Rinnai HD56kWe external User manual

INFINITY HD56kWe continuous flow water heater
Installation guide
(REU-AM3237WC-ZK)
MODEL:
HD56kWe external

Important
This appliance must be installed in accordance with:
- Manufacturer’s installation instructions
- Current AS/NZS 3000, AS/NZS 3500, AS/NZS 5601.1 and G12/AS1
For use with Natural Gas or Universal LPG as indicated on the
appliance.
Not suitable as a spa or swimming pool heater.
Not suitable for hydronic applications.
Appliance must be installed, commissioned and serviced by an
DXWKRULVHGSHUVRQEHLQJLQ1HZ=HDODQGDOLFHQVHGJDV¿WWHU
Warning
Improper installation, adjustment, alteration, service and maintenance
can cause property damage, personal injury or loss of life.
For more information about buying, using, and servicing of Rinnai
appliances call: 0800 RINNAI (0800 746 624).
Rinnai New Zealand Limited
105 Pavilion Drive, Mangere, Auckland
PO Box 53177, Auckland Airport, Auckland 2150
Phone: [phone]
Email: [email protected]
Web: rinnai.co.nz
youtube.com/rinnainz
facebook.com/rinnainz

6SHFL¿FDWLRQ .........................................................4
Dimensions...........................................................5
Appliance location ................................................6
General installation information............................7
Water delivery temperature ..................................8
Water controller installation ..................................9
HD56kWe controller communication cables.........10
Commissioning.....................................................11
PCB interface and dip switch settings ..................12
Appliance programming parameters ....................13
Contents
Before installation
Unpack the appliance and check for damage. DO NOT install any damaged
items.
Check all components and that the correct gas type has been supplied.
Get an overview of the steps required before starting the installation. Failure to
follow these instructions could cause a malfunction of the appliance. This could
result in serious injury and property damage.
7KHVHLQVWUXFWLRQVDSSO\RQO\WRWKHFRQWLQXRXVÀRZZDWHUKHDWHUPRGHOOLVWHGRQ
the front of this guide.
Important
This appliance must be installed in accordance with:
- Manufacturer’s installation instructions
- Current AS/NZS 3000, AS/NZS 3500, AS/NZS 5601.1 and G12/AS1
For use with Natural Gas or Universal LPG as indicated on the
appliance.
Not suitable as a spa or swimming pool heater.
Not suitable for hydronic applications.
Appliance must be installed, commissioned and serviced by an
DXWKRULVHGSHUVRQEHLQJLQ1HZ=HDODQGDOLFHQVHGJDV¿WWHU
Warning
Improper installation, adjustment, alteration, service and maintenance
can cause property damage, personal injury or loss of life.
For more information about buying, using, and servicing of Rinnai
appliances call: 0800 RINNAI (0800 746 624).
Rinnai New Zealand Limited
105 Pavilion Drive, Mangere, Auckland
PO Box 53177, Auckland Airport, Auckland 2150
Phone: [phone]
Email: [email protected]
Web: rinnai.co.nz
youtube.com/rinnainz
facebook.com/rinnainz

4
6SHFL¿FDWLRQ
'HVLJQHGDQGPDGHLQ-DSDQWKH5LQQDL,1),1,7<+'N:HPRGHOLVDQH[WHUQDOFRQWLQXRXVÀRZ
gas hot, water heater with inbuilt frost protection and status monitor. It has electronic ignition and
requires electricity to operate.
The INFINITY HD56kWe is factory preset to 55 °C, but can be set to deliver higher temperatures,
up to 85 °C, making them ideal for commercial applications.
6SHFL¿FDWLRQVXPPDU\
• Colour Silver
• Input LPG 20.1-245 MJ/h
• Input NG 20.1-250 MJ/h
• Output 56.4 kW (LPG) 56.8 kW (NG)
• (ႈFLHQF\ 
6XLWDELOLW\
HD56kWe units are primarily designed for
commercial applications, but can be used for
larger hot water capacity residential projects.
They are not suitable as a spa or swimming
pool heater, or for hydronic heating.
Hard or acidic water will need to be treated to
use this product.
&DSDFLW\
Hot water capacity 1.5-37 litres per minute.
Nominal water capacity 32 litres per minute at a
25° rise (1920 L/h).
Connections
Hot water outlet R¾ (20 mm)
Cold water inlet R¾ (20 mm)
Gas supply R¾ (20 mm)
([KDXVWV\VWHP)RUFHGÀXH
,JQLWLRQV\VWHP: Direct electronic ignition.
/LQHSUHVVXUHV
NG 1.13-3.0 kPa
LPG 2.75-3.0 kPa
/LQHSUHVVXUHPD[LPXP
3.5 kPa (maximum standing pressure under
abnormal intermittent conditions is 5.0 kPa).
In the case of commercial metering
(i.e. 35-37 kPa coming in), there may be a
requirement to regulate the incoming line
pressure down.
Ingress protection rating
IPX5
3RZHUFRQVXPSWLRQ
Normal 87 W
Standby 2 W
Frost protection 88 W
Noise level
55 dB(A)
NOx af: 40 ppm
6DIHW\GHYLFHV
• Flame failure
• Boil-dry protection
• Overheat protection (OHS)
• Fusible link
• Pressure relief valve
• Combustion fan rpm check
:DWHUVXSSO\
Nominal operating pressure: 200-1000 kPa
0LQLPXPZDWHUÀRZOLWUHVSHUPLQXWH
Weight
23 kg

