Installation instructions.
Refrigerant Piping and Condensate Drain–Indoor lJnit
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Optional tubing kits are available which consist
of all interconnecting copper lines, wiring
needed to connect indoor to outdoor units,
and a plastic sleeve endcap to enhance the
installation wall hole sealing. You may also
purchase the tubing, insulation, wiring, etc.,
locally for the installation. See chart on page
for tubing diameter sizes required for the
different models.
14
N07E Since the refrigerant metering device is
located in the outdoor unit, both the gas and the
liquid tubing line sets must be insulated. Amn@ex
material isrecommended.
Gaslineinsu\~ionWZtion
*For heat pump models, heat-resistant insulation material
with minimum rating of 230° Fis required.
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See chart on page 14 for maximum lengths of
tubing for interconnecting units. The indoor
and outdoor units are provided with flare nuts.
See the brass fittings on the indoor/outdoor
sections.
N07E:The indoor unit is shipped from the factory
with a nitrogen holding charge to prevent moisture
contamination during shipment. Remove the flare
nuts on the indoor unit to vent the nitrogen
(environmentally friendly) into the atmosphere.
❑
Measure distance between indoor and outdoor
units, considering the routing for the piping
and wiring. Cut tubing to lengths, insert the
tubing insulation. Flare the ends of tubes, after
inserting flare nuts that will connect to the
indoor and outdoor units.
76
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