Rinnai INFINITY N56kWi User manual

INFINITY N56kWi internal water heater
Polypropylene (PP) concentric flue installation guide

Important
Rinnai INFINITY gas hot water heater ueing shall 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.
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

Flueing options .....................................................4
Flueing guidelines.................................................5
Flue spigot dimensions .........................................6
Joint connection....................................................6
Appliance connection ...........................................6
Condensate ..........................................................6
UV protectors........................................................7
Cutting to size .......................................................7
Direct ueing using the FFP100HKIT ...................8
Vertical and combination ueing ...........................8
Flue kits and components.....................................10
Contents
These instructions are to be used in conjunction with the N-Series installation guide, which
contains important information about draining condensate.
For assembly of ue components only use the Centrocerin lubricant provided, or water.
Centrocerin is a water soluble lubricant designed to ease assembly of ue components. Other
lubricants are not suitable as they will damage the ue. Centrocerin is provided with the vertical
roof cowl, and the horizontal thru-wall kit. It is also available for purchase as a separate item.
Important

4 | Rinnai INFINITY N56kWi concentric ue installation guide 12746-B 02-20
Flueing options
Polypropylene concentric ueing is for the N56kWi internal unit only. It has a plastic inner pipe to
discharge products of combustion and a plastic outer pipe for air supply to the appliance.
Each Rinnai INFINITY N56kWi water heater is ued individually, refer ueing options below.
1
2
4
3
Direct ueing
For direct ue installations through an external wall using the direct horizontal ue kit
FFP100HKIT—maximum wall thickness 550 mm.
Horizontal extension ueing
For ue installations through an external wall using the direct horizontal ue kit
FFP100HKIT and additional lengths of pipe FFP100PIPE.
Please note:
Slope horizontal ues back towards the water heater at a 25 mm fall per metre to drain
condensate.
Vertical straight ueing
Installations where the internal unit is ued vertically through the roof.
Combination ueing
Installations using a combination of horizontal and vertical ueing.

Rinnai INFINITY N56kWi concentric ue installation guide 12746-B 02-20 | 5
Flueing guidelines
The ue terminal is to terminate in a location so as not to cause a nuisance, in accordance with
AS/NZS 5601.
Flue support
Ensure the ue is supported
independently of the appliance
by use of suitable clips or
brackets in accordance with
AS/NZS 5601. Appropriate
stando󰀨 brackets are supplied
with each roof cowl and ue
pipe.
Flue length
The chart below highlights
the maximum ue length and
number of bends. One 90°
bend equates to 3 m, and one
45° bend equates to 1.1 m.
If you need to extend beyond
20 m please contact Rinnai
as we have another ueing
option available.
Number of 90 ° Bends
01234
Flue Length (m)
1
2
3
4
5
6
7
8
9
11
12
14
15
17
18
20
Vertical terminations
To ensure products of
combustion are cleared,
adequate clearance from
the building is required. The
vertical ue cowl should have
a 500 mm clearance from any
part of the building. This also
applies to steeped and pitched
roofs, where the ue cowl
should be 500 mm clear of the
ridge line. An adequate ow of
fresh air must exist around the
ue cowl following installation.
Minimum clearances are
shown in AS/NZS 5601.1.
White pipe UV protection
Where appropriate, all
components must be
protected from UV. The
horizontal terminal (black
section) is UV resistant. The
vertical terminal is provided
with two black UV protectors.
Anything else exposed to UV
should be painted.
Multiple ues
Ensure minimum distances, as
shown below, are maintained.
Each terminal is to be
terminated at the same height,
refer images below—please
note these images show older
style terminals, which have
since been updated.
500 500
Vertical PP flue cowl
500 500
Horizontal PP thru-wall kit
355
Min. clearance 500 mm
Older style roof cowls and
horizontal terminals all terminating
at the same height
Flueing table showing maximum
ue length and maximum number
of bends

