Daikin DM96SE - Considerations

2
S AFETY C ONSIDERATIONS
IMPORTANT NOTE: This unit is designed to meet the NOX
requirement of 14Ng/J maximum as required by the South
Coast Air Quality Management District and the San Joaquin
Valley Air Pollution Control District, both in the State of
California,and is intended for installation in those dis-
tricts only.
This unit has a Control System that compensates for cer-
tain installation and environmental conditions. This unit
must:
• Be properly installed, operated, and maintained
per the instructions.
• Be serviced only by properly trained Service
Technicians.
This unit is not approved for use with gasses other than
Natural Gas.
CONDENSATE DRAIN LINES & DRAIN TRAP ..........................16
GENERAL DRAIN INFORMATION ...................................17
FIELD SUPPLIED DRAIN ..........................................17
UPFLOW MODEL INSTALLED VERTICALLY ..........................17
DRAIN EXITING RIGHT SIDE ......................................17
DRAIN EXITING LEFT SIDE .......................................18
UPFLOW MODEL INSTALLED HORIZONTALLY WITH RIGHT SIDE DOWN 18
UPFLOW MODEL INSTALLED HORIZONTALLY WITH LEFT SIDE DOWN .19
U
PFLOW MODEL INSTALLED HORIZONTALLY
WITH LEFT SIDE DOWN - ALTERNATE .........................19
ELECTRICAL CONNECTIONS .........................................20
WIRING HARNESS ...............................................20
115 VOLT LINE CONNECTIONS ..................................20
JUNCTION BOX RELOCATION ....................................20
24 VOLT THERMOSTAT WIRING .................................21
SINGLE-STAGE HEATING THERMOSTAT APPLICATION ...............21
FOSSIL FUEL APPLICATIONS ......................................21
GAS SUPPLY AND PIPING ...........................................21
GAS PIPING CONNECTIONS ......................................22
CIRCULATING AIR & FILTERS .......................................23
DUCT WORK - AIR FLOW ........................................23
CHECKING DUCT STATIC .........................................24
BOTTOM RETURN AIR OPENING [UPFLOW MODELS] ..............24
FILTERS - READ THIS SECTION
BEFORE INSTALLING THE RETURN AIR DUCT WORK .............25
UPRIGHT INSTALLATIONS.........................................25
HORIZONTAL INSTALLATIONS .....................................26
DRAIN TRAP PRIMING ...........................................26
FURNACE OPERATION............................................26
GAS SUPPLY PRESSURE MEASUREMENT ...........................26
GAS MANIFOLD PRESSURE MEASUREMENT AND ADJUSTMENT .......27
GAS INPUT RATE MEASUREMENT (NATURAL GAS ONLY)...........28
TEMPERATURE RISE .............................................28
C
IRCULATOR BLOWER SPEEDS ....................................28
BLOWER HEAT OFF DELAY TIMINGS ..............................29
NORMAL SEQUENCE OF OPERATION .................................29
POWER UP .....................................................29
HEATING MODE .................................................29
COOLING MODE ................................................29
FAN ONLY MODE ...............................................29
OPERATIONAL CHECKS..............................................30
S
AFETY CIRCUIT DESCRIPTION ......................................30
INTEGRATED CONTROL MODULE ..................................30
PRIMARY LIMIT .................................................30
AUXILIARY LIMIT ................................................30
BURNER TEMPERATURE SWITCH ..................................30
PRESSURE SWITCHES.............................................30
FLAME SENSOR .................................................30
TROUBLESHOOTING ................................................30
ELECTROSTATIC DISCHARGE (ESD) PRECAUTIONS..................30
RESETTING FROM LOCKOUT .....................................31
MAINTENANCE .....................................................31
ANNUAL INSPECTION ............................................31
FILTERS ........................................................31
30
BURNERS .......................................................32
INDUCED DRAFT AND CIRCULATOR BLOWERS ......................32
CONDENSATE TRAP AND DRAIN SYSTEM (QUALIFIED SERVICER ONLY)32
FLAME SENSOR (QUALIFIED SERVICER ONLY) ......................32
FLUE PASSAGES (QUALIFIED SERVICER ONLY) ......................32
BEFORE LEAVING AN INSTALLATION ..................................32
REPAIR AND REPLACEMENT PARTS ...................................32
DIAGNOSTIC CHART ................................................33
AIRFLOW
DM96SE ......................................................34
WIRING DIAGRAM
DM96SE ......................................................35
Units that are not installed, maintained, or operated prop-
erly may result in “noisy” operation during the Heating
Cycle. If this unit is making unusual or objectionable noises
during the Heating Cycle, turn the heat off at the thermo-
stat and contact a qualified Service organization right
away.
Adhere to the following warnings and cautions when install-
ing, adjusting, altering, servicing, or operating the furnace.
To ensure proper installation and operation, thoroughly read
this manual for specifics pertaining to the installation and
application of this product.
This furnace is manufactured for use with natural gas.