Rinnai HD49kWe User manual

INFINITY HD and A28i VCM continuous flow water heaters
Installation guide
HD49kWe external (REU-VCM2837WC-ZK)
HD49kWi internal (REU-VCM2837FFC-ZK)
A28i internal (REU-VCM2837FF-ZK)

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.
A28i is not suitable for commercial applications.
Appliance must be installed, commissioned and serviced by an
authorised person, being in New Zealand a licensed gastter.
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]
Fax: [phone]
Email: [email protected]
Web: rinnai.co.nz
youtube.com/rinnainz
facebook.com/rinnainz

Specication .........................................................4
Connections..........................................................5
HD49kWe external dimensions (mm)...................6
HD49kWi and A28i internal dimensions (mm)......7
Appliance location ................................................8
General installation information............................9
External unit horizontal obstructions.....................10
Water delivery temperature ..................................10
Flued (internal) water heaters...............................11
Water controller installation ..................................12
Commissioning.....................................................15
PCB interface and dip switch settings ..................16
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.
These instructions apply only to the continuous ow water heater models listed on
the front of this guide.

4
Specication
Designed and made in Japan, the Rinnai INFINITY REU-VCM models are continuous ow gas
hot water heaters with inbuilt frost protection. They have electronic ignition and require electricity
to operate. The internal units are a room sealed appliances. The internal units have an inbuilt
controller on the front panel, the external unit has a status monitor.
The INFINITY HD VCM units are factory preset to 75 °C, but can be set to deliver higher
temperatures, up to 85 °C, making them ideal for commercial applications. The INFINITY A28i is
factory preset to 55 °C and is suitable for residential applications only.
Specication summary
• Colour Silver (HD), white (A28i)
• Input 11-210 MJ/h
• Output 48.8 kW
• E󰀩ciency 83.5 %
Suitability
HD49 units are primarily designed for
commercial applications, but can be used for
larger hot water capacity residential projects. The
A28i is suitable for residential applications only.
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.
Capacity
Hot water capacity 1.4-37 litres per minute.
Nominal water capacity 28 litres per minute at a
25° rise (1680 L/h).
Connections
Hot water outlet R¾ (20 mm)
Cold water inlet R¾ (20 mm)
Gas supply R¾ (20 mm)
Exhaust system: Forced ue
Ignition system: Direct electronic ignition.
Line pressures
NG 1.13-3.0 kPa
LPG 2.75-3.0 kPa
Line pressure maximum
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
• HD49kWe IPX5
• HD49kWi / A28i IPX2
Power consumption
HD49kWe HD49kWi / A28i
Normal 66 W 95 W
Standby 2 W 2 W
Antifrost 104 W 120 W
Noise level
Internal units: 54 dB(A)
External unit: 52 dB(A)
NOx af: 40 ppm
Safety devices
• Flame failure
• Boil-dry protection
• Overheat protection (OHS)
• Fusible link
• Pressure relief valve
• Combustion fan rpm check
Water supply
Nominal operating pressure: 220-1000 kPa
Minimum operating pressure: 10 kPa
Minimum water ow: 1.5 litres per minute
Weights
Internal - 21 kg External - 20 kg
Internal model ueing
The internal HD49kWi and A28i models MUST
USE Rinnai ue components—use of non
approved ue components will result in a
dangerous installation.
A Rinnai ue system must be installed in
accordance with the Rinnai ue installation
manual provided with the ue kit and/or
components. Refer to the ue manual for more
information and ue conguration options.

5
Connections
74.5 (Gas)
45.6 (Cold)
66.6 (Hot)
162 (Elec.)
5
110
27
89
Gas connection
Cable access
Cold water inlet
Hot water outlet
Power supply cable
89 (Gas)
60.1 (Cold)
81.1 (Hot)
162 (Elec.)
5
27
110 89
Hot water outlet Cold water inlet
Cable access Power supply cable
Gas connection
Service connection points
An approved full ow isolation valve and disconnection union MUST BE tted to the cold water
inlet. A non-return valve is not required unless stipulated by local regulations.
Isolation valves MUST NOT be tted directly to the appliance.
It may be necessary to t a temperature limiting device for delivery to areas used primarily for the
purposes of personal hygiene, refer page on ‘Water delivery temperature’ for more information.
Purge gas and cold water supply lines to remove air and swarf before nal connection. Swarf in the
gas or water supplies may cause damage, a common problem, which is not covered by warranty.
HD49kWe external
HD49kWi and A28i internal

