Rinnai IHF10 Operation & Installation Manual

All Rinnai gas products

are A.G.A. certified.

This Appliance complies

with AS 3498:2009

AGA LIC. 60089

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.

Operation & Installation Manual

Rinnai Instantaneous Water Heater

Model - IHF10

Rinnai Australia i Operation Manual

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Rinnai Australia ii Operation Manual

REGULATORY INFORMATION..................................................................................................1

WARNING ABOUT HOT WATER................................................................................................ 1

FEATURES AND BENEFITS.......................................................................................................2

IMPORTANT INFORMATION...................................................................................................... 3

OPERATION ................................................................................................................................ 4

DELIVERY TEMPERATURE................................................................................................................... 4

WATER FLOW AND TEMPERATURE ADJUSTMENT .......................................................................... 5

TROUBLESHOOTING.................................................................................................................6

MAINTENANCE....................................................................................................................................... 6

INSTALLATION ........................................................................................................................... 8

CONTACT INFORMATION .......................................................................................................17

OPERATION

Rinnai Australia 1 Operation Manual

Your Rinnai Instantaneous water heater has been certified for water, plum bing and gas safety. Certification details
are shown on the appliance.

This Appliance must be installed correctly by an authorised person. The insta llation of gas and water 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.

Hot Water can cause severe scalds.
Those most at risk are children disabled, elderly and the infirm.

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).

Consider having temperature limiting devices such as tempering valves installed in the heated water
supply to bathrooms.

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 2 Operation Manual

FEATURES AND BENEFITS

Congratulations on purchasing the Rinnai Instantaneous water heating system.

• The appliance NEVER RUNS OUT of hot water. Whilst water and gas supplies are connected and available and

battery power is available, hot water is delivered whenever hot water taps are open.

• The appliance is compact, saving both wall and floor space.

• The burner lights automatically when the hot water tap is opened, and goes out when the tap is closed.

IGNITION IS ELECTRONIC rather than by pilot light for optimum reliability and minimum running costs. When
the hot water tap is closed no gas is used.

• The appliance has a very high gas combustion efficiency minimising gas consumption an d operating cost.

• Operating noise level is very low.

Unlike most other instantaneous water heaters, this model is fitted with a battery powered electronic ignition and
microprocessor control module offering unique benefits as follows:

• Electronic ignition rather than ignition by pilot light ensures optimum reliability and minimum running costs as no

gas is used when the hot water tap is closed.

• The water temperature and gas flow are microprocessor controlled offering superior performance.

• Battery power ensures optimum reliability and eliminates the need for a mains power supply and associated

costs.

Unlike most other instantaneous water heaters, this appliance also has a modern state of the art flue design for
reliable operation even under high wind conditions.

Rinnai Australia 3 Operation Manual

IMPORTANT INFORMATION

The range of Rinnai Instantaneous water heaters re ferred to in this manual are incompatible with
solar water heating systems. A dedicated range of solar compatible continuous flow water
heaters is available from Rinnai.

Always check water temperature carefully before use. Refer
to the WARNING ABOUT HOT WATER in this manual for
important safety information.

At low water flows, the hot water unit may extinguish without
warning. Opening the tap further will restart the appliance.

Do Not touch the unit cover or the flue outlet.
Do Not insert objects into the flue outlet.

On colder days steam may discharged from the flue outlet.
This condition is normal for high efficiency appliances and
does not indicate a fault.

Keep flammable materials, spray cans, fuel containers, pool
chemicals, trees, shrubs, etc. well clear of the flue outlet.

Do Not spray water directly into the flue terminal.

NOTE

Rinnai Australia 4 Operation Manual

OPERATION

The opening of any hot water tap will automatically start the appliance.
Once water is flowing through the appliance the burner will be ignited by electronic ignition via the electronic ignition

and control module.
When the hot water tap is closed and water flow through the appliance has stopped the burner flame will extinguish.

