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DM80(H,S)S/DD80(H,S)S/DM80HE
GAS FURNACE -
These furnaces comply with requirements embodied in the
American National Standard / National Standard of Canada
ANSI Z21.47·CSA-2.3 Gas Fired Central Furnaces.
ATTENTION INSTALLING PERSONNEL
As a professional installer, you have an obligation to know the
product better than the customer. This includes all safety pre-
cautions and related items.
Prior to actual installation, thoroughly familiarize yourself
with this Instruction Manual. Pay special attention to all safety
warnings. Often during installation or repair, it is possible to
place yourself in a position which is more hazardous than
when the unit is in operation.
Remember, it is your responsibility to install the product safely
and to know it well enough to be able to instruct a customer in
its safe use.
Safety is a matter of common sense...a matter of thinking be-
fore acting. Most dealers have a list of specific, good safety
practices...follow them.
The precautions listed in this Installation Manual are intended
as supplemental to existing practices. However, if there is a
direct conflict between existing practices and the content of
this manual, the precautions listed here take precedence.
R
ECOGNIZE THIS SYMBOL
AS A SAFETY PRECAUTION
NOTE: Please contact your distributor or our website listed
below for the applicable Specification Sheet referred to in this
manual.
WARNING
D
AIKIN WILL NOT BE RESPONSIBLE FOR ANY INJURY OR PROPERTY DAMAGE
ARISING FROM IMPROPER SERVICE OR SERVICE PROCEDURES
OR PERFORM SERVICE ON THIS UNIT
PERSONAL INJURY OR PROPERTY DAMAGE WHICH MAY RESULT
JURISDICTIONS REQUIRE A LICENSE TO INSTALL OR SERVICE HEATING AND AIR
.
CONDITIONING EQUIPMENT
IOD-2005C
11/2015
CATEGORY 1
. I
F YOU INSTALL
,
YOU ASSUME RESPONSIBILITY FOR ANY
. M
ANY
Our continuing commitment to quality products may mean a change in specifications without notice.
© 2013 - 2015
5151 San Felipe St., Suite 500, Houston, TX 77056
www.daikincomfort.com
INSTALLATION INSTRUCTIONS
I
NDEX
SAFETY CONSIDERATIONS ......................................................... 3
Additional Safety Considerations ............................ 4
Shipping Inspection .................................................. 4
To The Installer ......................................................... 5
PRODUCT APPLICATION ............................................................ 5
Clearances and Accessibility ................................... 7
Installation Positions .............................................. 7
Horizontal Installation ............................................. 8
Furnace Suspension ................................................. 8
Existing Furnace Removal ........................................ 8
Thermostat Location ................................................. 8
CATEGORY I VENTING (VERTICAL VENTING) .............................. 9
(Category I Furnaces Only) ..................................... 10
Checklist Summary ................................................. 11
vented into this chimney channel ...................... 12
Check 3 - Chimney Crown Condition. ..................... 12
Check 4 - Debris in Cleanout .................................. 12
Check 5 - Liner Condition. ....................................... 12
Check 6 - Dilution Air. ............................................. 12
Check 7 - Complete the Installation. ...................... 13
Fix 1 - Liner Termination ......................................... 13
Fix 2 -Change Venting Arrangements ...................... 13
Fix 3 - Rebuild the Crown ........................................ 13
Fix 4 - Relining ........................................................ 13
Installer: Affix all manuals
adjacent to the unit.

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  • Page 1: Table Of Contents

    INSTALLATION INSTRUCTIONS DM80(H,S)S/DD80(H,S)S/DM80HE GAS FURNACE - CATEGORY 1 These furnaces comply with requirements embodied in the American National Standard / National Standard of Canada Installer: Affix all manuals ANSI Z21.47·CSA-2.3 Gas Fired Central Furnaces. adjacent to the unit. ATTENTION INSTALLING PERSONNEL As a professional installer, you have an obligation to know the NDEX product better than the customer.
  • Page 2 ELECTRICAL CONNECTIONS ............. 14 OPERATIONAL CHECKS ............28 Wiring Harness ............14 Checking Duct Static ..........28 115 Volt Line Connections ........14 Burner Flame ............29 Fossil Fuel Applications ......... 14 SAFETY CIRCUIT DESCRIPTION ..........29 Junction Box Relocation ......... 14 General ..............
  • Page 3: Safety Considerations