5
Dimensions
Service connection points
$QDSSURYHGIXOOÀRZLVRODWLRQYDOYHDQGGLVFRQQHFWLRQXQLRQ0867%(¿WWHGWRWKHFROGZDWHU
inlet. A non-return valve is not required unless stipulated by local regulations.
,VRODWLRQYDOYHV0867127EH¿WWHGGLUHFWO\WRWKHDSSOLDQFH
,WPD\EHQHFHVVDU\WR¿WDWHPSHUDWXUHOLPLWLQJGHYLFHIRUGHOLYHU\WRDUHDVXVHGSULPDULO\IRUWKH
purposes of personal hygiene, refer page on ‘Water delivery temperature’ for more information.
3XUJHJDVDQGFROGZDWHUVXSSO\OLQHVWRUHPRYHDLUDQGVZDUIEHIRUH¿QDOFRQQHFWLRQ6ZDUILQWKH
gas or water supplies may cause damage, a common problem, which is not covered by warranty.
470
450
281
6
15
117.8
15
570 600
15
172.5
16 15
240
572 640
A
23
180
160
130
80
2-5.5 x 24
long hole
4xØ13 hole
2-5.5 x 16
long hole
35
28
25
20
619
35
Cable access
(remote controller) Air intake Cold water inlet
Gas connection
Cable access
Hot water outlet
176.5 (elec)
109.8 (cold)
46.2 (gas)
185.8 (elec)
100 (hot)
450
70 120
61 67
2.5
Gas 37.4 mm
Cold 49.2 mm
Hot 40.2 mm
Cable access 28.2 mm
(remote controller)
Adimension
4
6SHFL¿FDWLRQ
'HVLJQHGDQGPDGHLQ-DSDQWKH5LQQDL,1),1,7<+'N:HPRGHOLVDQH[WHUQDOFRQWLQXRXVÀRZ
gas hot, water heater with inbuilt frost protection and status monitor. It has electronic ignition and
requires electricity to operate.
The INFINITY HD56kWe is factory preset to 55 °C, but can be set to deliver higher temperatures,
up to 85 °C, making them ideal for commercial applications.
6SHFL¿FDWLRQVXPPDU\
• Colour Silver
• Input LPG 20.1-245 MJ/h
• Input NG 20.1-250 MJ/h
• Output 56.4 kW (LPG) 56.8 kW (NG)
• (ႈFLHQF\ 
6XLWDELOLW\
HD56kWe units are primarily designed for
commercial applications, but can be used for
larger hot water capacity residential projects.
They are not suitable as a spa or swimming
pool heater, or for hydronic heating.
Hard or acidic water will need to be treated to
use this product.
&DSDFLW\
Hot water capacity 1.5-37 litres per minute.
Nominal water capacity 32 litres per minute at a
25° rise (1920 L/h).
Connections
Hot water outlet R¾ (20 mm)
Cold water inlet R¾ (20 mm)
Gas supply R¾ (20 mm)
([KDXVWV\VWHP)RUFHGÀXH
,JQLWLRQV\VWHP: Direct electronic ignition.
/LQHSUHVVXUHV
NG 1.13-3.0 kPa
LPG 2.75-3.0 kPa
/LQHSUHVVXUHPD[LPXP
3.5 kPa (maximum standing pressure under
abnormal intermittent conditions is 5.0 kPa).
In the case of commercial metering
(i.e. 35-37 kPa coming in), there may be a
requirement to regulate the incoming line
pressure down.
Ingress protection rating
IPX5
3RZHUFRQVXPSWLRQ
Normal 87 W
Standby 2 W
Frost protection 88 W
Noise level
55 dB(A)
NOx af: 40 ppm
6DIHW\GHYLFHV
• Flame failure
• Boil-dry protection
• Overheat protection (OHS)
• Fusible link
• Pressure relief valve
• Combustion fan rpm check
:DWHUVXSSO\
Nominal operating pressure: 200-1000 kPa
0LQLPXPZDWHUÀRZOLWUHVSHUPLQXWH
Weight
23 kg

6
Appliance location
1Rinnai recommend a maximum pipe run of 10 m.
2Power point can be within the pipe cover if a pipe cover is installed—must comply with AS/NZS Wiring rules. Rinnai DOES NOT
UHFRPPHQGFXWWLQJRႇWKHSOXJDQGKDUGZLULQJDVWKLVZLOOUHTXLUHVSHFLDOLVWWUDGHVWRGLVFRQQHFWWKHXQLWHYHU\WLPHWKHDSSOLDQFHLV
serviced.
This appliance is designed for outdoor installations only. It MUST BE located above ground in open
air with natural ventilation, without stagnant areas, where gas leakage and products of combustion
can be rapidly dispersed by wind and natural convection.
This appliance MUST BE placed as close as possible to the most frequently used hot water
outlet(s) to minimise the delay for hot water delivery1. For installations where the distance between
WKHZDWHUKHDWHUDQGRXWOHWVLVFRQVLGHUDEOHDÀRZDQGUHWXUQV\VWHPFDQEHXVHGWRPLQLPLVHWKH
waiting time for hot water delivery. Alternatively multiple appliances can be strategically placed to
serve outlets with minimal delay.
An AC 230 V, 10 A earthed power point must be provided adjacent2to the appliance. This power
point must be weatherproof. It must be clear of the gas and water connections to the appliance
DQGDOVRWKHÀXHH[KDXVWDQGZDWHUSUHVVXUHUHOLHIYDOYH7KHSRZHUFRUGRIWKHDSSOLDQFHLVP
long.
All appliances MUST BE installed to ensure access can be gained without hazard or undue
GLႈFXOW\IRUPDLQWHQDQFHDQGVHUYLFLQJ6XႈFLHQWFOHDUDQFHVVKDOODOORZDFFHVVDQGUHPRYDORIDOO
serviceable components. Appliances should not be mounted more than 2.5 m above the ground
RUÀRRUOHYHOXQOHVVWKHFXVWRPHUFDQDUUDQJHSHUPDQHQWDQGVDIHDFFHVVRUFDQSURYLGHDQRWKHU
means of safe access.
The appliance MUST BE mounted on a vertical structure with the water and gas connections on
the underside pointing downwards.
/RFDWLRQRIWKHÀXHWHUPLQDO0867%(LQDFFRUGDQFHZLWK6HFWLRQDQG)LJXUHRI$61=
+RUL]RQWDOREVWUXFWLRQV
AS/NZS 5601 states a minimum horizontal clearance of 500 mm between a building structure and
obstruction facing the terminal. At 500 mm the obstruction needs to be the full height of the unit,
as shown below, and not a partial obstruction. A partial obstruction of less than 1 m could result in
ZLQGSXVKLQJWKHÀXHJDVHVEDFNLQWRWKHÀXHWHUPLQDO
500mm
Minimum obstruction
height to be no less than
top of appliance
There MUST be NO partial obstructions to the appliance front cover or any other part of
the appliance casing. This will avoid the appliance from failing to operate under windy
conditions.
IMPORTANT

