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6 how it works Kelvinator gas continuous flow hot water systems
When a hot water tap is turned on, cold water begins flowing
through the gas continuous flow hot water system and out
of the hot water tap. A flow sensor inside the water heater
detects that there is water flow and the computer opens the
internal gas supply valve, ignites the burner and starts the
internal fan. The water circulating inside the water heater
goes through a heat exchanger that absorbs the heat created
by the flames of the burner and transfers the heat into the
water circulating through it. The internal computer modulates
the gas supply valve and the water flow to produce the right
amount of hot water to the correct temperature. When the
hot water tap is turned off, the unit detects that the water
flow has stopped and closes the gas supply valve, stopping
the burner. The internal fan continues to run for a little while
longer and then shuts down.
Your gas continuous flow hot water system may be installed
on its own or part of a gas boosted solar hot water system.
Turning on your gas continuous ow hot water system
If your gas continuous flow hot water system has been turned
off after commissioning or shut down for a period of time
follow these instructions:
• If the system has been drained, ensure that the drain plugs
have been screwed back in place (hand tighten only)
• Open any hot tap or xture in the house
• Open the cold water isolation valve located on the inlet to
the water heater
• Once water is owing freely from the open hot tap or
fixture, indicating that all air has been dispelled from the
system, close the open hot water tap or fixture
• Open the gas isolation valve located on the inlet to the
water heater
• Plug in the power cord to the power outlet (if it isn’t
already) and turn on the power supply to the outlet.
• Turn on the remote controller (if tted) by pressing the
ON/OFF button and press the PRIORITY button
Your gas continuous flow hot water system is now ready to be
used and will operate automatically when a hot tap or fixture
is opened.
Turning off your gas continuous ow hot water system
If you wish to turn off your gas continuous flow hot water
system follow these instructions:
• Turn off the remote controller (if tted) by pressing the
ON/OFF button
• Switch off electrical supply at the power outlet that the
water heater is plugged into
• Close the gas isolation valve located on the inlet to the
water heater
• Close the cold water isolation valve located on the inlet to
the water heater
Note: If there is a risk of freezing conditions, do not switch off
power to the water heater unless it is drained of water first.
Please see the section on freeze prevention on page 9 of this
manual for more information.
Your gas continuous flow hot water
system – how it works
Exhaust
Burner
Fan
Computer
Board
AC240V
gas
cold water inlethot water outlet
thermistors
flow sensor
gas
valve
heat
exchanger
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