Page 23
507111-02 2/2015
Service
The unit should be inspected once a year by a qualified
service technician.
CAUTION
Label all wires prior to disconnection when servic
ing controls. Wiring errors can cause improper and
dangerous operation. Verify proper operation after
servicing.
WARNING
The State of California has determined that this
product may contain or produce a chemical or
chemicals, in very low doses, which may cause se
rious illness or death. It may also cause cancer,
birth defects, or reproductive harm.
A - Lubrication
All motors are lubricated at the factory. No further
lubrication is required.
B-Compressor
If Interlink compressor replacement is necessary, call
1-800-4-LENNOX (1-800-453-6669).
IMPORTANT
Some scroll compressors have an internal vacu
um protector that will unload scrolls when suc
tion pressure goes below 20 psig. A hissing
sound will be heard when the compressor is run
ning unloaded. Protector will reset when low
pressure in system rises above 40 psig. DO NOT
REPLACE COMPRESSOR.
C - Filters
Units are equipped with temporary filters which must be
replaced prior to building occupation. See table 11 for
correct filter size. Refer to local codes or appropriate
jurisdiction for approved filters.
To change filters, open filter access panel on back side
of unit. See figure 14. Lift filter stop to remove filters.
See figure 15.
WARNING
Units are shipped from the factory with temporary
filters. Replace filters before building is occupied.
Damage to unit could result if filters are not re
placed with approved filters. Refer to appropriate
codes.
Approved filters should be checked monthly and
replaced when necessary. Take note of air flow direction
marking on filter frame when reinstalling filters. See
figure 15.
TABLE 11
UNIT FILTERS
Unit
Qty
Filter Size - inches (mm)
ZHA036, 048
4
14 X 20 X 2 (352 X 508 X 51)
ZHA060, ZHB036
4
16 X 20 X 2 (406 X 508 X 51)
ZHB048, 060
2
Each
16 X 20 X 2 (406 X 508 X 51)
20 X 20 X 2 (508 X 508 X 51)
NOTE-Filters must be U.L.C. certified or equivalent for
use in Canada.
FIGURE 14
BACK OF UNIT
FILTER ACCESS PANEL
LIFT UP AND PULL
OUT (TOOLLESS)
FIGURE 15
REMOVE FILTERS
SLIDE FILTER STOP UP
TO REMOVE FILTERS
