Thermo Pride OH6FA072D48N Installation And Operation Manual Download Page 34

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Cooling Speed Set-ups

OH6F*072DV4

Furnace Motor Current

Draw

(Amps

Watts)

vs.

External

Static

Pressure

(in

W.C)

NOTE: All information is approximate. Results will vary by installation.

Figure 18-3: Cooling blower motor speed chart

Fan
Control
SW 1
Switch
Settings

Clg.

Tonnage

Cool

Continuous

0.2

0.4

0.6

6-OFF
5-OFF
4-OFF

799

500

0.9/79

1.5/128

1.9/170

6-OFF
5-OFF
4-ON

2.5

1017

508

1.3/112

1.9/171

2.6/238

6-OFF
5-ON
4-OFF

1210

605

1.9/172

2.4/226

3.0/279

6-OFF
5-ON
4-ON

3.5

1404

702

2.6/237

3.4/320

3.8/370

Factory
SW1 Switch
Settings

6-ON
5-OFF
4-OFF

1622

799

4.1/390

4.7/452

5.4/533

Air Flow

Summary of Contents for OH6FA072D48N

Page 1: ...STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE c WARNING IMPROPER INSTALLATION ADJUSTMENT ALTERATION SERVICE OR MAINTENANCE CAN CAUSE INJURY...

Page 2: ...SECTION 48 A OIL SUPPLY 48 B COMBUSTION AIR SUPPLY 48 C INSPECTION AREAS 48 D STARTING THE BURNER 49 E FILTER CLEANING AND LOCATION 49 IV INSTALLER S INSTRUCTIONS TO USER 50 V DEALER MAINTENANCE 51 A...

Page 3: ...Numbers O H 6 F A 0 7 2 D 4 8 B O H 6 F A 0 7 2 D V 4 R O H 8 F A 1 1 9 D 6 0 B O H 8 F A 1 1 9 D V 5 R O Oil O H Highboy D Downflow H 6 Heat Exchanger Size Identifier 6 F Front F R Rear R A Single S...

Page 4: ...CLEANED BY A QUALIFIED SERVICE PERSON See Page 52 cCAUTION DO NOT ATTEMPT TO MAKE REPAIRS YOURSELF See Page 48 cWARNING The area around the furnace should be kept free and clear of combustible liquid...

Page 5: ...2...

Page 6: ...ence of local codes with the Standard for the Installation of Oil Burning Equipment NFPA 31 1997 or the latest edition and to these instructions The installation must also comply with CSA B139 for rec...

Page 7: ...is area in which the furnace is located must have adequate supply of air for combustion and draft control operation The minimum required volume of free air should be 50ft 1000 btu per NFPA 54 However...

Page 8: ...ace is not to be used as a construction heater 5 Listed below are definitions of COMBUSTIBLE MATERIAL and NON COMBUSTIBLE MATERIAL Combustible Material is made of or surfaced with wood compressed pape...

Page 9: ...Appendix E for proper liner sizing 2 PREVENTION OF CHIMNEY CONDENSING Stack gas may do one of two things as it escapes up the chimney A Remain entirely in a gaseous state if the internal chimney wall...

Page 10: ...have to be done to raise the chimney temperature More detailed information may be obtained from the latest edition of the ASHRAE HVAC Systems and Equipment Handbook 3 PROPER CHIMNEY HEIGHT The chimne...

Page 11: ...ONNECTIONS All chimney clean out doors and flue connections must fit tightly so they will seal to avoid air leaks 8 NO INTERCONNECTED CHIMNEY FLUES If chimney flues are divided or there are multiple f...

Page 12: ...ass fiber or mineral wool batts 12 9 6 5 4 3 c 0 024 24 gauge sheet metal over 1 glass fiber or mineral wool batts reinforced with wire on rear face with ventilated air space 9 6 5 3 3 3 d 3 1 2 thick...

Page 13: ...ELBOW When an installation requires that the flue exit out the left or right OH8 only side casing remove screw securing the 90 deg elbow and rotate it 90 Then remove knock out in side casing and exte...

