Carrier ComfortLink 30GXN - Page 104

104
APPENDIX F (cont)
Condenser Fans
Condenser Coil Condenser Coil
Equalizer Line
Liquid Line
Service Valve
Strainer/
Filter Drier
Motor Cooling
Solenoid Valve
6
Discharge
Service
Valve
Back Pressure Valve
Relief Valve
2
Oil Level
Switch
Oil Filter
(External)
Loader 2 Loader 1
Oil
Pump
5
Minimum Load Control
Solenoid (Option)
Minimum Load
Control Valve
(Option)
4
Oil Filter (Internal)
3
1
Relief Valve
Suction Service Valve (Option)
EXV
Cooler Heater
(Option)
Sightglass
Dry Eye
8
7
Flow Switch
Cooler Heater
(Option)
Muffler
Oil Heater
Condenser Fans
Condenser Coil Condenser Coil
Economizer
Economizer
TXV
TXV
Solenoid
Valve
Econo. Serv.
Valve
(SSV Option)
Check
Valve
Typical System Components, 30GXN,GXR204-268 Circuit B, With Economizer
LEGEND
EXV — Electronic Expansion Valve SSV — Suction Service Valve TXV — Thermostatic Expansion
Valve
1—Suction Pressure Transducer 2—Discharge Pressure Transducer 3—Economizer Pressure
Transducer
4—Oil Pressure Transducer 5—High Pressure Switch 6—Discharge Gas Thermistor 7—Entering Water Thermistor 8—Leaving Water Thermistor
— Refrigerant Access Fitting — High Flow Schrader Valve — Backseating Service Valve
with Refrigerant Port
— Fusible Plug — Device Connection