Unit Description
28
Thermo King X430L
Reciprocating Compressor
The unit is equipped with a Thermo King X430L reciprocating
compressor with 30 cu. in. (492 cm
3
) displacement.
Electronic Throttling Valve
The Electronic Throttling Valve (ETV) is optional on the
SB-210+ and standard on the SB-310+.
The ETV provides enhanced control of the refrigeration system
as follows:
• Allows the refrigeration system to fully utilize the power
capabilities of the engine under varying conditions
• Provides an additional measure of protection against high
discharge pressures
• Protects the engine from high coolant temperature
shutdowns
• Provides a means of precise temperature control.
You can tell if the unit has an ETV by looking at the
compressor. Units with an ETV have a suction valve adapter.
Units without an ETV have a mechanical throttling valve.
1. Suction Valve Adapter (Has ETV)
2. Mechanical Throttling Valve (No ETV)
Figure 9: Compressors
1 2
Unit Description
28
Thermo King X430L
Reciprocating Compressor
The unit is equipped with a Thermo King X430L reciprocating
compressor with 30 cu. in. (492 cm
3
) displacement.
Electronic Throttling Valve
The Electronic Throttling Valve (ETV) is optional on the
SB-210+ and standard on the SB-310+.
The ETV provides enhanced control of the refrigeration system
as follows:
• Allows the refrigeration system to fully utilize the power
capabilities of the engine under varying conditions
• Provides an additional measure of protection against high
discharge pressures
• Protects the engine from high coolant temperature
shutdowns
• Provides a means of precise temperature control.
You can tell if the unit has an ETV by looking at the
compressor. Units with an ETV have a suction valve adapter.
Units without an ETV have a mechanical throttling valve.
1. Suction Valve Adapter (Has ETV)
2. Mechanical Throttling Valve (No ETV)
Figure 9: Compressors
1 2
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