    WARNING WARNING WILL NOT BE RESPONSIBLE FOR ANY INJURY OR PROPERTY O PREVENT PERSONAL INJURY OR DEATH DUE TO IMPROPER AIKIN DAMAGE ARISING FROM IMPROPER SERVICE OR SERVICE PROCEDURES INSTALLATION ADJUSTMENT ALTERATION SERVICE OR MAINTENANCE F YOU INSTALL OR PERFORM SERVICE ON THIS UNIT YOU ASSUME REFER TO THIS MANUAL OR ADDITIONAL ASSISTANCE OR...
  • Page 4: Additional Safety Considerations

    RISQUE D'EMPOISONNEMENT AU MONOXYDE DE CARBONE Advertencia especial para la instalación de calentadores ó manejadoras de aire en áreas cerradas como estacionamientos ó cuartos de servicio. Cette ventilation est nécessaire pour éviter le danger d'intoxication Las emisiones de monóxido de carbono pueden circular a través au CO pouvant survenir si un appareil produisant du monoxyde del aparato cuando se opera en cualquier modo.
  • Page 5: To The Installer

    Use the following precautions during furnace installation and ser- In such applications , the furnace must be installed with the fol- vicing to protect the integrated control module from damage. By lowing stipulations: putting the furnace, the control, and the person at the same elec- •...
  • Page 6: Location Requirements And Considerations

    WARNING WARNING O PREVENT PROPERTY DAMAGE PERSONAL INJURY OR DEATH DUE TO O PREVENT POSSIBLE EQUIPMENT DAMAGE PROPERTY DAMAGE FIRE DO NOT INSTALL THIS FURNACE IN A MOBILE HOME TRAILER PERSONAL INJURY OR DEATH THE FOLLOWING BULLET POINTS MUST BE RECREATIONAL VEHICLE OBSERVED WHEN INSTALLING THIS UNIT To ensure proper furnace operation, install, operate and maintain...
  • Page 7: Clearances And Accessibility

    For vertical (upflow or downflow) applications, the Vent Pipe Clearance to Combustibles- 6" using Single Wall Connector or 1" minimum cooling coil width shall not be less than furnace using B-1 vent. width minus 1”. Additionally, a coil installed above an upflow furnace or under a counterflow furnace may be Top - 1"...
  • Page 8: Horizontal Installation

    ORIZONTAL NSTALLATION XISTING URNACE EMOVAL NOTE: When an existing furnace is removed from a venting system serving other appliances, the venting system may be too large to properly vent the remaining attached appliances. The following vent testing procedure is reproduced from the Ameri- can National Standard/National Standard of Canada for Gas-Fired Central Furnaces ANSI Z21.47-Latest Edition, CSA-2.3-Latest Edi- tion Section 1.23.1.
  • Page 9: Combustion And Ventilation Air Requirements

    120-140 290°F SUFFICIENT FRESH AIR FOR PROPER COMBUSTION AND VENTILATION OF Note: This kit is for use on Daikin brand 80% AFUE, 33” tall “HS” FLUE GASES MUST BE SUPPLIED OST HOMES REQUIRE OUTSIDE AIR BE and “SS” model furnaces installed in the upflow position only.
  • Page 10: Exterior Masonry Chimneys (Categoryi Furnaces Only )

    Venting - Furnace Installed in Horizontal Position Vent the furnace in accordance with the National Fuel Gas Code NFPA54/ANSI Z223.1-latest edition. THIS FURNACE IS NOT DESIGN CERTIFIED TO BE HORIZONTALLY VENTED THROUGH AN EXTERIOR SIDE WALL. WARNING The following describes an optional venting procedure when the EVER ALLOW THE PRODUCTS OF COMBUSTION INCLUDING CARBON furnace is installed in the horizontal left discharge position.
  • Page 11: Checklist Summary

    1 - P HECKLIST UMMARY HECK ROPER CHIMNEY TERMINATION This checklist serves as a summary of the items to be checked A masonry chimney used as a vent for gas fired equipment must before venting an 80+ furnace into a masonry chimney. In addi- extend at least three feet above the highest point where it passes tion, we recommend that a qualified serviceman use this checklist through the roof.
  • Page 12: Check 2 - Any Solid Or Liquid Fuel Appliances Vented Into This Chimney Channel

