Rinnai GHF4135N, GHF4170N Operation & Installation Manual

This appliance shall be installed in accordance with:

x Manufacturers Installation Instructions
x Municipal Building Codes
x AS/NZS 3000 Wiring Rules
x AS/NZS 3500.4 Plumbing and Drainage
x Any other local relevant Statutory Regulation

Installation and Service must be performed by an authorised person.

THIS APPLIANCE IS NOT SUITABLE FOR USE AS A POOL OR SPA HEATER.

4 Star Gas Storage Hot Water Heater

Models: GHF4135N

GHF4170N

WMKA 21244

Operation / Installation Manual

All Rinnai gas products

are A.G.A. certified.

This appliance shall be installed in accordance with:

• Manufacturer’s Installation Instructions

• Current AS/NZS 3500 & AS/NZS 5601

• Local Regulations and Municipal Building Codes including local OH&S requirements
This appliance must be installed, maintained and removed by an Authorised Person.

This appliance is not suitable for use as a pool heater.

For continued safety of this appliance it must be installed operated and maintained in
accordance with the manufacturers instructions.

This Appliance complies

with AS 3498

IAPMO Lic WM - 022424

Operation & Installation Manual

Rinnai 4 Star Gas Storage Water Heater

Models - GHF4135N /GHF4170N

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Rinnai Australia 1 Operation & Installation Manual

REGULATORY INFORMATION..............................................................................................2

WARNING ABOUT HOT WATER........................................................................................... 2

CUSTOMER OPERATING INSTRUCTIONS ..........................................................................3

Operating Instructions..................................................................................................................................3

Water Quality................................................................................................................................................ 3

How Long Will The Heater Run....................................................................................................................3

How Does My System Work?....................................................................................................................... 4

By Owner - Six Monthly Service...................................................................................................................4

By Authorised Personnel Only - Five Year Service...................................................................................... 4

GENERAL INSTALLATION INSTRUCTIONS .......................................................................5

REGULATIONS ...........................................................................................................................................5

APPLICABLE MODELS .............................................................................................................................. 5

Outdoor Tank Installation ............................................................................................................................5

Location .......................................................................................................................................................5

Vertical Flue Terminal Clearances .............................................................................................................. 5

Water Supply Pressure ...............................................................................................................................6

Pool Heating ................................................................................................................................................6

Pressure & Temperature Relief Valve ......................................................................................................... 6

Cold Water Connection ............................................................................................................................... 6

Insulation of Pipes ....................................................................................................................................... 7

Temperature Protection ............................................................................................................................... 7

Inlet Connections.......................................................................................................................................... 7

APPLIANCE DIMENSIONS ........................................................................................................................8

SPECIFICATIONS ......................................................................................................................................9

Gas Connections .........................................................................................................................................9

Lighting Instructions ....................................................................................................................................9

Shutting Down The Water Heater .............................................................................................................10

COMMISSIONING ................................................................................................................11

Main Gas Pressure Regulator ...................................................................................................................11

TROUBLESHOOTING........................................................................................................... 12

What Should I Check Before...................................................................................................................... 12

Water Discharge from the PTR Valve....................................................................................................... 12

WARRANTY ..........................................................................................................................13

Warranty (Domestic and Commercial use) ................................................................................................14

Replacement Guarantee (Domestic use only) ...........................................................................................14

Table 1 - Water Characteristics..................................................................................................................15

TABLE OF CONTENTS - OPERATION MANUAL

Rinnai Australia 2 Operation & Installation Manual

Your Rinnai Gas Storage Hot Water Heater has been certified by the Australian Gas Association.
The A.G.A. Certification Number is shown on the data plate.

This Appliance must be installed correctly by an authorised person. The installation of gas, water, and
electricity must conform to local regulations.

The installation must also comply with the instructions supplied by Rinnai.
All dimensions referred to in these instructions are in millimetres, unless otherwise specified.
Please keep this instruction booklet in a safe place for future reference.

Notice to Victorian Consumers

This appliance must be installed by a person licensed with the Plumbing Industry Commission.
Only a licensed person will have insurance protecting their workmanship.
So make sure you use a licensed person to install this appliance and ask for your Compliance

Certificate. For Further information contact the Plumbing Industry Commission on 1800 015 129.

Heated water can be dangerous, especially for young
children and the infirm.

Water temperatures above 50°C can cause severe burns
instantly and may even result in death.

Those most at risk are children, disabled, elderly and the
infirm.

Hot water at 65°C (a very common hot water temperature in
Australia) can severely burn a child in less than half a second.
At 50°C it takes five minutes.

ALWAYS......

Test the temperature of the water with your elbow before placing your child in the bath, also
carefully feel water before bathing or showering yourself.

Supervise children whenever they are in the bathroom.
Make sure that the hot water tap is turned off tightl y.

CONSIDER.....

Installing child proof tap covers or child res istant taps (both approaches will prevent a small
hand being able to turn on the tap).

Setting your appliance at a maximum temperature of 50°C (Contact Rinnai Australia).

NEVER…..
Leave a toddler in the care of another child. They may not understand the need to have the

water temperature set at a safe level.

