IMM AGS-2
71
Figure 39, Piping Schematic, One of Two Circuits
CHARGING
VALVE
LIQUID
TUBING
LIQUID
SHUT-OFF
VALVE
SCHRADER
VALVE
FILTER
DRIER
SCHRADER
VALVE
SOLENOID
VALVE
SIGHT
GLASS
EXPANSION
VALVE
WATER IN
WATER OUT
DX EVAPORATOR
SUCTION
SHUT-OFF
VALVE
(OPTIONAL)
SUCTION
TUBING
SCHRADER
VALVE
DISCHARGE
TUBING
AIR
FLOW
AIR
FLOW
AIR
FLOW
CONDENSOR
ASSEMBLY
FRAME 3200
COMPRESSOR
RELIEF
VALVE
CHARGING
VALVE
RELIEF
VALVE
SCHRADER
VALVE
(HEADER)
330591001-PACKAGE
The above diagram illustrates one of the two circuits of an AGS chiller. The evaporator has
two single-pass circuits with water passing over baffles on the shell side.
The vertical and slanted coils on one side of the unit comprise a condensing circuit. Models
AGS 180C through 210C have an external economizer circuit consisting of a brazed-plate
heat exchanger and expansion valve (not shown on the above diagram).
Figure 40, Compressor-mounted Components
Compressor Relief Valve
Optical Oil Level Sensor
Mechanical High
Pressure Cutout Switch
Oil Heater