FH-WT 24

Standard dial thermostat

FH-WC 24 - 10 zone wiring centre

• Incorporates separate boiler and pump interlocks

FH-WP 24

Tamperproof thermostat

• Convenient and easy to wire floor heating connection box

Hard-wired Systems Wiring Box - FH-WC 24

Code No

Number of zones

(thermostats in/thermal actuator zones out)

Pump and boiler relay

Supply voltage

(1)

088H001701

10

Max load 230 VAC (2A)

207-253 Vac, ±15%, 50/60 Hz

Output voltage

(to zone thermostats and thermal actuators)

Max load per output

Ambient temperature

24 Vac

3 W (only 1 actuator per output)

0 - 50°C

Dimensions (mm) 314 wide x 110 high x 81 deep

Notes:

(1) Boiler and pump relays are activated whenever one or more zone thermostats call for heat.

Wired Controls, 24V Output

FH-WT, Dial setting room thermostat with setback

FH-WP, Tamperproof room thermostat

FH-WS, Dial setting room thermostat for floor sensor

Floor sensor, use with FH-WS

Single zone central time control TS715 Si

Hard Wired Controls - 24V Output

FH-WC 24

FH-WS 24

Dial thermostat for floor sensor

Code No.

088H002200

088H002300

088H002400

088H002500

087N789900

The central component in the FH-WC

24 hard wired control range is the wiring centre ideal for use in water based floor heating systems.

The wiring centre can be connected to 24 volt thermal actuators mounted on the underfloor heating distribution manifold. The centre can control up to ten zones. The unit is directly powered by standard 230 VAC/50 Hz without the need for an external transformer.

FH-WC 24 has two potential-free relays for control of a circulation pump and a boiler. The relays are activated when one or more room thermostats call for heat.

FH-WT 24 dial setting room thermostat used for single room temperature control and temperature setting can be maximum and/or minimum limited.

A LED light behind the front cover indicates heat demand.

FH-WS 24 has overall the same functionality as the FH-WT 24 but can be used if direct control of the floor temperature is needed as an optional floor sensor can be connected to the thermostat. Additionally the room thermostat has a manually operated night setback feature.

FH-WP 24 is a tamperproof model of the FH-WS 24 ideal for use in public buildings e.g. schools.

Time control option:

TS715Si, a single zone timeswitch, turns off the whole underfloor system at programmed times. If this system is adopted, room temperature control is achieved using above mentioned room thermostats.

Additional Information:

Wiring Information p. 73-74

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