1
OIL-FIRED WARM AIR
FURNACE
P-LBX16F14501 P-LBX20F19001
(Lowboy Models)
INTRODUCTION..................................................... 2
HEAT LOSS............................................................ 2
LOCATION OF UNIT .............................................. 2
AIR CONDITIONING............................................... 3
COMBUSTION AIR................................................. 3
CHIMNEY VENTING............................................... 3
OIL TANK ............................................................... 6
PIPING INSTALLATION......................................... 6
ELECTRICAL CONNECTIONS.............................. 6
CIRCULATING AIR BLOWER ............................... 7
OIL BURNER .......................................................... 8
FURNACE INSTALLATION SET-UP ..................... 9
MAINTENANCE AND SERVICE ............................ 9
OPERATING INSTRUCTIONS............................... 10
TABLE A-1: BECKETT OIL BURNER SET-UP .... 11
TABLE A-2: DIRECT DRIVE BLOWER SET-UP .. 11
TABLE A-3: BELT DRIVE BLOWER SET-UP ...... 11
TABLE A-4: DIRECT DRIVE BLOWER
CHARACTERISTICS .............................................. 12
TABLE A-5: BELT DRIVE BLOWER
CHARACTERISTICS .............................................. 12
WIRING DIAGRAM: MODEL P*LBX16F14501 ..... 13
WIRING DIAGRAM: MODEL P*LBX20F19001 ..... 13
R7184 TROUBLESHOOTING ................................ 14
R7184 DETAILED SEQUENCE OF OPERATION
(FIGURE 7) ............................................................. 14
R7184 LED DIAGNOSTIC LIGHT .......................... 16
TABLE C-2: R7184 TROUBLESHOOTING .......... 17
TABLE C-3: SYSTEM AND GENERAL
TROUBLESHOOTING............................................ 19
P*LBX20F19001 ASSEMBLY NOTES................... 23
INSTALLATION
INSTRUCTIONS
CONTENTS
Read this manual completely before beginning
installation.
Important: These instructions must be kept with
the furnace for future reference.
