Danfoss FH-CWT User manual

Instruction

FH-CWT Thermostat

Produced by Danfoss Floor Heating Hydronics 05.2011

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

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

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

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

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

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

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