Specifications

2
The selected site should be no greater than 50’ below or 70’
above the evaporator section. For optimum performance, the
minimum length interconnecting tubing is preferred. When pos-
sible minimize the amount of bends and turns.
Rooftop Installations
If it is necessary to install this unit on a roof structure, ensure
the roof structure can support the weight and that proper con-
sideration is given to the weather-tight integrity of the roof. Since
the unit can vibrate during operation, sound vibration transmis-
sion should be considered when installing the unit. Vibration
absorbing pads or springs can be installed between the con-
densing unit legs or frame and the roof mounting assembly to
reduce noise vibration.
Rigging
To avoid possible injury or death, all panels must be
in position and secured before lifting this equipment
Use field-supplied spreader bars when lifting the unit to mini-
mize the possibility of lifting cable/straps damage. To protect
the cabinet louvers, use protective material such as plywood
behind the cable/straps. Arrange the straps to form a central
suspension point. NOTE: When raising and setting the unit,
observe all safety rules. Remove shipping skid and all protec-
tion and lifting material after the unit is in place.
Safe Refrigerant Handling
While these items will not cover every conceivable situation,
they should serve as a useful guide.
Refrigerants are heavier than air. They can "push out"
the oxygen in your lungs or in any enclosed space.To
avoid possible difficulty in breathing or death:
•
Never purge refrigerant into an enclosed room or
space. By law, all refrigerants must be reclaimed.
•
If an indoor leak is suspected, throughly ventilate the
area before beginning work.
• Liquid refrigerant can be very cold. To avoid possible
frostbite or blindness, avoid contact and wear gloves
and goggles. If liquid refrigerant does contact your
skin or eyes, seek medical help immediately.
• Always follow EPA regulations. Never burn refrig-
erant, as poisonous gas will be produced.
WARNING
To avoid possible explosion:
Never apply flame or steam to a refrigerant cylinder.
If you must heat a cylinder for faster charging,
partially immerse it in warm water.
Never fill a cylinder more than 80% full of liquid re-
frigerant.
• Never add anything other than R410A to an R-410A
cylinder. The service equipment used must be
listed or certified for the type of refrigerant used.
• Store cylinders in a cool, dry place. Never use a cy-
linder as a platform or a roller.
•
•
To avoid possible explosion, use only returnable (not
disposable) service cylinders when removing refrig-
erant from a system.
• Ensure the cylinder is free of damage which could
lead to a leak or explosion.
• Ensure the hydrostatic test date does not exceed
5 years.
• Ensure the pressure rating meets or exceeds 400
lbs.
When in doubt, do not use cylinder.
WARNING
Refrigerant Lines
NOTE: For improved refrigerant management, equip the
evaporator coil with a field-supplied thermal expansion valve
(TXV) and the liquid line with a field-supplied liquid line solenoid.
Ensure the solenoid is installed as close as possible to the
evaporator coil to prevent refrigeration migration in the
compressor “OFF” cycle.
Use only refrigerant grade (dehydrated and sealed) copper tub-
ing to connect the condensing unit with the indoor evaporator.
After cutting the tubing, install plugs to keep refrigerant tubing
clean and dry prior to and during installation. Tubing should
always be cut square keeping ends round and free from burrs.
Clean the tubing to prevent contamination.
Do NOT let refrigerant lines come in direct contact with plumb-
ing, ductwork, floor joists, wall studs, floors, and walls. When
running refrigerant lines through a foundation or wall, openings
should allow for sound and vibration absorbing material to be
placed or installed between tubing and foundation. Any gap
between foundation or wall and refrigerant lines should be filled
with a pliable silicon-based caulk, RTV or a vibration damping