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 Table of Contents
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