Advertisement
AIR SUPPLY FOR COMBUSTION
A burner shall not be installed in an area where facilities for normal air circulation or infiltration are so limited as to
interfere with ready obtainment of all air necessary for proper combustion and venting. When the heating appliance
is installed in a confined space, two permanent openings shall be provided. One near the top of the enclosure and
one near the bottom. Each opening shall have a free area of not less than one square inch per 1000 BTU per hour
(140 square inch per gph) of the total input rating of all the appliances in the enclosure. When the house is out of
unusually tight construction, has a kitchen ventilating system, exhaust fans, clothes dryer or vented fireplaces, it is
recommended that combustion air be supplied through two permanent openings. The openings shall communicate
directly, or by means of ducts, with outdoors or to such spaces (attic or craw) that freely communicate with outdoors.
For additional information, refer to ANSI standard NFPA 31.
CHIMNEY
Follow the recommendations of the appliance manufacturer. A chimney shall be capable of producing a draft as
required by the appliance and as recommended by the appliance manufacturer. It must be properly designed, of ade-
quate size, and should be above the surrounding objects, tile-lined, with no obstructions, and be in good state of
repair. The smoke pipe should set flush with the inside of tile and be cemented in place. All cleanout doors should be
sealed. A draft inducer may be used to overcome inadequate draft conditions. If a draft inducer is used, provisions
must be made to insure the burner does not operate if the draft inducer fails.
DRAFT REGULATORS
A draft regulator shall be provided unless otherwise specified by the appliance manufacturer. The draft regulator shall
be installed in accordance with local codes and regulations or in the absence of local codes, with the American
National Standard NFPA31. Refer to appliance manufacturer's instructions for recommended overfire and stack draft.
NOZZLE
Use the proper size, type and spray pattern nozzle that heater manufacturer recommends. In some cases of upgrad-
ing or conversion installations, the use of an 80˚ Hollow or solid nozzle is the best way to start with. To install nozzle,
loosen clamping screw on the retention ring assembly and slide the assembly off the adapter. Install and tighten the
nozzle in the adapter. Be careful not to damage the electrode insulators, or bend the electrodes. Replace the reten-
tion ring assembly on the adapter, make sure the clamp is tight against the shoulder on the adapter, tighten the clamp-
ing screw. Check the electrode setting. (See Figure 3, page 6.)
To remove the drawer assembly (See Figure 2 and 6, page 6), then remove the two screws (A) holding the top cover
in place and swing the transformer/cover open. Remove the wing screw (B) securing the drawer assembly in the burn-
er. DO NOT loosen or remove the screw (C) securing the stop bracket in position. Disconnect the oil line fitting.
Gently lift up and pull back on the drawer, do not force it. It may be necessary to rotate the drawer assembly 90˚ to
help with it's removal.
To reinstall the drawer assembly, slide it into the air tube, do not force it. The drawer assembly must be lifted and
guided through the air cone at the end of the tube (E). Start with the end of the oil pipe at the 12 o'clock position,
slide the drawer forward until the flamelock is located in the air cone, then rotate it counterclockwise and position the
side cover between the guide rails. Pull the side bracket firmly back against the stop bracket, reinstall and tighten the
wing screw. Close the transformer/cover and secure with the two mounting screws.
STARTING PROCEDURE
STARTING BURNER
Be sure main switch is in "OFF" position, thermostat is substantially above room temperature, the oil tank is filled, all
valves are open, and controls set for operation. Adjust air supply on burner by loosening screw on interlocking air
bands, and open partially. (See Figure 7, page 6 for inputs and damper adjustments). Open the inspection door and
turn on switch. Prime pump according to the pump manufacturer's recommendations and check pressure. If safety
lockout occurs, reset after one or two minutes. Do not run fuel unit dry for more than five minutes. When fire is estab-
lished make a temporary air adjustment for a clean combustion flame, reduce air supply until flame tips appear slight-
ly smoky, then readjust so flame tips are clean looking. Leave inspection door open until chamber is dry. When nor-
mal temperature are reached, close inspection door. (See paragraph under "Draft Regulators").
Care should be taken when closing the transformer not to pinch the lead wires between the
housing and cover plate.
3
Advertisement
