5.Open the furnace door and connect the oil line to the intake port on the pump. Tighten other port plugs on the pump. NOTE: Verify the oil line is airtight! Air leaks can cause the pump to lose prime and will create other problems such as nozzle failure, odors, rumbling noise, and false safety shutdown.
6.Insert the short length of the copper tube level with the bottom of the duplex bushing. Form the tube into an inverted “U” to serve as a vent.
Leak Check
To eliminate problems caused by air in the oil line, all connections in the oil supply line and all plugs, nuts, and fi ttings on the pump must be airtight. NOTE: This includes the nut that covers the pressure adjustment. It is important that the
Prepare the burner for priming by attaching a clear plastic hose over the bleed port fi tting and fully opening the pump bleed port.Use a suitable container to collect purged oil.
To ensure continuous operation, use a wire to jump terminals
After the piping to the furnace is complete, all connections must be tested for leakage. This includes pipe connections at the main gas valve, emergency shutoff valve and each joint or union. The soap and water solution can be applied using a small paintbrush. If any bubbling is observed, the connection is not sealed adequately and must be retightened. Repeat the tightening and soap check process until bubbling ceases.
Priming furnaces equipped with Honeywell
R7184 primary control:
1.While the ignition is on, press for 1/2 second (or less), and release the reset button. The lockout time will be extended to 4 minutes.
2.If prime is not established within the 4 minutes, the control will lock out. Press the reset button to reset the control.
3.Repeat steps 1 & 2 (if needed) until the oil pump is fully primed.
Priming furnaces equipped with the Beckett
7505 primary control:
1.After the burner starts, press and hold the reset button until the yellow LED turns on (15 seconds). This indicates that the button has been held long enough.
2.Release the reset button. The yellow LED will turn off and the burner will start up again.
3.At burner start up, click the reset button while the igniter is still on.This transitions the control
to a dedicated pump prime mode, during which the motor, igniter and valve are powered for 4 minutes. The yellow LED will be on. NOTE: If prime is not established during the four minute pump prime mode, repeat step 3 until the oil pump is fully primed.
4.When oil fl ow is clear and free of air bubbles, close
Fuel Oil Type
Do not use fuel oil heavier than Grade No. 2. Grade No. 1 may be used where the oil supply is subject to low temperatures.
DO NOT USE GASOLINE, CRANKCASE OIL, OR ANY OIL CONTAINING GASOLINE.
WARNING:
Failure to keep supply of oil clean by various procedures described above may cause failure of certain components such as the fuel pump gears, check valve, shaft seal, or burner nozzle which may result in a burner fire.
Conversion to Propane (LP) Gas
This gas fired heating appliance was shipped from the factory for use with natural gas. However, the appliance can be converted for use with LP gas. Use the following procedure for gas conversion of the burner. See Table
Atmospheric and Direct Ignition Furnaces
1.Follow the instructions “How to Shut Off Gas” on pages 21 or 22.
2.Disconnect the gas pipe union and the electrical wires connected to the gas valve.
3.Remove the pilot tube and thermocouple from the gas valve (M1G).
4.Remove the gas valve assembly:
a.Remove screw(s) from gas valve bracket. Gas valve and spud may be removed. Orifi ce is located at the end of the spud (M1G or M1M) or remove three (3) bolts from
5.Replace the main orifi ce with the L.P. gas orifi ce supplied in the envelope located by the gas valve. Verify the orifi ce size matches the nameplate or Table 10 (page 31). NOTE: It is not necessary to convert the pilot orifi ce.
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