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SECTION 5
SERVICE
Beware of unannounced starting of the unit. The unit may cycle the fans and compressor unex-
pectedly as control requirements dictate. Press OFF key on the Cab Command. Verify that it is
impossible for the unit to automatically start-up during maintenance.
Use proper Lockout/Tagout procedures before inspecting or servicing this unit.
All maintenance services must be done by a technician trained on Carrier products respecting
all safety and quality standards of Carrier.
To avoid damage to the earth’s ozone layer, use a refrigerant recovery system whenever removing
refrigerant. When working with refrigerants you must comply with all local government environmental
laws, U.S.A. EPA section 608.
5.1 MAINTENANCE SCHEDULE
A comprehensive maintenance program is required in order to optimize the life and reliability of your unit. The rec-
ommended scheduled maintenance intervals and categories are provided in Table 5–1. A service message will
appear on the Cab Command display (the running hours of the unit can be found inside the Data menu: 1 on the
display = 10 Hrs). Descriptions of the service procedures to be carried out under each category are provided in
Table 5–2.
Table 5–1 Maintenance Schedule
Hours displayed Running hours Initial service Service A Service B
10 100 X
100 1000 X
200 2000 X X
300 3000 X
400 4000 X
500 5000 X X
600 6000 X
700 7000 X
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