Danfoss 088H012800 Installation Instructions Manual

1

Specification FH-WC

Code number 088H012800
Hard-wired control box for
underfloor heating

●

Number of zone outputs for
thermal actuators

8

Maximum number of actuator
per zone

2

Zone outputs - voltage 230 Vac, 50 Hz
Zone outputs (2) ­max rating

3W

Night set-back channels (1) 2
Voltage free relay output for
interlocks

2 x SPST

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
(2) Maximum 2 actuators per zone

FH-WC Hardwired Underfloor Heating Connection Box

Installation Instructions

System Schematic

Mounting

Mains in

Interlock

Interlock

ROOM THERMOSTATS

FH-WC WIRING BOX

MANIFOLD

THERMAL
ACTUATORS

Zone 1

Zone 2

Zone 3

Cable Access: Thermostats, Interlock and Mains

FH-WC Hard Wired Box

Cable Access: Thermal Actuators

2

Wiring Connections

System 1: basic system without time control

System 2: system with programmable
room thermostats

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

Replacing Wiring Box Cover

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

Part No: 90091 Iss: 03 05/05