7
General installation information
6HFXULQJWKH5LQQDL,1),1,7<
The wall structure on which units are mounted
MUST BE capable of supporting the weight of
the appliance and associated pipe work.
(QVXUHWKDWVXLWDEOH¿[LQJVFUHZVRUEROWV
are used to secure the unit to the wall, in
accordance with AS/NZS 5601 section 6.
Wooden plugs shall not be used.
The top bracket has a keyhole slot so that the
appliance can be positioned by hanging it on
one screw. Once in position the appliance can
EHVHFXUHGZLWKDSSURSULDWH¿[LQJV
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 to meet the temperature hazard
requirements of AS/NZS 5601.
Pipe sizing
,IWKHJDVSLSHVL]LQJLVLQVXႈFLHQWWKH
appliance won’t perform properly. Gas pipe
sizing must consider the gas input into this
appliance as well as other gas appliances in
the premises. The gas meter and regulator
PXVWEHVSHFL¿HGIRUWKLVJDVUDWH
An approved sizing chart such as the one
in AS/NZS 5601 should be used. Refer
VSHFL¿FDWLRQIRUJDVFRQVXPSWLRQGHWDLOV
Water pipe sizing and layout should be
performed in accordance with AS/NZS 3500.
All hot water pipe work should be insulated to
RSWLPLVHSHUIRUPDQFHDQGHQHUJ\HႈFLHQF\
:DWHUVXSSO\
The appliance is intended to be permanently
connected to the water mains.
5HIHUVSHFL¿FDWLRQIRURSHUDWLRQDOZDWHU
pressure limitations. Approved pressure limiting
valves may be required if the maximum rated
water supply pressures are exceeded. To
DFKLHYHWKHUDWHGÀRZWKHPLQLPXPZDWHU
supply pressures must be met.
The water heaters will operate at lower
SUHVVXUHVEXWZLOOQRWDFKLHYHWKHUDWHGÀRZ
Contact Rinnai for gravity fed or low pressure
installations.
Water chemistry and impurity limits are detailed
in the operation guide within the warranty
section. Most metropolitan water supplies fall
within these requirements.
If you are unsure about the water quality
contact your water authority. If sludge or foreign
matter is present in the water supply, a suitable
¿OWHURUVWUDLQHULVUHTXLUHGLQWKHZDWHUVXSSO\
to the water heater to prevent unwarranted
damage and loss of performance.
)URVWSURWHFWLRQ
Frost protection operates automatically, as
long as the appliance is connected to the
electrical power supply, by activating when the
temperature inside the unit drops below
3.5 °C1DQGWXUQVRႇRQFHWKHWHPSHUDWXUH
inside the unit reaches 7 °C1.
1Approximate temperatures
)URVWSURWHFWLRQWKHUPLVWRU
The HD56kWe model has an external
thermistor to control frost protection. It is a
small black indicator located on the bottom
right hand side of the unit, directly underneath
the cover screw (circled below). The frost
protection thermistor needs to be exposed to
the outside air to correctly function—do not
insulate the frost protection circuit will not work
correctly.
6
Appliance location
1Rinnai recommend a maximum pipe run of 10 m.
2Power point can be within the pipe cover if a pipe cover is installed—must comply with AS/NZS Wiring rules. Rinnai DOES NOT
UHFRPPHQGFXWWLQJRႇWKHSOXJDQGKDUGZLULQJDVWKLVZLOOUHTXLUHVSHFLDOLVWWUDGHVWRGLVFRQQHFWWKHXQLWHYHU\WLPHWKHDSSOLDQFHLV
serviced.
This appliance is designed for outdoor installations only. It MUST BE located above ground in open
air with natural ventilation, without stagnant areas, where gas leakage and products of combustion
can be rapidly dispersed by wind and natural convection.
This appliance MUST BE placed as close as possible to the most frequently used hot water
outlet(s) to minimise the delay for hot water delivery1. For installations where the distance between
WKHZDWHUKHDWHUDQGRXWOHWVLVFRQVLGHUDEOHDÀRZDQGUHWXUQV\VWHPFDQEHXVHGWRPLQLPLVHWKH
waiting time for hot water delivery. Alternatively multiple appliances can be strategically placed to
serve outlets with minimal delay.
An AC 230 V, 10 A earthed power point must be provided adjacent2to the appliance. This power
point must be weatherproof. It must be clear of the gas and water connections to the appliance
DQGDOVRWKHÀXHH[KDXVWDQGZDWHUSUHVVXUHUHOLHIYDOYH7KHSRZHUFRUGRIWKHDSSOLDQFHLVP
long.
All appliances MUST BE installed to ensure access can be gained without hazard or undue
GLႈFXOW\IRUPDLQWHQDQFHDQGVHUYLFLQJ6XႈFLHQWFOHDUDQFHVVKDOODOORZDFFHVVDQGUHPRYDORIDOO
serviceable components. Appliances should not be mounted more than 2.5 m above the ground
RUÀRRUOHYHOXQOHVVWKHFXVWRPHUFDQDUUDQJHSHUPDQHQWDQGVDIHDFFHVVRUFDQSURYLGHDQRWKHU
means of safe access.
The appliance MUST BE mounted on a vertical structure with the water and gas connections on
the underside pointing downwards.
/RFDWLRQRIWKHÀXHWHUPLQDO0867%(LQDFFRUGDQFHZLWK6HFWLRQDQG)LJXUHRI$61=
+RUL]RQWDOREVWUXFWLRQV
AS/NZS 5601 states a minimum horizontal clearance of 500 mm between a building structure and
obstruction facing the terminal. At 500 mm the obstruction needs to be the full height of the unit,
as shown below, and not a partial obstruction. A partial obstruction of less than 1 m could result in
ZLQGSXVKLQJWKHÀXHJDVHVEDFNLQWRWKHÀXHWHUPLQDO
500mm
Minimum obstruction
height to be no less than
top of appliance
There MUST be NO partial obstructions to the appliance front cover or any other part of
the appliance casing. This will avoid the appliance from failing to operate under windy
conditions.
IMPORTANT