Battery for electronic ignition and control module

A long life 1.5 Volt "D" size battery is supplied with the
appliance and should have been fitted by your installer.

If the battery runs flat, replace it with a new 1.5 Volt "D"
size battery. Long life batteries are r ecommended. The
battery compartment is located on the left hand side at
the bottom of the appliance. Approximate battery life is 6
months. Actual battery life may be different depending
on individual hot water usage patterns.

1. Locate the battery compartment and open the
hinged lid (opens towards the rear of appliance).

2. Remove the expired battery and replace it with a
new battery ensuring that the correct polarity is
observed, as is shown on the inside of the battery
compartment lid.

3. Close the the battery compartment lid.

DELIVERY TEMPERATURE

The delivery temperature set point programmed into the electronic ignition and control module is 60°C.
The actual delivery temperature may be lower depending on the prevailing operating conditions, for example, low

incoming cold water temperatures and high water flow rates.

Hot Water can cause severe scalds.
Those most at risk are children disabled, elderly and the infirm.

HOTHOT

COLDCOLD

ON!ON!

HOTHOT

COLDCOLD

OFF!OFF!

Battery

Compartment

Location

Battery compartment

with the lid open

Battery polarity guide on the inside of lid
(positive to the right and negative to left)

To the front

of appliance

Rinnai Australia 5 Operation Manual

OPERATION

WATER FLOW AND TEMPERATURE ADJUSTMENT

Water fixtures with a rated water flow rate of 7.5 litres per minute or higher are recommended.
A water flow adjustment lever is fitted to adjust the maximum water flow from the appliance. Such adjustment may

be useful to compensate for seasonal variations in the temperature of the cold water supply.

• Turning the water flow adjustment lever towards the left (Clockwise) will decrease the water flow and increase the
hot water temperature. This setting is recommended during winter.

• Turning the water flow adjustment lever towards the right (Anti-clockwise) will increase the water flow and
decrease the hot water temperature. This setting is recommended during summer.

• If the heated water temperature delivere d from an outlet is not hot enough it can normally be increase d to the
desired temperature by closing the tap a little as this will reduce the water flow rate.

• The appliance has a minimum water flow rate that is required for operation. If the water heater does not activate
when opening a tap, the flow rate may be too low. Open the tap a little more to increase the water flow rate.

Freezing Weather

If freezing conditions are expected (drop below 0°C) , turn off wate r and gas and drain all water from the appliance
to prevent damage by expansion of freezing water.

For appliances installed in locations where the temperature falls below 0°C for short periods, the installation of an
Anti Freezing Relief Valve will minimise the possibility of damage to the appliance.

This water heater MUST NOT be installed in areas where the temperature remains below 0°C for
extended periods.

Flow adjustment

lever location

TURN CLOCKWISE

Decreases Water Flow

Increases Temperature

TURN ANTI-CLOCKWISE

Increases Water Flow

Decreases Temperature

Flow adjustment lever

To the front

of appliance

WARNING

Rinnai Australia 6 Operation Manual

TROUBLESHOOTING

.

MAINTENANCE

Rinnai has a Service and Spare Parts network with personnel who are fully trained and equipped to give the best
service on your appliance. If your appliance requires service, please call our National Help Line. Rinnai recommend
that the appliance be serviced by an authorised person every 2 years.

noituloS tluaF melborP

retaw ta no denrut si sag kcehC ylppus sag oN

heater and gas meter or cylinder

yrettab ecalpeR rewop yrettab woL

Burner does not
ignite, or is
difficult to ignite

llaC ecivreS rehtO

Low water pressure Check water pressure

yrettab egnahC rewop yrettab woL

Run out of cylinder gas Replace gas cylinder

Pilot lights but no
main burner

llac ecivreS rehtO

.erusserp sag kcehC erusserp sag woL

To be carried out by an authorised
person only

Run out of cylinder gas Replace gas cylinder
Excessive water flow rate Reduce water flow from heater

