Instructions / Assembly
3
Table of Contents
GAS SUPPLY PRESSURE MEASUREMENT .............................................................................................................................. 26
GAS MANIFOLD PRESSURE MEASUREMENT AND ADJUSTMENT .................................................................................................. 27
GAS INPUT RAT E MEASUREMENT (NATURAL GAS ONLY) ........................................................................................................... 29
TEMPERATURE RISE ......................................................................................................................................................... 29
CIRCULATOR BLOWER SPEEDS .......................................................................................................................................... 29
BLOWER HEAT OFF DELAY TIMINGS .................................................................................................................................... 31
COMFORTNET™ SYSTEM .......................................................................................................................................................... 31
O
VERVIEW ..................................................................................................................................................................... 31
FOSSIL FUEL APPLICATIONS .............................................................................................................................................. 32
CTK0* WIRING ............................................................................................................................................................. 32
COMFORTNET™ COMPATIBLE FURNACE WITH NON-COMFORTNET COMPATIBLE SINGLE-STAGE AIR CONDITIONER .............................. 33
COMFORTNET™ SYSTEM A DVANCED FEATURES ............................................................................................................................. 33
T
HERMOSTAT MENU ......................................................................................................................................................... 33
DIAGNOSTICS .................................................................................................................................................................. 33
FURNACE ADVANCED FEATURES MENUS (ACCESSED THROUGH COMMUNICATING THERMOSTAT)..................................................... 34
NETWORK TROUBLESHOOTING ........................................................................................................................................... 35
SYSTEM TROUBLESHOOTING .............................................................................................................................................. 35
N
ORMAL SEQUENCE OF OPERATION ............................................................................................................................................ 35
POWER UP .................................................................................................................................................................... 35
HEATING MODE ............................................................................................................................................................... 35
COOLING MODE ............................................................................................................................................................. 37
FAN ONLY MODE ............................................................................................................................................................ 37
OPERATIONAL CHECKS ............................................................................................................................................................. 37
SAFETY CIRCUIT DESCRIPTION ................................................................................................................................................... 37
INTEGRATED CONTROL MODULE ......................................................................................................................................... 38
PRIMARY LIMIT ................................................................................................................................................................ 38
AUXILIARY LIMIT ............................................................................................................................................................. 38
ROLLOUT LIMIT .............................................................................................................................................................. 38
PRESSURE SWITCHES ...................................................................................................................................................... 38
FLAME SENSOR .............................................................................................................................................................. 38
TROUBLESHOOTING ................................................................................................................................................................. 38
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ................................................................................................................. 38
DIAGNOSTIC CHART ......................................................................................................................................................... 38
FAULT RECALL ................................................................................................................................................................ 38
FAULT CLEAR SEQUENCE: ................................................................................................................................................ 38
RESETTING FROM LOCKOUT .............................................................................................................................................. 39
MAINTENANCE ......................................................................................................................................................................... 39
ANNUAL INSPECTION ........................................................................................................................................................ 39
FILTERS ........................................................................................................................................................................ 39
BURNERS ...................................................................................................................................................................... 39
INDUCED DRAFT AND CIRCULATOR BLOWERS ....................................................................................................................... 40
FLAME SENSOR (QUALIFIED SERVICER ONLY) ...................................................................................................................... 40
FLUE PASSAGES (QUALIFIED SERVICER ONLY) ..................................................................................................................... 40
BEFORE LEAVING AN INSTALLATION .............................................................................................................................................. 40
REPAIR AND REPLACEMENT PARTS .............................................................................................................................................. 40
TROUBLESHOOTING CHART ...................................................................................................................................................... 41
STATUS CODES ...................................................................................................................................................................... 46
AIR FLOW DATA .................................................................................................................................................................... 47
DIP SWITCHES ....................................................................................................................................................................... 48
*MVC8, *DVC8 WHITE RODGERS GAS VALVE WIRING DIAGRAM .................................................................................. 49
*MVC8, *DVC8 HONEYWELL GAS VALVE WIRING DIAGRAM ......................................................................................... 50