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530.44-N5Y
FILTERS
A high velocity filter must be field supplied. Filters must always
be used ahead of evaporator coil and must be kept clean or
replaced with same size and type. Dirty filters will reduce the
capacity of the unit and will result in frosted coils or safety
shutdown.
CONDENSATE DRAIN
The draw-thru indoor coil requires a condensate trap. The
plumbing must conform to local codes. Use a sealing com-
pound on male pipe threads. Install the condensate drain line
⁄
3
(
" NPTF) to spill into an open drain.
4
SERVICE ACCESS
Access to all serviceable components is provided by the fol-
lowing removable panels:
• Service access compartment
• Blower compartment
• Gas control service access
Refer to Figure 5 for location of these access panels.
THERMOSTAT
The room thermostat should be located on an inside wall
approximately 56" above the floor where it will not be subject
to drafts, sun exposure or heat from electrical fixtures or
appliances. Follow manufacturer's instructions enclosed with
the thermostat for general installation procedure. Four color
coded insulated wires (#18 AWG) should be used to connect
thermostat to unit. See Figure 2.
* EITHER OF THE FOLLOWING
MAY BE USED
THERMOSTAT 2TH07701024
(OR)
PROGRAMMABLE
THERMOSTAT 2ET07701024
GROUND LUG
STRAIN RELIEF REQUIRED
FIG. 2 - TYPICAL FIELD WIRING DIAGRAM
4
CONTROL WIRING
THERMOSTAT*
UNIT TERMINAL STRIP
POWER WIRING
POWER AND CONTROL WIRING
Field wiring to the unit must conform to provisions of the current
N.E.C. ANSI/NFPA No. 70 or C.E.C. and/or local ordinances.
The unit must be electrically grounded in accordance with local
codes or, in their absence, with the N.E.C./C.E.C. Voltage
tolerances which must be maintained at the compressor termi-
nals during starting and running conditions are indicated on the
unit Rating Plate and Table 7.
The wiring entering the cabinet must be provided with mechani-
cal strain relief.
A fused disconnect switch should be field provided for the unit.
Refer to Figure 5 for installation location. If any of the wire
supplied with the unit must be replaced, replacement wire must
be of the type shown on the wiring diagram.
Electrical line must be sized properly to carry the load. Each
unit must be wired with a separate branch circuit fed directly
from the meter panel and properly fused.
Refer to Figure 2 for typical field wiring and to the appropriate unit
wiring diagram for control circuit and power wiring information.
CAUTION: Label all wires prior to disconnection when servic-
ing controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after
servicing.
24 VOLT TRANSFORMER
TERMINAL IN
CONTROL BOX
UNIT CABINET
FIELD-SUPPLIED
FUSED DISCONNECT
NOTE:
HEAT ANTICIPATOR
SHOULD BE SET AT 0.65
AMPS FOR ALL MODELS.
SINGLE
PHASE
POWER
SUPPLY
Unitary Products Group
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