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V- SYSTEMS SERVICE CHECKS
A-Cooling System Service Checks
ZCC units are factory charged and require no further ad-
using the approach method. The approach method com-
pares actual liquid temperature with the outdoor ambient
NOTE-When unit is properly charged discharge line pres-
sures should approximate those in tables 4 through 7.
VI-MAINTENANCE
service technician.
WARNING
Electric shock hazard. Can cause injury or
death. Before attempting to perform any
Unit may have multiple power supplies.
CAUTION
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after
servicing.
IMPORTANT
The Clean Air Act of 1990 bans the intentional
venting of refrigerant (CFC’s and HCFC’s) as of July
1, 1992. Approved methods of recovery, recycling
or reclaiming must be followed. Fines and/or
incarceration may be levied for non-compliance.
A-Filters
-
fer to local codes or appropriate jurisdiction for approved
WARNING
Units are shipped from the factory with temporary
NOTE-Filters must be U.L.C. certied or equivalent for
use in Canada.
BACK OF UNIT
FILTER ACCESS PANEL
LIFT UP AND PULL
OUT (TOOLLESS)
FIGURE 14
SLIDE FILTER STOP UP
TO REMOVE FILTERS
FIGURE 15
B-Lubrication
All motors are lubricated at the factory. No further lubrica-
tion is required.
C-Evaporator Coil
Inspect and clean coil at beginning of each cooling season.
Clean using mild detergent or commercial coil cleanser.
D-Condenser Coil
Clean condenser coil annually with water and inspect
monthly during the cooling season.
Note - Do not use commercial coil cleaner on the all alu-
minum coil. Using anything other than water could result
in corrosion and/or leaks.
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