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151B0801 R5 3/28/2006

 

9

 

BEFORE OPERATING THE FURNACE 
CHECK BURNER ALIGNMENT WITH 
COMBUSTION CHAMBER. THE END 
CONE OF THE AIR TUBE MUST BE 
CENTRED TO THE ACCOMODATING 
RING PROVIDED IN THE DESIGN OF 
THE COMBUSTION CHAMBER. 
ADJUST ALIGNMENT AS 
NECESSARY BEFORE THE FIRST 
FIRING. 

OIL BURNER NOZZLES 

O4HD-091A

 furnaces are certified for 

multiple firing rates, ranging from 
approximately 58,000 to 79,000 BTU/hr. 
The 

O4HD-140A

 furnaces are certified 

for multiple firing rates of approximately 
87,000 115,000 BTU/hr. By changing the 
oil burner nozzle within the specific 
Model Range, and temperature rise, the 
furnace may be fired at an ideal rate for 
a wide range of structures. 

BURNER ELECTRODES 

Correct positioning of the electrode tips 
with respect to each other, to the fuel oil 
nozzle, and to the rest of the burners is 
essential for smooth light ups and proper 
operation. The electrode tips should be 
adjusted to a gap of 5/32”, 1/16” ahead 
of the nozzle, 5/16” above the centerline 
of the nozzle. The “Z” dimension (front 
edge of the burner head to the front face 
of the nozzle is 1-1/8 inches. 

Electrode positioning should be checked 
before the first firing of the furnace. 

The electrode porcelains should be free 
of cracks, the electrode tips should be 

tapered and free of burrs, and the 
contact rods must be clean and be in 
firm contact with the ignition transformer 
contact springs. The electrodes must not 
come into contact with the burner head. 

OIL BURNER SET-UP 

The burner air supply is adjusted to 
maintain the 

fuel to air

 

ratio

 to obtain 

ideal combustion conditions. A lack of air 
causes "soft" and "sooty" flames, 
resulting in soot build-up throughout the 
heat exchanger passages. Excess 
combustion air causes a bright roaring 
fire and high stack temperatures 
resulting in poor fuel efficiency.  

PREPARATIONS:

 

Drill a ¼” test port in the venting, ideally 
at least 2 flue pipe diameters away from 
the furnace breeching, if venting 
horizontally from the furnace, or from the 
flue pipe elbow if venting vertically before 
reaching the furnace. (See Figures 4 and 
5). 

The test port will allow flue gas samples 
to be taken and stack temperatures to be 
measured. 

Before starting the burner, check the 
burner alignment with the combustion 
chamber (fire pot), check that the correct 
nozzle is tightened into place, and that 
the burner electrodes are properly 
positioned. 

The Beckett burner bulk air band is 
should be closed, and the air shutter 
initial setting should be approximately 
7.00. 

Note A

: Locate hole at least 6 inches on 

the furnace side of the draft control. 

Note B

: Ideally, hole should be at least 

12 inches from breeching or elbow. 

PROCEDURE: 

Start the burner and allow it to run at 
least ten minutes. Set the air shutter to 
give a good flame visually. Manipulating 
the air shutter on the left side of the 
burner controls the combustion air 
supply to the burner, and, if necessary, 
the bulk air band. To adjust, loosen the 
bolt on the movable shutter. Move the 
shutter gradually until a good flame 
(visually) has been achieved. Re-snug 
the bolt. 

Check the initial draft setting as the 
furnace warms up. The draft may be 
measured at the test port. The breech 
draft should be approximately - 0.05” 
w.c. to obtain an over fire draft reading of  
- 0.02 inches w.c. 

Check the oil pump pressure. Standard 
operating pressure is 100 PSIG. 

After reaching steady state, take a 
smoke test. If not indicating a trace, set 
the combustion air controls to provide a 
trace. 

Typically, the CO

2

 reading will range 

from 11.5% to 13.5%. 

After the air adjustments have been 
completed, and the air shutter or air 
adjustment plate has been secured, re-
check the over fire draft and take another 
smoke test to ensure that the values 
have not changed. 

Fig.4 Vertical Smoke test Location 

Fig.3 Horizontal Smoke test Location 

Содержание O4HD-091A-12-FA

Страница 1: ...WER ECM 8 FURNACE CONTROLS 9 OIL BURNER 9 FURNACE INSTALLATION SET UP 11 MAINTENANCE AND SERVICE 12 OPERATING INSTRUCTIONS 12 TABLE A 1 BECKETT OIL BURNER SET UP 13 TABLE A 2 DIRECT DRIVE BLOWER SET U...

Страница 2: ...f Oil Burning Equipment as well as in accordance with local codes In Canada the installation of the furnace and related equipment shall be installed in accordance with the regulations of CAN CSA B139...

Страница 3: ...able 1 Installation on a combustible floor requires a clearance of 1 inch Using a noncombustible material such as one inch thick channel iron or similar material can do this The furnace must be suppor...

Страница 4: ...VRV INCLUDED IN THIS KIT MUST BE USED IN CONJUNCTION WITH THE FURNACE BOOT CHIMNEY VENTING The chimney must be sized correctly and be in good repair If the chimney is oversized there is a high risk o...

Страница 5: ...on extension cord Change to straight or to long offset I Two or more openings to the same chimney Found by inspection from basement The least important opening must be closed using some other chimney...

Страница 6: ...urnace may be installed with a one pipe system with gravity feed or lift The maximum allowable lift on a single line system is 8 feet Lift should be measured from the bottom outlet of the tank to the...

