Page 16
II−PLACEMENT AND INSTALLATION
Make sure unit is installed in accordance with installation in
structions and applicable codes.
A−Piping
The piping system and it’s components (oil filter, safety valves,
shutoff valves, etc.) must be designed to provide clean, air
free fuel to the burner.
An oil filter is required for all models.
Use an oil filter of gener
ous capacity for all installations. Install filter inside the building
between the tank shut−off valve and the burner. Locate filter
close to burner for easy servicing. The GAR−Ber 11BV−R or
equivalent filter (with the below specifications) is recom
mended.
Maximum Firing Rate: 10GPH (38LPH)
Micron Removal: 10
Filtering Area: 500 in.
2
(3225.8 cm
2
)
Working Pressure: 15 PSI (103.4 kPa)
Inlet/Outlet Dimension: 3/8" (9.5 mm) NPT
Flow Rate: 45GPH (171LPH)
Care must be taken to ensure the restriction of the piping sys
tem, plus any lift involved, does not exceed the capabili
ty of the oil pump. Each installation will be different. Use
the following guide lines when determining to use a single or
two stage pump.
When using a single pipe system with the fuel supply level
with or above the burner (see figure 15) and a vacuum of 6"
(152 mm) Hg or below, a single stage fuel unit with a supply
line and no return line should be adequate. Manual bleeding of
the fuel unit is required on initial start up. Failure to bleed air
from the pump could result in an air lock/oil starvation condi
tion.
NOTE−As an extra precaution, cycle heating on and off
ten times after bleeding air from the pump. This will elim
inate air in the gun assembly.
When using a two pipe system with the fuel supply level
below the level of the burner (see figure 16) a single
stage fuel unit should be used in lift conditions of up to
10 feet (3 m) and/or a vacuum of 10" (254 mm) Hg or be
low. A two stage fuel unit should be used when lift ex
ceeds 10 feet (3 m) and/or a vacuum of 10" (254 mm) Hg
to 15" (381 mm) Hg. Both conditions require the use of a re
turn line that purges the fuel unit of air by returning it to the fuel
tank. Use table 8 when determining the run and lift for piping.
Before converting a onepipe system to a twopipe sys
tem the pump must be converted to a twopipe system.
To convert the pump, install the bypass plug according
to the instructions. Notice in the twopipe system the re
turn line must terminate 3" (76 mm) to 4" (102 mm)
above the supply inlet. Failure to do this may introduce
air into the system and could result in loss of prime.
NOTE−If using an outside tank in cold climates a number one
fuel or an oil treatment is strongly recommended.
FIGURE 15
OIL PIPING
ÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎ
Air Vent
Fill
Pipe
Oil
Tank
Fuel
Unit
Aux
Filter
Shut−off
Valve
8 ft (2.4 m)
Maximum
One Pipe Lift
ONEPIPE SYSTEM
FIGURE 16
OIL PIPING
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
ÎÎÎÎÎÎÎÎÎÎÎÎÎÎ
Fuel
Unit
Aux
Filter
Return
Line
Fill
Pipe
Air Vent
Oil
Tank
Inlet
Return
Line
H
3"−4"
(76mm −102mm)
R
OUTSIDE TANK FUEL UNIT ABOVE BOTTOM OF TANK.
TWOPIPE SYSTEM
TABLE 8
TWO−PIPE MAXIMUM LINE LENGTH (H + R)
3450 RPM − 3 GPH (11.4 LPH)
Lift H"
Figure 15
3/8" (10 mm) OD
Tubing
1/2" (12 mm) OD
Tubing
g
Single
Stage
Two
Stage
Single
Stage
Two
Stage
0’
(0.0 m)
84’
(25.6 m)
93’
(28.3 m)
100’
(30.5 m)
100’
(30.5 m)
2’
(0.6 m)
73’
(22.3 m)
85’
(25.9 m)
100’
(30.5 m)
100’
(30.5 m)
4’
(1.2m)
63’
(19.2 m)
77’
(23.5 m)
100’
(30.5 m)
100’
(30.5 m)
6’
(1.8m)
52’
(15.8 m)
69’
(21.0 m)
100’
(30.5 m)
100’
(30.5 m)
8’
(2.4m)
42’
(12.8 m)
60’
(18.3 m)
100’
(30.5 m)
100’
(30.5 m)
10’
(3.0m)
31’
(9.4 m)
52’
(15.9 m)
100’
(30.5 m)
100’
(30.5 m)
12’
(3.7m)
21’
(6.4 m)
44’
(13.4 m)
83’
(25.3 m)
100’
(30.5 m)
14’
(4.3m)
−−−
36’
(11.0 m)
41’
(12.5 m)
100’
(30.5 m)
16’
(4.9m)
−−−
27’
(8.2 m)
−−−
100’
(30.5 m)
18’
(5.5m)
−−−
−−−
−−−
76’
(23.2 m)
