4
Typical Single-Zone System Components
Indoor Unit
Wireless Remote
Control
Filter
Return Air
Supply Air
Indoor unit wiring connections
Outdoor Unit
018-024 shown
Utility
Bundle
208/230V Outdoor Unit
Terminal Block
To Indoor
Unit
To Power
Supply
Access cover
for terminal block
IMPORTANT - The refrigerant
metering device for this system is
located in the outdoor unit. This
makes it necessary to insulate the
refrigerant lines individually to
prevent sweating.
UV-rated tape (field-provided)
Wiring
Condensate drain line
(wrapped in foam insulation)
Refrigerant Line Set, Condensate Line
And Indoor / Outdoor Cable
(field-provided)
Tape
Line set
(wrapped in foam insulation)
Communication cable
036 and 048 only
TO INDOOR COMM. BUS
XT2
LLEY WO
ARG Y
S1
S2
NOTE：
shielded wire
Use 2-conductor
Communication Cable
036 and 048 only
1 2 3 L1 L2
Condensate drain
from Indoor Unit
Liquid and vapor shut off valves
IMPORTANT - Condensate drain line must always
be located at the bottom of the
bundle.)
Figure 1.
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