Danfoss FH-WS Gegevensblad

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Data sheet

Application:

Ordering

Information:

Accessories:

Technical Specifications:

Temperature Limitation:

FH-WS

Electronic Room Thermostat

Code No.

Description

088H0024

FH-WS

Electronic

088H0034

Thermostat

Code No.

Optional floor sensor for FH-WS thermostat. Sensor provides minimum or

088H0025

Power Supply

Mounting

Wiring Requirements

Temperature Range

Temperature Differential

Ambient Temperature

Freeze Protection

Min. / Max. Floor Setting

Night Setback

Sensor FH-WS

*The floor sensor can be extended to a maximum length of 33 ft. A wire size of 18-gauge should be used as an extension to the

floor sensor.

Blue

VDSGA122 © Danfoss 03/10

The Danfoss FH-WS is a hard wired low voltage

electronic thermostat used with hydronic

heating systems. FH-WS is typically used to

control the operation of electrical zone valve

actuators in hydronic heating systems. The

thermostat senses air temperature and with

the addition of the optional floor sensor, it

is capable of floor temperature limitation.

Beneath the front cover flap is a LED that

illuminates when there is a heat demand.

Limitation tabs are built-in to allow the setting

of the minimum and maximum air temperature.

The thermostat provides a cost effective and

efficient means of controlling comfort within a

heated room.

Power

Scale

°C

24 VAC,

50-60Hz

°F

Description

maximum regulation of floor temperature

24 VAC (50-60Hz)

Surface mounted

3-wire, 4-wire if optional timer is used

50° - 86°F (6° - 30°C)

± 1.75°F

32° - 122° (0° - 50°C)

40°F (4°C)

68° - 113°F (20° - 45°C)

Manual, (Automatic is possible with external timer -

not supplied)

NTC, 30 ohms 68°F (20°C), with 10 ft (3m) cable*

The setting range for the thermostat can be

limited by means of the blue and red limitation

rings located beneath the front cover. By setting

them the temperature range is reduced. The

settable limitation range is 50° - 86°F (6° -30°C).

Red

Temperature

Floor Sensor

Range

6° - 30°C

Optional

50° - 86°F