Oil-fired heating systems rely on fuel-delivery components to supply oil to the burner for combustion. The Webster 22R221C-5C3 Fuel Unit is a two-stage oil pump designed to move fuel through the fuel-delivery system and support the supply required for burner operation.
Two-Stage Pumping and Fuel Delivery:
The two-stage pumping arrangement moves oil through the intended fuel-delivery path toward the burner. This pumping action supports the movement of fuel required by the combustion system during equipment operation.
Rotation, Port Position, and Flow Capacity:
The fuel unit is specified for 3450 RPM, counterclockwise rotation, a left-side port position, and a capacity of 21 GPH. These characteristics identify the unit's operating speed, rotational direction, port arrangement, and stated fuel-flow capacity, which should correspond with the requirements of the intended application.
Replacement Guidelines:
Replacement may be appropriate when a confirmed fault, fuel leakage, or physical damage prevents the fuel unit from performing its required function. Before ordering, confirm that the replacement part number and fuel-unit configuration match the existing installation.
Common Failure Symptoms:
- Reduced fuel delivery
- Inconsistent fuel flow
- Difficulty maintaining normal pump operation
- Fuel leakage
- Unusual operating noise
Equipment Compatibility:
The Webster 22R221C-5C3 Fuel Unit is intended for compatible oil-fired heating applications requiring the appropriate fuel-delivery configuration. Before purchasing, confirm that the part number, 3450 RPM speed, counterclockwise rotation, left-side port position, and 21 GPH capacity match the existing installation requirements.
Technical Specifications:
Product Identification:
Brand: Webster
Part Number: 22R221C-5C3
Product Type: Two-Stage Fuel Unit
Mechanical:
Speed: 3450 RPM
Rotation: Counterclockwise (CCW)
Port Position: Left (L)
Capacity: 21 GPH
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