AAON RM-030 - Manual (Page 14)

14
SERVICING, TROUBLE SHOOTING & MAINTENANCE
LUBRICATION
All original blower motors and bearings are furnished
with an orginal factory charge of lubrication. Some
applications will require that bearings be re-lubricated
periodically. The schedule will depend on the operating
duty, temperature variations or other harsh atmospheric
conditions.
Bearings should be re-lubricated when at normal oper-
ating temperatures, but not during operation. Rotate
the fan shaft manually and add minimum lubricant
required to purge the seals. DO NOT OVERLUBRICATE.
Recommended lubricants are:
SHELL OIL - DOLIUM R
CHEVRON OIL - SRI No. 2
TEXACO INC. - PREMIUM RB
SERVICE
If the unit does not function properly and service is
required, service technicians qualified and experienced
in both gas, electric heating and air conditioning are
permitted to provide service to keep warranties in effect.
The service technician should call the factory if assis-
tance is required.
SERVICE TECHNICIAN MUST PROVIDE THE
MODEL AND SERIAL NUMBER OF THE SPECIFIC
UNIT TO CUSTOMER SERVICE TO ASSURE A COR-
RECT DIAGNOSIS.
AAON, Inc.
Phone: 918-583-2266
Fax: 918-382-6364
Customer Service Department
COMMON CAUSES OF REDUCED AIR FLOW
A. DIRTY FILTERS - Filters must be inspected and
replaced on a regular basis. It is strongly recommended
that the media be replaced monthly. Clean filters are
your best protection against premature system break-
down.
Do not operate the unit without the filters in place.
Operation of the unit without filters will result in a
clogged evaporator coil - a very expensive service prob-
lem to resolve.
B. OBSTRUCTION TO AIR FLOW - Supply and
return air grilles must be kept clear so air can be freely
discharged from and drawn into the system.
CLEANING
Inspect unit interior at the beginning of each heating
and cooling season and as operating conditions require.
COILS
Evaporator coil(s) should be inspected and cleaned an-
nually to ensure there is no obstruction to air flow.
Condenser coil(s) should be inspected monthly. Clean
condenser coils annually or as required by location and
outdoor air conditions.
CONDENSATE DRAIN
Check and clean annually at start of cooling season.
BLOWER
Inspect blower and blower section to keep free of dust or
debris.
TURN OFF POWER BEFORE ATTEMPTING TO
CLEAN BLOWER WHEEL.
▲
! WARNING
ELECTRIC SHOCK HAZARD.
Shut off all electrical power to unit to avoid
shock hazard or injury from rotating parts.
Typical slide-out blower section