8
:DWHUGHOLYHU\WHPSHUDWXUH
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 these areas may
be limited to 55 °C or less.
If the appliance is to deliver water primarily for the purposes of personal hygiene in an early
FKLOGKRRGFHQWUHVFKRROQXUVLQJKRPHRUVLPLODUIDFLOLW\DVGH¿QHGLQ$61=6D
Temperature Limiting Device (TLD), such as a tempering valve may be required, even if the
appliance is set to 55 °C or less. For these types of applications contact Rinnai.
5HTXLUHPHQWVIRU5LQQDL,1),1,7<XQLWVLQVWDOOHGZLWKRXWFRQWUROOHUV
Diagram 1 - 55 °C Appliance
55 °C
Diagram 2 - Not a 55 °C Appliance
(TLD = Temperature Limiting Device)
+RW &ROG *DV
Ensuite
Laundry
Bathroom
Kitchen
+RW &ROG *DV
Kitchen
> 55 °C
Laundry
> 55 °C
Ensuite
< 55 °C
Bathroom
< 55 °C
TLD
When the Rinnai INFINITY is set to deliver water at a temperature higher than 55 °C, it will be
QHFHVVDU\WR¿WD7HPSHUDWXUH/LPLWLQJ'HYLFHIRUGHOLYHU\WRDUHDVXVHGIRUWKHSXUSRVHVRI
personal hygiene.

9
Water controller installation
7KHPD[LPXPQXPEHURIFRQWUROOHUVWKDWFDQEH¿WWHGLVIRXUUHIHUZDWHUFRQWUROOHUFRQ¿JXUDWLRQV
section below.
General information
Other manufacturers water controllers are NOT compatible with Rinnai water heaters. Water
controllers MUST NOT be used with any solar boost water heater. Rinnai water controllers bought
in from other countries are not compatible with Rinnai appliances sold in New Zealand.
Water controllers and transceivers (for those with wireless controllers) DO NOT contain serviceable
parts and must only be serviced by an authorised person.
Master controller
Only one master controller can be designated as a ‘master’ water controller. This water controller
is normally used in the kitchen. The remaining controllers are ‘sub-controllers’ and are for use
in bathrooms, toilets, and laundries. The temperature limit for all sub-controllers is 50 °C, this is
a safety feature, to reduce the risk of burns in these areas. A master controller MUST NOT be
installed in a bathroom.
:DWHUFRQWUROOHUFRQILJXUDWLRQV
• A maximum of four Compact controllers (MC-601) can be fitted.
• Only one master controller can be installed. This can be a Kitchen Deluxe1(MC-100V), or any
other Compact controller (MC-601).
1When a Kitchen Deluxe controller is fitted, it will always function as a master controller, this is the default setting and cannot be
changed.
• In addition to a master controller, up to three additional controllers can be fitted
Controller location
• Do not install water controllers near a heat source, such as a cook top, stove or oven. Heat
steam, smoke, and hot oil may cause damage.
• Do not install water controllers outdoors unless protection from water/dust ingress and sunlight
are provided.
• Do not install water controllers in direct sunlight.
• Do not install water controllers against a metal wall unless the wall is earthed in accordance
with AS/NZS 3000.
• Water controllers must not be installed where chemicals such as benzene, alcohol, turpentine,
hydrogen sulphide, ammonia, chlorine or other similar chemicals are in use.
The water controller is water resistant, however excessive exposure to water may result in
damage. Durability is improved when positioned OUTSIDE the shower recess.
• Avoid direct exposure to water or steam as these may cause the controller to malfunction.
• Water controllers must be installed in shaded and clean locations. They should be fitted out of
reach of children (suggested height 1.5 m from the floor), and installed at least 400 mm above
the highest part of a sink, basin or bath.
When cleaning your water controller use only a damp cloth and mild detergent.
8
:DWHUGHOLYHU\WHPSHUDWXUH
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 these areas may
be limited to 55 °C or less.
If the appliance is to deliver water primarily for the purposes of personal hygiene in an early
FKLOGKRRGFHQWUHVFKRROQXUVLQJKRPHRUVLPLODUIDFLOLW\DVGH¿QHGLQ$61=6D
Temperature Limiting Device (TLD), such as a tempering valve may be required, even if the
appliance is set to 55 °C or less. For these types of applications contact Rinnai.
5HTXLUHPHQWVIRU5LQQDL,1),1,7<XQLWVLQVWDOOHGZLWKRXWFRQWUROOHUV
Diagram 1 - 55 °C Appliance
55 °C
Diagram 2 - Not a 55 °C Appliance
(TLD = Temperature Limiting Device)
+RW &ROG *DV
Ensuite
Laundry
Bathroom
Kitchen
+RW &ROG *DV
Kitchen
> 55 °C
Laundry
> 55 °C
Ensuite
< 55 °C
Bathroom
< 55 °C
TLD
When the Rinnai INFINITY is set to deliver water at a temperature higher than 55 °C, it will be
QHFHVVDU\WR¿WD7HPSHUDWXUH/LPLWLQJ'HYLFHIRUGHOLYHU\WRDUHDVXVHGIRUWKHSXUSRVHVRI
personal hygiene.

