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12
Electrical Schematics
Models 125, & 150 - 115V/60 Hz (I-Controller Level 2)
Model 125 & 150 - 208-230V/60 Hz; 220-240V/50 Hz (I-Controller Level 2)
Legend
SW - ON/OFF Switch 2FU - Primary Fuse
CON - Contactor 3FU - Primary Fuse
TR1 - Transformer Control 1FU - Secondary Fuse
MTR - Compressor DRN1 - Drain Solenoid - Standard
1FM - Fan Motor DRN2 - Drain Solenoid (Oil Coalescing Option)
2FM - Fan Motor (RNC300-750 Only) EDD1 - Electric Demand Drain
1FPS - Fan Pressure Switch Fan 1 EDD2 - Electric Demand Drain (Oil Coalescing Option)
2FPS - Fan Pressure Switch Fan 2 (RNC300-750 Only) TC1/TC2/TC3 - Temperature Sensor, Thermistor
LPCO - Low Pressure Cutout Switch CAP - Start Capacitor
HPCO - High Pressure Cutout Switch TB - Terminal Block
SSMP - Solid State Motor Protection SR - StartRelay
HTR - Crankcase Heater FM - Fan Motor
OL - Overload
CUSTOMER CONNECTION/
POWER CORD
SR
CON PE
CON PE
BLU
BLU
1
2
GROUND
DRN1
DRN2
1
L
N
FM
2
FM
FM
FPS
M
R
CON N
NEUTRAL
LINE
BRN
2
BRN
CON L1
1
CON
L1
2
N
N
N
2
FM
1
L
L
SW
1
C
L3
2
CAP
SR
S
S
MTR
OL
1
3
NOT USED
ON WATER-COOLED UNITS
COIL
COMP
ON
DRAIN
NEUTRAL
DRAIN
TC1
TB 5
N
L
P
IC2 OPTION
BOARD ADDITION AND DRAINS
(SEE OPTION NOTES)
CUSTOMER CONNECTION/
POWER CORD
SW
FM
SR
CAP
FPS
MTR
C
R
M
S
3
1
OL
SR
S
L3
TB 1
TB PE
TB 2
TB 4
TB 3
TB PE
DRN1
DRN2
BRN
BRN
2
L
N
2
FM
1
1
FM
FM
2
2
1
N
L
2
1
BLU
BLU
L
N
1
LINE
NEUTRAL
GROUND
2
NOT USED
ON WATER-COOLED UNITS
L
N
P
DRAIN
DRAIN
NEUTRAL
COMP
ON
TB 5
TC1
Optional Notes:
1. IC2-Includes IC2 Instrument Panel and Timed Solenoid Drains.
2. IC3-Includes IC3 Control Panel and Demand Drains
3. DRN2-Optional Cold Coalescing Drain
4. 575-3-60 Supplied from equipment mounted transformer
5. Water-Cooled units: Fan Motor(s) and Fan Pressure Switch(es) are removed.
Summary of Contents for CRN Series
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