Daikin DC97MC - IMPORTANT INFORMATION

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TABLE OF CONTENTS
T HE MANUFACTURER WILL NOT BE RESPONSIBLE FOR ANY INJURY OR PROPERTY DAMAGE ARISING FROM IMPROPER SERVICE OR SERVICE PROCEDURES . I F
YOU INSTALL OR PERFORM SERVICE ON THIS UNIT , YOU ASSUME RESPONSIBILITY FOR ANY PERSONAL INJURY OR PROPERTY DAMAGE WHICH MAY RESULT .
M
ANY JURISDICTIONS REQUIRE A LICENSE TO INSTALL OR SERVICE HEATING AND AIR CONDITIONING EQUIPMENT .
WARNING
COUNTERFLOW MODEL INSTALLED VERTICALLY .................... 26
DRAIN EXITING LEFT SIDE ........................................ 26
DRAIN EXITING RIGHT SIDE....................................... 26
COUNTERFLOW MODEL INSTALLED HORIZONTALLY WITH RIGHT SIDE
DOWN ...................................................... 26
MINIMUM 5 1/2” CLEARANCE IS REQUIRED FOR THE DRAIN TRAP BENEATH THE
FURNACE
. ........................................................... 26
COUNTERFLOW MODEL INSTALLED HORIZONTALLY WITH LEFT SIDE DOWN ..... 27
ELECTRICAL CONNECTIONS .................................................. 27
W
IRING HARNESS ......................................................... 28
115 VOLT LINE CONNECTIONS ............................................ 28
J
UNCTION BOX RELOCATION ............................................... 28
24 VOLT THERMOSTAT WIRING ............................................29
SINGLE-STAGE HEATING THERMOSTAT APPLICATION ........................... 30
24 V
OLT DEHUMIDISTAT WIRING ...........................................30
FOSSIL FUEL APPLICATIONS ................................................ 30
L
INE VOLTAGE A CCESSORIES (ELECTRONIC A IR CLEANER AND HUMIDIFIER)..... 30
24 VOLT HUMIDIFIER ..................................................... 31
GAS SUPPLY AND PIPING ................................................... 31
H
IGH A LTITUDE DERATE ................................................... 31
PROPANE GAS CONVERSION ................................................31
GAS PIPING CONNECTIONS ................................................. 32
PROPANE GAS TANKS AND PIPING .......................................... 34
CIRCULATING A IR & FILTERS ................................................ 35
D
UCT WORK - AIR FLOW .................................................. 35
CHECKING DUCT STATIC ................................................... 35
BOTTOM RETURN AIR OPENING [UPFLOW MODELS] ........................ 35
FILTERS - READ THIS SECTION BEFORE
INSTALLING THE RETURN A IR DUCT WORK ................................36
UPRIGHT INSTALLATIONS ....................................................37
HORIZONTAL INSTALLATIONS .................................................38
STARTUP PROCEDURE & ADJUSTMENT ........................... 38
H
EATING OPERATION WITH CTK01 THERMOSTAT (COMMUNICATING) ........... 39
HEATING OPERATION WITH CTK02**, CTK03**
& CTK04** THERMOSTAT (MODULATING COMMUNICATING)............... 39
CONDENSATE DRAIN TRAP PRIMING ......................................... 40
FURNACE OPERATION ...................................................... 40
GAS SUPPLY PRESSURE MEASUREMENT .....................................40
GAS MANIFOLD PRESSURE MEASUREMENT .................................. 41
GAS INPUT RATE MEASUREMENT (NATURAL GAS ONLY)......................42
TEMPERATURE RISE ....................................................... 42
CIRCULATOR BLOWER SPEEDS ..............................................43
BLOWER HEAT OFF DELAY TIMINGS ........................................ 45
COMFORTNET™ SYSTEM ............................................ 45
O
VERVIEW ................................................................45
AIRFLOW CONSIDERATIONS ................................................. 45
FOSSIL FUEL APPLICATIONS ................................................ 46
CTK0* WIRING .........................................................46
COMFORTNET™ SYSTEM A DVANCED FEATURES .............................. 46
DIP SWITCHES ........................................................ 46
N
ETWORK TROUBLESHOOTING .............................................. 48
SYSTEM TROUBLESHOOTING ................................................ 49
F
AULT RECALL SEQUENCE ................................................. 49
FAULT CLEAR SEQUENCE: ................................................. 49
NORMAL SEQUENCE OF OPERATION .............................. 49
P
OWER UP ............................................................... 49
HEATING MODE ........................................................... 49
C
OOLING MODE .......................................................... 50
F
AN ONLY MODE .........................................................50
OPERATIONAL CHECKS .............................................. 50
SAFETY CIRCUIT DESCRIPTION ..................................... 50
F
URNACE CONTROL BOARD ................................................51
PRIMARY LIMIT ............................................................ 51
A
UXILIARY LIMIT .......................................................... 51
ROLLOUT LIMIT ........................................................... 51
F
AN ONLY MODE .........................................................51
OPERATIONAL CHECKS .............................................. 51
SAFETY CIRCUIT DESCRIPTION ..................................... 51
F
URNACE CONTROL BOARD ................................................51
PRIMARY LIMIT ............................................................ 51
A
UXILIARY LIMIT .......................................................... 51
R
OLLOUT LIMIT ........................................................... 52
PRESSURE SWITCHES ...................................................... 52
FLAME SENSOR ........................................................... 52
TROUBLESHOOTING ................................................. 52
E
LECTROSTATIC DISCHARGE (ESD) PRECAUTIONS ............................ 52
DIAGNOSTIC CHART ....................................................... 52
RESETTING FROM LOCKOUT ............................................... 52
MAINTENANCE ........................................................ 53
A
NNUAL INSPECTION .......................................................53
FILTERS .................................................................. 53
BURNERS ................................................................. 53
INDUCED DRAFT AND CIRCULATOR BLOWERS .................................53
CONDENSATE TRAP AND DRAIN SYSTEM (QUALIFIED SERVICER ONLY) ......... 53
FLAME SENSOR (QUALIFIED SERVICER ONLY)................................ 54
BEFORE LEAVING AN INSTALLATION ............................... 54
REPAIR AND REPLACEMENT PARTS ................................ 54
TROUBLESHOOTING CODES ........................................ 55
WIRING DIAGRAM .................................................... 61
S
PECIAL INSTRUCTIONS FOR PRODUCTS INSTALLED ............................ 62
IN THE STATE OF MASSACHUSETTS .......................................62