10
+'N:HFRQWUROOHUFRPPXQLFDWLRQFDEOHV
Wired water controllers operate at an extra low voltage (12 V DC) which is supplied from the water
heater, a 10 m long communication cable is supplied for connection to the water heater. Only
Rinnai supplied communication cables may be used.
7KHZDWHUKHDWHUHQGRIWKHFDEOHVLV¿WWHGZLWKVSDGHWHUPLQDOV2QO\WZRSDLUVRIFDEOHVIRXU
spade connectors in total) may be terminated. When attaching three or four cables it is necessary
to join the cable terminators as shown below.
)RUHDFKSDLUFXWRႇWKHH[LVWLQJVSDGHFRQQHFWRUVDQGUHWHUPLQDWHHDFKSDLULQWRDQHZVSDGH
connector (A). Spade connectors are available from your local electrical component retailer
A
Single cables can be used
when terminating up to two
communication cables.
Paired cables are to be used
when terminating three or four
communication cables.
&RQQHFWLQJRQHRUWZRFRPPXQLFDWLRQFDEOHV
)ROORZVWHSVRQHWKURXJK¿YHEHORZWRWHUPLQDWHWKHFDEOHVWRWKHZDWHUKHDWHU
&RQQHFWLQJWKUHHRUIRXUFRPPXQLFDWLRQFDEOHV
7RFRQQHFWWKUHHRUIRXUFDEOHVVHSDUDWHDOOWKHFDEOHVWREH¿WWHGLQWRSDLUV
A
A
A
When
terminating
three cables
When
terminating four
cables
)ROORZVWHSVRQHWKURXJK¿YHEHORZWRWHUPLQDWHWKHMRLQHGFDEOHSDLUVWRWKHZDWHUKHDWHU
1. Isolate the power supply by switching the power point
RႇDQGUHPRYLQJWKHSRZHUSOXJRIWKHZDWHUKHDWHU
from the electric power socket.
2. Removing the retaining screw of the cable connector
at the base of the unit.
3. Swing the cable connector door open and thread the
cable through the weather seal of the cable access
KROHDOORZLQJVXႈFLHQWFDEOHOHQJWKVRWKDWWKHVKHDWK
of the cable can be secured with the cable clamp
supplied with the transceiver.
4. Loosen the screw terminals and connect the cable
spade connectors to these terminals and re-tighten.
Polarity is not important, either wire colour can be
connected to either terminal.
5. Return the cable connector to the original position,
taking care not to damage the cable wires in the
process, and replace the retaining screw.
Retaining
screw
Cable access
Cable clamp

