Form O-Y, PN 273647R5, Page 12
Model JDHA 120 and 150 (Cabinet 1)
Circuit A
Condenser Coil
Circuit B
Condenser Coil
Circuit A
Circuit A
Circuit A
Circuit A
Circuit B
Circuit B
Circuit B
Circuit B
View from Compressor and
Condenser Section
Evaporator Coil
with intertwined
Circuits A & B
Solenoid Valve
Filter
Drier
Filter
Drier
View from Cooling Cabinet Door
(Evaporator Coil Side)
TXV
Valves
Evaporator
Coil
Modulating
Compressor
(Circuit A)
Compressor
(Circuit B)
Equalizer
Tubes
Circuit A
Circuit B
FIGURE 9 - Cooling
Circuits - Models
YDHA and YDMA
Sizes 120 and 150
Model JDHA 180, 210, and 240 (Cabinet 2)
Circuit A
Condenser Coil
Circuit B
Condenser Coil
Circuit A
Circuit A
Circuit A
Circuit A
Circuit B
Circuit B
Circuit B
Circuit B
View from Compressor and
Condenser Section
Evaporator
Coil with
intertwined
Circuits A & B
Solenoid Valve
Filter
Drier
Filter
Drier
View from Cooling Cabinet Door
(Evaporator Coil Side)
TXV
Valves
Evaporator
Coil
Modulating
Compressor
(Circuit A)
Compressor
(Circuit B)
Equalizer
Tube
Equalizer
Tube
FIGURE 10 - Cooling
Circuits - Model YDSA
Sizes 120 and 150;
Models YDHA and
YDMA Sizes 180, 210,
and 240
FIGURE 11 - Cooling
Circuits - Model YDSA
Sizes 180 and 210
View from Cooling Cabinet Door
(Evaporator Coil Side)
Equilizer Tube
Filter Drier
Circuit A
Circuit B
TXV
Valves
View from Compressor and
Condenser Section
Circuit B
Compressor
(Circuit B)
Condenser Coil
Circuit B
Condenser Coil
Circuit
A
Compressor
(Circuit A)
Circuit A
Filter Drier
Filter Drier
Circuit A
Circuit A
Circuit B
Evaporator Coil
Evaporator Coil
with Intertwined
Circuits A & B
Model YDSA 180 and 210 (Cabinet 3)
3.0 Maintenance and Service Procedures - Unit & Cooling (cont'd)
3.5 Coils and Related Components (cont'd)
