Nortek O4HD-091A-12-FB Installation, Operation And Maintenance Manual Download | Manualshive

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Table A-8 Direct Drive Blower Characteristics ECM Motor

CFM RANGE

Continuous

Heating

Cooling

Furnace Model

Blower Motor

HP

Motor

FLA

∆

T

Fan

0.28 - 0.48

inches w.c.

0.5 inches

w.c.

O4HD-070A-V-FA
O4HD-091A-V-FA
O4HD-105A-V-FA

100-10

DD

1/2 HP

ECM

7.7

60°F

500 - 700

825 - 1250

600 - 1400

14

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12
13
14
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16
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Summary of Contents for O4HD-091A-12-FB

Page 1: ...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...

Page 2: ...ER PRIMARY SAFETY CONTROL 7 18 COMBUSTION CHAMBER 7 19a 19b CIRCULATING AIR BLOWER 7 20 MAINTENANCE AND SERVICE 8 21 OPERATING INSTRUCTIONS 9 22 ECM BLOWER MOTOR OPERATION 9 APPENDIX A O4HD 091A 12 FB...

Page 3: ...red The furnace should be carefully inspected for damage when being unpacked 2 HEAT LOSS The maximum hourly heat loss for each heated space shall be calculated in accordance with the procedures descri...

Page 4: ...is installed in a full basement infiltration is normally adequate to provide air for combustion and draft operation Furnace rooms under 65m 700 ft should automatically be treated as confined space 6 C...

Page 5: ...at the end of a call for heat Blower shutdown is delayed to remove any residual heat from the heat exchanger and improve the annual efficiency of the furnace The electronic fan timer board works in co...

Page 6: ...rmers 12 PIPING INSTALLATION The entire fuel system should be installed in accordance with the requirement of CAN CSA B 139 and local regulations Use only an approved fuel oil tanks piping fittings an...

Page 7: ...ER UNLESS THE BLOWER ACCESS DOOR IS SECURED IN PLACE 19a CIRCULATING AIR BLOWER O4HD 091A 12 FB The O4HD 091A 12 FB O4HD 091A 14 FA DV and O4HD 091A V FA furnace models are equipped with direct drive...

Page 8: ...s of the same size and type See Appendix A Table A 8 During the routine service inspect the general condition of the furnace watching for signs of oil leaks in the vicinity of the oil burner soot form...

Page 9: ...ive blower motor Restore the electrical power to the furnace and set the thermostat above room temperature After three or four minutes of burner operation the limit control should turn the burner off...

Page 10: ...TTEMPT TO START THE BURNER WHEN EXCESS OIL HAS ACCUMULATED WHEN THE FURNACE IS FULL OF VAPOUR OR WHEN THE COMBUSTION CHAMBER IS VERY HOT NEVER BURN GARBAGE OR PAPER IN THE FURNACE AND NEVER LEAVE PAPE...

Page 11: ...80 A 100 psig 0 50 usgph F3 3 in O4HD 091A 12 FB O4HD 091A 12 FB 76 000 AF76BNHS 0 65 80 A 100 psig 0 65 usgph F3 3 in O4HD 105A 12 FB O4HD 105A 12 FB 86 000 AF76BNHS 0 75 80 A 100 psig 0 75 usgph F3...

Page 12: ...cone to the nozzle face is increased to 1 3 8 inches A 3 START UP The furnace should be operated for a minimum of 10 minutes to reach steady state conditions before fine tuning combustion The warm up...

Page 13: ...10T DD Med Low 1 2 HP Med High 1 2 HP 3 1 2 HP 690 1500 O4HD 105A 12 FB O4HD 105A 14 FA DV 100 10T DD Med High 1 2 HP High 1 2 HP 3 1 2 HP 690 1500 Table A 7 Direct Drive Blower Characteristics PSC M...

Page 14: ...istics ECM Motor CFM RANGE Continuous Heating Cooling Furnace Model Blower Motor HP Motor FLA T Fan 0 28 0 48 inches w c 0 5 inches w c O4HD 070A V FA O4HD 091A V FA O4HD 105A V FA 100 10 DD 1 2 HP EC...

