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INSTALLATION AND OPERATING INSTRUCTION MANUAL
HEAT PUMP - HP MODELS 1 1/2 - 5 1/2 TONS
1. INTRODUCTION
Please take a few minutes to read our instructions before you install and use yonheat pump. This will
help you obtain the full value from your unit. It will also help you avoid any needless service costs that
result from causes we cannot control and cannot cover in our guarantee.
RULES FOR INSTALLATION AND SAFE OPERATION
1. Read these rules and the instructions carefully.
Failure to follow the rules and the instructions
could cause a malfunction of the heat pump unit
resulting in injury,death and/or property damage.
2. Check your local codes and utilitystandards.
The installation must comply with their rules.
3. Shut off the electric oower before makino
connections on the unit or removing 0anels for
servicing. (There may be more than one
di_;connect!.
4. Referto Section VIII for maintenance procedures.
5. Do not operate this unit at outdoor temperatures
below 60"F on cooling nor above 75° on heating.
6. The components ofa heat pump may have sharp
edges or protrusions which can cut you. The
tubing and compressor contain high pressure
refrigerant. They must not be exposed to high
temperature or be punctured. When installingor
servicing the heat pump, be extremely careful to
avoid injury.
7. The refrigerant circuitis in a closed, pressurized
system. If for any reason, the system needs to
be opened for servicing, it is imperative that both
high and low sides of the system be purged
completely intoa recoverytank before anysection
of the tubing is cut or unbrazed.
The importance of proper installation cannot be overemphasized. The best designed unitwll appear
to operate poorly if installed improperly. Unlike the small appliance where quality of operation can
usually be determined as it leaves the factory, the performance of a heat pump depends, to a large
extent, on its installation.
Problems always occur if the installer does not take precautions in the following areas:
Wire Size
Duct Size
Duct Openings
Duct Insulation
Refrigerant Charge
- Inadequate wire sizes can cause an excessive voltage drop, causing the compressor
and fan motors to operate at undesirably low voltage levels.
- Inadequate duct size, elbows, distributorsor registers can restdctair flow.
- Improperly sealed duct sections can cause considerable loss in coolingcapacity due
to air leakages.
- Inadequate duct installation in attic space will cause heat gain in the system.
- Unit is precharged, but should a charge be necessary, it should be verified against
the operating system pressures, temperatures, and current draws as specified in the
catalog.
These heat pumps have proven their reliability over several decades. Years of research, engineering
and only the highest quality component parts and workmanship have gone into these heat pumps to"
make them the most reliable in the industry. Before a model is released for production,it undergoesa
battery of tests in environmental test rooms with temperatures ranging from sub-freezing 0°F to 120°F
desert temperatures.
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