11
Commissioning
AS/NZS 5601.1, clauses 2.6.8 and 6.11.2. states that every part of the gas installation shall be
commissioned prior to initial use. It is the installer’s responsibility to ensure all current AS/NZS
5601 requirements are met.
The appliance must be tested after installation. Ensure the building occupants do not have
access to the hot water outlets during this procedure.
Please note
The Rinnai INFINITY HD56kWe model comes with a factory preset outlet temperature of 55°C. The
high and low gas operating pressures are also factory preset. Under normal operating conditions
the operating pressures do not require adjustment during installation. Make adjustments ONLY if
the unit is not operating correctly and all other possible causes for incorrect operation have been
eliminated.
Inlet supply pressure MUST BE checked and set within the operating parameters of the appliance
in all instances. If the appliance cannot be adjusted to perform correctly call 0800 RINNAI (0800
746 624) for assistance.
Commissioning steps
1Flush water pipes and gas line %HIRUH¿QDOFRQQHFWLRQRIWKHZDWHUKHDWHUÀXVKWKHJDVKRWDQGFROGZDWHU
supply lines. Swarf in the gas or water supplies may cause damage, a common
problem, which is not covered by warranty.
2Connect the gas line
3Purge the gas line of air
4Final connection test
5Check supply pressure Operate ALL other gas appliances at their maximum rate. With all gas
appliances on maximum the supply pressure must read between 1.13-3.0 kPa
on Natural Gas and 2.75-3.0 kPa on LPG. If the supply pressure is lower, the
JDVVXSSO\LVLQDGHTXDWHDQGWKHDSSOLDQFHZLOOQRWRSHUDWHWRVSHFL¿FDWLRQ
It is the installer’s responsibility to check the gas meter, service regulator and
pipe work for correct operation and sizing, and rectify as required.
6PCB settings checked If factory default settings are changed check the PCB to ensure it is set
correctly.
7Operate and check for gas leaks Replace the appliance front cover otherwise the unit won’t operate correctly,
and operate and test for gas leaks using an electronic leak detector.
8Operational test &RQ¿UPWKHZDWHUÀRZDQGKRWZDWHUGHOLYHU\WHPSHUDWXUHXVLQJD
WKHUPRPHWHU,IZDWHUFRQWUROOHUVDUH¿WWHGLWLVQHFHVVDU\WRWHVWWKHLU
operation through the complete range of functions, refer separate instructions
provided with the water controllers.
9&KHFNFROGZDWHULQOHW¿OWHU ,QVSHFWDQGFOHDQWKHZDWHULQOHW¿OWHU7KLVPD\QHHGWREHUHSHDWHGWRHQVXUH
WKH¿OWHUUHPDLQVFOHDUHVSHFLDOO\RQQHZLQVWDOODWLRQV,I\RXIHHOWKHFXVWRPHU
is capable of doing this then show them how to inspect and clean the water
¿OWHUDVZHOO
10 Customer handover After testing is completed, explain to the customer the function and operation
RIWKHZDWHUKHDWHUDQGZDWHUFRQWUROOHUVLI¿WWHG$OVRWDONWRWKHPDERXW
• The gas, power, and water connections
• How frost protection works
• Procedure for draining the water heater
• :KHUHWR¿QGWKHGDWDSODWH
• Maintenance and servicing
If the customer is not there try and contact them by phone to discuss these
important points. Ensure the installer details section is completed in the
operation guide, the commissioning checklist has been completed and signed,
and that the guide and checklist are left with the customer.
WARNING
10
+'N:HFRQWUROOHUFRPPXQLFDWLRQFDEOHV
Wired water controllers operate at an extra low voltage (12 V DC) which is supplied from the water
heater, a 10 m long communication cable is supplied for connection to the water heater. Only
Rinnai supplied communication cables may be used.
7KHZDWHUKHDWHUHQGRIWKHFDEOHVLV¿WWHGZLWKVSDGHWHUPLQDOV2QO\WZRSDLUVRIFDEOHVIRXU
spade connectors in total) may be terminated. When attaching three or four cables it is necessary
to join the cable terminators as shown below.
)RUHDFKSDLUFXWRႇWKHH[LVWLQJVSDGHFRQQHFWRUVDQGUHWHUPLQDWHHDFKSDLULQWRDQHZVSDGH
connector (A). Spade connectors are available from your local electrical component retailer
A
Single cables can be used
when terminating up to two
communication cables.
Paired cables are to be used
when terminating three or four
communication cables.
&RQQHFWLQJRQHRUWZRFRPPXQLFDWLRQFDEOHV
)ROORZVWHSVRQHWKURXJK¿YHEHORZWRWHUPLQDWHWKHFDEOHVWRWKHZDWHUKHDWHU
&RQQHFWLQJWKUHHRUIRXUFRPPXQLFDWLRQFDEOHV
7RFRQQHFWWKUHHRUIRXUFDEOHVVHSDUDWHDOOWKHFDEOHVWREH¿WWHGLQWRSDLUV
A
A
A
When
terminating
three cables
When
terminating four
cables
)ROORZVWHSVRQHWKURXJK¿YHEHORZWRWHUPLQDWHWKHMRLQHGFDEOHSDLUVWRWKHZDWHUKHDWHU
1. Isolate the power supply by switching the power point
RႇDQGUHPRYLQJWKHSRZHUSOXJRIWKHZDWHUKHDWHU
from the electric power socket.
2. Removing the retaining screw of the cable connector
at the base of the unit.
3. Swing the cable connector door open and thread the
cable through the weather seal of the cable access
KROHDOORZLQJVXႈFLHQWFDEOHOHQJWKVRWKDWWKHVKHDWK
of the cable can be secured with the cable clamp
supplied with the transceiver.
4. Loosen the screw terminals and connect the cable
spade connectors to these terminals and re-tighten.
Polarity is not important, either wire colour can be
connected to either terminal.
5. Return the cable connector to the original position,
taking care not to damage the cable wires in the
process, and replace the retaining screw.
Retaining
screw
Cable access
Cable clamp

12
3&%LQWHUIDFHDQGGLSVZLWFKVHWWLQJV
Cascade IN
8.8.8
ON
1234
Dipswitch detail viewed from front
ON
1234
Data transfer LED indicator
PB1: Push button 1, black, data transfer button for PCB replacement
PB2: Push button 2, red, MODE button, places the PCB into programming mode
PB3: Push button 3, black, MENU button, cycles through available menus. For forced
combustion rate setting procedure, raises the gas pressure.
PB4: Push button 4, black, VALUE button, cycles through available menu values. For forced
combustion rate setting procedure, lowers the gas pressure.
PB5: Push button 5, black, forcecd high / low gas selection rate button
DipSW: High altitude setting (N/A for NZ), factory default—all switches are in the OFF
position
LED digital display: Displays MENU setting, VALUE setting and forced low / high
(FL or FH)
Cascade OUT
Communication interface socket: For data transfer, REU-EZC, and REU-MSB
REU-EZC, REU-OPU3 (S-BMS)
'DWDWUDQVIHUEHWZHHQ3&%¶V
It is possible to transfer the settings of one PCB to another, via the
use of the data transfer function and a communication cable. The data
function is used primarily when a PCB changeover is required. The
PCB replacement and data transfer MUST BE performed by a licensed
JDV¿WWHU
Consult the relevant Rinnai INFINITY service manual or contact Rinnai
regarding PCB changeover and data transfer.
Basic operation of the PCB interface
• To place PCB into programming mode, press and hold PB2 (red button) until the LED digital
display shows ‘01A’ then release. Upon release the current set value will be displayed.
• To change to another menu, press PB3, each press of the button will select the next available
menu.
• To alter a value, press PB4, each press of this button will select the next available value and
SET the value.
• To exit the programming mode press and hold PB2 (red button) until the LED digital display
goes blank.
Note:
If no buttons are pressed the PCB will automatically exit programming mode after 10 minutes, or
when setting the gas pressure after 20 minutes. To exit programming mode at any time press and
hold PB2 (red button) until the LED digital display goes blank. Exiting program mode sets any of
the values last viewed as the new current value.

