Ambirad VISION COMPACT VC20 Kullanım, Bakım ve Servis Kılavuzu - Sayfa 5

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4 Electrical connection

This appliance must be earthed.

Supply 230V 50Hz single phase.

Current rating 0.55 amp max (inductive).

Fuse: external 3 amp.

All electrical work should be carried out to

IEE standards by a competent electrician.

The electrical connection to the heater is

made by means of a three pin plug-in

power connector. Live, neutral and earth

connections should be made via a flexible

supply cable to the power connector and

routed clear of the heater or tubes. The

flexible supply cables should be of 0.5mm

complying with BS 6500:1990.

Wiring

The wires in the mains lead are coloured in

accordance with the following code:

Green & Yellow Earth

Blue

Neutral

Brown

Live

Instructions for connecting mains lead to

plug:

Connect green and yellow to plug terminal

marked E. Connect blue wire to terminal

marked N. Connect brown wire to terminal

marked L.

It is recommended the electrical circuit

controlling the heater or group of heaters

incorporates thermostats, a time switch and

if required manual control switches and a

frost thermostat.

Circuits and controls

All such controls and switchgear must be

rated to handle the total inductive load of

the circuit they control. Load per Ambi-Rad

heater is 0.55 amp. For large installations,

the use of relays and contactors should be

considered. The method of connection to

the electrical supply must facilitate

complete isolation and should be made via

fused double pole isolator having a contact

separation of at least 3mm in all poles and

supplying the appliance only.

Figure 2 Typical external wiring

Note For more comprehensive control arrangements see black bulb and control panel

leaflets

Figure 3 Internal wiring diagram

GREY

FLAME SENSOR

IGNITER

RESISTOR

Alternatively, connection may be made via a

fused three pin plug and un-switched

shuttered socket, both complying with the

requirements of BS 1361:1971 (1986).

Ensure that a copy of the lighting

instructions plate is affixed adjacent to the

electricity supply switch. Should this switch

serve more than one heater it is only

necessary to affix one copy per service.

Thermostats and other controls

For details on the use and siting of

thermostats (if used) refer to Ambi-Rad

leaflets Doc Ref GB/CON/002/0902.

YELLOW

WHITE

GREY

RED

BLUE

BROWN

GREEN/YELLOW

BLUE

GREEN/YELLOW