Commercial Air to Water Heat Pump Water Heater
14
THIS WATER HEATER IS FOR INDOOR OR
OUTDOOR INSTALLATION, MODEL DEPEN-
DENT. THIS WATER HEATER IS NOT SUIT-
ABLE FOR POOL HEATING.
INSTALLATION STANDARDS
The water heater must be installed:
• by a qualified person, and
• in accordance with the installation instructions, and
• in compliance with Standards UL 1995, NSF/ANSI/CAN
61 and all local codes and regulatory authority require-
ments.
WATER HEATER APPLICATION
This water heater is designed for the purpose of heating
potable water. Its use in an application other than this may
shorten its life
If this water heater is to be used where an uninterrupted hot
water supply is necessary for the application or business,
then there should be redundancy within the hot water system
design. This should ensure the continuity of hot water supply
in the event that this water heater was to become inoperable
for any reason. We recommend you provide advice to the
system owner about their needs and building backup redun-
dancy into the hot water supply system.
COMPONENTS
The heat pump water heater system is modular and compris-
es three main components: the heat pump water heater, stor-
age tanks and primary circulator. An auxiliary booster and/or
circulator may also be employed as part of the system. The
water heater must not be operated until all components are
assembled.
DO NOT tilt the heat pump more than 45° from
the vertical. This will unsettle the refrigerant gas and
compressor lubricating oil. If the heat pump has been tilted
more than 45° from the vertical during handling, it will need
one hour to settle before the power to the water heater can
be switched on, otherwise damage to the compressor may
result.
INDOOR INSTALLATION
To comply with UL 1995, the minimum room size permis-
sible in relation to the quantity of refrigerant in the wa-
ter heater, is 264.86ft
3
per 60k BTUh heat pump and
626.12ft
3
per 135k BTUh heat pump. A larger room size
is recommended for efficient heat pump operation.
WATER HEATER LOCATION
Non ducted vertical and horizontal models are designed to
be installed outdoors or indoors, if a sufficient supply of heat
energy is available and the room meets the volume require-
ments stated above. Good performance is obtained when
the heat pump is supplied with a constant supply of fresh air.
Failure to observe the above recommendations may lead to
lower than expected performance or problematic operation
of the heat pump.
Vertical and horizontal models can be converted with a kit,
models are designed for ducting of discharge air in indoor
installations.
The water heater should be installed close to the storage
tanks and its position chosen with noise, safety and service
in mind. Make sure the air inlet and outlet grilles are clear
of obstructions and shrubbery and they are unlikely to be
touched by people (especially children).
It is advisable to install the water heater away from bedroom
or living room windows as the system can generate a noise
of 69dBA (at 10ft from the water heater) whilst operating.
It is recommended the water heater be installed at ground
or floor level. Stacked units with base unit at ground or floor
level is acceptable from a servicing perspective.
The water heater must stand vertically upright.
NOTE: to assist with condensate drainage, the
heat pump has a 2.5 degrees slope towards the
drains. Do not level the product.
Clearance must be allowed for servicing of the water heater.
The water heater must be accessible without the use of a
ladder or scaffold.
You must be able to read the information on the rating plate.
Remember you may have to remove the entire water heater
later for servicing.
The water heater must not be installed in an area with a
corrosive atmosphere where chemicals are stored or where
aerosol propellants are released. Remember the air may be
safe to breathe, but the chemicals may attack the materials
used in the heat pump system.
INSTALLATION
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