Manual

OPERATING THE BOILER

I DO NOT TAMPER WITH THE UNIT OR CONTROLS

IMPORTANT - You or your installer must follow these instructions carefully.

STARTING: Fill the entire system with water. Vent all air from the system following the

section for FILLING THE BOILER.

FUEL UNITS AND OIL LINES: Install oil line(s) to the oil burner. Recommend using heavy

wall copper tubing and flared fittings, not compression fittings. All connections and joints

must be absolutely airtight. Use an appropriate non-hardening thread sealing compound on

the threaded connections, not Teflon tape. See fuel unit data sheet furnished with the burner

for sizing, lift, and length of tubing recommendations.

The original equipment oil burner (when furnished) is equipped with a single-stage fuel unit

with the by-pass plug removed for single pipe installation. This is satisfactory where the fuel

supply is on the same level as, or above the burner, permitting gravity flow of oil. Per NFPA-

31 requirements, never exceed 3 psig pressure to the inlet side of the fuel unit. When it is

necessary to lift the oil to the burner, a two-pipe installation is required. Run a return line

between the fuel unit and the oil supply. When a two-pipe installation is used, the by-pass

plug (furnished with the burner) must be installed in the fuel unit. Refer to the fuel unit

instructions furnished with the burner for specific instructions on installing the by-pass plug.

Do not exceed the fuel unit manufacturer's recommendations for running vacuum. (Note: If lift

exceeds 14 feet for Beckett or Carlin burners or 11 feet for Riello burners, a two-stage fuel

unit is required with a return line.)

Install an oil filter of adequate size inside the building between tank shutoff valve and the oil

burner. For ease of servicing, locate the shutoff valve and filter near the oil burner.

AIR SUPPLY FOR COMBUSTION: Do not install the boiler in rooms with insufficient air,

unless corrective steps are taken. Occasionally, it is necessary to install windows or cut

holes in a door to rooms used for supply air to obtain sufficient combustion air and prevent

less than atmospheric air pressure in that room. If there is a lack of combustion air, the

burner flame will be dark orange and the formation of soot will occur in the heating unit. In

buildings of conventional frame, brick, or stone construction that do not have utility rooms,

basement windows, or stair doors, air infiltration is normally adequate to provide enough air

for combustion and for operation of the barometric draft control. The room used for

supplying combustion air should be isolated from any area served by exhaust fans. Refer

back to the section on FRESH AIR FOR COMBUSTION for additional sizing guidelines.

DRAFT REGULATORS: A barometric draft regulator is required for controlling the draft

through the boiler. The barometric draft regulator is mounted in the chimney connector. Refer

back to the section on CHIMNEYAND CHIMNEY CONNECTIONS. Once the draft regulator

is installed, use a draft gauge to adjust to the proper opening: combustion chamber over fire

draft will be approximately a -0.01" WC to - 0.02" WC and the stack draft will be approxi-

mately -0.02" WC. to -0.04" WC. On a larger installation, a greater draft will be required in

the stack to obtain the desired over fire draft.