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f. Refer to the outdoor unit Installation, Start-Up and
Service Instructions for additional information.
g. Install a factory-supplied filter drier near the out-
door unit. On heat pump systems, a bi-flow filter
drier must be used.
3. Insulate and caulk wall openings to reduce air infiltra-
tion and refrigerant pipe vibrations on structure.
4. Evacuate piping, if necessary. If either refrigerant pip-
ing or the indoor coil is exposed to atmospheric condi-
tions, it must be evacuated to 1000 microns to
eliminate contamination and moisture in the system.
Step 5 — Connect Condensate Drain Line —
Observe all local sanitary codes when installing condensate
drains. Refer to Fig. 3 and 14 for drain pipe connection from
indoor unit.
1. Use hard polyvinyl chloride (PVC) pipe material with
nominal ID of
3
/
4
in. to connect at drain line. Use pipe
insulation
1
/
4
-in. thick, such as Armaflex insulation, on
exposed piping inside the conditioned space.
2. To ensure regular flow of condensate water, the drain
pipe should be pitched toward an open drain or sump
at a downward slope of at least
1
/
4
-in. per ft.
3. Attach plate with screws under piping hole.
4. Attach drain pipe with nylon wire tie passing through
hole (Fig. 15).
NOTE: Do not fasten nylon wire ties tight enough to
deform the insulation, as this affects its performance.
5. Insulate condensate drain line(s) that are located in or
above an occupied area with a condensate-proof mate-
rial such as polyurethane or neoprene.
6. Install an external trap at the end of the condensate
line.
NOTE: Should the installation require one, a conden-
sate pump may be ordered as a field-installed
accessory.
Table 4A — Piston and Charge Combinations — Cooling Only Systems
Table 4B — Piston and Charge Combinations — Heat Pump Systems
*Size 060 indoor heat pump systems use a TXV (thermostatic expansion valve), part no. EA36YD250.
Table 4C — Piston and Charge Combinations — Heat and Cool Systems
*Size 060 indoor heat pump systems use a TXV (thermostatic expansion valve), part no. EA36YD250.
COOLING
INDOOR UNIT SIZE
OUTDOOR UNIT
38HDR
PISTON
SIZE
CHARGE (lb)
024
018 57 7.0
024 57 7.75
036
030 65 10.1
036 70 8.9
048 048 80 12.2
060 060 90 12.5
HEAT PUMP
INDOOR UNIT SIZE
OUTDOOR UNIT
38QRR
PISTON SIZE
INDOOR
PISTON SIZE
OUTDOOR
CHARGE (lb)
024
018 49 40 7.5
024 55 43 7.8
036
030 65 55 12
036 70 63 13
048 048 82 73 12.2
060 060 —* 80 12.8
HEAT PUMP
INDOOR UNIT SIZE
OUTDOOR UNIT
38HDR
PISTON
SIZE
CHARGE (lb)
024
018 57 7.0
024 57 7.75
036
030 65 10.1
036 70 8.9
048 048 80 12.2
060 060 —* 12.5