Starting Procedure; Maintenance - Wayne EHA Manual

CAUTION: Close the ignition transformer and assure there is positive spring contact with
the brass buss bars. Take care not to pinch the ignition transformer lead wires between the
housing and cover plate. Reinstall the ignition transformer hold down clip and tighten the 5/16-18 hex slotted screw
securely.
Care should be taken when closing the transformer not to pinch the lead wires between the housing and cover plate.

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. Open the inspection door and turn on switch. Prime pump according to the pump manufac-
turer'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 or damage to the pump may result. When flame is established make a temporary
air adjustment for a clean combustion flame, reduce air supply until flame tips appear slightly smoky, then readjust so
flame tips are clean looking. Leave inspection door open until chamber is dry. When normal temperature are reached,
close inspection door. (See paragraph under "Draft Regulators").
FINAL ADJUSTMENTS
At this point a final adjustment should be made by the use of a COMBUSTION TEST KIT. After operating ten minutes
to warm up unit, a smoke tester should be used to take a smoke reading. Smoke test should read no greater than #1
(Shell Bacarach scale), and less than a #1 smoke is desired. At times, a new heating unit requires more time than this
to burn clean due to the oil film on the new heater unit surfaces. Recheck draft and take a CO
and in the stack. If a large differential between CO
ings must be taken ahead of draft control, if used.The CO
1.00GPH or below, and be at least 10% for oil rates over 1.00GPH. Units should be started and stopped several times
to assure good operation. Open inspection door, turn off valve, and check out safety timing of combustion control.
Check operation of limit controls and thermostat. Check for oil leaks. NOTE: ALL NEW INSTALLATIONS SHOULD BE
REINSPECTED AFTER ONE OR TWO WEEKS OF NORMAL OPERATION.
SETTING COMBUSTION EFFICIENCY
(A) Selecting firing rate desired. (B) Install proper nozzle for appliance (see paragraph under "Nozzle and Air Cone
Selection" page 3). (C) For model EHA and EH burners make gun adjustments per firing rate (see Figure 5, page 6).
Note: the EHASR guns are permanently set and not adjusted with changing rates (see Figure 6, Page 6). (D) Fire burn-
er, adjust interlocking air bands for yellow tips above combustion chamber. (E) Record CO
adjust gun setting back 1/32" and repeat CO
is obtained. Record stack temperature. (F) Check lighting with cold and hot chamber. (G) Lock all adjustment screws.
FINAL CHECKS
Be sure all screws are locked, and the controls on heating unit are adjusted in accordance with the heater and control
manufacturer's instruction sheets.

MAINTENANCE

OILING MOTOR – Proper lubrication of the motor will prolong its service life. Oil sleeve bearing motors with 6 drops of
SAE 20 oil once a year. DO NOT OVER OIL. Ball-bearing motors do not require oiling under normal service conditions.
The bearing type is printed on the motor nameplate.
FILTER – The oil filter cartridge should be replaced once a year so the fuel oil will not become contaminated and plug
up fuel pump and nozzle of oil burner.
NOZZLE – The nozzle should be changed at least once a year before the start-up of the heating season. Replace with
proper nozzle.
COMPONENTS – If for any reason any of the burner parts have to be replaced, always use parts recommended by
the manufacturer. Specify part numbers and description when ordering. (IN ALL COMMUNICATIONS STATE BURN-
ER MODEL, SERIAL NUMBERS AND APPLIANCE MANUFACTURERS AND APPLIANCE MODEL DESIGNATION).
ELECTRODE SETTINGS – This is very important for reliable ignition of the oil; check these once a year in accordance
with the instructions provided in this manual. Replace electrodes if worn excessively or if porcelain insulator is oil
soaked or cracked.
FAN & BLOWER HOUSING – This must be kept clean, free of dirt and lint; open transformer to check fan blades from
above. CAUTION: Be sure the electric power is off on burner when the transformer is opened up for this inspection.
4
readings is noted, air leakage is the most common cause. CO
2
measured in the stack should be at least 9% for oil rates
2
and smoke test. Continue this adjustment until desired CO
2
reading over the fire
2
read-
2
and smoke. If CO is low,
2 2
and smoke
2