FORM
MAINTENANCE
MOTOR
The blower motor should be cleaned annually and if it has oiling ports, it should be oiled with a good grade of SAE 20 oil. Normally a few drops of oil in each bearing is sufficient.
COIL
The coil must be kept clean by any of the following methods.
1.Cleaning with
2.Flushing or rinsing with water (a detergent is advisable for greasy surfaces).
To ensure proper maintenance of the filters, it is best to follow an organized maintenance procedure. The following one is recommended:
Divide the total number of units on the job into six equal groups. Each week inspect, clean or replace the filters in each group, in rotation. This insures a uniform servicing interval. The interval may be lengthened or shortened as determined by experience. If inspection shows only the
FILTERS
Clean or replace air filters regularly
The intervals at which filters require replacement depend on local conditions.
Because of dust and lint in the room,
Dirty filters reduce the air and heating capacities of the unit. When the filters are excessively dirty, the unit heating capacity will be so reduced that it is in- effective for heating the room. When a room fails to heat, always check the filters.
CLEAN UNIT INTERIOR
Once a year clean the fans and coils of the unit thor- oughly. Remove the access panel as necessary.
Wipe the interior of the unit clean with a rag. Wipe the motor and inside and outside of the fan housings. (In cooling units, clean out the drain pan.)
10 | JOHNSON CONTROLS |
