Rinnai Enviroflo EHPA250VM Operation & Installation Manual page 10

SAVE A SERVICE CALL
HIGH ELECTRICITY BILLS
Excessive hot water
consumption
HighElectricityTariffs
Higher Element Usage
WATER FLOW FLUCTUATIONS
One or more hot taps opened
at the same time
WATER HAMMER
Hot and cold water plumbing in
the premises
HEAT PUMP ICES UP
Defrosting function
Rinnai
See entry under the heading 'Insufficient or no hot water'
The electricity tariff will determine the running costs of the system. It is
important the end user is aware of the applicable tariffs. Contact your
electricity supplier to confirm what these tariffs are.
In extremely cold conditions the element may be operating more than
normal.
More than one or two hot taps in use at the same time may cause a
decrease in the hot water flow from the taps.
Is there more than one or two hot taps open, or are appliances such as a
dishwasher or washing machine, in use at the same time?
Ensure only one or two hot taps are on at one time.
Have a plumber check clipping of hot and cold water pipe work and install
a pressure limiting valve and water hammer arrestor as required.
The heat pump has a built in hot by pass defrosting function which may
operate and remove any ice.
10 EHPA Heat Pump OIM