Owner's Guide
26
Part: XXXXX Rev XX
The water is cold when only a
single fixture is open.
• The unit will not heat the water if the flow rate is less than
2.5 litre per minute.
Open the fixture more or open other fixtures so that a greater
flow passes through the unit, and the unit should begin
heating again.
Fluctuations in hot water
temperatures.
• Set water temperature at 48˚C to 50˚C. This will allow you
to use a higher flow of hot water thus meeting the minimum
flow requirement of 2.5 L/min.
• Clean the inlet water filter of any debris (
p.24)
The amount of hot water at a
certain fixture is not constant.
• When hot water is demanded at other fixtures, the amount
available may be reduced. The maximum flow available from a
26 litre model is 26L/min., from a 21 litre model is 21 L /min.,
from a 17 litre model is 17 L /min. at a 25˚C temperature rise.
• Pressure fluctuations and other plumbing conditions can
cause the temperature and pressure at a fixture to be
unstable, but it should stabilize after a short time.
• There are some types of hot water taps that discharges large
volumes of hot water at first but stabilize after time.
• To keep the temperature stable, the heater limits the
amount of water that can flow through it to a small amount
initially, but the amount increases over time.
The amount of hot water in the bath
is less/more than the set amount.
• When hot water is used for other fixtures while filling the
bath, the bath will not fill as much.
• If there is water in the bath already, or when filling is
stopped and restarted, the bath will fill more.
The bath fill alarm does not
sound even when filled to the set
amount.
• The bath fill alarm is set to sound when hot water
is continuously discharged for the set volume of water.
If mixing valves are used, or if cold water is mixed with hot
water at the fixture, the bath will fill more than the setting
of the bath fill function.
Amount of hot water available
has decreased over time.
• Is the inlet water filter clogged? (
p.24)
The fan can be heard after
operation is stopped.
A motor can be heard when turning
the unit On or Off, when opening
or closing a fixture, or after the unit
has been running for a while.
• These noises indicate the proper operation of devices
which are designed to let the unit reignite more quickly,
and ensure the water temperature is stable.
(Continued)
Amount of Hot Water
Sounds
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