6
HD49kWe external dimensions (mm)
357
29
226
57
315
14.3
289
56
583
104.5
29.5
41
7.7 235
A579
608
632 (wall installation pitch)
4× 13×10.1
long hole
80
130 4× 5.5×10.5
long hole
16
18
28
35
Adimension
Gas 36.4
Cold 46.1
Hot 36.3
Cable access 26.2

7
HD49kWi and A28i internal dimensions (mm)
357
583
74.6
70.1
692.9
83.2
10～43 (variable)
95.3
579
235
67.8
81
128
64.6
41
A
Drain pipe 5/8
4× 5.5×10.5
long hole
80
180
634.2
614.1(wall installation pitch)
4× 13×5.7
long hole
18
22
28
35
130
Adimension
Gas 36.4
Cold 46.1
Hot 36.3
Cable access 26.2

8
Appliance location
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 the water heater and outlets
is considerable, a ow and return system can
be used to minimise the 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
and also the ue exhaust and water pressure
relief valve. The power cord of the appliance is
1.5 m long.
All appliances MUST BE installed to ensure
access can be gained without hazard or
undue di󰀩culty for maintenance and servicing.
Su󰀩cient clearances shall allow access
and removal of all serviceable components.
Appliances should not be mounted more than
2.5 m above the ground or oor level unless
the customer can arrange permanent and safe
access, or can provide another means of safe
access.
The appliance MUST BE mounted on a vertical
structure with the water and gas connections
on the underside pointing downwards.
Location of the ue terminal MUST BE in
accordance with Section 6 and Figure 6.2 of
AS/NZ 5601.
Outdoor (external) models
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.
Indoor (internal) models
This appliance is for indoor installations only.
They may be installed in an enclosure if the
requirements of AS/NZS 5601.1 are satised.
An enclosure is dened as a compartment,
enclosed area or partitioned o󰀨 space primarily
used for the installation of the appliance.
• DO NOT install in areas where
contaminated air is present.
• Consider, before installation, where air has
the ability to travel within a building.
• Where possible, install the heater in
a sealed space so that it is free of
contaminated indoor air.
It is important a suitable drained catch pan
is tted where damage could be caused by
discharge from the water heater. Provision
must be made for safe disposal of any leaking
water to an external location.
This appliance MUST BE used with the
appropriate Rinnai ue system.
1Rinnai recommend a maximum pipe run of 10 m.
2 Power point can be within the pipe cover if a pipe cover is installed—must comply with AS/NZS Wiring rules

9
General installation information
Securing the Rinnai INFINITY
The wall structure on which units are mounted
MUST BE capable of supporting the weight
of the appliance (21 kg) and associated pipe
work.
Ensure that suitable xing screws or bolts
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
be secured with appropriate xings.
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
If the gas pipe sizing is insu󰀩cient the
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
must be specied for this gas rate.
An approved sizing chart such as the one in
AS/NZS 5601 should be used. Refer p.4 for
gas consumption details.
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 e󰀩ciency.
Water supply
The appliance is intended to be permanently
connected to the water mains.
Refer p.4 for operational water pressure
limitations. Approved pressure limiting valves
may be required if the maximum rated water
supply pressures are exceeded. To achieve the
rated ow, the minimum water supply pressures
must be met.
The water heaters will operate at lower
pressures but will not achieve the rated ow.
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
lter or strainer is required in the water supply
to the water heater to prevent unwarranted
damage and loss of performance.
Frost protection
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, and turns o󰀨 once the temperature
inside the unit reaches 7 °C1.
1Approximate temperatures

10
External unit - horizontal obstructions
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
wind pushing the ue gases back into the ue terminal.
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
Water delivery temperature
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
childhood centre, school, nursing home or similar facility as dened in AS/NZS 3500.4, a
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.
Requirements for Rinnai INFINITY units installed without controllers
Diagram 1 - 55 °C Appliance
55 °C
Diagram 2 - Not a 55 °C Appliance
(TLD = Temperature Limiting Device)
Hot Cold Gas
Ensuite
Laundry
Bathroom
Kitchen
Hot Cold Gas
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
necessary to t a Temperature Limiting Device for delivery to areas used for the purposes of
personal hygiene.

