Electrical Supply - andrews CSC39 Installation Manual, Operation & Service Manual

SECTION 3
ELECTRICAL
SUPPLY
Fig 3.
Wiring diagram for
natural gas appliance
and LPG appliance.
10
INSTALLATION
External wiring to the water heater(s) must be installed in accordance with current I.E.E.
Regulations for the wiring of buildings and to any Local Regulations that may apply.
The Auto Ignition Heater is designed to operate from a 220/240V, 1Phase supply.
The fuse rating is 5 amps.
The method of connection to the mains electricity supply should facilitate complete
Electrical isolation of the appliance, preferably by use of a fused double pole switch or
fused spur box serving only the heater. The disconnection of the supply shall have a
contact separation of 3mm in all poles.
The point of connection to the mains electricity supply should be readily accessible and
adjacent to the appliance.
Connect the electrical supply the main control panel terminal block via the cable glands in
the base of the control panel. Mains input cable should be 0.75mm
be connected to the mains supply as detailed above.
It is recommended that screen cable is used where the volt-free contacts are to be
connected from an external supply. This will eliminate the risk of possible interference
from nearby high voltage cables.
Mains Voltage: 220/240Volts - IP 20
50Hz
Frequency:
5 Amps
Fuse:
1.4 Amps
Fan Motor:
2 , 3 core, and should