2. Mounting

Placing the Room Thermostat - fig. 4 

! Wherever possible, the room thermostat should be
installed where the effects of sunlight, draught, or
other heaters (eg. TV’s), etc. are avoided.

3. Installation

Installing the Room Thermostat - fig. 5 and fig.6

• Carefully remove the back plate. Do NOT enter any
objects deeply into the thermostat.

• Mount the back plate to the wall box using the
enclosed screws.

Produced by Danfoss Floor Heating Hydronics 05.2011

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3

Instruction FH-CWT Thermostat

Produced by Danfoss Floor Heating Hydronics 05.2011

• Connect the thermostat correctly in accordance
with the Wiring Diagram.

• Mount the cover to the back plate, and finally
mount the dial knob.

Wiring Diagram

The product must be connected to the following
leads:

• Terminal L: Phase (L) 230 V ± 10%, 50/60 Hz

• Terminal NO: Valve (NO)

• Terminal NC: Valve (NC)

• Terminal N: Neutral (N)

•

4. General usage

Turning the Room Thermostat ON/OFF

• Turn the thermostat OFF by turning the knob
counterclockwise to • on the scale - Fig. 3 .

• Turn the thermostat ON by turning the knob
clockwise to your desired temperature.

Setting the Room Temperature

• Turn the knob to set the desired room tempera­ture according to the scale - Fig. 3.

•

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Produced by Danfoss Floor Heating Hydronics 05.2011