Models: HB24FS
Temperature Control: Electro-mechanical
Defrost Style: Hot Gas Defrost
Cabinet Lighting: Lights are controlled through a manual on/off switch as well as
through the door switch.
LOAD
COOLING MODE
OFF MODE
DEFROST MODE
Compressor
Energized
De-Energized
Energized
Condenser Fan
Energized
De-Energized
Energized
Evaporator Fan
Energized
De-Energized
De-Energized
Hot Gas Solenoid Valve
De-Energized
De-Energized
Energized
Models: HC24BB, RB, RO, TB, TO WB
Electronic Control: Eliwell (nEW961)
Defrost Style:
Off cycle defrost
Cabinet Lighting: Lights are controlled through a manual on/off switch as well as through
the door switch.
Evaporator Fan: Is controlled by the door switch during Cooling Mode
LOAD
COOLING MODE
OFF MODE
DEFROST MODE
Compressor
Energized
De-Energized
N/A
Condenser Fan
Energized
De-Energized
N/A
Evaporator Fan
Energized
De-Energized
N/A
Models: HC24FS
Temperature Control: Electro-mechanical
Defrost Style:
Hot Gas Defrost
Cabinet Lighting:
Lights are controlled through a manual on/off switch as well as through the door switch.
LOAD
COOLING
MODE
OFF MODE
DEFROST
DELAY
(3-MINUTES)
DEFROST
(TEMP
TERMINATED)
DRIP
TIME
SIX HOUR
MANUAL
DEFROST
Compressor
Energized
De-Energized De-Energized
Energized
De-Energized
De-Energized
Condenser Fan
Energized
De-Energized De-Energized
Energized
De-Energized
De-Energized
Evaporator Fan
Energized
De-Energized De-Energized
Energized
De-Energized
De-Energized
Hot Gas
Solenoid Valve
De-Energized De-Energized Energized
Energized
Energized
De-Energized
Return to
Residential Refrigeration
and Front Venting Commercial Refrigeration
Service Manual
*Defrost is elapsed time initiated and terminated (Timer)
Table 8-6. HC24BB, RB, RO, TB, TO WB Load Operation Modes
Table 8-7. HC24FS Load Operation Modes
*Defrost is elapsed time initiated and terminated (Solid State Timer)
Electrical System Repair Instructions
Page 8-19
Table 8-5. HB24FS Load Operation Modes