11
Flued (internal) water heaters
The HD49kWi and A28i internal water heaters MUST be tted with a Rinnai
FFSS ue system.
The chart below highlights the maximum ue length and number of bends. It
also shows the di󰀨erence between a short and long ue.
Flue length No bends One bend Two bends Three bends Four bends
1 m
2 m
3 m
4 m
5 m
6 m
7 m
8 m
9 m
10 m
11 m
12 m
13 m
14 m
15 m
Short ue
Long ue
Not allowed
If the ue length falls within the ‘Long ue’ category the ue settings MUST BE changed
on the PCB. If this is not done the unit will not operate correctly and may shut down. For
more information refer to p.18, and to the data plate on the side of the appliance.
Condensate
A condensate trap kit (FFSSCOND) is required for ue lengths over 1.5 m. If ueing less than
1.5 m, the ue spigot on top of the unit is capped using the drain cap tube supplied with the unit.
The drain cap is only removed if the condensate kit is connected.
The condensate trap collects any condensate from the ue and prevents condensate from entering
the water heater and causing damage.
Condensate is a by-product of gas combustion and is mildly acidic. For this reason copper tube
and ttings must not be used as it will corrode. Instead Rinnai recommends plastic pipe and ttings
such as UPVC or PE.
IMPORTANT

12
Water controller installation
The maximum number of controllers that can be tted to the HD49kWe external model is four,
and three for the HD49kWi and A28i internal models (one connection is taken up with the inbuilt
controller on the front panel), refer water controller congurations 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.
Water controller configurations
• HD49kWe: A maximum of four Compact controllers (MC-601) can be fitted.
• HD49kWi / A28i: A maximum of three 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 to an external
model, and two for the internal models.
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.

13
Communication cables
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.
Connecting communication cables to the mini-plug
DO NOT attempt to connect water controller cables to the mini-plug when it is plugged
into the PCB unless the power to the water heater is switched OFF, otherwise damage to
electrical components may occur.
Water controllers are connected to the PCB by a dedicated pre-wired mini-plug.
Standard electrical cable connectors can be used to terminate the water controller wires to those
on the mini-plug. The existing spade connectors, of the communication cables, will need to be
removed prior to termination. Controllers are not polarity sensitive, however to avoid confusion it is
recommended that like coloured wires be terminated together.
CAUTION
Electrical connectors
(not supplied)
Pre-wired mini-plug
(supplied)
Communications cable
MC-91, MC-601, BC-100V
Communications cable
MC-100V, wireless controller
Connecting communication cables to the PCB (refer image on next page)
DO NOT attempt to connect the mini-plug or water controller cables to the water heater unless the
power to the water heater is switched OFF, otherwise damage to electrical components may occur.
1. Isolate the power supply by switching the power point off and removing the water heater plug
from the power socket.
2. Remove the front cover of the appliance.
3. Insert the mini-plug and the connected water controller cables through the cable access at
the base of the appliance. Ensure the cable connectors are located inside the appliance for
protection.
4. Locate the PCB (bottom right of the appliance), and carefully rotate the plastic safety cover out
of the way.
5. Locate the accessory port socket (bottom front of PCB).
6. Plug the mini-plug into the accessory port socket, the plug and socket are keyed so that they
can only be plugged into the one direction).
7. Proceed with the water controller installation and connect the communication cables to the
controllers.

14
Cable access
PCB
Controller cable connection
Below image shows
the outdoor unit
Connecting communication cables to the PCB

15
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 HD VCM models come with a factory preset outlet temperature of 75 °C,
and the A28i with a preset 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 Before nal connection of the water heater, ush the gas, hot, and cold water
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
gas supply is inadequate and the appliance will not operate to specication.
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 Conrm the water ow and hot water delivery temperature using a
thermometer. If water controllers are tted, it is necessary to test their
operation through the complete range of functions, refer separate instructions
provided with the water controllers.
9Check cold water inlet lter Inspect and clean the water inlet lter. This may need to be repeated to ensure
the lter remains clear, especially on new installations. If you feel the customer
is capable of doing this then show them how to inspect and clean the water
lter as well.
10 Customer handover After testing is completed, explain to the customer the function and operation
of the water heater and water controllers (if tted). Also talk to them about:
• The gas, power, and water connections
• How frost protection works
• Procedure for draining the water heater
• Where to nd the data plate
• 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

