Installation Instructions

3
Table of Contents
GAS SUPPLY PRESSURE MEASUREMENT .............................................................................................................................. 26
GAS MANIFOLD PRESSURE MEASUREMENT AND ADJUSTMENT .................................................................................................. 27
GAS INPUT RAT E MEASUREMENT (NATURAL GAS ONLY) ........................................................................................................... 30
TEMPERATURE RISE ......................................................................................................................................................... 30
CIRCULATOR BLOWER SPEEDS .......................................................................................................................................... 30
BLOWER HEAT OFF DELAY TIMINGS .................................................................................................................................... 32
COMFORTNET™ SYSTEM .......................................................................................................................................................... 32
O
VERVIEW ..................................................................................................................................................................... 32
FOSSIL FUEL APPLICATIONS .............................................................................................................................................. 33
CTK0* WIRING ............................................................................................................................................................. 33
COMFORTNET™ COMPATIBLE FURNACE WITH NON-COMFORTNET COMPATIBLE SINGLE-STAGE AIR CONDITIONER .............................. 34
COMFORTNET™ SYSTEM A DVANCED FEATURES ............................................................................................................................. 34
T
HERMOSTAT MENU ......................................................................................................................................................... 34
DIAGNOSTICS .................................................................................................................................................................. 34
FURNACE ADVANCED FEATURES MENUS (ACCESSED THROUGH COMMUNICATING THERMOSTAT)..................................................... 35
NETWORK TROUBLESHOOTING ........................................................................................................................................... 36
SYSTEM TROUBLESHOOTING .............................................................................................................................................. 36
N
ORMAL SEQUENCE OF OPERATION ............................................................................................................................................ 36
POWER UP .................................................................................................................................................................... 36
HEATING MODE ............................................................................................................................................................... 36
COOLING MODE ............................................................................................................................................................. 38
FAN ONLY MODE ............................................................................................................................................................ 38
OPERATIONAL CHECKS ............................................................................................................................................................. 38
SAFETY CIRCUIT DESCRIPTION ................................................................................................................................................... 38
INTEGRATED CONTROL MODULE ......................................................................................................................................... 39
PRIMARY LIMIT................................................................................................................................................................ 39
AUXILIARY LIMIT ............................................................................................................................................................. 39
ROLLOUT LIMIT .............................................................................................................................................................. 39
PRESSURE SWITCHES ...................................................................................................................................................... 39
FLAME SENSOR .............................................................................................................................................................. 39
TROUBLESHOOTING ................................................................................................................................................................. 39
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ................................................................................................................. 39
DIAGNOSTIC CHART ......................................................................................................................................................... 39
FAULT RECALL ................................................................................................................................................................ 39
FAULT CLEAR SEQUENCE: ................................................................................................................................................ 39
RESETTING FROM LOCKOUT .............................................................................................................................................. 40
MAINTENANCE ......................................................................................................................................................................... 40
ANNUAL INSPECTION ........................................................................................................................................................ 40
FILTERS ........................................................................................................................................................................ 40
BURNERS ...................................................................................................................................................................... 40
INDUCED DRAFT AND CIRCULATOR BLOWERS ....................................................................................................................... 41
FLAME SENSOR (QUALIFIED SERVICER ONLY)...................................................................................................................... 41
FLUE PASSAGES (QUALIFIED SERVICER ONLY) ..................................................................................................................... 41
BEFORE LEAVING AN INSTALLATION .............................................................................................................................................. 41
REPAIR AND REPLACEMENT PARTS .............................................................................................................................................. 41
TROUBLESHOOTING CHART ................................................................................................................................................. 42-46
STATUS CODES ...................................................................................................................................................................... 47
AIR FLOW DATA .................................................................................................................................................................... 48
DIP SWITCHES ....................................................................................................................................................................... 49
*MVC8, *CVC8 WHITE RODGERS GAS VALVE WIRING DIAGRAM .................................................................................. 50
*MVC8, *CVC8 HONEYWELL GAS VALVE WIRING DIAGRAM ......................................................................................... 51