Rinnai RIN50E36, RIN50E24P, RIN25E24P User Manual
Owner’s Manual
25 and 50 Litre Electric Storage Water Heater
Models: RIN25E24P
RIN50E24P
RIN50E36
Installation Details
Owner’s Information
Carefully remove all packaging and
transit protection from the heater before
installation. Dispose of the packaging
responsibly using re-cycling facilities
where they exist.
Specications and materials may change without notice.
Effective for all 25L and 50L electric storage water heaters manufactured and sold after 1st May 2011.
RIN3699 023334 Rev. A
Contents
Installation Details 1
Plumbing Connections 3
Electrical Connection 5
Specications 6
Operating Instructions 7
Safety Information 8
Service Information 9
Troubleshooting 10
Owner’s Manual
25L and 50L Electric Storage Water Heaters
RIN3699 023334 Rev. A
25L and 50L Electric Storage Water Heaters
Installation Details
Owner’s Manual
Installation Requirements
This water heater must be installed
by a licensed tradesperson, and in
accordance with
• AS/NZS3500.4.2 “National
Plumbing and Drainage Code Hot
Water Supply Systems – Acceptable
Solutions”.
• AS/NZS3000.
• Local authority regulations.
• Outside Australia and New Zealand,
please refer to local plumbing and
building codes and regulations.
• Notice to Victorian customers from
the Victorian Plumbing Industry
Commission – this water heater
must be installed by a licensed
person as required by the Victorian
Building Act (1993). Only a licensed
person will give you a compliance
certicate, showing that the work
complies with all the relevant
Standards. Only a licensed person
will have insurance protecting their
workmanship for 6 years. Make sure
you use a licensed person to install
this water heater and ask for your
Compliance Certicate.
Water Supply Pressure
This water heater is designed for direct
connection to water supply pressures
of:
25 & 50 Litre Models – 800kPa
Where the mains pressure can exceed
or uctuate beyond the pressure
shown above, a pressure limiting
device (complying with AS1357) must
be tted in the cold water inlet supply.
This device must be installed after
the isolating valve and set below the
pressure shown above. Note during
periods of lower demand water pressure
may increase.
Caution: This water heater delivers
hot water at temperatures exceeding
50°C. Refer to AS/NZS3500 and local
regulations regarding the need for
additional hot water delivery temperature
control.
Pool Heating
This water heater must not be used for
pool heating.
RIN3699 023334 Rev. A
1
25L and 50L Electric Storage Water Heaters
Installation Details
Owner’s Manual
Location
The water heater should be located as
close as possible to the most frequently
used hot water outlet. Adequate
access must be made for service to the
element, thermostat, relief valve and
anode. Ensure that the data plate is
clearly visible.
Note: All models are equipped with a
sacricial anode, accessible through the
top cover. Allow 50% of the height of
the water heater for clearance above to
replace the anode.
We recommend a plinth be installed
under the water heater where the
water heater is subjected to wet
conditions.
A properly drained overow tray must
be used where property damage could
occur from water spillage. (See AS/
NZS3500.4.2 for further details.)
When installing this water heater in a
roof area as a mains pressure unit, refer
to local regulations.
Note: The warranty does not cover
damage due to leakage of the water
heater.
2
RIN3699 023334 Rev. A
25L and 50L Electric Storage Water Heaters
Plumbing Connections
Owner’s Manual
Pressure & Temperature Relief
Valve
The Pressure & Temperature Relief Valve
is supplied loose with the water heater.
Please refer to the specications
table on page 6 for the valve ratings.
The PTR valve must be installed directly
into the top socket marked “RELIEF
VALVE”. The drain line from this valve
must run in a continuously downward
direction in a frost-free ambient position
with the discharge end left open to
atmosphere permanently.
The PTR Valve is not intended to enable
connection of the water heater to
supplementary energy sources such as
solar panels or slow combustion stoves
(refer AS/NZS 3500.4 for guidance on
these types of installations).
Open the PTR Valve for approximately
10 seconds by lifting the lever on the
valve to ensure water is relieved to waste
through the relief drain pipe. Lower lever
gently and check that it closes correctly.
The PTR Valve must not be tampered
with or removed. The water heater must
not be operated unless this valve is
tted and in working order.
The PTR Valve should be checked for
adequate performance or replaced at
intervals not exceeding 5 years, or less
in areas where local regulations apply.
Important: The PTR Valve and its
drain outlet pipe must not be sealed or
blocked. It is normal for the PTR valve
to leak a small amount of water during
heating cycles.
Danger
Failure to operate the relief valve easing
lever at least once every six (6) months
may result in a problem with the water
heater and in some cases the tank may
explode.
Warning: A separate drain line must be
run for this relief valve. It is not permitted
to couple drain lines from relief valves
into a single common drain line.
Note: Brass plugs are supplied with
the water heater to plug off the unused
ttings. Ensure that a sealing material is
applied to the plugs to prevent leaking.
Cold Water Connection
An approved isolating valve, non
return valve, line strainer (optional but
recommended), and union must be
tted between the supply main and
either of the RP¾/20 sockets marked
“Inlet” at the bottom of the water heater.
All ttings must be approved by the
relevant Authority. See the diagram on
page 5 for details.
Note for S.A. and W.A.: It is a state
requirement that a pressure relief valve
be tted on the cold water supply line
between the non return valve and the
water heater. See the diagram below for
details.
RIN3699 023334 Rev. A
3
25L and 50L Electric Storage Water Heaters
Plumbing Connections
Owner’s Manual
Hot Water Connection
The hot water pipe should be connected
to either of the RP¾/20 sockets marked
OUTLET at the top of the unit. For the
most economical operation of the water
heater, it is recommended that all hot
water lines are insulated. Please check
local regulations regarding the use of
hot water supply pipework that are not
made of copper.
Inlet Connections
Cold Water
Inlet
Isolating Valve
(Spindle Vertical)
Line
Strainer
Temperature Protection
Water heaters can produce very hot
water. To reduce the risk of scald injury,
it is mandatory under the requirements
of Australian Standard AS/NZS3500.4.2
that a suitably approved temperature
control device be tted to the hot water
supply to outlets used primarily for
personal hygiene. This valve should be
checked at regular intervals to ensure its
operation and settings remain correct.
Expansion
Valve
Drain
Non-return
Valve
Union
Connection
Note: a combined isolating valve/non-return valve/line strainer may be used.
Expansion valve only required where local regulations demand.
4
RIN3699 023334 Rev. A
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