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contactor C and indoor fan contactor IFC pressure lugs
with unit field power leads.
Refer to Fig. 18 for power transformer connections and
the discussion on connecting the convenience outlet on
page 13.
Field power wires are connected to the unit at line- - side
pressure lugs on compressor contactor C and indoor fan
contactor IFC (see wiring diagram label for control box
component arrangement) or at factory- - installed option
non- - fused disconnect switch. Max wire size is #2 AWG
(copper only). (See Fig. 14.)
NOTE: TEST LEADS - - Unit may be equipped with
short leads (pigtails) on the field line connection points on
contactor C or optional disconnect switch. These leads are
for factory run- - test purposes only; remove and discard
before connecting field power wires to unit connection
points. Make field power connections directly to line
connection pressure lugs only.
Units Without Disconnect Option
C
C
11
23
11
13
BLK
YEL
Disconnect
Disconnect
per
per
NEC
NEC
L1
L2
208/230-1-60
208/230-3-60
460-3-60
575-3-60
Units With Disconnect Option
2
L1
4
Disconnect
L2
6
L3
Disconnect factory test leads; discard.
Fig. 14 - - Power Wiring Connections
Units With Factory- - Installed Disconnect —
The factory- - installed option disconnect switch is located
in a weatherproof enclosure located under the main
control box. The manual switch handle is accessible
through an opening in the access panel.
factory test leads (see Fig. 14).
1-ph Belt Drive IFM
Direct Drive IFM
IFC
or
13
23
TB
BLU
L3
1
Optional
Factory
3
Wiring
Switch
5
C11383
Discard the
WARNING
!
FIRE HAZARD
Failure to follow this warning could result in
intermittent operation or performance satisfaction.
Do not connect aluminum wire between disconnect
switch and 558J unit. Use only copper wire.
(See Fig. 15.)
ELECTRIC
DISCONNECT
SWITCH
Fig. 15 - - Disconnect Switch and Unit
Units Without Factory- - Installed Disconnect —
When installing units, provide a disconnect switch per
NEC (National Electrical Code) of adequate size.
Disconnect sizing data is provided on the unit informative
plate. Locate on unit cabinet or within sight of the unit per
national or local codes. Do not cover unit informative
plate if mounting the disconnect on the unit cabinet.
All Units —
All field wiring must comply with NEC and all local
codes. Size wire based on MCA (Minimum Circuit Amps)
on the unit informative plate. See Fig. 14 and the unit
label diagram for power wiring connections to the unit
power terminal blocks and equipment ground. Maximum
wire size is #2 ga AWG per pole.
Provide a ground- - fault and short- - circuit over- - current
protection device (fuse or breaker) per NEC Article 440
(or local codes). Refer to unit informative data plate for
MOCP (Maximum Over- - current Protection) device size.
All field wiring must comply with the NEC and local
requirements.
All units except 208/230-v units are factory wired for the
voltage shown on the nameplate. If the 208/230-v unit is
to be connected to a 208-v power supply, the control
transformer must be rewired by moving the black wire
1
with the
/
-in. female spade connector from the 230- - v
4
connection and moving it to the 200-v
terminal on the primary side of the transformer. Refer to
unit label diagram for additional information. Field power
wires will be connected line- - side pressure lugs on the
power terminal block or at factory- - installed option
non- - fused disconnect.
NOTE: Check all factory and field electrical connections
for tightness.
12
COPPER
WIRE ONLY
ALUMINUM
WIRE
A93033
1
/
-in. male
4
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