Page 14: ...hole in the vent connector pipe as close to the furnace as possible and always before the draft regulator Note Draft over fire may be positive for high fire applications but not to exceed 02 WC D DUCT...

Page 15: ...ton of air conditioning For reference a ton of A C 12 000 BTU hr removed from the space Refer to Examples 1 2 page 15 for a sample calculation of how to determine the required minimum airflow rate 5...

Page 16: ...of the take off and the outlet register or return grill should then be summed together to determine the total pressure drop for each branch This value should be close to the assumed value for the pre...

Page 17: ...r heat gain to the ducts 8 As a final step in the installation the appliance must be adjusted to deliver a temperature rise within the range of 50 to 80 F Adjust the blower motor speed to obtain a tem...

Page 18: ...k provided with the furnace refer to Fig 10a 10b will serve as a template to scribe a mark for the return air opening on the casing Place the filter rack on a side casing approximately one inch up fro...

Page 19: ...OH6 furnace Fig 10b A typical filter rack and dimensions for the OH8 furnace Failure to comply with minimum filter installation requirements may affect the performance and or void the warranty on this...

Page 20: ...removed although they can be cut to size as needed F LIMIT POSITION AND LOCATION cWARNING The predetermined limit locations on all of the Thermo Pride oil fired furnaces have been tested and approved...

Page 21: ...nserted no further than 1 4 inch back from the inside surface of the combustion chamber A distance further than 1 4 inch back from the inside chamber wall may cause impingement and sooting This unit i...

Page 22: ...PRESSURE PSIG OH6FA072D B TP2501 N AFG 4 5 F3 3 5 8 0 75X80 H 0 60X80 H 120 OH6FA072D N TP2601 S NX 4 5 FIXED N A 0 60X70 H 0 50X70 H 150 OH8FA119D B TP2502 N AFG 4 5 F6 2 3 4U 1 10X80 H 1 00X80 H 12...

Page 23: ...LLOWED BY THE SPRAY ANGLE IN DEGREE S AND THE SPRAY PATTERN EITHER H FOR HOLLOW CONE OR S FOR SOLID CONE FOR EXAMPLE A NOZZLE RATED AT 0 65 GPH 100 PSIG THAT PROVIDES AN 80 SPRAY ANGLE AND A HOLLOW SP...

Page 24: ...LOW FIRE 70 X 45 W 85 000 130psi 74 000 HIGH FIRE 85 000 170psi 74 000 LOW CAPACITY LOW FIRE 50 X 45 W 70 000 130psi 60 000 Table 9 Riello 2 stage firing rates Based on 2 domestic heating fuel oil hav...

Page 25: ...ing a gasket resistant to the corrosive action of fuel oils 7 Pipe dope or thread sealant design certified to be resistant to the action of fuel oils should be used on all threaded joints Thread seala...

Page 26: ...o trap a 40 50 micron particle The filter cartridge should be replaced at least once a year The filter body should be thoroughly cleaned before installing a new cartridge K ELECTRICAL WIRIING This app...

Page 27: ...push on or screw on type terminals to ensure that all wires and wire connectors are firmly secured A loose terminal can cause poor flow of electrical power to motors This may result in very high curr...

Page 28: ...ting and or cooling cycle Calibration will help to produce a more constant indoor temperature by adjusting the length of the heating cooling cycle to fit the application A vital consideration of this...

Page 29: ...the needle on to the measurement scale of the instrument proceed as follows 1 Wrap 10 loops of single strand insulated thermostat wire around the prongs of an ammeter refer to Figure 17 Set the scale...

Page 30: ...ting mode for proper operation If a digital ammeter is used read the current draw directly from meter Steps 1 through 3 are not required The meter reading is the correct anticipator setting L Blower M...

Page 31: ...5 1 4 123 1 7 156 3 OFF 2 OFF 1 ON 812 68 o 82 o 1 0 86 1 5 136 1 9 172 3 OFF 2 ON 1 OFF 883 63 o 76 o 1 1 95 1 6 143 2 2 199 Factory SW1 Switch Settings 3 OFF 2 ON 1 ON 968 57 o 69 o 86 o 1 2 110 1 8...

