Filter
Top Products
6
Water Heater Location
• Centrally located with the water piping system.
• The fl ooring beneath the water heater must be able
to support the weight of the water heater when
fi lled with water (see Table 1).
TABLE 1: Weight of water heater, full of water
Capacity Weight (lbs)
60 Gallon 760
80 Gallon 967
• Located indoors (such as a basement or garage)
and in a vertical position. Protected from freezing
temperatures.
• Provisions made to protect the area from water
damage. Metal drain pan installed and piped to an
adequate drain.
• Sufficient room to service the water heater.
• Sufficient air for the heat pump to function. The
approximate minimum air requirement is 750
cubic feet of space. For example: this would be
a room approximately 10’X9 1/2’ in size with an 8’
ceiling. NOTE: For optimal effi ciency, the following
minimum clearances should be maintained: 3 ft. on
the air inlet side, 6 ft. on the air outlet side and 2 ft.
front and back.
• Unrestricted airfl ow, the unit cannot be placed into
any type of closet or small enclosure.
• The site location must be free from any corrosive
elements in the atmosphere such as sulfur, fl uorine,
and chlorine. These elements are found in aerosol
sprays, detergents, bleaches, cleaning solvents,
air fresheners, paint and varnish removers, and
many other commercial and household products.
In addition, excessive dust and lint may affect the
operation of the unit and require more frequent
cleaning, see “Cleaning/Replacing the Air Filter”
section (p.11).
• Ambient air temperature must be between 45°F
and 109°F (inclusive) in order for the heat pump to
work properly. If the ambient air temperature falls
outside these upper and lower limits the electrical
elements will activate to meet hot water demand.
Water System Piping
• Temperature and pressure relief valve properly
installed with a discharge pipe run to an adequate
drain and protected from freezing.
• All piping properly installed and free of leaks.
• Heater completely filled with water, see “Water
Piping System” section (p.9).
• Closed system pressure buildup precautions
installed, see “Closed System/Thermal Expansion”
section (p.10).
• Mixing valve (when applicable) installed per
manufacturer’s instructions see “Water Piping
System” (p.9).
Condensate Drain Line Installation
• Must be located with access to an adequate drain
or condensate pump.
• Condensate drain lines installed and piped to an
adequate drain or condensate pump.
Electrical Connections
• The water heater requires nominal 240 VAC for
proper operation.
• Wiring size and connections comply with all
applicable codes or in the absence of local or state
codes follow NFPA-70, the National Electrical
Code-current edition.
• Water heater and electrical supply are properly
grounded.
• Wiring enclosed in approved conduit (if required by
local codes).
• Dedicated circuit with proper overload fuse or
circuit breaker protection installed.
Post Installation Review
• To maintain optimal operation check, remove and
clean the air filter see “Cleaning/Replacing the Air
Filter” section (p.11).
• Understand the importance of routine inspection/
maintenance of the condensate drain pan and
lines, see “Inspection/Cleaning of the Condensate
Drain Pan & Condensate Drain Lines” (p.46). This
is to help prevent any possible drain line blockage
resulting in the condensate drain pan overflowing.
IMPORTANT: Water coming from the plastic
shroud is an indicator that both condensation drain
lines may be blocked. Immediate action is required.
• Understand how to use the User Interface Module
to set the various modes and functions, see
“Adjusting the User Interface Module/Operating
Modes” (p.12-13).
• Understand the various Operating Modes and
which mode may be best based on season,
ambient temperature, and usage see “Operating
Mode Description” (p.12-13). NOTE: It may be
necessary to temporaily change modes if, for
example, filling a spa or hot tub.
• The Installation Instructions and Use & Care Guide
should be kept with the water heater for reference.
Installation Checklist