Installation, Operation and Maintenance Manual Oil Fired Warm Air Furnaces POF1HD140AVFA (Up-Flow Model with ECM) POF1HD091AVFA (Up-Flow Model with ECM) FOR YOUR SAFETY: Do not store or use gasoline or other flammable liquids or vapors in the vicinity of this, or any other appliance. ALL INSTALLATIONS MUST MEET ALL LOCAL, PROVINCIAL/STATE, AND FEDERAL CODES WHICH MAY DIFFER FROM THIS MANUAL MAYTAG Read this complete manual before beginning installation.
TABLE OF CONTENTS 1. INTRODUCTION................................................................................................................................................... 3 2. HEAT LOSS.......................................................................................................................................................... 3 3. LOCATION OF UNIT ............................................................................................................................................
IMPORTANT: SAVE THESE INSTRUCTIONS FOR FUTURE REFERENCE other means prescribed, or approved by the local authority having jurisdiction. 1. INTRODUCTION Please read these instructions completely and carefully before installing and operating the furnace. In the United States, Manual J. titled, "Load Calculation" published by the Air Conditioning Contractors of America, describes a suitable procedure for calculating the maximum hourly heat loss.
Before final placement of the furnace, the heat exchanger support screws shown in the picture may be removed. This may be preferable if the furnace rear panel will be inaccessible after installation. The screws must be removed if the heat exchanger must be removed from the cabinet. terminates flush with the inside surface of the chimney liner. Seal the joint between the pipe and the lining. The chimney outlet should be at least two feet above the highest point of a peaked roof.
be powered from the electronic fan timer board where provisions have been made for connections, but should have their own controls. Do not use the direct drive motor connections as a power source, since there is a high risk of damaging the accessories by exposure to high voltage from the auto-generating windings of the direct drive motor. 7. BAROMETRIC DAMPER CONTROL. The barometric damper control, also known as a draft regulator, is used on conventional chimney venting only.
16. 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. Refer to the oil burner instructions shipped with the furnace for electrode specifications. 13. OIL FILTER All fuel systems should include an oil filter between the fuel oil storage tank and the oil burner. When using an oil burner nozzle smaller than 0.65 U.S.
19. CIRCULATING AIR BLOWER (POF1HD140AVFAand POF1HD091AVFA) 19b. CIRCULATING AIR BLOWER (POF1HD140AVFA and POF1HD091AVFA) (See Section 22 Page 9) The POF1HD140AVFA and POF1HD091AVFA furnace models are equipped with direct drive blower systems. POF1HD140AVFA and POF1HD091AVFA models are equipped with electronically commutated motors (ECM). Direct drive blower speed adjustments are not normally required in properly sized extended plenum duct systems.
pipe and fittings. The barometric damper should open and close freely. 20. MAINTENANCE AND SERVICE Routine Maintenance By Home Owner All electrical connections should be checked to ensure tight connections. Safety controls such as the high limit controls should be tested for functionality. The fan control should be checked to ensure that the fan on and off delay function continues to start and stop the blower fan at the optimal settings.
Restore the temperature. thermostat setting to a comfortable 22. ECM BLOWER MOTOR OPERATION (POF1HD140AVFA and POF1HD091AVFA) Setting Blower “ON” and “OFF” Timings Blower on/off time delays are handled by ECM motor programming. Features of this ECM variable speed motor are that it will deliver a constant airflow within a wide range of external static pressures, and also includes: NOTE: IF THE FURNACE IS TO BE SHUT DOWN FOR AN EXTENDED PERIOD OF TIME, CLOSE THE OIL SUPPLY VALVE TO THE BURNER.
Appendix APOF1HD140AVFA AND POF1HD091AVFA Please note: The Beckett AF oil burner is for applications using indoor air for combustion only. Table A-1 Beckett AF Oil Burner Set-Up Beckett AF Series Oil Burners (For use with chimney vented units only) Furnace Model Output BTU/Hr Burner Model Nozzle Pump Pressure Flow Rate Head 1 Static Plate POF1HD070AVFA ² 59,000 AF76BNHS 0.50 / 80°A 100 psig 0.50 usgph F3 3- ⅜ in. POF1HD091AVFA 76,000 AF76BNHS 0.65 / 80°A 100 psig 0.
A.1 OIL BURNER AIR ADJUSTMENT A.3 START 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. The POF1HD140AVFA and POF1HD091AVFA furnaces operate most efficiently with a No. 1 smoke spot on the Bacharach Scale.