(Turn water lever clockwise)

low water
temperature

llac ecivreS rehtO

Low water pressure Check water pressure to

appliance

Blocked outlet fixture Check and clean

Low water flow

llac ecivreS rehtO
Interrupted gas supply Service Call
Run out of cylinder gas supply Replace gas cylinder

Cuts off when
operating

llac ecivreS rehtO

Smell gas Faulty / loose gas connection Service call

Damaged components and connections Service call Water leakage

from appliance

llac ecivreS egamad tsorF
Excessive pressure. Check water supply pressure Water leakage

from pressure
relief valve

Faulty pressure relief valve Service call

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Rinnai Australia 8 Installation Manual

OPERATION ...............................................................................................................................ii

GENERAL INSTALLATION INSTRUCTIONS ............................................................................9

REGULATIONS ..................................................................................................................................................... 9

APPLICABLE MODELS ...................................................... ................................................................................... 9

UNPACKING THE APPLIANCE ............................................................................................................................ 9

APPLIANCE LOCATION ........................................................................................................................................ 9

PIPE SIZING .......................................................................................................................................................... 9

WATER SUPPLY ................................................................ ... ... ... .... ... ... ... .... ... ... ... ... ............................................. 9

HOT WATER DELIVERY TEMPERATURE ......................................................................................................... 10

MOUNTING THE APPLIANCE ............................................................................................................................ 10

SERVICE CONNECTION POINTS ........................................................................ ... .... ... ... ... .... ... ....................... 10

SPECIFICATIONS .....................................................................................................................11

HORIZONTAL FLUE TERMINAL CLEARANCES ................................................................... 12

APPLIANCE DIMENSIONS ......................................................................................................13

WIRING DIAGRAM ................................................................................................................... 14

COMMISSIONING .....................................................................................................................15

TESTING ...................................... ....................... ...................... ....................... .................................................... 15

COMMISSIONING CHECK LIST .............................................................. .... ... ... ... ... .... ... ... ... .... ... ....................... 15

CONTACT INFORMATION .......................................................................................................17

INSTALLATION

Rinnai Australia 9 Installation Manual

GENERAL INSTALLATION INSTRUCTIONS

REGULATIONS
This appliance must be installed in accordance with:

• Current 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.

The Authorised Person performing the installation is responsible for:

1. Correct commissioning of the appliance.

2. Ensuring the appliance performs to the specifications on the dataplate.

3. Demonstra tin g th e op e ra tio n of th e ap plia n ce to the customer, including water flow rate adjustment.

4. Demonstrating the location of the battery compartment and how to replace the battery.

5. Advising the customer of the need for regular servicing (Rinnai recommends servicing every 2 years).

6. Handing these instructions to the customer.

APPLICABLE MODELS

These Installation Instructions apply only to the following Rinnai Instantaneous water heater model listed on the
cover page of this manual.

UNPACKING THE APPLIANCE

Packed with the appliance should be the Operating / Installation Manual, Commissioning check list, Warranty
booklet, Gas adaptor with washer, Gas regulator, Regulator inlet pressure testing point and Battery. Remove all
packaging and protective materials from the appliance and accessories. If any damage is evident or any
accessories are missing DO NOT install or operate the appliance. Contact your supplier for advice.

APPLIANCE LOCATION

• This appliance is designed for ‘Outdoor’ Installation only. As such, it must be located in an above ground open air
situation with natural ventilation, witho ut stagnant areas, where gas leakage and products of combustion are
rapidly dispersed by wind and natural convection.

• This appliance must be moun ted on a vertical structure with the water and gas connections on the underside
pointing downwards. For appliances installed on elevated structures or under floors specific requirements apply.
Refer to AS/NZS 5601 for details.

• This appliance must not be used as a domestic spa, swimming pool h eater or as part of a solar hot water system.

