10
INSTALLATION INSTRUCTIONS
GAS CONNECTION
ELECTRICAL CONNECTION
Fit a union to the water heater gas inlet for easy connection and removal. The thread diameter is R3/4”
(20mm).
THIS DOES NOT INDICATE THE SIZE OF THE GAS SUPPLY refer to AS/NZS 5601 for guidance on pipe
sizing.
Fit an approved isolating gas valve in the supply line adjacent to the water heater gas connection.
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regulator of 4KG per hour capacity.
Before connecting the appliance to the gas service, purge any debris or air from the gas service. Venting of
purged gas shall be in an area free of sources of ignition.
Close the isolating gas valve prior to connection of the appliance.
After connection, check all joints for leaks with an approved leak tester.
Refer to AS/NZS 5601 Installation Code for pipe sizing details.
The Thermann 16/20/26 requires a minimum of 125/158/200 MJ/h respectively.
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must consider the gas input to this appliance as well as all the other gas appliances in the premises.
Service calls are chargeable for units installed with incorrect pipe sizes.
1. The appliance is equipped with a three pinned earthed plug to be connected to a 240V 50Hz power
supply. The electrical rating of the appliance is 0.39/0.45/0.46Amp. for the Thermann 16/20/26
respectively.
2. The appliance requires a 240V 50Hz weatherproof power outlet installed in a protected position adjacent
to the appliance.
3. IMPORTANT: The appliance should always be disconnected from the power supply before any
maintenance is carried out.
TESTING THE WATER HEATER AFTER INSTALLATION IS COMPLETED.
Turn on power supply to the heater and allow approximately 30 seconds for the computer to perform a
safety check. Open a hot water tap and check the temperature of the hot water supplied. The burners
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IF THE UNIT FAILS TO OPERATE, CONSULT THE FAULT MONITOR (LAST PAGE).
Danger
In the case that the water piping is accidentally connected to gas connection port, all parts of gas circuit
must be replaced.
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