12
2. Two stage fuel unit. If the height difference between the burner and the fuel supply level exceeds 10
ft., a two stage unit should be used, and a return line should be installed.
B) Tubing
Use continuous heavy walled copper tubing with flare fittings only
. Locate fittings in accessible loca-
tions. If possible, tubing should be installed under the floor. Running tubing against boiler casings or
across ceiling or floor joints should be avoided.
C) In-Line Oil Filter
The oil filter should be of a generous capacity. It should be located inside the building between the tank
shut off valve and the burner. A shut off valve and the oil filter should be located as close to the burner
as possible for ease of servicing.
D) Oil Shut Off Valve
Install manual oil shut off valves at the burner and near the tank on the supply line. Both valves should
be easily accessible.
XIII FLUE SYSTEM - CHIMNEY VENT APPLICATIONS
A) General
AN OIL FIRED UNIT SHALL BE CONNECTED TO A FLUE HAVING SUFFICIENT DRAFT AT
ALL TIMES TO ASSURE PROPER OPERATION.
B) Draft
The draft regulator should be installed in accordance with the manufacturers instructions. Set the draft to
negative .02 to .04 inches W.C. in the stack.
C) Roof Clearances
The flue gas exit of the venting system should be at least 3 feet above the highest point where it passes
through the roof and at least 2 feet higher than any portion of a building with 10 feet of the venting sys-
tem.
D) Chimney Connectors
The horizontal length of a chimney connector should not exceed 10 feet unless a draft booster is used.
The connector should be pitched upward at least 1/4 inch to the foot. Use only high quality lock seam
smoke pipe. Each joint should be securely fastened with sheet metal screws. Chimney connectors should
be positioned to the shortest possible run of smoke pipe to the chimney.
E) Vent Cap
Install a U.L. listed vent cap where the possibility of down drafts exist.
F) Boiler Venting
This boiler must be vented into a properly sized chimney, or into an Underwriters Laboratories Inc. list-
ed venting device which is capable of maintaining the specified draft requirements.
As indicated in this manual, chimney sizes, draft requirements and other additional service and instal-
lation requirements are essential for safe and proper operation of the boiler.
Only a trained experienced serviceman should attempt the installation or service of any boiler and or
venting device.
To Next Page
Loading...