• This appliance must be placed as close as practicable to the most frequently used hot water outlet or outlets to
minimise the delay time for hot water delivery.

• All appliances must be installed to ensure a ccess can be gained without hazard or undue difficulty for inspection,
repair, renewal or operational purposes. Sufficient clearances shall allow access to, and removal of, all
serviceable components.

• Appliances should not be moun ted higher than 2.5 metr es above the ground or flo or level unless the customer
can arrange permanent and safe access or can provide another means of access, for example, by means of
scissor or boom lifts acceptable to local authorities.

PIPE SIZING

• See Table 1 (Specification table) for appliance gas consumption. If the gas pipe sizing is insufficient the customer
will not get the full performance benefit. Gas pipe sizing must consider the gas input to this appliance as well as
all the other gas appliances in the premises. The gas meter and regulator must be specified for this gas rate. An
approved sizing chart such as the one in AS/NZS 5601 should be used.

• Water pipe sizing and layout should be performed in accordance with AS/NZS 3500. All hot water pipe-work
should be insulated to optimise performance and energy efficiency.

WATER SUPPLY

• See Table 1 (Specification table), for applicable water pressures. Approved pressure limiting valves may be
required if the 'Maximum' rated water supply pressures in Table 1 are exceeded. To achieve the rated flow, the

Rinnai Australia 10 Installation Manual

GENERAL INSTALLATION INSTRUCTIONS

'Minimum' water supply pressures in Table 1 m ust be su pplie d. The water he aters will operate at lower pressures
but will not achieve the rated flow.

• Water chemistry and impurity limits are detailed in the separate Warranty booklet. Most metropolitan water
supplies fall within the requirements. If you are unsure about your local water qu ality, contact your water au thority.
If sludge or foreign matter is present in the water supply, a suitable filter or strainer should be incorporated in the
water supply to the water heater.

HOT WATER DELIVERY TEMPERATURE

• The delivery temperature set point programmed into
the electronic ignition and control module is 60°C.
The actual delivery temperature may be lower
depending on the prevailing operating conditions, for
example, low incoming cold water temperature and
high water flow rate.

• Local regulations and/or the requirements of AS/NZS
3500 must be considered regarding the temperature
limitations of hot water supplied to areas used
primarily for personal hygiene. The temperature of
water to these areas may be limited to 50ºC or less.
This can be achieved by the use of a Temperature
Limiting Device (TLD). Installation with a TLD is to be
in accordance with the diagram right.

MOUNTING THE APPLIANCE

• See Table 1, (Specification table) for individual appliance weights. The wall or structure on which the units are to
be mounted must be capable of supporting these weights and the associated pipe-work.

• Ensure that suitable fixing screws or bolts are used to secur e the unit to the wall; in accordance with AS/NZS

5601.Wooden plugs shall not be used.

• Figure 2. page 13 shows the position of the mounting holes on the back panel of the appliance

• The appliance can be mounted directly against the wall or structure. There is no need to use, non combustible
sheeting or leave an air gap between the appliance back panel and the wall or structure for the purposes of
meeting the temperature hazard requirements of AS/NZS 5601.

SERVICE CONNECTION POINTS

• An approved full flow isolation valve and disconnection union MUST be fitted to the cold water inlet.

• A non return valve is not required unles s requ ired by loca l regulations. Isolation valves must not be fitted directly
to the appliance.

• Purge gas and cold water supply lines to remove air and swarf before final connection of the appliance. Swarf in
either the gas or water supplies may cause damage or malfuntion. These are not covered by warranty.

See Table 1, (Specification table) for individual appliance connection / fitting dimensions.
That these dimensions are NOT an indication of the pipe sizes required.

