Reznor ADFH Operation Manual - Manual (Page 4)

Form O-ADF/RDF, P/N 148385R2, Page 4
The blower, motor and drive components are located in the blower cabinet. Remove
the panels required to access the component(s) being serviced.
Blower Bearings
All blowers are Class I with pillow block bearings. Clean the fitting and add type NLG-2
or -2 standard grade grease. Add grease with a handgun until a slight bead of grease
forms at the seal. Be careful not to unseat the seal by over lubricating.
CAUTION: If the blower is unused for more than three months, the
bearings should be purged with new grease prior to startup.
R
2.3.1 Drive Components
R E
Blower Belts
Check belts for proper tension and wear. Adjust belt tension as needed. Replace worn
belts.
Proper belt tension is important to the long life of the belt and motor. A loose belt will
cause wear and slippage. Too much tension will cause excessive motor and blower
bearing wear. If adjustment is required, adjust belt tension by means of the adjusting
screw on the motor base until the belt can be depressed 1/2" to 3/4" ( FIGURE 1).
Tighten the lock nut on the adjusting screw. Be sure the belt is aligned in the pulleys.
FIGURE 1 - Belt Tension
2.3.2 Filters If the system includes filters, check the filters quarterly.
To access the filters, remove the filter cabinet door panels. Clean or replace as needed.
If filters are removed, be sure the blockoff plates are returned to the filter rack.
3/4” (19mm)
S
2.3.3 Manifold
Gas Pressure
Semiannually, check the
gas pressure to the burner
and to the pilot. Measure
both manifold pressure and
pilot supply pressure with
the blower in operation.
Verify against pressures
listed on the rating plate.
Recommended Bearing
Lubrication Schedule
in Months
Quantity and Size of Filters by Model
Inlet Pressure Tap
Valve Valve
Regulator Manifold Pressure Tap
Gas
Supply
Pilot
Regulator Pilot Solenoid Valve
Pilot Pressure Tap
2.0 Maintenance
(cont'd)
2.3 Maintenance
Procedures
RPM
Range
Bearing Bore Diameter (Inches) NOTE: If unusual
environmental conditions exist
(temperatures below 32°F or
above 200°F; moisture; or
contaminants) more frequent
lubrication is required.
1/2 to 1 >1 to 1-1/2 >1-1/2 to 1-15/16
to 1000 6 months 6 months 6 months
1001-1500 5 months 5 months 5 months
1501-2000 5 months 4 months 5 months
Type Disposable Permanent Pleated Disposable
Thickness 1" 2" 1" 2" 1" 2"
Model RDF with Optional Filter Cabinet
1 - - (3)12x35 (4)12x35 - -
2
- - (4)12x35 (4)12x35 - -
- - (4)12x24 (4)12x24 - -
3 - - (12)12x35 (10)12x35 - -
Model ADF/ADFH with Optional Filter Cabinet
300 (5)12x30-5/8 (5)12x30-5/8 (10)10x16 (10)10x16 (5)12x32 (5)12x32
500
(5)12x20 (5)12x20 (5)12x20 (5)12x20 (5)12x20 (5)12x20
(5)12x25 (5)12x25 (5)12x25 (5)12x25 (5)12x26 (5)12x26
700, 1200
(5)12x25 (5)12x25 (5)12x25 (5)12x25 (5)12x25 (5)12x25
(5)12x30-5/8 (5)12x30-5/8 (5)12x32 (5)12x32 (5)12x32 (5)12x32
FIGURE 2 - Gas
Pressure Tap
Locations