2
MASONRY CHIMNEYS ....................................................11
Masonry Chimney Termination..........................................11
ELECTRICAL CONNECTIONS........................................11
Wiring Harness................................................................ 12
115 Volt Line Connections............................................... 12
Fossil Fuel Applications................................................... 12
Junction Box Relocation.................................................. 12
24 Volt Thermostat Wiring............................................... 13
115 Volt Line Connection of Accessories......................... 13
Twinning.......................................................................... 14
GAS SUPPLY AND PIPING............................................ 14
High Altitude Derate........................................................ 14
Propane Gas Conversion................................................ 14
Gas Piping Connections.................................................. 15
Gas Piping Checks ......................................................... 16
Propane Gas Tanks and Piping........................................ 17
DUCTWORK ................................................................... 17
Filters - Read This Section Before
Installing The Return Air Ductwork................................... 17
SEQUENCE OF OPERATION
(INTEGRATED IGNITION CONTROL) ............................ 18
Power Up.......................................................................... 18
Heating Mode................................................................... 18
(Mode DIP switch is set to “1 STG” position)................... 18
Cooling Mode................................................................... 18
Fan Only Mode................................................................. 18
START-UP PROCEDURE AND ADJUSTMENT.............. 19
Furnace Operation........................................................... 19
Furnace Start-up.............................................................. 19
Furnace Shutdown........................................................... 19
Gas Supply Pressure Measurement................................ 19
Gas Manifold Pressure Measurement
and Adjustment................................................................. 20
Gas Input Rate Measurement (Natural Gas Only)........... 21
Temperature Rise............................................................. 21
Circulator Blower Speed Adjustment................................ 22
OPERATIONAL CHECKS................................................ 22
Checking Duct Static........................................................ 22
Burner Flame.................................................................... 22
SAFETY CIRCUIT DESCRIPTION................................... 23
General............................................................................. 23
Integrated Control Module................................................ 23
Primary Limit..................................................................... 23
Auxiliary Limit................................................................... 23
Rollout Limits.................................................................... 23
Pressure Switches............................................................ 23
Flame Sensor.................................................................... 23
TROUBLESHOOTING...................................................... 23
Diagnostic Chart............................................................... 23
Resetting From Lockout.................................................... 23
MAINTENANCE............................................................... 23
Annual inspection............................................................. 23
Filters................................................................................ 24
Filter Maintenance............................................................ 24
Filter Removal.................................................................. 24
Induced Draft and Circulator Blower Motors.................... 24
Burners............................................................................ 24
CLEANING (QUALIFIED SERVICER ONLY).................. 24
BEFORE LEAVING AN INSTALLATION.......................... 25
REPAIR AND REPLACEMENT PARTS........................... 25
Component ID.................................................................. 26
Troubleshooting Chart...................................................... 27
TROUBLESHOOTING CHART
PCBBF145 CONTROL BOARD....................................... 27
BLOWER PERFORMANCE DATA................................... 30
DC80SE........................................................................... 30
DM80SE.......................................................................... 32
DM80SE / DC80SE Wiring Diagram................................ 36
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