6 | Rinnai INFINITY N56kWi concentric ue installation guide 12746-B 02-20
Flue spigot dimensions
The Rinnai INFINITY ue spigot for the N56kWi
is xed and cannot be adjusted.
Condensate
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.
For further information refer to the Rinnai
INFINITY N-Series installation guide.
2°
NOT
470
71.6
670
276 15.2
139.2
654
725.6
240.8
Joint connection
Flue connections must be rmly pressed
together so that the gaskets form an airtight
seal.
To ensure optimum joint connection it is
recommended to secure with 4 x 12.5 mm
(#8 x ½ “) self tapping screws.
Appliance connection
All N56kWi ueing will start with either the
horizontal adapter (part of the horizontal thru wall
kit) or the vertical adapter. This reduces the ue
diameter from Ø80/120 mm to Ø60/100 mm.
Insert the male end of the adapter into the
female ue spigot on the top of the water heater.
Secure in place with self tapping screws.
Vertical starter adapter Horizontal starter adapter

Rinnai INFINITY N56kWi concentric ue installation guide 12746-B 02-20 | 7
UV ue protectors
The roof cowl comes with two black UV protectors (already joined) for covering and protecting the
white pipe from UV damage. If any remaining white pipe is exposed to UV, this should be painted
with a suitable UV resistant coating.
Roof cowl
Male end up
Female
end down
Cut this end
if required
Ensure the UV
protectors sit
outside the decktite
Cutting to size
Pipes overlap by approximately 32 mm. Once joined the e󰀨ective length is reduced by 32 mm. This
needs to be factored when cutting to size, refer image below.
The inner pipe must always extend 10 mm beyond the outer pipe in the male end of the ue.
Always cut the male end of the ue and not the female end. Deburr sharp edges as this could
damage the gasket resulting in a system that is no longer air-tight.
Roof cowl
The roof cowl can be shortened by cutting both the inside and outside pipes the same length.
Always deburr the sharp edges.
10 mm
y
y + 10 mm
y
white (outer) white (inner)
X + 65 mm
10 mm
X 32 mm32 mm
Important
When installing the UV protectors it is critical
that the protector sits outside the decktite, not
inside.
Weathertightness will be an issue if the
protector is installed inside the decktite.
White outer pipe White inner pipe
X = A + 95 mm (min.) X + 10 mm

8 | Rinnai INFINITY N56kWi concentric ue installation guide 12746-B 02-20
Direct ueing using the FFP100HKIT
For installations where the Rinnai INFINITY is mounted directly on the inside of an external wall
with a wall thickness of between 95-550 mm, 95 mm is the minimum length the ue terminal can
be cut down to (refer image on previous page). Horizontal ues must slope 25 mm per metre back
towards the water heater.
The FFP100HKIT contains:
• Horizontal adaptor (bend)
• Horizontal ue terminal
• Internal white wall plate/seal
• External black wall seal
Installation
1. Mount the water heater in an appropriate
location.
2. Using the dimensions provided, mark
a point along the appliance centreline
approximately 122.6 mm from the top of the
water heater. This mark forms the centre for
the wall penetration.
3. Make a 115 mm wall penetration for the ue.
Ensure the ue spigot of the water heater
is covered while cutting to avoid debris
entering the ue connection of the appliance.
4. Measure the required length for the
horizontal terminal to penetrate the wall.
5. Fit the external wall seal to the terminal
pipe. Pass the male end of the terminal
pipe through the penetration point and
weatherproof the penetration. Fit the internal wall seal.
6. Connect the terminal pipe to the bend, ensuring the components are pushed ‘fully-home’.
Secure the joints of the bend to the terminal pipe with three self-tapping screws (not supplied).
Extended horizontal ue
The extended horizontal ue option can be used
when the water heater is mounted against an
internal wall and the ueing needs to be extended
horizontally for a longer distance to exit an
external wall. Use the FFP100HKIT as a starting
point and customise with ue pipe.
Remember to allow for a condensate connection.
For further information refer to the Rinnai
INFINITY installation guide, section ‘Condensate’.
25 mm per metre
fall back to the
water heater
External
wall seal
Direct
Internal
wall seal
550 mm max.
Sideways
direct
Approx.
122.6
122.6
115 mm wall penetration
25 mm per metre fall back
to the water heater
FFP100HKIT FFP100PIPE
25 mm per metre fall
back to water heater
Extended horizontal flue
FFP100HKIT
The white section of the terminal should not be exposed outdoors. If the terminal protrudes from
the wall exposing the white section of the pipe, this can a󰀨ect performance of the product.
Important

