29
FIELD POWER SUPPLY
If equipped with optional powered convenience outlet: the power
source leads to the convenience outlet’s transformer primary are
not factory connected. Installer must connect these leads accord-
ing to required operation of the convenience outlet. If an always-
energized convenience outlet operation is desired, connect the
source leads to the line side of the unit-mounted disconnect.
(Check with local codes to ensure this method is acceptable in
your area.) If a de-energize via unit disconnect switch operation of
the convenience outlet is desired, connect the source leads to the
load side of the unit disconnect. On a unit without a unit-mounted
disconnect or HACR, connect the source leads to the terminal
block with unit field power leads. See Fig. 40.
Fig. 40 — Location of TB1
Field power wires are connected to the unit at line-side pressure
lugs on the terminal block (see wiring diagram label for control
box component arrangement) or at factory-installed option non-
fused disconnect switch or HACR breaker. Use copper conductors
only. See Fig. 41.
Figure 42-48 are typical control and power wiring diagrams.
NOTE: Make field power connections directly to line connection
pressure lugs only.
Fig. 41 — Disconnect Switch and Unit
LOAD
SIDE
SEE
DETAIL
A
DETAIL
A
LINE
SIDE
BLK
YEL
BLU
CONTROL BOX
L3
L2
L1
WARNING
FIRE HAZARD
Failure to follow this warning could result in personal injury,
death, or property damage.
Do not connect aluminum wire between disconnect switch and
unit. Use only copper wire.
COPPER
WIRE ONLY
ELECTRIC
DISCONNECT
SWITCH
ALUMINUM
WIRE
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