    2 - A Remember that all appliances must be vented inside the liner. HECK NY SOLID OR LIQUID FUEL APPLIANCES VENTED INTO THIS Venting one appliance inside the liner and another appliance out- CHIMNEY CHANNEL side the liner is not acceptable. Solid fuel appliances include fireplaces, wood stoves, coal fur- Next, use a flashlight and small mirror to sight up the liner.
  • Page 13: Check 7 - Complete The Installation

    7 - C 3 - R HECK OMPLETE THE NSTALLATION EBUILD THE ROWN If Checks 1 through 6 have been satisfactory, and the liner is an If the chimney crown is damaged, a qualified mason must repair it acceptable size as determined by the tables in National Fuel Gas in accordance with nationally recognized building codes or stan- Code NFPA 54/ANSI Z223.1 - latest edition and in the National dards.
  • Page 14: Electrical Connections

    To install the liner, read and follow the liner manufacturer’s in- WARNING structions and your local codes. Excess liner length should be pulled out of the chimney and cut off. Use caution when doing this, HIGH VOLTAGE ! as the cut edges of flexible liners may be sharp. Do not spiral O AVOID THE RISK OF INJURY ELECTRICAL SHOCK OR excess liner inside of the chimney.
  • Page 15: Volt Thermostat Wiring

    Line voltage connections can be made through either the right or This furnace is equipped with a blower door interlock switch which left side panel. The furnace is shipped configured for a right side interrupts unit voltage when the blower door is opened for servic- electrical connection.
  • Page 16: Setting The Heat Anticipator

    Control Module ECO-TECH Neutral 120 VAC Hot 120 VAC MOTOR Field Furnace Supplied Control Air Cleaner Relay Optional Accessories DM80HE, DD80HS & DM80HS MODELS ONLY Heating/Cooling If it is necessary for the installer to supply additional line voltage Room Thermostat wiring to the inside of the furnace, the wiring must conform to all local codes, and have a minimum temperature rating of 105°C.
  • Page 17: High Altitude Derate

    Models using Single Stage Gas Valves INLET GAS SUPPLY PRESSURE Natural Gas Minimum: 4.5" w.c. Maximum: 10.0" w.c. Manifold Pressure Altitude Orifice Pressure Sw itch Propane Gas Minimum: 11.0" w.c. Maximum: 13.0" w.c. NOTE: Adjusting the minimum supply pressure below the limits in Natural None 3.5"...
  • Page 18: Upflow Installations

    – Natural Gas Capacity of Pipe Protect connectors and semi-rigid tubing against In Cubic Feet of Gas Per Hour (CFH) physical and thermal damage when installed. Ensure Length of Nominal Black Pipe Size aluminum-alloy tubing and connectors are coated to Pipe in Feet 1/2"...
  • Page 19: Propane Gas Tanks And Piping

    3. Pressure drop in lines between regulators, and between WARNING second stage regulator and the appliance. Pipe size will depend on length of pipe run and total load of all O AVOID THE POSSIBILITY OF EXPLOSION OR FIRE NEVER USE A MATCH appliances.
  • Page 20: Circulating Air And Filters

    ILTERS ECTION EFORE NSTALLING ETURN IRCULATING IR AND ILTERS UCTWORK UCTWORK Filters must be used with this furnace. Discuss filter maintenance with the building owner. Filters do not ship with this furnace, but WARNING must be provided by the installer. Filters must comply with UL900 EVER ALLOW THE PRODUCTS OF COMBUSTION INCLUDING CARBON or CAN/ULCS111 standards.
  • Page 21 Consider installing an air cleaner with deep-pleated media filter at the time of furnace installation. A deep-pleated filter with a MERV rating of 8 (minimum) will often provide better filtration to protect equipment and the air distribution system than a standard 1" filter and often has lower static pressure loss than a 1"...
  • Page 22: Sequence Of Operation (Integrated Ignition Control)

