Lennox CB29M-21, Информация об устройстве

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Page 33
VII–MAINTENANCE
At the beginning of each heating/cooling season, the
system should be checked as follows:
A–Filters
IMPORTANT
Filter access panel must be in place during unit
operation. Excessive warm air entering the unit
may result in water blow–off problems.
TABLE 15
CB29M and CB30M FILTER SIZES
Unit Filter Size
CB29M / CB30M-21/26
CB29M-31
15” X 20”
(381mm X 508mm)
CB29M-41, -46, -51, -65
CB30M-31, -41, -46
20” X 20”
(508mm X 508mm)
CB30M-51, -65
20” X 24”
(508mm X 610mm)
To remove filter, loosen the thumbscrews holding
the filter panel in place. Slide filter out of the guides
on either side of cabinet, insert new filter and replace
panel. Some models come with a spacer so standard
size filters can be used. Filters should be inspected
monthly and must be replaced when dirty to ensure
proper blower coil operation. See table 15 for re-
placement filter sizes or see the sticker located on the
filter access door specifying the size of the standard
throw-away filter which is used with the unit.
B–Supply Air Blower
1- Check and clean blower wheel.
2- Motors are prelubricated for extended life; no further
lubrication is required.
C–Electrical
1- Check all wiring for loose connections.
2- Check circuit breaker located in unit control box.
3- Check for correct voltage at unit (unit operating).
4- Check amp-draw on blower motor.
Motor Nameplate_________Actual_________
5- Check to see that heat (if applicable) is operating.
D–Insulation
Outdoor piping insulation should be inspected yearly for
deterioration. If necessary, replace with same materials.
NOTES