REGULATION INSTRUCTIONS
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3.8 Electrical connections
3.8.1 General warnings
Follow the electrical code requirements of the local authority having jurisdiction. In the absence of such
requirements, follow the latest edition of the National Electrical Code (NFPA 70) in the U.S. or the latest edition of
CGA C22.1 Canadian Electrical Code – Part 1 in Canada.
3.8.2 Electric Wiring: Ground and Surges
All units come with factory installed 3-pronged (grounded) plug end. The combination water heater can be
plugged into any standard electrical duplex outlet close to the unit as it requires only 4 Amps.
If the local jurisdiction requires the unit to be wired directly, remove and discard the factory installed plug. An
ON/OFF switch controlling the main power between the breaker and the FLOWMAX Water Heater should be
provided to facilitate end-user maintenance and servicing. This should be done by a qualified electrician.
The combination water heater must be electrically grounded. Ensure the electrical receptacle, in which the water
heater will be plugged into, is properly grounded; if wiring directly, do not attach the ground wire to either the gas
or the water piping as plastic pipe or dielectric unions may isolate the water heater electrically.
The use of a surge protector is recommended to protect from power surges.
Do not energize electric power to the unit until all plumbing and gas piping is complete and the combination water
heater has been filled with water.
The electrical supply required by the water heater is 120VAC at 60Hz with a maximum 4A rating with proper
grounding.
DO NOT connect 220-240VAC and any other voltage to this FLOWMAX Combination Water Heater. This will
damage the combination water heater and void the warranty.
Do not disconnect the power supply when the unit is in normal operation.
If there is a power failure in cold weather areas, the freeze prevention system in the water heater will not operate
and may result in freezing of the heat exchanger; in cold weather areas where power failures are common, you
must completely drain the unit to prevent damage if the power will be off for any extended period of time.
Damage caused by freezing is not covered under warranty.
CAUTION : Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after servicing.
The connection to the main power supply must be carried out by professionally qualified electrical personnel,
registered in accordance with current legislation and local authorities.
Always check to make sure that the appliance has an efficient ground system. This requirement is only satisfied if
it has been properly connected to an efficient ground system installed in accordance with the requirements of
current safety standards and carried out by professionally qualified personnel.
This basic safety measure must be checked, verified and carried out by professionally qualified personnel.
Have the electrical system checked by a qualified electrician. The manufacturer will not be held liable for any
damage or injury caused as a result of an inefficient or faulty ground system.
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