Appliance Location - Rinnai VT16-26 Installation Manual

Appliance location

Installation in environments
free from corrosive compounds
Air surrounding the water heater,
venting and vent termination(s) is
used for combustion and must be
free from compounds that cause
corrosion of internal components.
These include corrosive
compounds that are found in
aerosol sprays, detergents,
bleaches, cleaning solvents,
oil based paints/varnishes, and
refrigerants. Therefore Rinnai
recommends outdoor models be
used for these locations where
possible. The water heater, venting
and vent termination(s) should not
be installed in any areas where the
air may contain these corrosive
compounds. Chemicals that are
corrosive in nature should not
be stored or used near the water
heater or vent termination.
Damage and repair due to
corrosive compounds in the air is
not covered by warranty.
If it is necessary for a water heater
to be located in areas which may
contain corrosive compounds,
Rinnai strongly recommends the
following:
Indoor (internal) water heaters
- DO NOT install in areas where
contaminated air is present.
- Consider, before installation,
where air has the ability to
travel within the building.
- Where possible, install the
heater in a sealed closet so
that it is free of contaminated
indoor air.
Outdoor (external) water heaters
and vent terminations of indoor
(internal) water heaters
- Install as far away as possible
from exhaust vent hoods
- Install as far away as possible
from air inlet vents—corrosive
fumes may be released
through these vents when air
is not being run through them
Internal models
Internal models are
designed for indoor
installations only.
They may be installed
in an enclosure if the
requirements of
AS/NZS 5601.1 are satisfied.
An enclosure is defined as a
compartment, enclosed area or
partitioned off space primarily
used for the installation of the
appliance. If installed in an
enclosure either internally or
externally, the location should be
ventilated to allow gas to dissipate.
They must be mounted on a
vertical structure with the water
and gas connections on the
underside pointing downwards.
For appliances installed in roof
spaces or elevated structures,
specific requirements apply. Refer
to AS/NZS 5601.1 for details.
Catch pan
It is important that a suitably
drained catch pan is fitted
CAUTION
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 flue system.
This appliance must be located
so that the flue terminal exits the
building at a suitable point, refer
'Minimum Clearances Required for
Flue Terminals', in AS/NZS 5601.1
Fig 6.2.
Manufacturer's instructions for
model REU-KM3237FFUD (EFi250);
for reference j, gas appliances over
200 MJ/h input, use ≥ 300 mm.
External models
External models are
designed for outdoor
installations only. They
must be located in an
above ground open-air
situation with natural
ventilation, without stagnant
areas, and where gas leakage and
products of combustion are rapidly
dispersed by wind and natural
convection.
They must be mounted 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 5601.1 Fig 6.2 for details.
This appliance must be located
so that the flue terminal exits the
building at a suitable point, refer
'Minimum Clearances Required for
Flue Terminals', AS/NZS 5601.1
Fig 6.2.
Manufacturer's instructions for
model REU-KM3237WD (EF250);
for reference j, gas appliances over
200 MJ/h input, use ≥ 300 mm.
Horizontal obstructions
AS/NZS 5601 stipulates 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), and not a partial
obstruction. A partial obstruction
of less than 1 m could result in wind
pushing flue gases back into the
flue terminal.
500 mm
500 mm
At 500 mm the obstruction DO NOT
needs to be the full height of
the unit.
Continuous Flow Water Heater Installation Guide 04-12 | 5