12
Do not connect electrical power to the unit until all electrical wiring has been completed.
Consult a qualifi ed electrician
for the electrical work.
10.
Electrical Wiring
Do not turn on the power until the electrical wiring is fi nished.
This may cause electrical shock or damage to the equipment to occur.
Caution
• The electrical supply required by the water
heater is 220 -240V AC at 50 Hz.
The power consumption may be up to 135W.
Use an appropriate circuit.
• Do not disconnect the power supply when not
in use. When the power is off, the freeze pre-
vention in the water heater will not activate,
resulting in possible freezing damage.
• Do not let the power cord contact the gas piping.
Tie the redundant power cord outside the
water heater. Putting the redundant length
of cord inside the water heater may cause
electrical interference and faulty operation.
Ground
• To prevent an electric shock, always plug pow-
er lead into an earth powerpoint.
i) "A means of disconnection from the supply mains having a contact separation in all poles must be
provided to allow for full disconnection".
ii) Under voltage Cat III conditions should be incorporated in the fi xed wiring in accordance with the wir-
ing regulations.
iii) "If the supply cord is damaged, it must be replaced by the manufacturer or its service agent".
This appliance must be electrically grounded in accordance with Electrical Authority Regulations.
External wiring must be correctly earthed, polarised and in accordance with the relevant standards.
In GB this is BS 6891.
In IE this is the current edition of I.S.813 "Domestic Gas Installations".
The boiler must be connected to a permanent 220 - 240 V ac, 50Hz supply.
Connection of the whole electrical system of the boiler, including any heating controls, to the electrical
supply must be through one common isolator and must be fused 10 Amp maximum.
Isolation should be by a double pole switched fused spur box, with a minimum gap of 3 mm for both
poles. The fused spur box should be readily accessible and preferably adjacent to the appliance. It
should be identifi ed as to its use.
Caution:
Label all wires prior to disconnection when servicing controls. Wiring errors can cause improp-
er and dangerous operation.
Verify proper operation after servicing.
Field wiring to be performed at time of appliance installation.
THE APPLIANCE MUST BE EARTHED