13
Appliance programming parameters
0HQX 0HQXGHVFULSWLRQ 9DOXH
AECGE)HJ
Factory default settings
01 Fixed / max. temperature
(refer Table 2 below)
55 °C n/a n/a n/a n/a n/a n/a n/a
02 55 °C 75 °C 65 °C 60 °C 50 °C 42 °C 75 °C 85/75 °C
03 Country AU/NZ n/a n/a n/a n/a n/a n/a n/a
06 Gas type n/a ULPG NG n/a n/a n/a n/a n/a
07 Auto reset OFF ON n/a n/a n/a n/a n/a n/a
08 50 °C delivery adjustment temp. 0N/A to NZ—Australian models only
10 Post fan time (seconds) 65 120 240 480 n/a n/a n/a n/a
11 2))ZDWHUÀRZUDWH +3 °C +6 °C n/a n/a n/a n/a n/a n/a
14 Units in standby (EZ connect) 21 n/a n/a n/a n/a n/a n/a
15 Cascades cable connection Secondary
(2-24)
Primary n/a n/a n/a n/a n/a n/a
16 Units in standby 12 3 4 5 6 n/a n/a
21 Low activation mode (ON-OFF control) ON OFF n/a n/a n/a n/a n/a n/a
22 Error code 14 (OHS) lockout OFF ON n/a n/a n/a n/a n/a n/a
7DEOH7HPSHUDWXUHVHWWLQJV
0HQX
A b
No controllers With control-
lers
No controllers With control-
lers
Fixed temp. Max. set
temp.
Fixed temp. Max. set
temp.
0HQX

A55 °C 55 °C 55 °C 55 °C
b 75 °C 75 °C 55 °C 75 °C
C 65 °C 65 °C 55 °C 65 °C
d 60 °C 60 °C 55 °C 60 °C
E 50 °C 50 °C 50 °C 50 °C
F 42 °C 42 °C 42 °C 42 °C
H 85 °C 75 °C 40 °C 40 °C
J 85 °C 75 °C 70 °C 75 or 85 °C
The table below lists all the available programming menus and parameters. Not all menus are
VSHFL¿FWRDSSOLDQFHFRPPLVVLRQLQJ
7DEOH3URJUDPPLQJPHQXV
)DFWRU\SUHVHWWHPSHUDWXUH
The Rinnai HD56kWe will come factory preset to 55 °C (01A + 02A), the default setting. If this
needs changing, refer Table 2 above.
$XWRUHVHW
Relates to the status of the unit should a power disruption occur. For both settings 07A and 07b, if
WKHXQLWLVRQZLWKD¿[HGWHPSHUDWXUHVHWWLQJEHIRUHDSRZHUGLVUXSWLRQRFFXUVWKHXQLWZLOODXWR
reset to come back on when the power is restored. The A & b settings are only used if controllers
are connected. Contact Rinnai if you need more information.
10 Post fan time
To reduce the HEX temperature after combustion to mitigate lime scale buildup.
12
3&%LQWHUIDFHDQGGLSVZLWFKVHWWLQJV
Cascade IN
8.8.8
ON
1234
Dipswitch detail viewed from front
ON
1234
Data transfer LED indicator
PB1: Push button 1, black, data transfer button for PCB replacement
PB2: Push button 2, red, MODE button, places the PCB into programming mode
PB3: Push button 3, black, MENU button, cycles through available menus. For forced
combustion rate setting procedure, raises the gas pressure.
PB4: Push button 4, black, VALUE button, cycles through available menu values. For forced
combustion rate setting procedure, lowers the gas pressure.
PB5: Push button 5, black, forcecd high / low gas selection rate button
DipSW: High altitude setting (N/A for NZ), factory default—all switches are in the OFF
position
LED digital display: Displays MENU setting, VALUE setting and forced low / high
(FL or FH)
Cascade OUT
Communication interface socket: For data transfer, REU-EZC, and REU-MSB
REU-EZC, REU-OPU3 (S-BMS)
'DWDWUDQVIHUEHWZHHQ3&%¶V
It is possible to transfer the settings of one PCB to another, via the
use of the data transfer function and a communication cable. The data
function is used primarily when a PCB changeover is required. The
PCB replacement and data transfer MUST BE performed by a licensed
JDV¿WWHU
Consult the relevant Rinnai INFINITY service manual or contact Rinnai
regarding PCB changeover and data transfer.
Basic operation of the PCB interface
• To place PCB into programming mode, press and hold PB2 (red button) until the LED digital
display shows ‘01A’ then release. Upon release the current set value will be displayed.
• To change to another menu, press PB3, each press of the button will select the next available
menu.
• To alter a value, press PB4, each press of this button will select the next available value and
SET the value.
• To exit the programming mode press and hold PB2 (red button) until the LED digital display
goes blank.
Note:
If no buttons are pressed the PCB will automatically exit programming mode after 10 minutes, or
when setting the gas pressure after 20 minutes. To exit programming mode at any time press and
hold PB2 (red button) until the LED digital display goes blank. Exiting program mode sets any of
the values last viewed as the new current value.

