Mueller E-Star OESE 3.5 and 5 HP HFC Condensing Unit
Installation and Operation Manual, Part No. 8828747
Effective April 13, 2020
14
7.2
OESE 5 HP, 460/60/3 WIRING SCHEMATIC (EFFECTIVE UNTIL AUGUST 31, 2007)
NOTES:
1. CAUTION: The side of the control
circuit employing the safety device
shall not be grounded.
2. Minimal 20 VA transformer
required for control voltage.
3. Use minimum of 75°C insulated
copper wire on field wiring.
4. Fan motor is internally thermal protected.
5. Connect 24-volt control wiring to
leads with supplied wire nuts.
6. Field wiring not to come in contact with control box heater.
7. All enforced electrical codes must be followed during
installation, service, and/or operation of this equipment.
DFE0155
3
2
3
1
1
2
3
4
TO CUSTOMER SUPPLIED
FUSED DISCONNECT
208–230/60/1
FAN SPEED
CONTROL
FV31-S2-15S
EFFECTIVE TO
SEPTEMBER 2002
FAN SPEED
CONTROL
FV31-S2-25S
EFFECTIVE TO
JANUARY 2002
BLACK
YELLOW
RED
FAN
CAPACITOR
BROWN
BROWN
BLUE
FAN MOTOR
BLACK
OFF-CYCLE
FAN SWITCH
FAN SPEED
CONTROL
CURRENT
HIGH PRESSURE
SWITCH
LOW PRESSURE
SWITCH
TERMINAL
BLOCK
240V
3
4
L2 L2
L1
L1
BLUE
BLUE
BLACK
CRANKCASE HEATER
BLACK
BLUE
BLUE
SEE NOTE #2
24 V CONTROL
FROM
CONTROL BOX
SEE NOTE #5
BLUE
BLUE
BL
UE
BL
UE
BLACK
BLACK
TERMINAL
BLOCK
24V
1
2
3
4
COMPRESSOR
CONTROL BOX HEATER
BLACK
YELLOW
RED
TAN/RED STRIPE
TA
N/R
ED
STRIPE
T1
T2
T3
24
V
COIL
BL
UE
BL
UE
T1
L1
T2
L2
T3
L3
A
B
BLUE
BLUE
24
V
COIL
1
0
8
4
6
2
RELAY
SWITCH
GROUND
CUSTOMER-SUPPLIED
FUSED DISCONNECT
380–420/50/3 or
460/50/3 or 460/60/3
GROUND
GROUND
GROUND
CONDENSING UNIT WIRING SCHEMATIC
FOR CONTROL CABINETS UTILIZING
24-VOLT CONTROL OUTPUT