16
PCB interface and dip switch settings
WARNING
The PCB interface and dip switch settings must only be changed by a licensed gastter.
Care must be taken when changing the dip switch settings as they can be easily switched
or bumped into the wrong position. Fully check the operation of the water heater before
leaving including the temperature of the water delivered.
The cover of the water heater will need to be removed to change to settings. As this will
expose live mains voltage wiring please disconnect the power supply before removing
the front cover.
We wish to draw your attention to the requirements of the New Zealand Building Code and
compliance document G12. This requires that water delivered to sanitary xtures be no more than
55 °C. Increasing the water heater set temperature will require that you protect all sanitary xtures
to which the appliance is plumbed with suitable tempering valves or something similar.
Rinnai will accept no liability for issues arising out of use of the use of this information.
If you have any doubts about the performance of the water heater, please contact Rinnai
0800 RINNAI (0800 746 624).
DipSW1
DipSW2
button A
button B
Burner test point

17
Gas pressure setting
1. Attach pressure gauge to burner test point.
2. Turn on the gas and power supplies.
3. If remote controllers are tted, turn the unit ON at the controller and select
a maximum delivery temperature.
4. Open hot water taps fully to reach maximum ow rate—ensure building
occupants do not have access to the hot water outlets during this
procedure.
5. Move SW8 of DipSW1 to the ON position.
6. Push the PCB board button Afor one second.
7. Calibrate forced low combustion (FL on display) using button A (up) and B
(down) as required, refer data plate for gas pressures.
8. Move SW8 of DipSW1 to the OFF position and then back to the ON
position.
9. Push the PCB board button B for one second.
10. Calibrate forced high combustion (FH on display) using button A (up) and
B (down) as required, refer data plate for gas pressures.
11. Move SW8 of DipSW1 to the OFF position.
12. Close hot water taps and turn OFF the gas, and power supply.
13. Remove pressure gauge and replace sealing screw. Turn on the gas, and
power supply.
14. Operate the unit and check for gas leaks.
15. Replace the front cover of the appliance.
5
6
7
8
ON
DipSW1
A
B
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.

18
Factory preset default dip switch settings
Bank SW Description HD49kWi A28i HD49kWe
OFF ON OFF ON OFF ON
DipSW1 1Model and ue setting OFF: Flue length = long
ON: Flue length = short Ext
2
Temperature settings
OFF: Fixed temp
ON: Remote controller
3
See ‘Temperature settings’
table below
75 °C 55 °C 75 °C
4
5
6High altitude OFF: Level 0 (0-900 m)
ON: Level 1 (901-1800 m) L0 L0 L0
7Gas type OFF: LPG
ON: NG LPG NG LPG NG LPG NG
8Forced combustion OFF
DipSW2 1Model and ue setting OFF: Flue length = long
ON: Flue length = short Ext
2Capacity OFF: 28 L
ON: 26 L 28 L 28 L 28 L
3Model and exhaust type OFF: Internal
ON: External Int Int Ext
4Capacity OFF: 28 L
ON: 26 L 28 L 28 L 28 L
5Model and exhaust type OFF: Internal
ON: External Int Int Ext
6High altitude OFF: Level 0 (0-900 m)
ON: Level 1 (901-1800 m) L0 L0 L0
7Gas type OFF: LPG
ON: NG LPG NG LPG NG LPG NG
8Autoreset On On On
Temperature settings °C - DipSW1 SW2-5
DipSW 1 SW2 of DipSW1 = O󰀨 (xed temp.) SW2 of DipSW1= On (with controllers)
SW3 SW4 SW5 No controllers
(xed temp.)
With controllers
(Max. set temp.)
No controllers
(xed temp.)
With controllers
(Max. set temp.)
O󰀨 O󰀨 O󰀨 55 55 55 55
On O󰀨 O󰀨 75 75 55 75
O󰀨 On O󰀨 65 65 55 65
On On O󰀨 60 60 55 60
O󰀨 O󰀨 On 50 50 50 50
On O󰀨 On 42 42 42 42
O󰀨 On On 85 75 40 40
On On On 85 75 70 85

U307-2085(00)
REU-VCM(NZ)
Rinnai.co.nz Installation guide
Tel: [phone]
http://www.youtube.com/rinnainz
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Rinnai INFINITY REU-VCM installation guide 01-21
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