    • Integrated control module performs safety circuit checks. EQUENCE OF PERATION NTEGRATED GNITION ONTROL • Induced draft blower is energized for 15 second prepurge Refer to Timing Charts for sequencing. period causing pressure switch contacts to close. • NOTE: DIP switch positions referenced in this section applies to Igniter warm up begins after 15 second prepurge expires.
  • Page 23: Fan Only Mode

    • 2. Turn off the electrical power to the furnace. R and Y thermostat contacts open, completing the call for cool. 3. Set the room thermostat to the lowest possible setting. • Outdoor fan and compressor are de-energized. 4. Remove the burner compartment door. •...
  • Page 24: Power Tools

    7. Using a leak detection solution or soap suds, check for ODELS USING INGLE TAGE ALVES leaks at outlet pressure tap plug (Honeywell valve) or screw The line pressure supplied to the gas valve must be within the (White-Rodgers valve). Bubbles forming indicate a leak. range specified below.
  • Page 25: Gas Manifold Pressure Measurement

    2. Connect a calibrated water manometer (or appropriate gas Open to Atmosphere pressure gauge) at either the gas valve inlet pressure tap or the gas piping drip leg. See Honeywell gas valve figure or High Fire Regulator Outlet Adjust White-Rodgers gas valve figure for location of inlet pressure Regulator Pressure Boss tap.
  • Page 26 13. Turn ON electrical power and gas supply to the system. WARNING 14. Close thermostat contacts to provide a call for heat. HIGH VOLTAGE ! 15. Retest for leaks. If bubbles form, SHUT OFF GAS AND REPAIR ALL LEAKS IMMEDIATELY! ISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT ULTIPLE POWER SOURCES MAY...
  • Page 27: Gas Input Rate Measurement (Natural Gas Only)

    14. Turn on electrical power and gas supply to the system. An incorrect temperature rise can cause condensing in or over- heating of the heat exchanger. Determine and adjust the tempera- 15. Close thermostat contacts “R” and “W1/W2” to energize ture rise as follows.
  • Page 28: Circulator Blower Fan Timing Adjustment

    To adjust the circulator blower speed, proceed as follows: highest input rate. For this mode of operation, the furnace oper- 1. Turn OFF power to the furnace. ates at the low input rate for a pre-determined time period then steps to the high input rate. Operation is as described under 2.
  • Page 29: Burner Flame

    3. The difference between the two numbers is .4” w.c. WARNING Example: static reading from return duct = -.1" w.c. O AVOID PERSONAL INJURY OR DEATH DO NOT REMOVE ANY static reading from supply duct = .3" w.c. INTERNAL COMPARTMENT COVERS OR ATTEMPT ANY ADJUSTMENT total external static pressure on this system = .4"...
  • Page 30: Flame Sensor

    LAME ENSOR ESETTING OCKOUT The flame sensor is a probe mounted to the burner/manifold as- Furnace lockout results when a furnace is unable to achieve igni- sembly which uses the principle of flame rectification to deter- tion after three attempts. It is characterized by a non-functioning mine the presence or absence of flame.
  • Page 31: Filters

    LAME ENSOR UALIFIED ERVICER ILTERS Under some conditions, the fuel or air supply can create a nearly WARNING invisible coating on the flame sensor. This coating acts as an insulator causing a drop in the flame sense signal. If the flame O AVOID PROPERTY DAMAGE PERSONAL INJURY OR DEATH sense signal drops too low the furnace will not sense flame and...
  • Page 32: Before Leaving An Installation

    6. Replace burner (opposite of removal). Ensure burners are EPAIR AND EPLACEMENT ARTS fully seated on burner bracket and are properly aligned. • When ordering any of the listed functional parts, be sure to Replace burner box top. Reconnect wiring. provide the furnace model, manufacturing, and serial 7.
  • Page 33: Component Id

    OMPONENT Tubular Heat Exchanger Pressure Switch Flue Pipe Connection Induced Draft Blower (Chimney Transition Top Shipped Loose) 躀 Gas Line Entrance Gas Valve Rollout Limit Junction Box Wiring Harness Grommet Gas Manifold Gas Line Entrance (Alternate) Inshot Burner Transformer Circulator Blower Blower Door Interlock Switch Integrated Control Module...
  • Page 34 THIS PAGE LEFT INTENTIONALLY BLANK...
  • Page 35: Troubleshooting Chart

