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MAINTENANCE
WARNING
When servicing or repairing this equipment, use only factory-
approved service replacement parts. A complete replacement
parts list may be obtained by contacting Modine Manufacturing
Company. Refer to the rating plate on the appliance for
complete appliance model number, serial number, and
company address. Any substitution of parts or controls not
approved by the factory will be at the owner's risk.
CAUTION
Do not attempt to reuse any mechanical or electrical
controllers which have been wet. Replace defective controller.
IMPORTANT
To check most of the Possible Remedies in the troubleshooting
guide listed in Table 52.1 to 53.1, refer to the applicable
sections of the manual.
All heating equipment should be serviced before each heating
season to assure proper operations. The following items may be
required to have more frequent service schedule based on the
environment in which the unit is installed, and the frequency of
the equipment operation.
Electrical Wiring
The electrical wiring should be checked annually for loose
connections or deteriorated insulation.
Blower Assembly
The blower assembly includes the bearings, drive sheaves and
belts. Blower bearings should be checked and lubricated based
on the blower manufacturer's recommendations. Bearings
should also be checked for any unusual wear and replaced if
needed.
Drive sheaves should be checked at the same time the bearings
are inspected. Check to make sure the sheaves are in alignment
and are securely fastened to the blower and motor shafts.Belt
tension should be rechecked shortly after the unit has been
installed to check for belt stretching. After the initial start-up,
monthly checks are recommended.
Filters
If the unit is supplied with a dirty filter switch and light, clean or
replace the filters any time the dirty filter light comes on.
Units which do not have a dirty filter warning light should have
the filters checked monthly. Clean or replace if necessary. In dirty
atmospheres, filter maintenance may be required more often.
Figure 49.1 - Filter Replacement Arrangement for
STANDARD Blower Size (Model Digit 16=A through H)
B
C
B
C
75
A
A
A
A
200/225
A = 20'' x 25''
B = 16" x 25"
C = 15" x 25"
Figure 49.2 - Filter Replacement Arrangement for
EXTENDED Blower Size (Model Digit 16 = I, J, K, or L)
A
A
NON-ACCESS
SIDE
A
C
C
A
C
250/300
500/600
5-594.10
FILTER
SPACER
B
B
B
B
B
B
A
150/175
100/125
FILTER
SPACER
A
A
A
A
A
A
C
250/300
350/400
500/600
700/800
FILTER SPACER TO BE INSERTED
ON NON-ACCESS SIDE OF UNIT
A
D
FILTER
SPACER
A
A
D
A
A
A = 20'' x 25''
B = 16" x 25"
350/400
B
C = 20" x 16"
700/800
D = 15" x 25"
840/960
FILTER
SPACER
A
C
A
A
NON-ACCESS
SIDE
A
FILTER
SPACER
A
B
49
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