14
2))ZDWHUÀRZUDWH
2))ZDWHUÀRZUDWHWKHWHPSHUDWXUHRIWKHRXWJRLQJKRWZDWHULVPRQLWRUHGE\DQLQEXLOWVHQVRU,I
the temperature of the outgoing hot water rises more than 3 °C (default, or 6 °C if 11b) above the
selected temperature shown on the digital monitor or the preset limit, when water controllers are
¿WWHGWKHEXUQHUZLOODXWRPDWLFDOO\JRRXW7KLVLVDVDIHW\IHDWXUH
Please note: To change menu 11, menu 21 needs to be OFF (21b).
14 EZ connect
N/A to NZ, this cable is not stocked.
&DVFDGHVFDEOHFRQQHFWLRQ
With the use of a cascade cable (one cable is needed for each water heater) up to 24 water
heaters can be electronically connected. This connection will rotate water heater operation to
ensure equal usage among the system and enables all water heaters connected to modulate
operation and function as one heating source.
Primary; select the water heater intended to be the primary water heater and set to 15b.
8QLWVLQVWDQGE\
Setting only available if 15b is selected. Adjust the parameter setting of the primary unit to set
WKHQXPEHURIZDWHUKHDWHUVLQVWDQGE\6WDQGE\XQLWVZLOOPDLQWDLQRSHUDWLRQZLWKWKHZDWHUÀRZ
FRQWUROYDOYHLQWKHRSHQSRVLWLRQ7KHUHPDLQLQJZDWHUKHDWHUVZLOOPDLQWDLQWKHZDWHUÀRZFRQWURO
valve in the closed position.
/RZDFWLYDWLRQPRGH
Under normal circumstances this will not need adjustment. It is only used in counties where
the incoming water temperature is high and the set temperature of the unit is low. This function
LQFUHDVHVWKHZDWHUÀRZUDWHWRDFWLYDWHWKHZDWHUKHDWHU7KLVSURJUDPLVRQO\DYDLODEOHZKHQWKH
temperature is set 60 °C or below.
(UURUFRGH
If the unit experiences error 14 (HEX water >97 °C, this determines how the error is handled:
• 22A OFF (default), the water heater resets and operation will resume once the heat exchanger
ZDWHUWHPSHUDWXUHGURSVEHORZ&7RUHVHWWKLVHUURUFRGHZDWHUÀRZUDWHQHHGVWREH
]HUR²DOOWDSVQHHGWREHWXUQHGRႇ
• 22b ON, if error 14 occurs the unit will not restart. A service person is required to determine
that there is no fault with the unit, this is a safety feature, and is SUHGRPLQDQWO\XVHGLQ
FRPPHUFLDODSSOLFDWLRQVZKHUHWKH,1),1,7<LVIHHGLQJDVWRUDJHWDQN2QO\DTXDOL¿HG
VHUYLFHSHUVRQFDQUHVHWWKHXQLWE\SXVKLQJ3%DQG3%VLPXOWDQHRXVO\IRUPRUHWKDQ¿YH
seconds.
22b ON is used where a HD56kWe is combined with a storage tank and the relief
capacity of the storage tank is less than 56 kW. Where this is the case the attending
service person MUST reset the parameter back to 22b ON and check this before
leaving the site.
IMPORTANT

14
2))ZDWHUÀRZUDWH
2))ZDWHUÀRZUDWHWKHWHPSHUDWXUHRIWKHRXWJRLQJKRWZDWHULVPRQLWRUHGE\DQLQEXLOWVHQVRU,I
the temperature of the outgoing hot water rises more than 3 °C (default, or 6 °C if 11b) above the
selected temperature shown on the digital monitor or the preset limit, when water controllers are
¿WWHGWKHEXUQHUZLOODXWRPDWLFDOO\JRRXW7KLVLVDVDIHW\IHDWXUH
Please note: To change menu 11, menu 21 needs to be OFF (21b).
14 EZ connect
N/A to NZ, this cable is not stocked.
&DVFDGHVFDEOHFRQQHFWLRQ
With the use of a cascade cable (one cable is needed for each water heater) up to 24 water
heaters can be electronically connected. This connection will rotate water heater operation to
ensure equal usage among the system and enables all water heaters connected to modulate
operation and function as one heating source.
Primary; select the water heater intended to be the primary water heater and set to 15b.
8QLWVLQVWDQGE\
Setting only available if 15b is selected. Adjust the parameter setting of the primary unit to set
WKHQXPEHURIZDWHUKHDWHUVLQVWDQGE\6WDQGE\XQLWVZLOOPDLQWDLQRSHUDWLRQZLWKWKHZDWHUÀRZ
FRQWUROYDOYHLQWKHRSHQSRVLWLRQ7KHUHPDLQLQJZDWHUKHDWHUVZLOOPDLQWDLQWKHZDWHUÀRZFRQWURO
valve in the closed position.
/RZDFWLYDWLRQPRGH
Under normal circumstances this will not need adjustment. It is only used in counties where
the incoming water temperature is high and the set temperature of the unit is low. This function
LQFUHDVHVWKHZDWHUÀRZUDWHWRDFWLYDWHWKHZDWHUKHDWHU7KLVSURJUDPLVRQO\DYDLODEOHZKHQWKH
temperature is set 60 °C or below.
(UURUFRGH
If the unit experiences error 14 (HEX water >97 °C, this determines how the error is handled:
• 22A OFF (default), the water heater resets and operation will resume once the heat exchanger
ZDWHUWHPSHUDWXUHGURSVEHORZ&7RUHVHWWKLVHUURUFRGHZDWHUÀRZUDWHQHHGVWREH
]HUR²DOOWDSVQHHGWREHWXUQHGRႇ
• 22b ON, if error 14 occurs the unit will not restart. A service person is required to determine
that there is no fault with the unit, this is a safety feature, and is SUHGRPLQDQWO\XVHGLQ
FRPPHUFLDODSSOLFDWLRQVZKHUHWKH,1),1,7<LVIHHGLQJDVWRUDJHWDQN2QO\DTXDOL¿HG
VHUYLFHSHUVRQFDQUHVHWWKHXQLWE\SXVKLQJ3%DQG3%VLPXOWDQHRXVO\IRUPRUHWKDQ¿YH
seconds.
22b ON is used where a HD56kWe is combined with a storage tank and the relief
capacity of the storage tank is less than 56 kW. Where this is the case the attending
service person MUST reset the parameter back to 22b ON and check this before
leaving the site.
IMPORTANT

Tel: [phone]
http://www.youtube.com/rinnainz
http://facebook.com.rinnainz
Rinnai INFINITY HD56kWe installation guide 01-22
co.nz
Installation guide
07000012393681
U359-0811(00)
REU-AM3237(NZ)