Page 32: ...4 311 3 8 356 3 OFF 2 ON 1 OFF 1429 65 o 77 o 2 0 185 2 4 220 2 7 251 3 1 284 3 6 330 4 0 370 4 3 408 3 OFF 2 ON 1 ON 1565 60 o 70 o 78 o 2 4 216 2 8 254 3 2 295 3 8 349 4 0 379 4 6 432 4 9 463 Facto...

Page 33: ...30 Heating Speed Set ups 2 Stage OH6FX072DV4 Figure 18 2 ECM 2 stage blower motor speed chart...

Page 34: ...g blower motor speed chart Fan Control SW 1 Switch Settings Clg Tonnage Cool Continuous 0 2 0 4 0 6 6 OFF 5 OFF 4 OFF 2 799 500 0 9 79 1 5 128 1 9 170 6 OFF 5 OFF 4 ON 2 5 1017 508 1 3 112 1 9 171 2 6...

Page 35: ...166 2 2 194 2 4 218 2 8 251 3 1 287 3 5 325 6 OFF 5 ON 4 ON 3 5 1406 703 994 1 8 165 2 2 197 2 7 246 2 9 271 3 4 319 3 7 347 4 2 399 Factory SW1 Switch Settings 6 ON 5 OFF 4 OFF 4 1624 800 1139 2 6 23...

Page 36: ...802 1762 1705 1635 1569 1493 1428 Furnace Motor Current Draw Amps vs External Static pressure in WC Low 3 3 3 1 3 0 2 9 2 6 2 5 2 4 ML 4 2 4 0 3 9 3 7 3 6 3 3 3 0 MH 5 4 5 2 5 0 4 7 4 4 4 2 4 0 High 6...

Page 37: ...tatic pressure in WC Low 6 6 648 6 6 648 6 4 639 6 2 630 6 0 612 5 8 592 5 4 565 ML 7 6 772 7 2 739 7 1 730 6 8 704 6 6 683 6 3 661 6 1 641 MH 9 0 908 9 0 905 8 7 888 8 5 871 8 3 842 8 0 818 7 7 796 H...

Page 38: ...iello Connections Thermostat Humidistat connections C Common ground W Thermostat call for heat R 24 VAC to thermostat G Thermostat call for fan Y Thermostat call for cool DEHUM Humidistat call for deh...

Page 39: ...will light when the control receives a call for dehumidification Refer to the Cool Mode section for the control operation Thermostat call for fan G 24 VAC thermostat input A call for fan is recognized...

Page 40: ...ed from the thermostat If no other mode is calling for blower operation the control will operate the fan relay K4 and power the Low blower speed terminal The fan mode will be operated as long as the G...

Page 41: ...d tap only In the case of thermostat calls for Y and W together blower speed selection will be determined by the input that was first initiated In the case where the control is in a cooling mode with...

Page 42: ...s and are located directly below those inputs They will light to indicate the presence of these signals The red Board Status LED has two functions It will light when the board recognizes a valid input...

Page 43: ...d relatively clean of dirt and debris e Make sure the thermostat is set in the heating mode of operation Operating Instructions i STOP Read the safety information above ii Set the thermostat to the lo...

Page 44: ...ollowing test instruments are required A smoke density measuring and rating device A carbon dioxide CO2 or oxygen O2 analyzer A flue gas temperature measuring device e g thermocouple or thermister pro...

Page 45: ...ment should be made using combustion instrumentation for smoke carbon dioxide CO2 or excess oxygen O2 and flue gas temperature In order to achieve the most efficient combustion the following steps mus...

Page 46: ...turns of the rod a hole 3 at its end facilitates counting the number of turns AIR DAMPER ADJUSTMENT The settings indicated in the schedule refer to the burner with its metal cover fitted and the combu...

Page 47: ...er remains permanently in the 2nd stage Loosen the nut 6 turn the screw 7 until the air shutter 1 reaches the position desired Then lock the nut 6 Pressure regulation this is set at 170 psi at the fac...

