Maintenance And Servicing - Rinnai HJ Cooper Owner's Manual

Maintenance and servicing

Hot water systems, like cars, require regular maintenance and servicing. To ensure
longevity of your cylinder we recommend the following.
Period What needs to be done
Every six months TPR (temperature & pressure relief) valve—operate the easing gear
Year five Inspection and service of the entire hot water system, including the element*
Every 24 months Inspection and service of the entire hot water system, including the element*
after year five
* In hard water areas the element(s) must be periodically descaled. To do this the unit must be drained and the element(s)
removed.
TPR valve
This valve is located near the
top of the cylinder and is
essential for safe operation.
The TPR valve works by
automatically venting hot water
if the temperature or pressure
of the water in the cylinder gets
too high.
Every six months operate the
easing gear to remove lime
deposits and to check that
it is not blocked. As this will
discharge hot water, ensure no
one is near the drain line.
Failure to operate the
relief valve easing gear
IMPORTANT
at least once every six
months may result in the
water heater exploding.
Continuous leakage of
water from the valve may
indicate a problem.
TPR position - top of cylinder
It is important that you raise
and lower the easing gear
gently. During the operation,
if the valve does not discharge
water when the easing gear is
lifted, or does not seal again
when closed, arrange for an
authorised person to come and
inspect the system immediately.
During servicing of your
cylinder the TPR valve
IMPORTANT
needs to be checked
and/or replaced. This
needs to be done by an
authorised person at
intervals not exceeding
five years, or more
frequently in areas where
the water is classified as
hard.
How to operate the easing gear
Lift until water flows
from the drain line,
lower gently
Mains pressure indoor stainless steel cylinders: Owner and installer guide: 20132-D 04-15 | 5
A TPR valve must not be
replaced with one that has a
higher pressure rating than that
specified for the cylinder.
Maintenance and servicing
Rinnai has a maintenance,
service, and spare parts network
with personnel who are fully
trained and equipped to give
the best advice on your Rinnai
product. Regular maintenance
and servicing is not covered by
the Rinnai warranty.
For help locating a service
person in your area call 0800
RINNAI (0800 746 624).
Water
heater
Drain line