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Clean Heating Coil
- Remove burner from coil by removing the four ange mount nuts. Inspect inside of
combustion chamber and if it is heavily sooted so that air passage could be a serious problem, clean the air
passage with a heavy duty vacuum. Run machine at full pressure and check the inside coil for leaks.
Check Oil Filter
- Loosen nut cap of oil lter until cup and lter element can be removed. Replace the lter
element. At this time, check for water and sediment in the lter cup. Finally, clean the cup with fuel oil.
Check Oil Pump Screen
not to lose any of the small pieces from inside the pump. The screen is a steel mesh cylinder inside the pump.
Check for water and sludge. Clean with fuel oil and replace.
Coil Maintenance
- Liming of the coils is caused by mineral deposits from the water and occurs in hard water
areas. The deliming procedure requires special caution and tools to perform. We recommend that you call your
local service person if problems arise.
CHECKING FOR SCALE OR LIMING IN THE COIL
1.
Remove outlet ori ce and check for any liming. Clean the ori ce if needed.
2.
Remove outlet gun and hose.
3.
Install a pressure gauge between the unloader and coil inlet.
4.
Turn on the pump without the water outlet gun or outlet ori ce. If the pressure reading is above 50 psi, have
your machine descaled. Else, reassemble the machine.
DESCALING
If pressure drop in the coil is over 50 psi - descaling is recommended. Descaling requires the use of highly
corrosive chemicals. It also requires the use of goggles and special protective clothing.
1.
This procedure requires a 20L pail of descaling chemical.
2.
Plumb the pump suction into the pail of descaling compound with a screen on the end of the suction line.
3.
Plumb a hose from the machine outlet back in the pail of descaling compound.
4.
Turn the pump on and circulate the compound through the machine for about 20 minutes.
5.
After that time the chemical being pumped out of the coil should be running thin and dirty rather than foaming
heavily.
6.
Remove the extra plumbing and reconnect machine together and run clean cold water through the machine
for ve minutes.
SETTING THE COMBUSTION EFFICIENCY OF THE BURNER
1.
Remove the ame tube assembly from the burner.
a. Remove any heavy sooting on spinner head.
b. Change oil nozzle.
c. Change electrode insulators if cracked.
d. Check electrode points for excessive wear and replace.
2.
Check spark gap of transformer.
3.
Ensure that the fan moves freely.
4.
Fire the burner and check the exhaust gas with a smoke tester. Using the suitable test instruments for smoke
and CO
or O
set the air settings to obtain a trace of smoke. Measure the CO
2
2
add su cient air to reduce the CO
otherwise speci ed by the appliance manufacturer's instructions EXAMPLE: 13% CO
reduced to 12% CO
5.
Tighten all locking screws after the nal adjustments are made.
6.
Start and stop the unit several times to ensure that there are no signi cant rumbles or pulsations.
ANNUAL BURNER SERVICE
- (ONLY if pump is not working properly): Remove the back of the oil pump taking care
or increase the O
2
.
2
by one percent (1%) as an insurance margin, unless
2
7
GF
and the O
at this point and
2
2
& a trace of smoke
2
SERIES
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