Page 48: ...e supply air temperature minus return air temperature Under steady state operating conditions the temperature rise across the heating section should be approximately 65 F A higher temperature rise wil...

Page 49: ...ature Rise To avoid injury from moving parts or electrical shock shut off the power to the appliance before removing supply air blower compartment door and servicing this appliance All OH6 OH8 models...

Page 50: ...control as follows i Shut off incoming power ii Block return air opening or disconnect blower motor leads iii Restore power to appliance iv In the heating mode set the thermostat above room temperatu...

Page 51: ...erials damage from rust or corrosion soot or carbon build up EXTERIOR OF FURNACE The furnace exterior should be inspected for signs of excessive heat such as discoloration of materials and damage from...

Page 52: ...ents Contact a qualified service person to adjust and start burner E FILTER CLEANING AND LOCATION cWARNING To avoid injury from moving parts hot surfaces or electrical shock shut off the power to the...

Page 53: ...n and Routine Maintenance section of this manual 5 That failure to maintain and operate this appliance in accordance with these instructions could result in hazardous conditions property damage and bo...

Page 54: ...2 Burner Visually check the burner and below the burner for indications of oil leaks Correct any if found Remove the burner and measure the ignition electrode gap It should be set to 5 32 inch Adjust...

Page 55: ...rner and the burner mounting plates When removing the clean out plugs turn T handle counterclockwise approximately two 2 full turns or just until the plug is able to be pulled from tube Take care not...

Page 56: ...53 Figure 24 Heat Exchanger Clean Outs Vacuum Hose Length OH6 8FT OH8 8FT Fig 25 Recommended method and device for cleaning inside of heat exchanger...

Page 57: ...ey are not exceeding rating label current specifications for each component Also refer to Table 10 in the electrical wiring section of this manual for electrical specifications on these components 4 C...

Page 58: ...n extended period of time several steps can be taken to help insure a smooth and reliable restart of the heating system ON SHUTDOWN 1 Close oil supply or manual shutoff valve 2 Disconnect all electric...

Page 59: ...l line as soon as the burner motor starts rotating To bleed the fuel pump attach a clear plastic hose over the vent plug refer to Figure 27 Loosen the plug and catch the expelled oil in an empty conta...

Page 60: ...pon the mode of operation set at the thermostat The unit will cycle on and off automatically as required to maintain the air temperature within the residence as closely as possible to the thermostat s...

Page 61: ...imeter of the unit 1 At least every three months under normal usage conditions check and clean all air filters in the appliance and if present in the duct system If excessively dirty air filters are n...

Page 62: ...ay be necessary to restart the furnace and have the failure occur again For the model R7184B under normal operating conditions the LED will be continuously lit while the burner is operating If either...

Page 63: ...control primary control module according to the Honeywell instructions covering the devices The troubleshooting chart beginning on the following page should help identify the type of malfunction or de...

Page 64: ...61 VIII Sequence of Operations Flow Chart...

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Page 66: ...63 IX Trouble Shooting Flow Chart...

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Page 71: ...LINER FUEL LINE FILTER DRAFT CONTROL COMBUSTION TESTS Operate burner at least 10 minutes before CO2 in stack pipe INITIAL SERVICE SERVICE SERVICE INSTALLATION Draft Over fire Draft in stack pipe Smok...

Page 72: ...69 Appendix A Replacement Parts Replacement Parts for OH6FA072D...

Page 73: ...70 Replacement Parts for OH8FA119D...

Page 74: ...71 Appendix B Wiring Diagrams OH6FA072D48 PSC Wiring Diagram...

Page 75: ...72 OH6FA072DV4 ECM Wiring Diagram...

Page 76: ...73 OH6FX072DV4 ECM 2 Stage Wiring Diagram...

Page 77: ...74 OH8FA1119D60 PSC Wiring Diagram...

Page 78: ...75 OH8FA1119DV5 ECM Wiring Diagram...

Page 79: ...76...

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