Danfoss FH-CWT User manual

Instruction
FH-CWT Thermostat

Produced by Danfoss Floor Heating Hydronics 05.2011

3
VI.CU.A2.2D
Produced by Danfoss Floor Heating Hydronics 05.2011
Instruction FH-CWT Thermostat
Instruction FH-CWT Thermostat 5
Инструкция для термостата FH-CWT 11
FH-CWT-Thermostat - Gebrauchsanweisung 19
Instructions thermostat FH-CWT 27
FH-CWT 温控器使用说明 33

4VI.CU.A2.2D Produced by Danfoss Floor Heating Hydronics 05.2011
Instruction FH-CWT Thermostat
Produced by Danfoss Floor Heating Hydronics 05.2011

Produced by Danfoss Floor Heating Hydronics 05.2011
5
VI.CU.A2.2D
Produced by Danfoss Floor Heating Hydronics 05.2011
Instruction FH-CWT Thermostat
1. Functional Overview . . . . . . . . . . . . . . . . . . . . . . . 6
2. Mounting.................................. 6
3. Installation................................. 6
4. General usage ............................. 7
5. Frost Protection Mode. . . . . . . . . . . . . . . . . . . . . . 8
6. Technical Specifications . . . . . . . . . . . . . . . . . . . . 9
7. Figures and illustrations . . . . . . . . . . . . . . . . . . . . 39
Index
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.

6VI.CU.A2.2D Produced by Danfoss Floor Heating Hydronics 05.2011
Instruction FH-CWT Thermostat
Produced by Danfoss Floor Heating Hydronics 05.2011
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.
• Connect the thermostat correctly in accordance
with the Wiring Diagram.

Produced by Danfoss Floor Heating Hydronics 05.2011
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VI.CU.A2.2D
Produced by Danfoss Floor Heating Hydronics 05.2011
Instruction FH-CWT Thermostat
• 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 tempera-
ture according to the scale - Fig. 3.

8VI.CU.A2.2D Produced by Danfoss Floor Heating Hydronics 05.2011
Instruction FH-CWT Thermostat
Produced by Danfoss Floor Heating Hydronics 05.2011
5. Frost Protection Mode
Set the thermostat to Frost Protection Mode by
turning the knob to the position on the scale -
Fig. 3 .
• When the room temperature drops below 5 °C
the heating will be turned ON.
• When the room temperature raises above 6 °C
the heating will be turned OFF.
6. Technical Specifications
Feature Description
Approval CE Marking, EN 60730
Colour White RAL 9016/ Grey
RAL 7011
Dimensions 86 Χ 99 Χ 29mm
Adjustment mode Dial
Fault indication/
failure mode
If sensor failure, ther-
mostat will turn off all
output of relays
Frost protection Yes, put the dial to posi-
tion (5 °C)
Ambient temperature - 10 °C – 60 °C

Produced by Danfoss Floor Heating Hydronics 05.2011
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VI.CU.A2.2D
Produced by Danfoss Floor Heating Hydronics 05.2011
Instruction FH-CWT Thermostat
Feature Description
Precision ±1.5 °C
Hysteresis 1 °C, below the setpoint
temperature
IP class 30
LCD backlight/
nightlight
No
LCD display No
LED indicator Green light: Thermostat
ON and no heat demand
Red light: Thermostat ON
and heat demand
Max. load, inductive <1A
Max. load, resistive <3A
Mounting Wall mounting
Network, wire No
Network, wireless No
Off-set function No
Power consumption 7 W

10 VI.CU.A2.2D Produced by Danfoss Floor Heating Hydronics 05.2011
Instruction FH-CWT Thermostat
Feature Description
Power supply,
battery
No
Power supply, net 230Vac±10% 50/60Hz
Power backup
settings
Not applicable
Sensor, floor No
Sensor, room NTC 10K accuracy: ±1%
Sensor, room
- set range
5-30 °C
Shell material/ non
inflammable
94V0/ Yes
Shell material, type ABS+PC
Static protection Yes
Programmable No