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17
62--10458--00
OL
OVER LOAD
US
UNLOADER SOLENOID
H1
CONTROLLING HEAT CONTACTOR
TRANSFORMER
SUCTION PRESSURE SWITCH
INTERNAL PROTECTOR--COMPRESSOR
INDOOR FAN MOTOR
INDOOR FAN CONTACTOR
BACKUP HEAT CONTACTOR
TB
H2
IPC
IFM
IFC
SPS
TRAN
SW
TERMINAL BOARD
SWITCH
COMPRESSOR CONTACTOR
COMPRESSOR LOCKOUT
AUTOMATIC CUTOUT
DISCHARGE PRESSURE SWITCH
AC
CC
CL
C
F
DPS
FUSE
COMPRESSOR
AS
FAN
OFF
AIR SWITCH
LEGEND
HEAT
COOL
2
X 3
1
DOES NOT REPRESENT WIRING
INDICATES COMMON POTENTIAL,
TERMINAL/SPLICE (UNMARKED)
TERMINAL (MARKED)
LOCKOUT TERMINAL
TERMINAL BOARD TERMINAL
FIELD WIRING
FACTORY WIRING
11
21
C1 IFC
22
12
23
13
C2
DT1
DT2
DT1
C1
21
11
DT2
CC
22
C2
23
12 13
H1 H3 H2 H4
X2
X1
TRAN
CLO
1
TB1
GROUND
CONTROL BOX
MC
MANUAL (RESET) CUTOUT
F
IPF
INTERNAL PROTECTOR--FAN MOTOR
T
THERMOSTAT
C2
CHR
C1
3
6
2
5
1
4
CRANKCASE HEATER
CH
CHR CRANKCASE HEATER RELAY
CFR CONDENSER FAN RELAY
11
21
C1 CFR
22
12
23
13
C2
90MU ONLY
VIEW A--A
VIEW B--B
TB1--5
TB1--4
NC
NO
TB1--1
NO
HEAT
CONTROL PANEL
B
B
OFF
FAN COOL
O
O
C
R
L E
R
WA MER
A
A
5
4
3
2
NOTES:
1. 208--230/3/60 VOLT UNITS FACTORY WIRED
TO TRANSFORMER TERMINAL H2 (208 VOLT
TAP). FOR 230 VOLT APPLICATIONS, RE--CON-
NECT TO TERMINAL H3 (230 VOLT TAP).
460/3/60 VOLT UNITS FACTORY WIRED TO
TERMINAL H6. 400/3/50 VOLT UNITS FACTORY
WIRED TO TERMINAL H5.
2. CONNECTION POINTS AT TB--1 TERMINALS
3 & 4 MAY BE USED FOR HEAT CONTROLS.
MAXIMUM LOAD IS 250 VA INRUSH, 50 VA
SEALED.
3. SWITCH CONTACT ARRANGEMENT IS AS
SHOWN BELOW.
DUMMY TERMINAL
DT
LLS
LIQUID LINE SOLENOID
Figure 16 Component Arrangement -- 90MA/MF/MU008/012