Nordyne Single Package Heat Pump R-410A - Manual (Page 4)

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At the beginning of the defrost cycle, both the
outdoor condenser fan and compressor will
turn off. After approximately 30 seconds, the
compressor will turn on and begin to heat the
outdoor coil causing the ice and snow to melt.
NOTE: While the ice and snow is melting, some
steam may rise from the outdoor unit as the warm
coil causes the melting frost to evaporate. When
defrost is completed, the outdoor fan motor will
start, and the compressor will turn off again. In
approximately 30 seconds the compressor will
start up again and continue normal operation.
System Shutdown
Change the thermostat’s system mode to OFF
and the fan mode to AUTO (See Figure 1).
NOTE: The system will not operate, regardless
of the temperature selector setting.
Warranty Information
A warranty certificate with full details is
included with the heat pump. Carefully review
these responsibilities with your dealer or
service company. The manufacturer will not be
responsible for any costs found necessary to
correct problems due to improper setup, improper
installation, adjustments, improper operating
procedure on the part of the user, etc. Some
specifi c examples of service calls which are not
included in the limited warranty are:
1. Correcting wiring problems in the electrical
circuit supplying the heat pump.
2. Resetting circuit breakers or other switches.
3. Adjusting or calibrating of thermostat.
INSTALLER INFORMATION
General Information
The installer should comply with all local
codes and regulations which govern the
installation of this type of equipment. Local
codes and regulations take precedence over
any recommendations contained in these
instructions. Consult local building codes and
the National Electrical Code (ANSI CI) for special
installation requirements. Read the following
instructions completely before performing
the installation.
Some states require installation and service
personnel to be licensed. Unqualifi ed individuals
should not attempt to interpret these
instructions or install this equipment.
This equipment contains R-410A refrigerant
under high pressure. Installation or servicing
should only be performed by qualifi ed trained
personnel thoroughly familiar with this type
equipment and related system components.
CAUTION:
This unit uses refrigerant R-410A. DO NOT
under any circumstances use any other
refrigerant in this unit. Use of another
refrigerant will damage the unit.
Single packaged heat pumps are ready for easy
and immediate installation and can be readily
connected into the high static duct system of a
home. This unit is completely assembled, wired,
and run tested at the factory. This heat pump
is designed for outdoor installation only. The
only connections needed for installation are the
supply and return ducts, the line voltage, and
thermostat wiring. A complete heat pump system
typically consists of:
• Single Package Heat Pump
• Home Fittings Kit
• Unit Fittings Kit
• 2-Stage
Cooling/Heating Thermostat
Use of components other than those specifi ed
may invalidate ARI Certifi cation, Code Agency
Listing, and limited warranty on the air
conditioner.
Pre-Installation Check
Before you install this unit, the cooling load of
the area to be conditioned must be calculated
and a system of the proper capacity selected. It
is recommended that the area to be conditioned
be completely insulated and vapor sealed.
The electrical supply should be checked to
determine if adequate power is available. If there
is any question concerning the power supply,
contact the local power company.
CAUTION:
To prevent personal injury and/or
equipment damage, check thermostat
manufacturer’s operation of fan relay
circuit when in EMER HEAT. When
the thermostat system mode is in the
EMER HEAT position, the thermostat
must energize the fan relay when the
fan mode is in the AUTO position.
Inspecting Equipment:
All units are securely packed at the time of
shipment and, upon arrival, should be carefully
inspected for damage. Claims for damage
(apparent or concealed) should be filed
immediately with the carrier.