Lennox O23V Series, Installation Instructions Manual

Page 1: ...sedes 10 2005 Table of Contents General 1 Shipping Packing List 1 O23V Unit Dimensions 2 O23V Unit Parts Arrangement 3 O23V Oil Burner Parts Arrangement 3 Requirements 4 Locate Level the Unit 4 Unit A...

Page 2: ...OW TOP VIEW RETURN AIR SIDE VIEW E RETURN AIR FRONT VIEW Figure 1 O23V Unit Dimensions Inches mm O23V Model A B C D E Q2 3 70 90 Q3 4 105 120 19 1 2 495 30 5 8 778 18 457 19 5 8 498 16 406 Q5 140 154...

Page 3: ...0 8 Figure 3 AIR TUBE SCREWS ELECTRONIC IGNITION TRANSFORMER FLANGE GASKET RETAIN ING CLIP IGNITOR PRIMARY CONTROL REAR ACCESS DOOR GASKET MAIN HOUSING ASSY AIR ADJUST DIAL 4X4 BOX BLOWER WHEEL INLET...

Page 4: ...i mum free area one half square inch per 1 000 Btu per hour input This combustion air should be brought into the area containing the furnace below the level of the furnace burner Table 2 O23V Installa...

Page 5: ...rner assembly from the vestibule By loosen ing the nuts and by turning the whole burner assembly counterclockwise figure 4 the entire burner assembly will come out of the furnace There is adequate wir...

Page 6: ...n outside or through any unconditioned space 6 Chimney should extend 3 feet 0 9 m above highest point where the vent passes through the roof and 2 feet 0 6 m higher than any portion of a building with...

Page 7: ...OR DEATH A living space which provides insufficient combustion air to the furnace can result in headaches nausea dizziness or asphyxiation CAUTION Insufficient combustion air to the furnace can cause...

Page 8: ...space shall be provided with two perma nent openings One opening shall be within 12 305 mm of the top of the enclosure and one within 12 305 mm of the bottom These openings must communicate directly o...

Page 9: ...from Common Venting System In the event that an existing furnace is removed from a venting system commonly run with separate appliances the venting system is likely to be too large to properly vent t...

Page 10: ...of the cabinet See unit dimensions on page 2 Using it as the center point cut a 6 inch 152 mm round hole in the cabinet s side Install the barometric draft control within 18 inches of the furnace flue...

Page 11: ...bing or steel pipe for oil supply pipe Install oil supply pipe under floor or near walls to protect it from damage Avoid running pipes along joists or reverberating surfaces Always use flare fittings...

Page 12: ...de the building between the tank shut off valve and the burn er Locate filter close to burner for easy maintenance Table 5 lists the filters for the O23V furnace Table 5 Installation Clearances inches...

Page 13: ...ted The Test jumper is used to operate the motor in the test mode See figure 17 Factory settings for the blower speed jumpers are given in the wiring diagram in figure 18 Figure 17 shows the blower co...

Page 14: ...age cooling closes the R to Y1 circuit on the A54 blower control board The blower motor runs at 57 CFM for the first 7 1 2 minutes of the 1st stage cooling demand After 7 1 2 minutes the blower motor...

Page 15: ...output to an electronic air cleaner The EAC terminal is energized when there is a call for heat cool or continuous blower See figure 18 Table 6 Blower Performance 0 through 0 80 in w g 0 through 200 P...

Page 16: ...Page 16 Figure 18 O23V Wiring Diagram P535277W Downloaded from ManualsNet com search engine...

Page 17: ...s above the range shown in the table check for high static pres sure Table 7 O23V Unit Nozzle Size Spray Angle Pattern Pump PSIG Input Rating BTU Hr Output Rating BTU Hr Head Temp Rise F 70 50GPH 80 A...

Page 18: ...ive Cleaning the Heat Exchanger 1 Remove the vent pipe from the furnace 2 Remove the locking screws and the caps from the clean out tubes Remove flue access elbow 3 Using a long spiral wire brush swee...

Page 19: ...rt Source Procedure Causes Correction Thermostat Check thermostat settings Thermostat in OFF or COOL Switch to HEAT Thermostat is set too low Turn thermostat to higher temperature Safety Overloads Che...

Page 20: ...flame is established Source Procedure Causes Correction Oil Supply Check tank gauge or use dip stick No oil in tank Fill tank Coat dip stick with litmus paste and insert into bottom of tank Water in o...

Page 21: ...ause of overloading Faulty motor Replace motor Troubleshooting Burner starts and fires but lock out on safety Source Procedure Causes Correction Poor Fire After burner fires immediately jumper across...

Page 22: ...ocedure Causes Correction Poor Fire After burner fires immediately jumper across flame detector terminals at the primary control SIf burner continues to run does not lock out of safety fault may be po...

Page 23: ...n air Air leaks into heat exchanger around inspection door etc Correct cause of air leak Excessive draft Adjust barometric draft control for correct draft Incorrect burner head adjustment Correct burn...

Page 24: ...nk Lift D Filter Type Inspect Change E Pressure Test F All fittings checked for tightness Thermostat A Type Heating Cooling B Anticipator Set C Wires New Old Air Filter A Filter Type Permanent Disposa...