Carrier Streamline Scroll 69NT20-531-300 - Manual (Page 25)

T-309 2-11
LIQUID ECONOMIZER PRESSURE
ECONOMIZER
ECONOMIZER
SERVICE
CONNECTION
ESV
ECONOMIZER
TXV
LIQUID LINE
SERVICE CONNECTION
OIL SEPARATOR
RECEIVER
EVAPORATOR
CONDENSER
TXV
TXV BULB SMV
ECONOMIZER TXV BULB
LOW SIDE ACCESS VALVE
LIV
Figure 2-7 Refrigeration Circuit Schematic -- Economized Operation
LIQUID ECONOMIZER PRESSURE
TXV
TXV BULB SMV
SUCTION SERVICE
CONNECTION
USV
SUCTION
OIL SEPARATOR
RECEIVER
ECONOMIZER TXV BULB
LIV
Figure 2-8 Refrigeration Circuit Schematic -- Unloaded Operation