Table A-8 Direct Drive Blower Characteristics ECM Motor CFM RANGE Furnace Model POF1HD105AVFA POF1HD119AVFA POF1HD140AVFA Blower 100-10 DD Motor HP 1/2 HP ECM Motor FLA 7.7 ∆T 70°F Continuous Heating Cooling Fan 0.28 - 0.48 inches w.c. 0.5 inches w.c. 500 - 700 1100 - 1525 600 - 1400 CFM RANGE Furnace Model POF1HD070AVFA POF1HD091AVFA POF1HD105AVFA Blower 100-10 DD Motor HP 1/2 HP ECM Motor FLA 7.7 ∆T 70°F 12 Continuous Heating Cooling Fan 0.28 - 0.48 inches w.c. 0.
Table A-9 General Dimensions (Inches) Cabinet Plenum Openings Return Furnace Model POF1HD140AVFA Width Depth Height Supply Side Bottom 22 30 3/4 58 20½ x 20 14 x 22 14 x 22 13 Flue Diameter 6 Filter Shipping Weight Type Size Permanent 16 x 25 x1 270
Table A-9 General Dimensions (Inches) Cabinet Plenum Openings Return Furnace Model POF1HD091AVFA Width Depth Height Supply Side Bottom 22 30 3/4 49-5/8 20½ x 20 14 x 22 14 x 22 14 Flue Diameter 5 Filter Shipping Weight Type Size Permanent 16 x 25 x1 210
Table A-10 ECM Blower Set-Up (POF1HD091AVFA) 100-10DD blower with ½ HP ECM DIP SWITCH ADJUSTMENT CHART FOR INPUT 0.50 USGPH TO 0.75 USGPH SW1 - HEAT DIP Switch Position 1 2 OFF OFF ON OFF OFF ON ON ON SW3 - ADJUST DIP Switch Position 1 2 OFF OFF ON OFF OFF ON ON ON SW2 - COOL POS. A B C D INPUT USGPH 0.65 N/A 0.75 0.50 DIP Switch Position 1 2 OFF OFF ON OFF OFF ON ON ON POS. A B C D AC Size (TON) 3 2.5 2 1.5 SW4 - DELAY POS.
Table A-10 ECM Blower Set-Up (POF1HD140AVFA) 100-10DD blower with ½ HP ECM DIP SWITCH ADJUSTMENT CHART FOR INPUT 0.75 USGPH TO 1.00 USGPH SW1 - HEAT DIP Switch Position 1 2 OFF OFF ON OFF OFF ON ON ON SW3 - ADJUST DIP Switch Position 1 2 OFF OFF ON OFF OFF ON ON ON SW2 - COOL POS. A B C D INPUT USGPH 1.00 0.85 N/A 0.75 DIP Switch Position 1 2 OFF OFF ON OFF OFF ON ON ON POS. A B C D AC Size (TON) 3 2.5 2 1.5 SW4 - DELAY POS.
Chimney Vent Burner Wiring Diagram HTL-C HTLV-C POF1HD140AVFA APPENDIX B: WIRING DIAGRAMS LEGEND/legende 120 V 24 V FACTORY WIRING filage a l'usine 120 V 24 V FIELD WIRING filage au champs INDOOR BLOWER ventilateur principale MOTOR moteur L C ML H MHI L1 530SE BL COM 24V BK YL WH CAP BL V VALVE/ soupappe 3 4 5 N EAC 2 6 HUM 2 COOL 1 1 HEAT 3 7 VI C YL GR 3 3 WH 4 WH AL 1008 11 BR BL 3 1 2 4 1 3T (T1) 2 BURNER MOLEX CONNECTOR/ connecteur molex du brûleur 1 2 B
OPERATION OF OIL BURNER Once the furnace flue pipe, electrical and oil line connections have been made, use the following instructions to set the burner: Shut off the electrical power to the furnace. Install an oil pressure gauge to the pressure port on the oil pump. (Refer to the oil pump specification sheet included with the burner instructions). Restore electrical power to the furnace. Start the furnace and bleed all air from the fuel oil lines. Close the purge valve and fire the unit.
APPENDIX C OIL PRIMARY CONTROL DETAILED SEQUENCE OF OPERATION Power is applied to unit. The oil primary control completes a self-diagnostic procedure. If no light or flame is present, and unit passes its self-diagnostic procedure, the control enters into the idle mode. Thermostat calls for heat: A) Safety check is made for flame (4 second delay). 1) If flame is not present, the oil primary control will apply power to the burner motor and igniter.
FIGURE 5: UNITED TECHNOLOGIES 1168-1 ECM TAP BOARD (POF1HD140AVFA and POF1HD091AVFA) 1168-1 ELECTRONIC FAN TIMER BOARD (EFT) DETAILED SEQUENCE OF OPERATION Thermostat Input LEDs (LED1-5, LED8) Six green LEDs are placed behind their respective thermostat connections (Y1, Y/Y2, G, DH, O, and W) and operate whenever a call is present. Thermostat calls for “W”.