Rinnai INFINITY N56kWi concentric ue installation guide 12746-B 02-20 | 9
Vertical and combination ueing
If starting horizontally and nishing horizontally, use the FFP100HKIT as a starting point and
customise. If starting horizontally and ending vertically or vice versa, individual ue components
will need to be ordered. Flueing must start with a horizontal or vertical adapter.
Vertical adapter
(supplied with roof cowl)
FFP100BEND
FFP100HKIT
FFP100VKIT
UV protectors
supplied with roof cowl
Ensure the UV
protectors are
installed outside
the decktite (not
supplied)
25 mm per metre
back towards water heater
FFP100PIPE
FFP100VKIT
FFP100PIPE
FFP100PIPE
FFP100PIPE
FFP100BEND
FFP100HADAPT
(supplied with FFPHKIT)
FFP100PIPE
Ensure the UV
protectors are
installed outside
the decktite (not
supplied)
UV protectors
supplied with roof cowl
FFP100BEND
1. Mount the water heater in an appropriate
location.
2. Set a plumb bob from the centre of the
heater ue outlet to the ceiling marking
position. Cut a 115 mm hole in the
plasterboard (or a suitable oval for pitched
applications. Repeat this step for the
underside of the roong.
3. Install the UV protectors to the vertical
terminal.
4. Calculate the required number and
combination of FFP100PIPE lengths and
cut to size as required.
5. Install decktite roof seal (not supplied).
6. Ensure the ue is fully supported
independently of the appliance, by the use
of suitable clips or brackets, in accordance
with AS/NZS 5601. Appropriate stando󰀨
brackets are supplied with each roof cowl
and ue pipe component.
7. All joints must be secured with suitable self
tapping screws.
8. Install condensate drain.

10 | Rinnai INFINITY N56kWi concentric ue installation guide 12746-B 02-20
N56kWi polypropylene ue components
All the major ue components are constructed of a polypropylene outer and inner. These have zero
clearance to combustibles. All dimensions are in mm.
FFP100VADAPT: Vertical adapter 60/100 (supplied with vertical roof cowl)
Required for all vertical ue applications. The vertical adapter connects into the ue spigot of the N56kWi.
202
Ø80
Ø125
Ø60
83 mm
Ø80 mm
Ø125 mm
117 mm
Used for combination ueing for changing direction. One 90° bend equates to 3 m, one 45° bend equates to 1.1 m.
Water soluble lubricant designed to
ease assembly of ue components.
Other lubricants are not suitable as
they will damage the ue.
Please note:
This comes with
the horizontal, and
vertical terminal kits.
Flue clamp support—white.
Purchased if additional support is
required. Every length of ue should
be supported.
Please note:
This comes with each ue pipe.
134 mm
110 mm
140 mm
172 mm
202 mm
71 mm
FFP100HADAPT: Horizontal adapter 60/100
Required in combination ueing where the ue starts o󰀨 horizontally. The horizontal adapter connects into the ue spigot
of the N56kWi.
FFP100BEND: Flue bends 45°, sold as a pair
CF790025
Centrocerin lubricant
FFP100BRACKET
Flue bracket
FFP100PLATE
Inside wall plate
Internal white wall plate/seal, used to
tidy up any installation work. Comes
as part of the FFP100HKIT, but
can be ordered separately for other
ueing applications. Comes in two
pieces, refer next page for dimension
information.
The vertical adapter is supplied with the vertical
roof cowl and does not need to be ordered
separately.
Please
note