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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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
Instruction FH-CWT Thermostat
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
Dimensions 86 Χ 99 Χ 29mm
Adjustment mode Dial
Fault indication/
failure mode
Frost protection Yes, put the dial to posi-
Ambient temperature - 10 °C – 60 °C
RAL 7011
If sensor failure, thermostat will turn off all output
of relays
tion (5 °C)
Produced by Danfoss Floor Heating Hydronics 05.2011
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Instruction FH-CWT Thermostat
Produced by Danfoss Floor Heating Hydronics 05.2011
Feature Description
Precision ±1.5 °C
Hysteresis 1 °C, below the setpoint
temperature
IP class 30
LCD back-/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
Power supply,
No
battery
Power supply, net 230Vac±10% 50/60Hz
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Produced by Danfoss Floor Heating Hydronics 05.2011
Instruction FH-CWT Thermostat
Feature Description
Power backup
Not applicable
settings
Sensor, floor No
Sensor, room NTC 10K accuracy: ±1%
Sensor, room
5-30 °C
- set range
Shell material/ non
94V0/ Yes
inflammable
Shell material, type ABS+PC
Static protection Yes
Programmable No
Produced by Danfoss Floor Heating Hydronics 05.2011
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Instruction FH-CWT Thermostat
Produced by Danfoss Floor Heating Hydronics 05.2011
7. Figures and Illustrations
Fig. 1
Fig. 2
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Produced by Danfoss Floor Heating Hydronics 05.2011
Instruction FH-CWT Thermostat
20
15
25
Fig. 3
Fig. 4
Produced by Danfoss Floor Heating Hydronics 05.2011
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Produced by Danfoss Floor Heating Hydronics 05.2011
Fig. 5
Fig. 6
FH-CWT
Instruction FH-CWT Thermostat
L
NO
NC
N
~230V ± 10%
50/60 Hz
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Produced by Danfoss Floor Heating Hydronics 05.2011
Instruction FH-CWT Thermostat
Produced by Danfoss Floor Heating Hydronics 05.2011
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