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3
INSTALLING YOUR WATER HEATER
Consumer Information
This water heater should be installed in accordance with
the local code authority having jurisdiction, the power
company or electric utility, and this installation manual.
In the absence of local code requirements, follow the
regulations set forth in the latest edition of The National
Electric Code, NFPA 70. This is available from the
following:
National Fire Protection Association
1 Batterymarch Park
Quincy, MA 02269
American National Standards Institute
1430 Broadway
New York, NY 10018
Check your phone listings for the local authorities having
jurisdiction over your installation.
Consumer Responsibilities
This manual has been prepared to acquaint you with the
installation, operation and maintenance of your electric heat
pump water heater and to provide important safety information
in these areas.
We urge you to read all of the instructions thoroughly before
attempting the installation or operation of this water heater.
This manual should be kept for future reference.
The manufacturer of this water heater will not be liable for any
damages caused by failure to comply with the installation and
operating instructions outlined in this manual.
If you lack the necessary skills required to properly install this
water heater or you have difculty following the directions, you
should not proceed but have a qualied person perform the
installation of this water heater.
Examples of a qualified person include: licensed plumbers,
authorized electric company personnel, and authorized
service personnel.
Massachusetts code requires this water heater to be installed
in accordance with Massachusetts 248-CMR 2.00: State
Plumbing Code and 248-CMR 5.00.
A data plate identifying your water heater can be found
adjacent to the upper element door. When referring to your
water heater always have the information listed on the data
plate readily available, to include the model and serial number.
Retain your original receipt as proof of purchase.
Basic Operation Fundamentals
The Heat Pump Water Heater (HPWH) is an integrated
heat pump water heater unit, having an 850 watt
compressor and external coil heat exchanger with backup
electric elements (See Figure 1). When in Efciency Mode
the heat pump draws heat from the ambient air in the room
and transfers it to the water in the tank through the coil
heat exchanger. While in Electric Mode the water heater
functions like a standard electric water heater, relying on
the electric elements to heat the water. A Hybrid Mode is
available that relies primarily on the heat pump to heat
the water while the electric elements only function during
high demand periods. (See “Adjusting the User Interface
Module/ Operational Mode” section). The more often
the unit operates using the heat pump, rather than the
elements, the more efcient the unit will be.
The tank capacity of this heat pump water heater is sized to
maximize the use of the heat pump to deliver hot water at
a lower cost as compared to heat pump waters with lower
tank capacities (50 gallons or less.)
The HPWH uses about half the electricity of a comparably
sized conventional electric water heater when operating
in the Efciency Mode, and provides up to ½ ton cooling
capacity and dehumidication. It is designed for indoor,
residential applications for installation in a basement,
garage or utility room (See “Location Requirements”
section).
Ambient Air
Cool/Dehumidified Air
Heat Exchanger
(Heat Transfer Coils)
Upper Element
(4500 Watt)
Lower Element
(2000 Watt)
Water Tank
Jacket
Figure 1
Heat Pump Water Heater Basic Operation
Heat Pump
(Transfers heat
from ambient
air to Heat
Exchanger)
Unpacking the Water Heater
WARNING
Excessive Weight Hazard
Use two or more people to move and install
water heater.
Failure to do so can result in back or
other injury.
Removing Packaging Materials
IMPORTANT: Do not remove, cover or deface any
permanent instructions, labels, or the data label from either
the outside of the water heater or on the inside of water
heater panels.
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