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To avoid equipment damage, DO NOT use
these units as a source of heating or cooling
during the construction process. The mechanical
components and fi lters used in these units will
quickly become clogged with construction dirt
and debris which may cause system damage.
To avoid the release of refrigerant into the
atmosphere, the refrigerant circuit of this unit
must be serviced only by technicians who meet
local, state and federal profi ciency requirements.
All refrigerant discharged from this unit
must be recovered WITHOUT EXCEPTION.
Technicians must follow industry accepted
guidelines and all local, state and federal statutes
for the recovery and disposal of refrigerants.
If a compressor is removed from this unit,
system refrigerant circuit oil will remain in the
compressor. To avoid leakage of compressor oil,
the refrigerant lines of the compressor must be
sealed after it is removed.
Pre-Installation
Installation, operation and maintenance instructions
are provided with each unit. Before unit start-up, read
all manuals and become familiar with the unit and its
operation. Thoroughly check the system before operation.
Prepare units for installation as follows:
1. Compare the electrical data on the unit nameplate
with ordering and shipping information to verify the
correct unit has been shipped.
2. Keep the cabinet covered with the shipping carton
until installation is complete and all plastering,
painting, etc., is fi nished.
3. Verify refrigerant tubing is free of kinks or dents and
that it does not touch other unit components.
4. Inspect all electrical connections. Connections must
be clean and tight at the terminals.
Remove Fan Motor shipping bracket in rear of
Air Handler compartment.
Table 1. Physical Data
MODEL 036 042 048 060 072
Fan Wheel (Dia. X Width), in. 9 X 7
Fan Motor & HP ECM - 1/2 ECM - 1/2 ECM - 1
No. Refrigerant Circuits 2 2 2 2 2
Compressors 2 - Rotary
No. Coaxial Heat Exchangers 2 2 2 2 2
R - 22 Charge (Sys A / Sys B), oz 40 / 40 57 / 59 62 / 62 54 / 54 58 / 58
Water Connection Size (fpt swivel) 1" 1" 1" 1" 1"
Air Coil Length x Height, in.
20 X 24 24 X 24 24 X 32 24 X 36 24 X 36
Filter - 1" ElectroStatic (Std.) 24 x 24 27 x 31 27 x 31 27 x 35 27 x 35
Weight - Operating (lbs.) 225 275 305 385 450
Weight - Packaged (lbs.) 235 285 315 395 460
Rev.: 8/07/04D
All units have txv expansion devices, 20 ga sheet metal,
and 7/8" & 1-1/8" electrical knockouts.
All units have dual 1" Swivel water connections (4 total)
HWG utilizes 1/2" fpt water connections and is available only on circuit A.
All units have 3/4" fpt condensate drain connections.
2 - Scroll
11 X 10 11 X 10
ECM - 1
2 - Scroll
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