Nordyne SERIES M1B Manuel D’Utilisation

17

If fuel pump fails to lift oil, check for air

port plug and repeat priming procedure.

leaks and tighten all fuel fittings. Re-
prime fuel pump by injecting fuel oil into
optional (top) return port. Replace return

Top of Tank

8 ft.

Shut-off

Valve

Optional
Fuel
Filter

Alternate

Fuel Line

Entry

Control
Panel

Oil 

Furnace

On-Off-Fan

Switch

Floor Cavity

Oil-Gun
Burner

Floor

Flue Gas

Sampling

  Hole

Drain

End of Oil Supply Line
3" to 5" Above Bottom Drain

Guide

Pipe

Gauge

Vent with cap

2" Duplex
Bushing

2" Fill

3/8" Oil Supply Line

NOTE:  Additional venting may be 
required if tank is filled rapidly.

4 GPH  100-150 PSI  3450 RPM

3 GPH  150-200 PSI  3450 RPM

VALVE ON DELAY

NO. 2 & LIGHTER FUEL

USE ONLY WITH

INLET

BY-PASS

Exclusively for Beckett

Made by Suntec

INLET

NO. 2 FUEL

A2EA-6520

Beckett 

Nozzle Port

3/16 Flare Fitting

Bypass Solenoid Valve

Cordset

Inlet Port

1/4 NPTF

Bleed & Gauge Port

Pressure Adjustment

Screw

Inlet Port

1/4 NPTF

Return Port - Install 1/6” Bypass Pipe

Plug for 2-pipe System Only.

(Use 5/32” Allen Wrench)

For L.P. gas, pressure to the gas valve must be 
more than 11” W.C. but not more than 13” W.C. 
Pressure is reduced to 10” W.C. by the pressure 
regulator in the gas valve.

Oil Tank and Piping Installation
The following procedures are recommended as 
good practice. However, requirements of local 
codes and ordinances, H.U.D. Manufactured 
Home and Safety Standards or National Fire 
Protection Association must be satisfi ed, where 
they apply, for an approved installation.

•  Use a tank capacity suitable for the application 

with a weatherproof, capped fi ll opening and 
a shielded vent to let in air as fuel is used.

•  The inside of the tank must be clean before 

fi lling. All water, rust, sediment, and debris 
must be fl ushed out.

•  A fuel or tank gauge (Figure 27) is recom-

mended for easy checking of the fuel level. 
Check the gauge reading with a dipstick.

•  Locate the storage tank conveniently near 

the home. If the fuel tank is installed above 
ground, the tank may rest 3 to 4 inches off 
the ground. Fuel tanks may also be buried if 
properly coated to resist corrosion. The vertical 
dimension from the bottom of the fuel tank to 
the fuel pump must not exceed 10 feet.

•  Keep the tank fi lled, especially in the summer 

to reduce the accumulation of condensation.

One Line System
The one line system is highly recommended 
where vertical lift, from bottom of tank to pump, 
is less than eight feet (Figure 27). A single line 
hookup has the advantage of lower cost and 
quieter operation.

Two Line System
If a two pipe system is used or if oil is taken from 
the bottom of the tank, a fi lter is recommended. 
A two line system should only be used if vertical 
lift exceeds 8 feet.
1. Install the oil feed line as outlined in steps 1 - 6 

below.

2. Install the oil pump bypass plug in the bottom 

return port.

3. Route the return line up through the furnace 

base to the return port of the pump. Route the 
other end of the line to the tank, using 3/8” 
O.D. copper tubing or 1/4” pipe with the ends 
capped.

4. Insert the return line through the second 

opening in the duplex bushing. If the bottom 
of the tank is lower than the pump intake, the 
tube should be inserted three or four inches 
from the tank bottom. If the bottom of the tank 
is higher than the pump intake, the return line 
should extend not more than 8” inside the tank.

Fuel line Hook-Up
1. Use a 3/8” O.D. copper tubing for the fuel line. 

NOTE: Cap the end with tape to keep out dirt 
while the line is being routed.

2. Install duplex bushing for two 3/8” lines in the 

top fi tting of the tank. See Figure 27.

3. Insert one end of the tubing through the duplex 

bushing until it is three to fi ve inches from the 
bottom drain. Tighten the bushing.

4. Route the line where it will not incur any 

damage. Make bends gradual and avoid kinks 
which might restrict oil fl ow.