Thermo King SLXi Spectrum, Maintenance Manual

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Unit Description 5-14
Engine Operation
Continuous Mode for
µP-VI (with ETV
)
• High Speed Cool
• Low Speed Cool
• Low Speed Modulated Cool
1
• Low Speed Modulated Heat
1
• Low Speed Heat
• High Speed Heat
1
• Defrost
1 ETV operation and High Speed Heat are locked out if controller setpoint is below Fresh/Frozen temperature setting.
Continuous Mode with SR-2/SR-3
(without ETV
)
• High Speed Cool
• Low Speed Cool
• Low Speed Heat
• High Speed Heat
1
• Defrost
1
High Speed Heat is locked out if controller setpoint is below Fresh/Frozen temperature setting.
Continuous Mode with SR-2/SR-3
(with ETV
)
• High Speed Cool
• Low Speed Cool
• Low Speed Modulated Cool
1
• Low Speed Modulated Heat
1
• High Speed Modulated Cool 1
• High Speed Modulated Heat
1
• Low Speed Heat
• High Speed Heat
1
• Defrost
1 ETV operation and High Speed Heat are locked out if controller setpoint is below Fresh/Frozen temperature setting.
CYCLE-SENTRY Mode
1, 2
• High Speed Cool 3
• Low Speed Cool
3
• Null
4
• Low Speed Heat 5
• High Speed Heat
5
• Defrost
1
ETV operation is locked out during CYCLE-SENTRY operation.
2
If engine temperature, battery condition or defrost initiation requires unit start-up during Null mode, unit starts and operates
in Low Speed Heat or Low Speed Cool.
3
After initial unit start-up and unit pull-down to setpoint, the controller limits Low Speed Cool operation when the controller
setpoint is below Fresh/Frozen temperature setting. On increasing compartment temperature, the unit operates in Low Speed
Cool for a maximum of 8 minutes in an attempt to reach setpoint. If setpoint is not reached within 8 minutes, the unit will
operate in High Speed Cool until setpoint is reached.
4 Unit mode is Null when the engine temperature and battery are satisfied.
5
Null mode if setpoint is below Fresh/Frozen temperature setting.