IDLE STATE THERMOSTAT CALLS FOR HEAT SAFETY CHECK FOR FLAME (5 SEC.) OIL PRIMARY CONTROL SEQUENCE of OPERATION REMAINS IN IDLE STATE NO FLAME FLAME BURNER MOTOR & IGNITOR START 10 SEC. SAFETY CHECK FOR FLAME (5 SEC.
TROUBLESHOOTING OIL PRIMARY CONTROL LED DIAGNOSTIC LIGHT IMPORTANT: Due to the potential hazard of line voltage, only a trained, experienced service technician should perform the troubleshooting procedure. The LED diagnostic light has several functions. It indicates the state or mode in which the oil burner is operating. It will also indicate fault conditions, and help determine cad cell resistance while the burner is operating.
PRELIMINARY CHECKS: Make sure that limit switches are closed and those contacts are clean. ELECTRICAL SHOCK HAZARD. Check for line voltage power on the oil primary control black and white lead wires. TROUBLESHOOTING IS DONE WITH THE SYSTEM POWERED. BE CAREFUL TO OBSERVE ALL NECESSARY PRECAUTIONS TO PREVENT ELECTRICAL SHOCK OR EQUIPMENT DAMAGE. Refer to Table C-3 or C-4 for further troubleshooting information.
Table C-3: Oil Primary Control Troubleshooting continued from previous page Procedure 4. Shield cad cell from external light. 5. Jumper thermostat (T -T) terminals on oil primary control IMPORTANT First remove one thermostat lead wire. Status Indicator light turns off. Indicator light stays on. Burner starts. Burner does not start. Corrective Action Eliminate external light source or permanently shield cad cell. Replace cad cell with new cad cell and recheck.
Table C-3: Oil Primary Control Troubleshooting continued. Procedure Status Corrective Action Indicator light is on. Remount control onto burner housing. Go to step 6. 10. Check cad cell. Disconnect line voltage power and open line switch. Remove existing cad cell and replace with new cad cell. Disconnect all wires from thermostat terminals to ensure Indicator light is off. Go to step 11. that there is no call for heat. Reconnect line voltage power and close line switch.
Table C-4: System and General Troubleshooting continued Problem Furnace will not start. Possible Cause Photo Cell wiring shorted or room light leaking into photo cell compartment Open safety switch. No fuel oil. Clogged nozzle. Furnace will not start without first pushing oil primary control reset button. (Happens on frequent basis) Clogged oil filter. Low oil pump pressure. Air getting into fuel oil lines, or fuel oil line dirty, clogged, or in some manner defective. Defective burner motor.
Table C-4: System and General Troubleshooting continued Problem Possible Cause System temperature rise too high. Poor “fan off” delay timing selection, (fan stops too soon). Excessive fuel oil consumption. Fuel oil leak. Check fuel oil line for leaks. Repair or replace if necessary. Stack temperature too high. Check stack temperature. Stack temperatures will normally range from 350° to 450°F. Check draft regulator. Draft should be set to -0.02 in. w.c.
Table C-4: System and General Troubleshooting continued Problem Supply air temperature too hot. Supply air temperature too cool. Supply air temperature too cool during first moments of furnace cycle. Possible Cause Airflow blocked or dirty air filter. Insufficient airflow. Excess airflow. Excessive duct losses. Fan control "fan on" setting too low. Excessive duct losses. Remedy Clean or replace air filter. Check all dampers. Open closed dampers including registers in unused rooms.
HOMEOWNER’S REFERENCE TABLE Model No. Serial No. Date Installed Contractor Contact Address Postal Code Telephone No. After Hours No. FUEL SUPPLIER Fuel Oil Supplier Contact Telephone No. After Hours No. IF DIFFERENT FROM INSTALLATION CONTRACTOR: Service Tech. Telephone No. After Hours No.
PARTS LISTING: HIGHBOY MODEL: POF1HD140AVFA Ref. No. Description Part No.
33 34a Draft Regulator Oil Burner Assembly, Beckett AF76XN Burner Motor 1/7 HP 3450 RPM PSC Beckett Clean-cut Oil Pump A2EA6520 Solid State Ignitor 10SAY-01 Oil Primary Combustion Control Genisys Flame Retention Head F6 Nozzle, 1.00/60ºW Ref.No. Description 35a 12240 (6”) 240007760 29689 29688 29522 240007858 11961 14619329 Part No.
PARTS LISTING: HIGHBOY MODEL: POF1HD091AVFA Ref. No. Description Part No.
Ref. No. Description Part No.
NOTES: Nordyne, Inc.
