134
Refrigeration Service Operations
NOTE: The following procedures involve
servicing the refrigeration system. Some of these
service procedures are regulated by Federal, and
in some cases, by State and Local laws.
In the USA all regulated refrigeration service
procedures must be performed by an EPA
certified technician, using approved equipment
and complying with all Federal, State and Local
laws.
Refrigeration System
Component Locations
The following drawings show the locations of
various refrigeration system components. Most of
the refrigeration system components are located in
the refrigeration cluster on the lower curbside of
the unit. This allows good access from the front
and side for maintenance, diagnosis, and repair.
ARA1974
7
8
2
3
4
6
5
10
12
1
9
13
14
15
11
1.
Suction Pressure Transducer
9.
Suction Vibrasorber
2.
Discharge Pressure Transducer
10.
Discharge Vibrasorber
3.
Hot Gas Bypass Valve
11.
Pilot Solenoid
4.
Three-Way Valve
12.
Bypass Check Valve
5.
Filter-Drier 13.
Accumulator
6.
Receiver Tank Outlet Valve
14.
Bypass Service Valve
7.
Condenser Check Valve
15.
Receiver Tank Sight Glass
8.
ETV
Figure 215: Front Left View of Refrigeration Cluster
