Dettson OLR154F20A, Installation Instructions And Homeowner'S Manual

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TABLE OF CONTENTS
1 SAFETY REGULATIONS ..................................... 3
1.1 SAFETY LABELING AND WARNING SIGNS ...... 3
1.2 IMPORTANT INFORMATION ............................... 3
1.3 DETECTION SYSTEMS ....................................... 3
1.4 DANGER OF FREEZING ...................................... 3
2 INSTALLATION .................................................... 4
2.1 POSITIONING THE FURNACE ............................ 4
2.1.1 Installation in an enclosure ................................... 4
2.2 ELECTRICAL SYSTEM ........................................ 4
2.3 INSTALLATION OF THE THERMOSTAT ............. 4
2.4 INSTALLATION OF THE BURNER ...................... 5
2.4.1 Nozzles ................................................................. 5
2.4.2 Air and Turbulator Settings ................................... 5
2.4.3 Post purge delay adjustment ................................ 5
2.5 VENTING .............................................................. 5
2.5.1 Masonry chimney .................................................. 5
2.5.2 Factory Built Chimneys ......................................... 5
2.5.3 Draft Regulator ..................................................... 5
2.5.4 Side-wall venting ................................................... 6
2.6 BLOCKED VENT SHUT-OFF DEVICE (BVSO)
FOR CHIMNEY VENTING .................................... 6
2.6.1 BVSO Performance Test ...................................... 6
2.7 COMBUSTION AIR SUPPLY AND VENTILATION 6
2.7.1 Contaminated Combustion Air .............................. 6
2.7.2 Burner with Outdoor Combustion Air Kit ............... 6
2.8 OIL TANK .............................................................. 6
2.9 DUCTING .............................................................. 7
2.9.1 Air filter .................................................................. 7
2.10 SUPPLY AIR ADJUSTMENT (4 SPEED MOTOR) 7
2.10.1 Supply air adjustment (ECM variable speed
motors) .................................................................. 8
2.11 INSTALLATION OF ACCESSORIES .................... 8
2.11.1 Humidifier (HUM) .................................................. 8
2.11.2 Electronic air Cleaner (EAC) ................................. 8
2.11.3 Air Conditioner (or Heat Pump)............................. 8
2.11.4 Emergency Heating Mode
– Variable Speed Motor
(ECM) .................................................................... 8
3 OPERATION ......................................................... 9
3.1 START-UP ............................................................ 9
3.2 OPERATING SEQUENCE OIL HEATING MODE . 9
3.3 CHECKS AND ADJUSTMENTS ........................... 9
3.3.1 Purging the oil line ................................................ 9
3.3.2 Pressure adjustment ............................................. 9
3.3.3 Combustion Check ............................................... 9
3.3.4 Draft Regulator adjustment ................................... 9
3.3.5 Overfire pressure test ......................................... 10
3.3.6 Vent Temperature Test ....................................... 10
3.3.7 Supply air Temperature Rise Test ...................... 10
3.3.8 Limit Control Check ............................................ 10
3.3.9 Restart after burner failure .................................. 10
4 MAINTENANCE .................................................. 10
4.1 CLEANING THE HEAT EXCHANGER ............... 10
4.2 CLEANING THE BLOCKED VENT SHUT-OFF
DEVICE (BVSO) ................................................. 11
4.3 CLEANING OF THE BURNER HEAD ................. 11
4.4 REPLACING THE NOZZLE ................................ 11
4.5 REPLACING THE OIL FILTER ........................... 11
4.6 REPLACING THE AIR FILTER ........................... 11
5 FURNACE INFORMATION ................................. 12
INDEX OF TABLES
Table 1: Blower speed adjustments (heating mode, 4
speed motor) ................................................... 7
Table 2: Blower speed adjustments (A/C mode, 4 speed
motor) .............................................................. 7
Table 3: Heating Mode .................................................. 8
Table 4: Air Conditioning Mode ..................................... 8
Table 5: CFM adjustment - All Modes ........................... 8
Table 6: Delay adjustments - Heating Mode .................. 8
Table 7: Technical Specifications ................................ 13
Table 8: Airflow Data, Models with 1.0 HP variable
speed (ECM) motors ...................................... 14
Table 9: Airflow Data, Models with 1.0 HP 4 speed
motors ............................................................ 15
Table 10: Minimum clearances from combustible material
15
Table 11: Parts List - With 4 Speed motor PSC ............ 20
Table 12: Parts List - With variable speed motor ECM .. 22
INDEX OF FIGURES
Figure 1:
Location and dimensions of ventilation air
openings in a closet door .............................. 4
Figure 2: Heating & Air Conditioning - With 4 Speed
Motor ............................................................. 4
Figure 3: Thermostat Wiring- Heating & Air
Conditioning - With ECM Variable Speed
Motor ............................................................. 5
Figure 4: Thermostat Wiring-Heating &Air
Conditioning/HeatPump - With ECM Variable
Speed Motor ................................................. 5
Figure 5: Blower "OFF" delay - Board #ST9103A ........ 7
Figure 6: Blower start / stop delays - Board #1158 ...... 7
Figure 7: Furnace Dimensions ................................... 16
Figure 8: Wiring Diagram - 4 Speed Motor (PSC) ..... 17
Figure 9: Wiring Diagram - Variable Speed Motor
(ECM) .......................................................... 18
Figure 10: Parts List - With 4 Speed motor PSC ......... 19
Figure 11: Parts List - With variable speed motor ECM
.................................................................... 21