18
INSTALLATION
WIRING INSTRUCTIONS
All electrical work must be carried out in accordance with current IEE wiring regulations.
Before commencing installation check power supply to property to ensure that there is enough current and voltage available
for size of boiler fitted. Consider requirements of other electrical appliances. The boiler must be connected to the mains
supply by means of a double pole linked switch with 3mm contact gap in both poles.
IMPORTANT:
After completing electrical installation work preliminary safety checks should be carried out as described in BS 7671:2001
NOTE:
RCD unit can be used as the isolating switch if mounted close enough to the boiler.
Miniature circuit breakers MCB’s
MUST
be fitted between RCD unit and boiler and RCD and any external controls. Refer to
technical specification. For MCB ratings refer to wiring diagram.
It is important the correct size MCB is used in the supply from the RCD to the boiler.
ELECTRICAL CONNECTIONS
WARNING: THIS APPLIANCE MUST BE EARTHED.
The boiler is supplied with a 3-core flexible cable which should be connected to a suitable isolator capable of handling the rated
current input of the boiler. See boiler data label or technical details chart for more information.
IMPORTANT: CORRECT POLARITY MUST BE OBSERVED WHEN BRINGING THE MAINS SUPPLY INTO THE BOILER
External Controls
Control wiring is volt free, do not apply 230v. This will invalidate the warranty.
THP1002 Series Wi-Fi Thermostat
The combination boiler is supplied with a Wi-Fi wall mounted thermostat which allows the end user to control the heating from
a smart phone or tablet.
The thermostat requires a 230V supply connected to 3 (N) and 4 (L) and communicates with the boiler via a twin core cable.
Connect the twin core cable from the boiler to terminals 1 & 2
For further information on installing and using the thermostat please refer to the separate installation manual supplied with the
thermostat.
Alternatively, any programable room thermostat capable of
volt free
switching can be used.
Once a call from the external thermostat is received by the boiler,
TC
will illuminate on the display and the heating symbol will
flash on the boiler display.
Summary of Contents for Aztec Classic WM Maxi Combi
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