8
A GRAVITY FEED, SUPPLY LINE ONLY, INSTALLATION
FIGURE 10.
If the bottom of the oil tank is at least 2 inches higher than the plug opening at
which the supply line connects to the fuel pump, a single-line gravity-feed system
with 3/8" O.D. tubing may be used with a maximum run length of 100 feet.
• A two stage pump may be used on one line, gravity feed installations.
The pump will function as a single stage unit when the by-pass plug
is not installed.
• Single Stage, Supply and Return Lines. This type of system,
fig. 11, is self-priming. Burner Series No. 940 with by-pass plug field
installed, is for this type of service.
If the tank bottom is no lower than 10 feet below the plug, a single stage
pump may be used but, it must be a two line system with maximum tubing
runs (which includes lift) as shown in Table 6.
A SINGLE STAGE (LOW LIFT), SUPPLY AND RETURN
LINE INSTALLATION - FIGURE 11.
TABLE 6.
Distance Max.
Distance Max.
Tank Run length
Tank Run Length
Bottom Ft. (M)
Bottom Ft. (M)
Below
Below
Pump
3/8" 1/2"
Pump 3/8"
1/2"
Plug
O.D. O.D.
Plug O.D. O.D.
Ft. (M)
Tubing Tubing
Ft. (M)
Tubing
Tubing
1 (0.3)
66 (20.1) 100 (30.4)
6 (1.8)
36 (10.9) 100 (30.4)
2 (0.6)
55 (16.7) 100 (30.4)
7 (2.1)
31 (9.4) 100 (30.4)
3 (0.9)
50 (15.2) 100 (30.4)
8 (2.4)
26 (7.9) 100 (30.4)
4 (1.2)
45 (13.7) 100 (30.4)
9 (2.7)
21 (6.4)
83 (25.2)
5 (1.5)
40 (12.1) 100 (30.4)
10 (3.0)
16 (4.8)
64 (19.5)
Two Stage, Supply and Return Lines: This system, fig. 12, is required when
long lines and high lifts (requiring up to 20" of vacuum and 10' vertical lift) are
encountered. Burner Series No. 941 is used in this service. Bypass plug must
be installed.
A TWO STAGE (HIGH LIFT), SUPPLY AND RETURN
LINE INSTALLATION - FIGURE 12.
If the tank(s) bottom is lower than the plug by more than 10 feet, a two
stage pump with a two line system must be used with maximum tubing
runs (which includes lift) as shown in Table 7.
TABLE 7.
Distance Max.
Distance Max.
Tank Run length
Tank Run Length
Bottom Ft. (M)
Bottom Ft. (M)
Below
Below
Pump
3/8" 1/2"
Pump 3/8"
1/2"
Plug
O.D. O.D.
Plug O.D. O.D.
Ft. (M)
Tubing Tubing
Ft. (M)
Tubing
Tubing
1 (0.3)
74 (22.5) 100 (30.4)
9 (2.7)
51 (15.5) 100 (30.4)
2 (0.6)
71 (21.6) 100 (30.4)
10 (3.0)
48 (14.6) 100 (30.4)
3 (0.9)
69 (21.0) 100 (30.4)
11 (3.3)
45 (13.7) 100 (30.4)
4 (1.2)
66 (20.1) 100 (30.4)
12 (3.6)
42 (12.8) 100 (30.4)
5 (1.5)
63 (19.2) 100 (30.4)
13 (3.9)
39 (11.8) 100 (30.4)
6 (1.8)
60 (18.2) 100 (30.4)
14 (4.2)
37 (11.2) 100 (30.4)
7 (2.1)
57 (17.3) 100 (30.4)
15 (4.5)
34 (10.3) 100 (30.4)
8 (2.4)
54 (16.4) 100 (30.4)
MULTIPLE HEATER FUEL LINES
Where two or more heaters form a water heating system, each burner shall
have an entirely separate oil supply line from the tank to the burner.
BURNER INSTALLATION
GENERAL
An oil Burner Certificate is packed with the oil burner. Following the burner
manual installation the necessary tests shall be performed and the results
recorded on the certificate, see BURNER CERTIFICATE. The certificate and
this instruction manual must be left with the user for future reference. Check
to be certain the heater and burner model numbers are alike and the oil
pump characteristics are proper for the job. See IDENTIFICATION, page 3.
BURNER
The burner assembly is mounted on the flange of the combustion chamber,
fig. 13.
NOTE: Be certain combustion chamber opening is aligned with opening
in heater flange, fig. 13, before placing burner into heater .
1. Place the flange gasket and combustion chamber seal over the burner tube.
2. Place the burner flange on the studs and into the heater flange opening.
ASSEMBLY OF THE OIL BURNER TO THE HEATER
FIGURE 13.
3. Place the flat washers and lock washers over the studs and fasten the
burner in place with the 3/8" - 16 nuts as shown.
Connect the oil line(s) and electrical wires to the burner as follows:
1. The oil pump manufacturer's instructions should be checked for
connection and bleeding information.
