Maintenance; Burner Maintenance; Lubrication; Air Filter - Rheem OBF Series Installation Instructions Manual

MAINTENANCE

BURNER
For proper operation, replace the
burner oil nozzle each year with the
factory recommended size and type. It
is located in the burner drawer. (See
instructions furnished with burner for
details.)
Periodically clean ignition electrodes,
blower wheel and all filters in the oil
line. Service should be performed by a
qualified service technician at least
once yearly at the beginning of the
heating season.
ACCESSORIES
RXOP-D25 PARALLEL
FURNACE KIT
For twinning two upflow oil furnaces.
PLENUM DATA
Plenum adapters are required in some
instances for use on upflow applications
when plenum and furnace size do not
match.
FURNACE PLENUM PLENUM
WIDTH WIDTH ADAPTER
(IN.) [mm] (IN.) [mm] UPFLOW
21 [533] 21 [533] —
1 1
24 ⁄ [622] 24 ⁄ [616] —
2 4
1
28 [711] 24 ⁄ [622] RXBA-AD
2
SS1-R SIDEWALL VENT
SYSTEM
This furnace is agency approved by UL,
ULC for use with the Tjernlund SS1-R
Sidewall Vent System (date code of
012204 or later) when installed in
accordance with the installation
instructions provided by Tjernlund.
Common venting with another appliance
is NOT an option when using the
Tjernlund SS1-R. The use of any other
type of power vent system is not
approved or recommended by the
manufacturer.
TWO-STAGE PUMP
For applications requiring extra lifts, two-
stage fuel pumps are available from
PROSTOCK™ as part number.
FOSSIL FUEL KITS
RXPF-F01—Use for standard heat pump
applications.
RXPF-F02—Use for TVA (Tennessee
Valley Authority) applications.
20

LUBRICATION

IMPORTANT: DO NOT attempt to
lubricate the bearings on the blower
motor. Addition of lubricants can
reduce the motor life and void the
warranty.
The blower motor is permanently
lubricated by the manufacturer and
does not require further attention.
The blower motor must be cleaned
periodically by a qualified installer,
service agency, or the oil supplier to
prevent the possibility of overheating
due to an accumulation of dust and dirt
on the windings or on the motor
exterior.
COIL
PLENUM
RXBC-A21
RXBC-A24
RXBC-A24

AIR FILTER

Filter application and placement are
critical to airflow, which may affect the
heating and cooling system
performance. Reduced airflow can
shorten the life of the systems major
components, such as motor, limits,
elements, heat exchanger, evaporator
coil or compressor. Consequently, we
recommend that the return air duct
system have only one filter location.
The most common location will be
inside the furnace or air handler or a
filter base. For systems with a return
air filter grill or multiple filter grills, can
have a filter installed at each of the
return air openings. DO NOT DOUBLE
FILTER THE RETURN AIR DUCT
SYSTEM. DO NOT FILTER THE
SUPPLY AIR DUCT SYSTEM.
If high efficiency filters or electronic air
cleaners are used in the system, it is
important that the airflow is not
reduced to maximize system
performance and life. Always verify that
the systems airflow is not impaired by
the filtering system that has been
installed, by performing a temperature
rise and temperature drop test.
The air filters must be kept clean. Dirty
filters can restrict airflow. The motor
depends upon sufficient air flowing
across and through it to keep from
overheating.
In a new house, the air filter may
become clogged within a short time
due to the presence of dust in the air
and air ducts. A dirty filter retards the
flow of air and prevents proper airflow.
Permanent filters should be cleaned
and disposable filters should be
replaced at least once a year and more
often if necessary (see User's Info.
Manual).
NOTE: Do not use high static return
air filters to replace standard furnace
filters.