ambient. Units shall be able to operate down to 0° F when equipped with low ambient option.
I.Controls and Safeties:
1.Units shall be furnished with a control terminal block for connection of low voltage controls and thermostats.
2.Unit shall require a
3.Units shall have the following factory- installed safeties:
a.High and
b.Motor and compressor overtemperature.
c.Current lockout.
d.Inherent automatic fan motor overload.
J.Electrical Requirements:
All electrical power wiring shall enter the unit cabi- net at a single location. Control circuit is
K.Refrigerant Components:
Refrigerant circuit components include thermal expansion valves, distributor with nozzle, filter dri- ers, and charging service valves on each circuit. Suction line shall have a refrigerant loop to prevent refrigerant drain back to the compressor. Suction piping shall be insulated with closed cell piping insulation.
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