11 PREVENTIVE MAINTENANCE CHECKLIST
Source: DPN002952, Rev. 4
Inspection Date Job Name
Indoor Unit Model # Indoor Unit Serial Number #
Room Temperature/Humidity °% Ambient Temperature °
Not all units will have all components. To determine your unit’sconfiguration, compare the Indoor Unit Model # above and
the informationin the Components and Nomenclature section.
Good maintenance practices are essential to minimizing operation cost and maximizing product life. Read and follow all
applicable maintenance checks listed below. At a minimum, these checks should be performed semi-annually. However,
maintenance intervals may need tobe more frequent based onsite-specific conditions. Reviewthe unit user manual for
further information on unit operation. We recommend the use of trained and authorized service personnel, extended service
contracts, and factory-certified replacement parts. Contact your local sales representative for more details.
Check all that apply:
Evaporator/Filters
1. Check/Replace filters
2. Grille area unrestricted
3. Wipe sectionclean
4. Coil clean
5. Cleancondensate pan
6. Cleantrap incondensate drain
7. Check/Test filter-clog switchoperation(if equipped)
Blower Section (EC fan)
1. Mounting bolts tight
2. Fan-guard bolts tight
3. Impeller spins freely
4. Check/Test air sail switch(if equipped)
5. Motor amp draw
• Compare to nameplate amps
#1 L1 L2 L3
#2 L1 L2 L3
#3 L1 L2 L3
11 Preventive MaintenanceChecklist
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