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Installing the Oil Lines
Your furnace installation requires two oil lines:
(1) Suction oil line: oil line and suction line components from the tank to the pump.
(2) Pressure oil line: oil line from the pump to the connector block on the furnace.
Procedures and specifications for the installation of the oil lines follow.
ATTENTION: Be sure to purchase copper tubing which is sized correctly for your installation.
Undersizing of oil lines restricts oil flow and results in poor furnace performance. Refer to the tables in
this section listing the proper sizing of the suction and pressure oil lines.
Installing the Suction Oil Line
1.
Study the specifications on the appropriate Tank/Pump installation diagram (either Figure 4E,
4F, or 4G).
2.
Make sure you have purchased all the necessary fittings to complete the installation correctly.
3.
Install the fittings and components as shown in the appropriate Tank/Pump installation diagram.
Also adhere to the following guidelines:
•
DO NOT exceed line lengths and suction limits of the pump. Keep the suction line and
suction lift as short as posssible.
Maximum suction line lift - 10 feet (or not to exceed 10" of vacuum)
Maximum horizontal run - 30 feet
•
Use properly sized copper tubing according to the following chart:
Type of Tank
Inside Tank
Outside Tank
Underground Tank
*NOTE: Maximum allowable size of tubing is 1" O.D. for all
types of tanks.
•
Ensure that the suction line is 100% airtight. The pump cannot properly suck oil from the
tank if there are any leaks in the suction oil line. Air leaks in the suction line due to improper
installation will result in repeated burner shutdown and unnecessary service calls.
•
Use only good flare fittings. DO NOT use compression fittings or pipe unions on the suction
line. The use of these inappropriate materials on the suction line will result in air leaks and
burner shutdown.
•
Seal each threaded fitting with #2 Permatex non-hardening gasket sealer or equivalent. DO
NOT use teflon tape. Teflon residues will plug vital pump and burner components and will
void your warranty.
Operator's Manual: Models CB-1400, CB-1800, and CB-2800
Minimum Size of Copper Tubing*
5/8" O.D.
3/4" O.D.
3/4" O.D.
4-17
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