Rinnai GHF4135L User manual

This appliance shall be installed in accordance with:
xManufacturers Installation Instructions
xMunicipal Building Codes
xAS/NZS 3000 Wiring Rules
xAS/NZS 3500.4 Plumbing and Drainage
xAny 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
GHF4135L
GHF4170N
GHF4170L

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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 Each Day? ................................................................................................. 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
Outdoor Tank Installation ............................................................................................................................ 5
Location ....................................................................................................................................................... 5
Vertical Flue Terminal Clearances .............................................................................................................5
Wall Brackets ..............................................................................................................................................6
Safe Tray ..................................................................................................................................................... 6
Water Supply Pressure ...............................................................................................................................6
Pool Heating ................................................................................................................................................ 6
Pressure & Temperature Relief Valve ......................................................................................................... 6
Cold Water Connection ...............................................................................................................................7
Insulation of Pipes ....................................................................................................................................... 7
Temperature Protection ...............................................................................................................................7
Inlet Connections.......................................................................................................................................... 7
Appliance Dimensions .................................................................................................................................8
Appliance Specifications .............................................................................................................................9
Gas Connections .........................................................................................................................................9
LPG Gas Installation Instructions ................................................................................................................9
LIGHTING INSTRUCTIONS..................................................................................................10
Shutting Down The Water Heater .............................................................................................................10
COMMISSIONING ................................................................................................................11
Main Gas Pressure Regulator ...................................................................................................................11
Adjustment for LPG: ..................................................................................................................................11
To set the LPG TPP: .................................................................................................................................11
TROUBLESHOOTING...........................................................................................................12
What Should I Check Before Making A Service Call?................................................................................ 12
No Hot Water ............................................................................................................................................. 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
COMMISSIONING CHECK LIST...........................................................................................16
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 installedcorrectly by an authorisedperson. 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 Victorian Building Authority (VBA).
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 Victorian Building Authority on 1300 815 127.
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 halfa 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 tightly.
CONSIDER.....
Installing child proof tap covers or child resistant 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 Rinnai on 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 magnesium 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 your 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 shouldbe fitted and where the index is greater than 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, such 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 accumulate 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 regarding 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 should contact the 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 and 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 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 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 permitted to remove any covers ormake setting
adjustments.
Do not open or adjust any electrical covers or devices yourself.
CAUTION
NOTE

Rinnai Australia 5 Operation & Installation Manual
GENERAL INSTALLATION INSTRUCTIONS
Regulations
This appliance must be installed in accordance with:
• Current AS/NZS 3000, AS/NZS 3500 and AS/NZS 5601
• Rinnai Installation Instructions
• Local regulations and municipal building codes including local OH&S requirements
Installation, Service and Removal MUST BE by an Authorised Person only.
Outdoor Tank Installation
The water heater must be installed outdoors, with the minimum clearances as shown and must be
installed on a permanently level, stable and clean draining surface suitable for this appliance. Refer
to Figure 1 below.
We recommend a plinth be installed under the water heater where the water heater is subjected to
wet conditions.
Minimum clearance around the windows and doors must be maintained - refer to AS/NZS 5601.
In areas where water pipes are prone to freezing, drain lines must be insulated, must not exceed 300
mm in length and are to discharge into a tundish through an air gap of between 75 mm and 150 mm.
Location
The water heater should be located as close as possible to the most frequently used hot water outlet.
Ensure that the data label is clearly visible and that there is adequate access for servicing the unit.
All models are equipped with a sacrificial anode, accessible through the top cover. Allow 50% of the
height of the water heater for clearance above to replace the anode.
Vertical Flue Terminal Clearances
Figure 1 - Vertical Flue Terminal Clearances
Refer AS/NZS 5601 - Gas Installation Code for more information.
500 mm
300 mm
B
A
A
A
B

Rinnai Australia 6 Operation & Installation Manual
GENERAL INSTALLATION INSTRUCTIONS
Wall Brackets
For convenience, a wall mounting bracket and fixing screws are included with the Rinnai appliance.
AS/NZS 5601.1 state that gas appliances shall be suitably supported or secured to a durable structure
that is appropriate for the installation.
If this appliance is suitably supported on a durable structure then the installation of this bracket is at
the discretion of the installer.
STEP 1.
Locate bracket at the top rear of the water heater and mark
one of the three options for wall drilling, while in the same
position mark the two self-tappingscrew positions for the tank.
STEP 2.
Fix bracket to the top of the tank using the self-tapping screws
provided.
STEP 3.
Fix bracket to the wall using a suitable fastener (installer to
supply)
Safe Tray
If property damage could occur as a result of a leak or spillage from the water heater then a properly
drained safe tray must be installed. The safe tray must be constructed and installed to the
requirements of AS/NZS 3500.4 and any other local codes and regulatory authority requirements.
Water Supply Pressure
This water heater is designed for direct connection to water supply pressures of no greater than:
800 kPa - On All Models
Where the mains pressure can exceed or fluctuate beyond the pressure shown above a pressure
limiting device (complying with AS 1357) must be fitted in the cold water inlet supply. This device must
be installed after the isolating valve and set below the pressure shown above. During periods of lower
demand water pressure may increase.
Pool Heating
This water heater must not be used for pool heating.
Pressure & Temperature Relief Valve
The Pressure & Temperature Relief Valve is supplied loose with the water heater. The valve rating is:
1000 kPa on All Models
• 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.

Rinnai Australia 7 Operation & Installation Manual
GENERAL INSTALLATION INSTRUCTIONS
• The PTR Valve must not be tampered with or removed. The water heater must not be operated
unless this valve is fitted 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.
Cold Water Connection
An approved isolating valve, non return valve, line strainer (optional but recommended), and union
must be fitted between the supply main and either of the RP¾/20 sockets marked "Inlet" at the bottom
of the water heater. All fittings must be approved by the relevant Authority.
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 hotwater
lines are insulated.
Please check local regulations regarding the use of hot water supply pipework that are not made of
copper.
Insulation of Pipes
All hot water pipes must be insulated with UV stabilised insulation.
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/NZS 3500.4 that a suitably approved temperature control
device be fitted 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.
Inlet Connections
Figure 2 - Inlet Connections
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 valveeasing lever at least once everysix (6) months may
result in a problem with the water heater and in some cases the tank may fail.
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.
For S.A. and W.A.:
It is a state requirement that a pressure relief valve be fitted on the cold water supply
line between the non return valve and the water heater. Refer to Inlet Connections
refer Figure 2.
A combined isolating valve/non-return valve/line strainer may be used. Expansion
valve only required where local regulations demand or when the water saturation
index is greater than 0.4.
WARNING
WARNING
NOTE
Union
Connection
Non-return
Valve
Line
Strainer
Cold Water
Inlet
Expansion
Valve
Isolating Valve
(Spindle Vertical)
Drain
NOTE

Rinnai Australia 8 Operation & Installation Manual
GENERAL INSTALLATION INSTRUCTIONS
Appliance Dimensions
Figure 3 - Appliance Dimensions
Models GHF4135N/L GHF4170N/L
Storage Capacity (L) 135 170
Gas Pipe Height (mm) 276
Cold Water Inlet Height (mm) 328 403
Hot Water / PTR Port Height (mm) 988 1213
Gas Pipe Depth (mm) 459
Cold / Hot / PTR Port Depth (mm) 210
Overall Height (mm) 1579 1915
Overall Depth (mm) 508
Overall Width (mm) 420
Weight (kgs) Empty 68 83
Weight (kgs) Full 203 253
A
B
C
DE
E
G
H
F
A
B
C
D
E
F
G
H