REGULATORY INFORMATION

WARNING ABOUT HOT WATER

Rinnai Australia 3 Operation & Installation Manual

CUSTOMER OPERATING INSTRUCTIONS

Gas Fitter:

Adjust gas pressure as required to achieve specified gas test point pressure. If problems are
encountered in this process, call 1300 555 545.

Failure to accurately set the pressure can result in damage to the water heater, and automatically
cancels the Manufacturer's Warranty. This water heater is to be installed only by an Authorised
Person.

User:
DO NOT place articles on or against this appliance.

DO NOT use store chemicals or flammable materials, or spray aerosols near this appliance.
DO NOT operate with panels or covers removed from the appliance.

Operating Instructions

This appliance is not intended for use by persons (including children) with reduced physical, sensory
or mental capabilities, or lack of experience and knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a person responsible for their safety.

Children and animals should be supervised to ensure that they do not interfere with the appliance.

The use of aerosol sprays in the vicinity of the heater should be avoided. The propellant gases used
in these devices, e.g. fly-spray, hair-spray and laundry aids, can break down in the flames of the
burner and produce corrosive agents.

Water Quality

Your water heater has been manufactured to suit water conditions of most Australian metropolitan
supplies. Please note that harsh water supplies can have a detrimental effect on the water heater and
its life expectancy. If you are unsure about your water quality you can obtain information from your
local water supply authority.

The water heater is designed for use in areas where the Total Dissolved Solids (TDS) content of the
water supply is less than 2500 mg/L. In areas where the TDS exceeds 600mg/L the ma gnesium alloy
anode (supplied in the heater) may become over reactive. To alleviate this, the anode should be
replaced with an aluminium alloy anode, available from yo ur local Rinnai supplier.

Water can also be very corrosive, measured by the saturation index. If the water saturation index is
greater than 0.40 an expansion control valve should be fitted and where the index is greater th an 0.80
the water heater should be installed with a hard water anode. Please consult our Service Department
for advice if required.

How Long Will The Heater Run Each Day?

The length of time that the heater will run each day will vary dependent upon the amount of hot water
being used by the household.

This water heater should be checked on installation and the test point pressure set
in accordance with that marked on Data Plate.

It is essential for the safe operation of this gas heater that clothing or any other
flammable material should not be placed against or on top of the water heater. In
addition, do not store flammable or corrosive materials, suc h as dry cleaning fluids,
pool chemicals, etc., in close proximity to the heater.

If the water heater is left in an operating condition and unused for two weeks or
more, a quantity of hydrogen (which is highly flammable) may accumula te in the top
of the water cylinder. To dissipate this gas safely it is recommended that a hot tap
be turned on for several minutes at a sink, basin or bath, but not a dishwasher,
clothes washer or other appliance. During this procedure there must be no smoking,
open flame or any other electrical appliance operating nearby. If hydrogen is
discharged through the tap it will probably make an unusual sound as with air
escaping.

WARNING

WARNING

CAUTION

Rinnai Australia 4 Operation & Installation Manual

CUSTOMER OPERATING INSTRUCTION

How Does My System Work?

The water storage tank is used to store the heated water ready for household use. It has a high
temperature vitreous enamel lining to provide long life, and a high density polyurethane insulation to
ensure minimal heat loss. Never turn the gas supply off during normal use.

This water heater is designed such that there is little to do re ga r ding system maintenance other than
that detailed in this Owner's Manual.

Personally inspecting or servicing any part of the system is not recommended.
After each 5 years of operation you shoul d contac t th e local service agent to replace all safety valves

and anodes to ensure continued system life and operational safety. In locations where the water has
a TDS greater than 600 ppm, this service is recommended each 3 years.

By Owner - Six Monthly Service

Operate the Pressure & Temperature Relief Valve for approximately 10 seconds by operating the
easing lever on the valve to ensure water is relieved to waste through the relief drain pipe. Check to
ensure the valve closes correctly.

By Authorised Personnel Only - Five Year Service

The five year service must be carried out by a licensed tradesperson. It is recommended that this
service be carried out by your local Rinnai agent.

The service should include the following:

• Replace the Pressure & Temperature Relief Valve.

• Replace the anodes (in areas of harsh or adverse water conditions, a more frequent check of
the anodes is recommended).

• Flush the water heater by doing the following:

1. Turn off gas and electricity supply.

2. Turn off the cold water supply to the water heater at the isolating valve.

3. Gently operate the easing lever on the Pressure & Temperature Relief Valve to release
the pressure in the water heater.

4. Disconnect the cold water inlet union to the heater and attach a drain hose.

5. Gently operate the Pressure and Temperature Relief Valve to let air into the heater and
allow water to escape through the hose.

6. Flush the heater until clear water appears then reconnect all fittings, fill the heater and
restore the gas and electricity supply.

All water heaters have the ability to produce hot water in a surprisingly short time.
To reduce the risk of scald injury, it is mandatory under the requirements of
Australian Standards AS 3500 that an Australian Standards approved temperature
control valve be fitted to the hot water supply pipe work. This valve should be
checked at regular intervals to ensure its operation and settings remain correct.

Important there are no user serviceable components in the system. Only an
authorised service representative is permit ted to remove any covers or make setting
adjustments.
Do not open or adjust any electrical covers or devices yourself.

CAUTION

NOTE