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Manafacture: Weil-McLain File size: 495.33 kb File name: Language of manual:

Two PIPE CONNECTORS (6) are supplied with the burner for connection to either a single or two-line system. Also supplied are two ADAPTORS (3), two female .” NPT, to adapt oil lines to burner pipe connectors. All pump port threads are British Parallel Thread design. Direct connection of NPT threads to the pump will damage the pump body. Riello manometers and vacuum gauges do not require any adapters, and can be safely connected to the pump ports. An NPT (metric) adapter must be used when connecting other gauge models. SINGLE LINE (GRAVITY FEED SYSTEM) A) The burner is shipped configured for use in single line applications. No changes to the oil pump are required for use in single line applications. NOTE: If the pump cover (1) is removed for any reason, be sure the O-ring (2), is properly seated in the pump cover (1) before re-attaching the pump cover to the pump housing. B) Connect the pipe connector to the SUPPLY PORT(5) of the pump. Attach the NPT adapter to the pipe connector. Attach the required piping to this pipe adapter. Be sure that the plug in the RETURN PORT (7) is tightened securely. 1 2 3 8 7 4 5 6 4 SINGLE LINE SYSTEM-PIPE LENGTHS H 3/8” OD 1/2” OD FT M FT M FT M 1.5 0.5 33 10 65 20 3.0 1.0 65 20 130 40 5.0 1.5 130 40 260 80 6.5 2.0 195 60 325 100 H P ATTENTION: D6009 do not exceed pipe lengths indicated in chart! GB TWO LINE (LIFT SYSTEM) A) If a two-line system is required, install the By-pass plug provided. The by-pass plug is installed in the return port of the pump. A 2.5-mm hexagonal key provided with the by-pass plug is to be used to install the plug. DO NOT use an inch size hexagonal key; damage to the by-pass plug may result. When operating on a two-line system, supply and return lines should be the same diameter and both should extend to the same depth inside the fuel tank. Be sure there are no air leaks or blockages in the piping system. Any obstructions in the return line will cause failure of the pump shaft seal. 2 LINE (LIFT) SYSTEM-PIPE LENGTHS H 3/8” OD 1/2” OD FT M FT M FT M 0.0 0.0 115 35 330 100 1.5 0.5 100 30 330 100 3.0 1.0 80 25 330 100 5.0 1.5 65 20 295 90 6.5 2.0 50 15 230 70 9.5 3.0 25 8 100 30 11 3.5 20 6 65 20 ATTENTION: do not exceed pipe lengths indicated in chart! To install the by-pass plug: 1) Remove the return plug (7). 2) Install the by-pass plug (4) using the 2.5 mm hexagonal key. B) Attach the two PIPE CONNECTORS (6) to the pump SUPPLY and pump RETURN PORTS (5 and 7). Attach the required piping to these two pipe connectors using the NPT/ METRIC ADAPTERS that are supplied with the burner. D6008 H P H WARNING: -Pipe dope or Teflon tapes are NOT to be used on any direct oil connection to the fuel pump. - The height ‘P’ in Pipe Length Charts should not exceed 13 feet (4 m). - The vacuum should not exceed 11.44 inches of mercury. IMPORTANT: An external, appropriately listed and certified oil filter must be placed in the fuel line between the fuel tank and the burner pump. PUMP PURGE NOTE: To protect the pump gears, it is advisable to lubricate the pump prior to purging a lift system. Apply oil through the VACUUM PORT (C). A) SINGLE LINE (GRAVITY FEED SYSTEM) I. Loosen the bleeder valve (A) until oil flows out. Tighten the bleeder valve securely and startburner. II. When bleeding the pump by pressure: 1) Loosen the bleeder valve (A). 2) Disconnect nozzle oil supply line at the pump nozzleport (B). 3) Attach a flexible plastic tube to the pump nozzle, port directing the oil flow into a bucket. 4) Loosen the screw(s) securing the air tube cover, allowing it to be re moved freely. 5) Holding the air tube cover in its proper location start the burner. 6) When the solenoid valve is engaged approximately 10 seconds after starting, remove the air tube cover and shine a light source on the photocell, allowing it to see false light. D7284 C A B 3223 10 GB 7) Run the burner until the fuel pump has been purged of air, then tighten the bleeder valve and immediately shut down the burner. 8) Reinstall the air tube cover and nozzle line. 9) The burner can now be started normally. WARNING: Omitting steps 2 and 3 will result in a collection of unburned oil in the combustion chamber creating a hazardous situation upon burner startup. B) TWO LINE (LIFT SYSTEM) Turn off the main power source to the burner and remove the air tube cover. Shines a light source on the photocell (now visible where the air tube cover was removed), return power to the burner and activate the burner. With the light source in place, the burner will operate in prepurge only. When the pump is sufficiently purged, the hydraulic air shutter will open. Once the burner is purged, turn off the power source and replace the air tube cover. Return power to the burner. The burner is now ready to operate. ATTENTION: It is important that the fuel line be completely sealed and free from air leaks or any internal blockages. WARNING! WHEN THE BYPASS PLUG IS INSTALLED, A TWO-PIPE SYSTEM MUST BE USED OR FAILURE OF THE PUMP SHAFT...

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