Danfoss FH-WC 24V Installation guide

FH-WC 24V Hardwired Underfloor Heating Connection Box

Installation Instructions

Specification FH-WC

Code number 088H0131
Hard-wired control box for
underfloor heating
Number of zone outputs for
thermal actuators
Maximum number of actuator
per zone
Zone outputs - voltage 24Vac
Zone outputs­max rating
Night set-back channels (1) 2
Voltage free relay output for
interlocks
Voltage rating of interlock relay 230 Vac, 50 Hz
Current rating of interlock relay 2 Amps, inductive
Power supply 230 Vac, 50 Hz
Max ambient temperature 50°C
Dimensions, mm 314w x 110h x 61d
(1) Night set-back requires separate time control

●

10

1

3W

2 x SPST

FH-WC Hard Wired Box

Mounting

Cable Access: Thermostats, Interlock and Mains

System Schematic

ROOM THERMOSTATS

THERMAL
ACTUATORS

Zone 1

Zone 2

Zone 3

Cable Access: Thermal Actuators

FH-WC WIRING BOX

Mains in

Interlock

Interlock

MANIFOLD

1

Wiring Connections

System 1: basic system without time control

System 2: system with programmable
room thermostats

TP5000

Zone 1 of FH-WC
(repeated for other zones)

Replacing Wiring Box Cover

System 3: system with 2 channel centralised
night set-back

RET24NSB

Zone 1 of FH-WC
(repeated for other zones)

Danfoss Randall can accept no responsibilty for possible errors in catalogues, brochures and other printed material. Danfoss Randall reserves the right to alter its products
without notice. This also applies to products already on order provided that such alterations can be made without subsequent changes being necessary in specifications
already agreed.

Danfoss Randall Limited,

Ampthill Road,
Bedford, MK42 9ER
Telephone: [phone] Fax: [phone]
Email: [e-mail]
Website: www.danfoss-randall.co.uk

2

Part No: 90086 Iss: 01 06/05