KITCHEN LAUNDRY BATHROO

M

ENSUITE

TLD

H
O
T

C
O
L
D

TLD = Temperature Limiting Device

G
A
S

Propane

Gas

1

2

3

Natural

Gas

1

2

4

1

2

3

½’ Gas Adaptor with washer (supplied)

Gas Regulator (supplied)

½’ to ½’ Regulator inlet pressure test point (supplied)

4

¾’ to ½’ Regulator inlet pressure test point (supplied)

NOTE

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SPECIFICATIONS

Table 1 - Appliance Specification

Model

Water Supply kPa

Weight Kg

Fittings

Minimum Inlet

Water Pressure

For 10L/min.

Minimum Inlet

Water Pressure

For Operation

Maximum Inlet

Water Pressure

Hot & Cold Water Natural Gas Propane Gas

IHF10 120 40 1000 14

R 1/2” BSP R 1/2” BSP R 1/2” BSP

Male Female Male

Model Gas Type

Inlet Gas Pressure

kPa

Burner TPP

kPa

Nominate Gas

Consumption

MJ/h

Heating Capacity

at 25°C rise

IHF10 NG 1.13 0.69 76.2

10 L/min

IHF10 Propane 2.75 2.38 76

Rinnai Australia 12 Installation Manual

HORIZONTAL FLUE TERMINAL CLEARANCES

Figure 1. Extract from AS/NZS 5601

Flue terminal Fan assisted flue appliance only Gas meter Electricity meter or fuse box Mechanical air inlet

Natural draft

• Appliances 003tupni h/JM 05 ot pu

• Appliances 005tupni h/JM 05 revo

003* ecafrus rehto ro ynoclab a evoba ,dnuorg eht m

orFb

005* renroc lanretxe ro llaw nruter a tnorFc

d

From a gas meter (M) (see 5.11.5.9 for vent terminal location of regulator )

0001)stnemeriuqer dnalaeZ weN rof 6.6 elbaT ees

(

e From an electricity meter 005† )P( xob esuf ro

051epip lios ro epip niard a morFf

005

005

g Horizontally from any building structure* = or obstruction facing a terminal

h From any other flue terminal 005, cowl, or combustion air intake †

• Appliances 005* tupni h/JM 051 ot pu

• Appliances

over 150 MJ/h input up to 200 MJ/h input *

• Appliances 0051 over 200 MJ/h input up to 250 MJ/h input *

• Appliances 0051* tupni h/JM 052 revo

• All fan-assisted flue appliances , in the direction of discharge -

0051rewolb aps a gnidulcni ,telni ria lacinahcem

a morFk

051tu

pni rh/JM 05 ot pu sretaeh ecapS •

• Other appliances 005tupni rh/JM 05 ot pu

• Appliances 0001 over 50 MJ/h input and up to 150 MJ/h input

• Appliances 0051tupni h/JM 051 revo

1

Where dimensions c, j or k cannot be achieved an equivalent horizontal distance
measured diagonally from the nearest discharge point of the terminal to the opening
may be deemed by the Technical Regulator to comply.

2

See Clause 6.9.4 for restrictions on a flue terminal under a covered area.

3

See Figure J3 for clearances required from a flue terminal to an LP Gas cylinder.
A flue terminal is considered to be a source of ignition.

4

metI.feR

a

Min. clearances (mm)

Below eaves, balconies and other projections:

j

Horizontally from an openable window, door, non-mechanical air inlet, or any other opening into a building
with the exception of sub-floor ventilation:

Vertically below an openable window, non-mechanical air inlet, or any other opening into a building with the
exception of sub-floor ventilation:

NOTES:

† - Prohibited area below electricity meter or fuse box extends to ground level.

FIGURE 6.2 (in-part) MINIMUM CLEARANCES REQUIRED FOR BALANCED FLUE TERMINALS

* - unless appliance is certified for closer installation

For appliance s not addressed above acceptance should be obtained from the Technical Regulator.

n

0051

Rinnai Australia 13 Installation Manual

APPLIANCE DIMENSIONS

Figure 2.