Страница 7: ...tory is fed into pre programmed algorithms in the microprocessor to determine the correct motor output required to maintain constant airflow regardless of external static pressure The microprocessor a...

Страница 8: ...ng the dipswitch combination displayed in Table 5 This fan on delay can be set at 30 60 90 or 120 seconds This provides a delay between the burner ignition and blower start up to eliminate excessive f...

Страница 9: ...efficiency PREPARATIONS Drill a test port in the venting ideally at least 2 flue pipe diameters away from the furnace breeching if venting horizontally from the furnace or from the flue pipe elbow if...

Страница 10: ...s ducts the inside radius of elbows etc The supply air temperature should be measured at a point where the thermometer will be well within the air stream near the furnace supply air outlet Usually the...

Страница 11: ...tele spout oiler This oiler has a long flexible plastic spout DO NOT OVER LUBRICATE Excess oil may result in premature electric motor failure Inspect the blower fan Clean it if necessary Oil Burner Ma...

Страница 12: ...f air passing through the oil burner combustion chamber breeching etc up the chimney between burner cycles NOTE THE USE OF THIS CONTROL CAN OCCASIONALLY CAUSE POST COMBUSTION NOZZLE DRIP TABLE A 2 DIR...

Страница 13: ...w 1622 1602 1541 1499 1433 0 1 1 1215 1214 1214 1207 1204 1 0 0 1128 1108 1101 1095 1089 1 0 1 988 987 981 978 938 O4HD 091A V F 11 10 DD 9 6 50 80 F 0 0 0 788 787 781 777 756 1 1 0 1800 1800 1800 180...

Страница 14: ...ir Width A Depth B Height C D x E Side F x G Bottom Dia Height H Filter Perm Ship Weight lb O4HD 091A 22 31 50 1 2 20 1 2 x 20 14 x 22 14 x 22 5 42 16 x 25 x 1 190 O4HD 140A 22 31 58 1 8 20 1 2 x 20 1...

Страница 15: ...151B0801 R5 3 28 2006 15 APPENDIX A WIRING DIAGRAM O4HD 091A 12 FA and O4HD 140A 16 FA...

Страница 16: ...151B0801 R5 3 28 2006 16 APPENDIX B WIRING DIAGRAM O4HD 091A V F and O4HD 140A V F...

Страница 17: ...JURY PROPERTY DAMAGE OR DEATH ACCESSORIES The EFTB has provisions for supplying 115 volt power to an electronic air cleaner EAC as well as 115 volts to a line voltage humidifier or humidifier step dow...

Страница 18: ...park for 10 sec a Provides continuous spark after flame is sensed to assure that burner remains lit b Turns on LED diagnostic light c Starts carryover timer i Flame and call for heat are monitored If...

Страница 19: ...noid Valve LED Diagnostic Light RETURNS TO IDLE STATE FLAME FLAME FLAME FLAME NO FLAME NO FLAME FLAME LOST FLAME LOST REMAINS IN IDLE STATE R7184 SEQUENCE OF OPERATION LOCKOUT STATE R7184 Shuts off bu...

Страница 20: ...0 seconds b Burner motor is de energized Even though thermostat is still calling for heat c If circulator fan has started it continues through the selected heat fan off delay period Established flame...

Страница 21: ...t existing call for heat a Circulator fan turns off when heat fan off delay time is complete b Normal operation resumes electronic fan timer control is in standby mode awaiting next thermostat command...

Страница 22: ...shooting IMPORTANT Due to the potential hazard of line voltage only a trained experienced service technician should perform the troubleshooting procedure PRELIMINARY STEPS Check the diagnostic light f...

Страница 23: ...ce the R7184 control If the indicator light turns off replace cad cell bracket assembly Burner starts Trouble is in thermostat circuit Check thermostat wiring connections If connections are clean and...

Страница 24: ...Step 7 6 Reset oil primary control by pushing in and releasing red reset button Indicator light continues to flash at 1 Hz rate Verify that the control is not in restricted mode See notes at end of th...

Страница 25: ...each time a call for heat is successfully completed To reset from RESTRICTED MODE press and hold the reset button for 30 seconds When the LED flashes twice the device has reset NOTE Disable function P...

Страница 26: ...ht a maximum of 1500 in the presence of light Ensure that room light is not leaking into the cad cell compartment See diagnostic light section No fuel oil Check fuel oil supply Check that all hand ope...

Страница 27: ...r radiator Poor alignment between oil burner blast tube and fire pot Check alignment Blast tube should be centered with fire pot burner opening Oil burner head should be inch back from the inside surf...

Страница 28: ...re rise Slow down blower fan if necessary Supply air temperature too cool Excessive duct losses Check supply air ductwork Seal leaky joints and seams Insulate ductwork if necessary Fan control fan on...

Страница 29: ...151B0801 R5 3 28 2006 29 PARTS...

Страница 30: ...Filter 16 x 25 x 1 Permanent 2180023 23 Filter Frame End Support 5592B2 24 Junction Box 28723 25 Junction Box Cover 28722 26 Blower Assembly Complete Direct Drive 3 4 hp ECM O4HD 091A V F 30381 26a Bl...

Страница 31: ...unit 29161 20 Clean out Cover 2 per unit 29162 21 Filter Frame 16 x 25 x 1 18020 22 Filter Frame End Support 5592B2 23 Air Filter 16 x 25 x 1 Permanent 2180023 24 Junction Box 28723 25 Junction Box Co...

Страница 32: ...e Installed Contractor Contact Address Postal Code Telephone No After Hours No Service Contractor if different from Installation Contractor Service Tech Telephone No After Hours No Fuel Supplier Oil S...

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