andrews R18 Series, Technical Documentation Manual

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18IP22B
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7.5 Start-up Ensure that gas and electric supplies are connected.
7.6 Shut-down A To turn off for short periods switch water heater off by using
7.7 Warnings Non operation of water heater during the winter time can cause
Start sequence:
A Turn manual gas cock open.
B Turn the pumps on.
C Ensure that all hot water outlets are closed.
D Turn the supply voltage to the water heater on and turn the
water heater on using the power switch 1.
E In case of failure, observe type of failure, take necessary
steps to rectify, refer to section 7.8 for details.
F Set temperature regulator as required.
the power switch 1.
B For long periods switch the pump off and after 6 minutes
close the main gas cock and main electrical supply.
freezing. By draining the water out of the heat exchanger, using
the drain taps mounted on the under-side of the flow and return
header manifold, damage to water heater will then be avoided.
WARNING
In case of failure obtain assistance from a qualified CORGI
gas/heating engineer. Don't repair yourself.