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Typical Condensate Drain Connection
(Secondary Drain Not Shown)
A
A. Air handler
B. Drain connection
C. Drain line
D. 2" (5.1 cm) minimum
E. Anti-siphon air vent
NOTE: Do not operate the air handler without a drain trap. The
condensate drain is on the negative pressure side of the blower;
therefore, air being pulled through the condensate line will block
positive drainage without a proper trap.
6. Route the drain line to the outside or to an appropriate drain.
Drain lines must be installed so they do not block service
access to the front of the air handler. A 24" (61 cm) clearance
is required for filter, coil, or blower removal and service
access.
NOTE: Check local codes before connecting the drain line to
an existing drainage system.
7. Insulate the drain lines where sweating could cause water
damage.
Test Condensate Drain Pan and Drain Line After
Installation:
1. Pour several quarts of water into the drain pan, enough to fill
the drain trap and line.
2. Check that the drain pan is draining completely, no leaks are
found in the drain line fittings, and water is draining from the
end of the primary drain line.
3. Correct any leaks found.
Install Ductwork
IMPORTANT:
Install the ductwork in accordance with NFPA 90B Standard
for the Installation of Warm Air Heating and Air-Conditioning
Sytems (latest edition) and any local codes.
Connect the supply air duct to the flange on top of the unit. If
an isolation connector is used, it must be nonflammable.
A return air duct system is recommended. If the unit is
installed in a confined space or closet, the entire duct cross
sectional area must meet the minimum return air free area.
8
D
I
F
H
F. 3" (7.6 cm) minimum
G. Drain trap
H. Auxiliary drain pan
I. 12" (30.5 cm) maximum
1. Consult the outdoor unit literature to determine whether the
indoor unit has the correct orifice installed.
2. If a change of the orifice is required, loosen the brass hex nut
and separate the orifice extension stub from the brass hex
B
fitting.
C
E
A
G
G
A. Distributor fitting
B. Piston orifice
C. Ring seal (supplied)
D. Orifice extension stub
3. Remove the orifice with an orifice extractor tool.
4. Insert the proper orifice into the fitting, seal end first. Make
sure the orifice is free to move in the fitting.
5. Replace the brass hex nut.
NOTE: Overtightening the brass hex nut will crush the gasket
and may result in a system leak or stuck piston.
6. Dispose of/recycle all packaging and unused parts.
Connect Refrigerant Lines
Refrigerant lines must be connected by a licensed, EPA certified
refrigerant technician in accordance with established procedures.
IMPORTANT:
Connecting refrigerant lines must be clean, dehydrated,
refrigerant-grade copper lines. Air handler coils should be
installed only with specified line sizes for approved system
combinations.
Handle the refrigerant lines gently during the installation
process. Sharp bends or possible kinking in the lines will
cause a restriction.
Do not remove the caps from the lines or system connection
points until connections are ready to be completed.
This product is factory-shipped under pressure. Follow
these instructions to prevent injury.
To protect the unit when welding close to the painted
surfaces, the use of a quenching cloth is strongly advised
to prevent scorching or marring of the equipment finish.
Solder with a minimum of 5% silver is recommended.
Verify Orifice Size
F
E. 0.812" brass hex nut
F. Brass hex fitting
G. Mounting flange
WARNING
Goodman 4
CAUTION
Goodman 3
B
C
D
E
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