Danfoss FH-WC User 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
roomthermostats 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,
AmpthillRoad,
Bedford, MK42 9ER
Telephone: [phone] Fax: [phone]
Email: [email protected]
Website: www.danfoss-randall.co.uk
Part No: 90091 Iss: 03 05/05