Freeze Protection And Winterizing - Rinnai V Model Series Installation And Operation Manual

Clean the water filter
Clean the inlet water filter by closing the cold and hot
water inlet isolation (shut-off) valves. Put a bucket
under the filter at the bottom of the water heater to
catch any water that is contained inside the unit.
Unscrew the water filter. Rinse the filter to remove
any debris. Install the filter and open the isolation
valves.
WARNING / AVERTISSEMENT
Testing the pressure relief valve should only be
performed by a licensed professional. Water
discharged from the pressure relief valve could cause
severe burns instantly or death from scalds.
Pressure Relief Valve:
Operate the valve manually once a year. In doing so,
it will be necessary to take precautions with regard to
the discharge of potentially scalding hot water under
pressure. Ensure discharge has a place to flow.
Contact with your body or other property may cause
damage or harm.
Visual Inspection of Flame
Verify proper operation after servicing. The burner
must flame evenly over the entire surface when
operating correctly. The flame must burn with a clear,
blue, stable flame. See the parts breakdown of the
burner for the location of the view ports. The flame
pattern should be as shown in the figures below.
Freeze Protection
Make sure that in case of freezing weather that the
water heater and its water lines are adequately
30
protected to prevent freezing. Damage due to
freezing is not covered by the warranty. Refer to the
section on Freeze Protection.
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Drain down solenoid valves be purchased and
installed that will automatically drain the unit if
power is lost. These are available in a kit,
104000059. (The condensate trap is not affected
by the auto drain down solenoid valves and will
have to be manually drained.)
Winterizing
These recommendations are intended to suggest
practices which are effective for winterizing the water
heater. They should be used as a guide only. No
liability is assumed for any issues resulting from the
use of this information.
GAS
Shut off the gas to the water heater. It is generally
preferable to shut off the gas service to the entire
location if gas is not going to be used.
WATER
Shut off the cold water supply to the water heater. It
is generally preferable to shut off the water to the
entire location if water is not going to be used.
Drain the water heater by opening the drain valves on
the cold water line and hot water line.
Open several hot water taps and remove the filter
assembly at the water inlet in order to allow room for
expansion in case there is water in the lines that
freeze.
ELECTRIC
Disconnect the power supply by either unplugging the
electrical cord or by turning off the circuit breaker to
the water heater to prevent potential damage from
irregular power surges or interruptions.
AIR INLET AND EXHAUST
Place a cover over the front panel (air inlet and
exhaust). The cover should be easy to apply and
remove. This will prevent debris, leaves, and small
animals from entering the water heater which could
cause air flow issues upon return to service.
V53De Manual