Approximately

175 to base

of fittings

61

51

575 170

838

42548

380 205

201
219

380

120 120

120 120

70

70

70

51

Location of upper rear

mounting holes

Location of

lower rear

mounting hole

Rinnai Australia 14 Installation Manual

WIRING DIAGRAM

Figure 3.

Solenoid Valve 1

Solenoid Valve 2

High Voltage Lead (Ignition)

Flame Rod

Temperature Overheat Switch (Self-resetting)

Modulation Motor

Thermistor (Heated water outlet temperature)

Micro-switch

SV1

SV2

HV

FR

TTB

M

NTC

SW

MAIN

MICROPROCESSOR

TEMPERATURE

CONTROL

MICROPROCESSOR

Rinnai Australia 15 Installation Manual

COMMISSIONING

TESTING

1. Before final connection of the water heater purg e gas,
hot water and cold water supply lines. Swarf in either
the gas or water supplies may cause damage or
malfunction which is not covered by warranty.

2. See table 1 for connection size, water and gas
pressure specifications.

3. Turn on gas and cold water supplies.

4. Test for water leaks and gas escapes.

5. Isolate gas and water supplies. Remove test point
screw located on the regulator inlet pressure test
point and attach pressure gauge Figure 4.

6. Turn on gas and open hot water taps fully. Ensure
water flow lever is in the maximum flow position, see
page 5.

7. With all gas appliances in operation at maximum gas
rate, the pressure at the regulator inlet pressure test
point should read between 1.13 - 3.0 kPa on Natural
Gas. On LPG the pressure should be 2.75 - 3.0 kPa.
If the pressure is lower, the gas supply is inadequate
and the appliance will not operate to specification. It
is the Installers responsibility to check the gas meter,
service regulator and pipe work for correct operation/
sizing and rectify as required.

8. Replace the test point screw on the regulator inlet
pressure test point.

9. Isolate gas and water supplies.Remove the test point
screw located to the burner pressure test point on the
left hand side of burner manifold as shown right and
attach pressure gauge Figure 5.

10. Turn on the gas and open hot water taps fully. Ensure
the water flow lever is in the maximum flow position.

11. For burner test point pressures refer to the appliance
data plate. If the pressures are different adjust the
inlet gas regulator to achieve the required burner test
point pressures.

12. Close all hot water taps including the shower.

13. Inspect and clean the strainer located on the cold
water inlet connection. This procedure may need to
be repeated to ensure the strainer remains clear,
especially on new installations Figure 6.

14. After testing is completed, explain to the householder
the functions and operation of the water heater.

COMMISSIONING CHECK LIST

A commissioning check list is provided on the appliance
front cover to enable the installer to step through the
correct commissioning procedure when installing a Rinnai
water heater.

The check list can also assist the installer to identify
potential installation errors that may prevent the appliance
from operating correctly.

Propane

Gas

1

Natural

Gas

2

1

Propane gas regulator inlet pressure test point screw

2

Natural gas regulator inlet pressure test point screw

Test Point Screw

Cold Inlet

Connection/

Strainer

Location

Strainer Cap

Figure 5.

Figure 6.

Figure 4.

Rinnai Australia 16 Installation Manual

INSTALLER NOTES

Head Office

10-11 Walker Street,
Braeside, Victoria 3195
P.O. Box 460
Tel: [phone]
Fax: [phone]

National Help Line
Tel: [phone]* Fax: [phone]*
Spare Parts & Technical Info
Tel: [phone]* Fax: [phone]*

*Cost of a local call higher from mobile or public phones.

Australia Pty. Ltd.

ABN 74 005 138 769

Internet: www.rinnai.com.au E-mail: [e-mail]

Rinnai has a Service and Spare Parts network with personnel who are fully trained
and equipped to give the best service on your Rinnai appliance. If your appliance
requires service, please call our National Help Line. Rinnai recommends that this
appliance be serviced every 2 years.

Rinnai 17 IHF10 OIM 11-020 Issue 1 - 16/9/13

CONTACT INFORMATION