17
TYPICAL PIPING AND WIRING
INDOOR
THERMOSTAT
DISCONNECT
PER NEC*
FROM
POWER
SOURCE
RETURN
AIR
TOP COVER
POWER ENTRY
CONTROL ENTRY
*NEC - National Electrical Code
A09098
APPLICATION DATA
Condensate trap — A 2--in. (51 mm) condensate trap must be
field supplied.
Ductwork — Secure downflow discharge ductwork to roof curb.
For horizontal discharge applications, attach ductwork to unit with
flanges.
To convert a unit to downflow discharge — Units are equipped
with factory sealed covers in the downflow openings.
Maximum cooling airflow — To minimize the possibility of
condensate blow--off from the evaporator, airflow through the units
should not exceed 450 cfm per ton (60 l/s per kW).
Minimum cooling airflow — Minimum cooling airflow is 350
cfm per ton (46.8 l/s per kW).
Minimum ambient cooling operation temperature —All
standard units have a minimum ambient operating temperature of
40_F(4_C). With accessory low ambient temperature kit, units can
operate at temperatures down to 0_F(--17_C).
50GL--A
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