Mueller E-Star OESE 3.5 and 5 HP HFC Condensing Unit
Installation and Operation Manual, Part No. 8828747
Effective April 13, 2020
18
7.6
OESE CONTROL CIRCUIT RETROFIT, 24-VAC TO 240-VAC, PRE-1996 CONTROL BOXES
HIGH PRESSURE SWITCH
MANUAL OR AUTO RESET
LOW PRESSURE SWITCH
MANUAL OR AUTO RESET
BLUE
BLUE
BLUE
BLUE
BL
UE
TERMINAL
BLOCK
24V
BL
UE
BLUE
BLUE
24
V
COIL
X
ADD JUMPER BETWEEN “A” ON COIL
AND “L2” ON CONTACTOR.
REMOVE EXISTING CONDUCTOR
CONNECTED TO “A” ON COIL AND
CONNECT TO “L1” ON CONTACTOR.
REPLACE CONTACTOR
COIL WITH 240 V COIL.
COOLING RELAY SWITCH IN CURRENT
“OH” AND PRE-1996 “OE” CONTROLS
NOT UTILIZING 24 VAC CONTROL OUTPUT.
