3
1.0 IMPORTANT SAFETY INFORMATION
WARNINGS:
•
These instructions are intended as an aid to
qualified, licensed service personnel for proper
installation, adjustment, and operation of this unit.
Read these instructions thoroughly before attempting
installation or operation.
Failure to follow these
instructions may result in improper installation,
adjustment, service, or maintenance possibly
resulting in fire, electrical shock, property
damage, personal injury, or death.
• The unit must be permanently grounded. Failure
to do so can cause electrical shock resulting in
severe personal injury or death.
• Turn off electric power at the fuse box or service
panel before making any electrical connections.
• Complete the ground connection before making
line voltage connections. Failure to do so can
result in electrical shock, severe personal injury,
or death.
• Disconnect all power to unit before starting
maintenance. Failure to do so can cause
electrical shock resulting in severe personal
injury or death.
• Never assume the unit is properly wired and/or
grounded. Always test the unit cabinet with a
noncontact voltage detector available at most
electrical supply houses or home centers before
removing access panels or coming into contact
with the unit cabinet.
• Do not use oxygen to purge lines or pressurize
system for leak test. Oxygen reacts violently with
oil, which can cause an explosion resulting in
severe personal injury or death.
•
The top of the scroll compressor shell is hot.
Touching the compressor top may result in serious
personal injury.
•
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any damage or defect to the unit caused by the
attachment or use of any components, accessories,
or devices (other than those authorized by the
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the heat pump.
You should be aware that the
use of unauthorized components, accessories,
or devices may adversely affect the operation
of the heat pump and may also endanger life
and property.
The manufacturer disclaims any
responsibility for such loss or injury resulting
from the use of such unauthorized components,
accessories, or devices.
CAUTIONS:
•
R-410A systems operate at approximately 60% higher
pressures (1.6 times) than R-22 systems. Do not use
R-22 service equipment or components on R-410A
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refrigerant. Failure to exercise care may result in
equipment damage or personal injury.
•
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condition.
•
Only use indoor coils approved for use on R-410A
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restrictor device that is not designed to operate
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serious operational issues. The R-22 coil could also
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POE oil used in R-410A systems and could result in
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•
When coil is installed over a finished ceiling and/or
living area, it is required that a secondary sheet metal
condensate pan be constructed and installed under
the entire unit. Failure to do so can result in property
damage.
•
The compressor has an internal overload protector.
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time to reset before condemning the compressor.
•
UNIT MAY START SUDDENLY AND WITHOUT
WARNING. A flashing red light on the heat pump/
defrost control indicates a call for unit operation is
present at the heat pump/defrost control. The heat
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the temperature rises above 5°F [-15°C].
WARNING:
Single-pole contactors are used on all standard
single-phase units through 5 tons. Caution must
be exercised when servicing as only one leg of the
power supply is broken by the contactor.
Safety