Page 15: ...inet Plenum Openings Filter Shipping Weight Return LB Furnace Model Width Depth Height Supply Side Bottom Flue Diameter Type Size O4HD A 12 FB O4HD A 14 FA DV 070 105 22 30 3 4 49 5 8 20 x 20 14 x 22...

Page 16: ...SW3 ADJUST Heating Mode Increase OR decrease temperature rise respectively Cooling Mode Increase OR decrease CFM respectively INPUT DIP Switch Position AC Size 1 2 POS USGPH 1 2 POS TON OFF OFF A 0 65...

Page 17: ...L F interupteur a basse vitesse si quipp e AL limite auxiliaire si quipp e REQUIRED FOR CANADIAN INSTALLATIONS BLOCKED VENT SAFETY L BVS RIELLO 40F BURNER br leur BECKETT AF BURNER br leur 4 1 2 3 OR...

Page 18: ...TE blanc GND GROUND Terre VI VIOLET violet MOTOR 3 UNUSED BURNER 1 2 YL F IGNITER I soupappe VALVE V L1 FUSED DISCONNECT ON HOT LEG POWER SUPPLY 120 VAC 60 HZ alimentation 120 VAC 60Hz transformateur...

Page 19: ...fan adjustments can be made by moving the dipswitch settings on the timer control board for fan off delay To check the operation of the limit switch shut off power to the furnace Temporarily remove t...

Page 20: ...spark 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 I...

Page 21: ...FIGURE 4 UNITED TECHNOLOGIES 1158 120 FAN TIMER BOARD O4HD 091A 12 FB and O4HD 091A 14 FA DV FIGURE 5 UNITED TECHNOLOGIES 1168 1 ECM TAP BOARD O4HD 091A V FA 21...

Page 22: ...S TO IDLE STATE FLAME FLAME FLAME FLAME NO FLAME NO FLAME FLAME LOST FLAME LOST REMAINS IN IDLE STATE OIL PRIMARY CONTROL SEQUENCE of OPERATION LOCKOUT STATE OIL PRIMARY CONTROL Shuts off burner motor...

Page 23: ...ol shuts off burner Circulator fan is energized immediately at heat speed EFT opens the oil primary control T T connections Circulating fan runs as long as limit string stays open If there is a call f...

Page 24: ...sing the reset button The LED diagnostic light will flash the following code Table C 2 Cad Cell Resistance Flashes Resistance in Ohms 1 Less than 400 2 Between 400 800 3 Between 800 1600 4 Between 160...

Page 25: ...ad cell with new cad cell and recheck If indicator light does not turn off remove yellow lead wires from oil primary control and recheck If indicator light is still on replace the oil primary control...

Page 26: ...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...

Page 27: ...ero 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 functi...

Page 28: ...aximum 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 operated...

Page 29: ...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 surfac...

Page 30: ...oints and seams Insulate ductwork if necessary IMPORTANT FINAL CHECK OUT ENSURE THAT ALL SAFETY DEVICES AND ELECTRICAL COMPONENTS HAVE BEEN SET FOR NORMAL OPERATION ENSURE THAT ALL ELECTRICAL CONNECTI...

Page 31: ...al 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 Se...

Page 32: ...240006333 29161 29163 19 Filter Frame 16 X 25 18020 20 Filter Frame End Support 5592B2 21 Filter 16 X 25 X 1 Permanent 2180023 24 Control Box 29362 25 Upper Door Panel 30164L Logo Bezel 28479 Logo La...

Page 33: ...DV Ref No Description Part No All parts are the same as listed on the previous pages for Models O4HD 091A 12 FB and O4HD 091A V FA except where noted below 12 Oil Burner Mounting Plate Assembly 29872...

Page 34: ...34...

Page 35: ...NOTES Nortek Global HVAC 8000 Phoenix Parkway O Fallon Missouri 63368 151B 0810 Replaces 151B 0909 Nortek Global HVAC LLC 2015 All Rights Reserved 35...

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