2.
Use the correct size fuse or circuit breaker as listed on the
unit rating plate and data sheet. See data sheet for mini-
mum recommended wire size. If using nonmetallic-
sheathed cable (NM or NM-B) ampacities shall be that of
60°C conductors per NEC 336-26.
3. Wiring
connections.
Two are provided in the control box:
a. One for low voltage wiring.
b. One entrance for high voltage Ll and L2
The reversible High Voltage Conduit Plate is factory
installed for 1/2" conduit connections. For 3/4" conduit,
remove the screw holding the plate in place and reverse
the location of the holes. For 1" conduit, remove the
conduit plate and discard. Re - install screw to maintain
the integrity of the unit structure, regardless of the
conduit being used. See Figures 3 and 4.
4. Power connection to the unit is facilitated by screw termi-
nals, marked Ll and L2 on the outdoor unit contactor. See
Figures 3 and 4.
5. Ground the outdoor unit using the ground lug provided.
Unless the outdoor unit is grounded through proper wiring
to the service entrance ground, a suitable separate ground
should be provided at the outdoor unit.
C O N T A C T O R
S T A R T R E L A Y
( N o t o n a l l M o d e l s )
F A N
M O T O R
P L U G
D U A L
R U N / F A N
C A P A C I T O R
S T A R T
C A P A C I T O R
( N o t o n a l l M o d e l s )
" F I N G E R E D " B U S H I N G
G R O U N D L U G
L O W
V O L T A G E
B O X
R E V E R S I B L E H I G H V O L T A G E C O N D U I T P L A T E
L1
L2
FIGURE 3 - TYPICAL CONDENSING UNIT CONTROL BOX
C O N T A C T O R
S T A R T R E L A Y
( N o t o n a l l M o d e l s )
F A N
M O T O R
P L U G
D U A L
R U N / F A N
C A P A C I T O R
S T A R T
C A P A C I T O R
( N o t o n a l l M o d e l s )
" F I N G E R E D "
B U S H I N G
G R O U N D L U G
L O W
V O L T A G E
B O X
R E V E R S I B L E H I G H V O L T A G E C O N D U I T P L A T E
L1
L2
FIGURE 4 - TYPICAL CONDENSING UNIT CONTROL BOX
(Start Components Shown)
(Start Components Shown)
550.46-N1YI
Unitary Products Group
5
