30318 R4 9/9/2005 2
TABLE OF CONTENTS INTRODUCTION..........................................................................................................................................................................3
HEAT LOSS.................................................................................................................................................................................3
LOCATION OF UNIT...................................................................................................................................................................3
AIR CONDITIONING....................................................................................................................................................................4
COMBUSTION AIR......................................................................................................................................................................5
CHIMNEY VENTING....................................................................................................................................................................5
DRAFT REGULATOR CONTROL...............................................................................................................................................5
OPTIONAL SIDE WALL VENTING.............................................................................................................................................7
OIL TANK....................................................................................................................................................................................7
PIPING INSTALLATION..............................................................................................................................................................7
ELECTRICAL CONNECTIONS...................................................................................................................................................7
FAN TIMER BOARD AND LIMIT CONTROL..............................................................................................................................8
CIRCULATING AIR BLOWER.................................................................................................................................................... 8
HUMIDIFIER................................................................................................................................................................................9
OIL BURNER...............................................................................................................................................................................9
FURNACE INSTALLATION SET-UP........................................................................................................................................10
MAINTENANCE AND SERVICE...............................................................................................................................................11
OPERATING INSTRUCTIONS..................................................................................................................................................12
APPENDIX A- WML-C AND MPL-B BURNER SET UP............................................................................................................13
A.1 OIL BURNER AIR ADJUSTMENT......................................................................................................................................14
A.2 BURNER ELECTRODES....................................................................................................................................................14
A.3 START UP...........................................................................................................................................................................14
A.4 SPECIAL INSTRUCTIONS FOR UNITS EQUIPPED WITH RIELLO BURNERS...............................................................14
TABLE A-6 DIRECT DRIVE BLOWER SET-UP....................................................................................................................... 15
TABLE A-8 DIRECT DRIVE BLOWER CHARACTERISTICS..................................................................................................15
TABLE A-9 GENERAL DIMENSIONS (INCHES)..................................................................................................................... 16
APPENDIX B: WIRING DIAGRAMS.........................................................................................................................................17
OPERATION OF OIL BURNER.................................................................................................................................................21
APPENDIX C-R7184 TROUBLESHOOTING............................................................................................................................22
R7184 DETAILED SEQUENCE OF OPERATION (FIGURE 7).................................................................................................22
TABLE C-1: ELECTRONIC FAN TIMER BOARD (EFT) DETAILED SEQUENCE OF OPERATION......................................25
R7184 LED DIAGNOSTIC LIGHT............................................................................................................................................. 26
TABLE C-3: R7184 TROUBLESHOOTING.............................................................................................................................. 27
TABLE C4: SYSTEM AND GENERAL TROUBLESHOOTING................................................................................................29
FINAL CHECK OUT..................................................................................................................................................................31
PARTS LISTING: COUNTERFLOW HORIZONTAL MODEL: WML C.....................................................................................32
HOMEOWNER’S REFERENCE TABLE................................................................................................................................... 38
NOTES:......................................................................................................................................................................................39