    ROUBLESHOOTING HART PCBBF134 & PCBBF132 CONTROL BOARDS Fault Associated Symptoms of Cautions Possible Corrective LED Code Description(s) Abnormal Operation Causes Action & Notes •Turn power OFF •Assure 115 and 24 volt •Furnace fails to operate. NONE •No 115 volt power to •Manual disconnect switch prior to repair.
  • Page 36 ROUBLESHOOTING HART PCBBF134 & PCBBF132 CONTROL BOARDS Associated Fault Symptoms of Cautions Associated Possible Causes Corrective Action LED Code Description(s) Abnormal Operation & Notes LED Code •Check primary limit. •Insufficient conditioned air •Turn power OFF •Circulator blower runs • Primary limit Replace if necessary.
  • Page 37 ROUBLESHOOTING HART PCBBF134 & PCBBF132 CONTROL BOARDS Fault Symptoms of Cautions Associated Associated Corrective Action Possible Causes Description(s) Abnormal Operation & Notes LED Code LED Code •Improperly connected •Check and correct wiring •Furnace not operating. •Problem with •Turn power OFF igniter.
  • Page 38: Blower Performance Data

    LOWER ERFORMANCE DM80(H,S)S (CFM & Temperature Rise vs. External Static Pressure) EXTERNAL STATIC PRESSURE (Inches Water Colum n) Tons AC Motor Model at 0.5" Speed CFM RISE CFM RISE CFM RISE CFM RISE CFM RISE CFM CFM CFM HIGH 1521 ---- 1466 ----...
  • Page 39: Dd80(H,S)S

    LOWER ERFORMANCE DD80(H,S)S (CFM & Temperature Rise vs. External Static Pressure) EXTERNAL STATIC PRESSURE (Inches Water Column) Tons AC Motor Model at 0.5" Speed CFM RISE CFM RISE CFM RISE CFM RISE CFM RISE CFM CFM CFM HIGH 1353 ---- 1290 ---- 1246...
  • Page 40: Dm80He

    LOWER ERFORMANCE DM80HE (CFM & Temperature Rise vs. External Static Pressure) EXTERNAL STATIC PRESSURE (Inches Water Column) Tons AC Model Motor Speed at 0.5" CFM RISE CFM RISE CFM RISE CFM RISE CFM RISE CFM CFM CFM T1 - YELLOW ---- ---- ----...
  • Page 41: Dm80Ss / Dd80Ss Wiring Diagram

    DM80SS / DD80SS W IRING IAGRAM WARNING:DISCONNECT POWER BEFORE INTEGRATED HUMIDIFIER CONTROL MODULE SERVICING.WIRING TO UNIT MUST BE PROPERLY POLARIZED AND GROUNDED. XFMR (6) 24 VAC GND (8) HUMIDIFIER MVC (9) VALVE MV (12) DIAGNOSTIC ID BLOWER PRESSURE FUSE AUXILIARY SWITCH LIMIT CONTROLS PS (10)
  • Page 42: Dm80He Wiring Diagram, Honeywell Gas Valve

    DM80HE W ONEYWELL ALVE IRING IAGRAM WARNING: DISCONNECT POWER BEFORE HUMIDIFIER INTEGRATED CONTROL MODULE SERVICING. WIRING TO UNIT MUST BE PROPERLY POLARIZED AND GROUNDED. XFMR (6) GND (8) 24 VAC HUMIDIFIER MVC (9) VALVE MVH (12) MVL (2) ID BLOWER PRESSURE AUXILIARY SWITCH...
  • Page 43: Honeywell Gas Valve

    DM80HS / DD80HS W IRING IAGRAM ONEYWELL ALVE WARNING:DISCONNECT POWER BEFORE INTEGRATED HUMIDIFIER CONTROL MODULE SERVICING.WIRING TO UNIT MUST BE PROPERLY POLARIZED AND GROUNDED. XFMR (6) GND (8) 24 VAC MVC (9) HUMIDIFIER VALVE MVH (12) MVL (2) ID BLOWER PRESSURE AUXILIARY SWITCH...
  • Page 44 Our continuing commitment to quality products may mean a change in specifications without notice. © 2013 - 2015 5151 San Felipe St., Suite 500, Houston, TX 77056 www.daikincomfort.com...

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