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DM80VC/DC80VC
GAS FURNACE -
(Type FSP CATÉGORIE IV Direct
ou four á air soufflé non direct)
Installer: Affix all manuals adjacent to the unit.
These furnaces comply with requirements em-
bodied in the American National Standard / Na-
tional 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.
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
Safety is a matter of common sense...a matter of thinking before 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,
NOTE: Please contact your distributor or our website listed below for the applicable Specification Sheet referred to in
this manual.
IOD-2012D
9/2018
CATEGORY 1
RECOGNIZE THIS SYMBOL AS A SAFETY PRECAUTION.
This includes all safety precautions and related items.
to be able to instruct a customer in its safe use.
the precautions listed here take precedence.
Our continuing commitment to quality products may mean a change in specifications without notice.
© 2013-2016, 2017, 2018
5151 San Felipe St., Suite 500, Houston, TX 77056
O
NLY PERSONNEL THAT HAVE BEEN TRAINED TO INSTALL
(
REPAIR
HEREINAFTER
MANUAL SHOULD SERVICE THE EQUIPMENT
BE RESPONSIBLE FOR ANY INJURY OR PROPERTY DAMAGE ARISING FROM
IMPROPER SERVICE OR SERVICE PROCEDURES
ASSUME RESPONSIBILITY FOR ANY INJURY OR PROPERTY DAMAGE WHICH MAY
. I
RESULT
N ADDITION
LICENSES TO SERVICE THE EQUIPMENT SPECIFIED IN THIS MANUAL
LICENSED PERSONNEL SHOULD SERVICE THE EQUIPMENT
,
INSTALLATION
ADJUSTMENT
SPECIFIED IN THIS MANUAL
REPAIR THE EQUIPMENT SPECIFIED IN THIS MANUAL WITHOUT PROPER
TRAINING MAY RESULT IN PRODUCT DAMAGE
.
INJURY OR DEATH
FOR CALIFORNIA CONSUMERS
www.daikinac.com
INSTALLATION INSTRUCTIONS
, "
")
SERVICE
THE EQUIPMENT SPECIFIED IN THIS
. T
HE MANUFACTURER WILL NOT
. I
F YOU SERVICE THIS UNIT
,
IN JURISDICTIONS THAT REQUIRE ONE OR MORE
,
SERVICING OR REPAIR OF THE EQUIPMENT
,
OR ATTEMPTING TO INSTALL
,
PROPERTY DAMAGE
PROP 65 WARNING
Cancer and Reproductive Harm
www.P65Warnings.ca.gov
,
,
ADJUST
SERVICE OR
,
YOU
,
ONLY
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PERSONAL
-
0140M00513-A
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Table of Contents
Troubleshooting
Related Manuals for Daikin DM80VC
Summary of Contents for Daikin DM80VC
- Page 1 INSTALLATION INSTRUCTIONS DM80VC/DC80VC GAS FURNACE - CATEGORY 1 NLY PERSONNEL THAT HAVE BEEN TRAINED TO INSTALL ADJUST SERVICE OR , “ ”) REPAIR HEREINAFTER SERVICE THE EQUIPMENT SPECIFIED IN THIS (Type FSP CATÉGORIE IV Direct MANUAL SHOULD SERVICE THE EQUIPMENT...
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Page 2: Table Of Contents
Table of Contents ................................4 AFETY ONSIDERATIONS ................................ 6 HIPPING NSPECTION ........................... 6 DDITIONAL AFETY ONSIDERATIONS (ESD) P ........................7 LECTROSTATIC ISCHARGE RECAUTIONS ................................7 NSTALLER ................................7 RODUCT ESCRIPTION ..................................7 EATURES ................................7 RODUCT PPLICATION ........................... 10 OCATION EQUIREMENTS AND ONSIDERATIONS ............................ - Page 3 Table of Contents ................................26 URNACE TARTUP ..............................27 URNACE HUTDOWN ..........................27 UPPLY RESSURE EASUREMENT ....................28 ANIFOLD RESSURE EASUREMENT AND DJUSTMENT ) ......................30 NPUT EASUREMENT ATURAL ................................. 30 EMPERATURE ............................30 IRCULATOR LOWER PEEDS ............................ 32 LOWER ELAY IMINGS ™...
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Page 4: Safety Considerations
AFETY ONSIDERATIONS WARNING FIRE OR EXPLOSION HAZARD Adhere to the following warnings and cautions when installing, adjusting, altering, servicing, or operating the furnace. To en- Failure to follow the safety warnings exactly could result sure proper installation and operation, thoroughly read this in serious injury, death or property damage. - Page 5 WARNING EATING UNIT SHOULD NOT BE UTILIZED WITHOUT REASONABLE ROUTINE INSPECTION MAINTENANCE AND SUPERVISION F THE BUILDING IN WHICH ANY SUCH DEVICE IS LOCATED WILL BE VACANT CARE SHOULD BE TAKEN THAT SUCH DEVICE IS ROUTINELY INSPECTED MAINTAINED AND MONITORED IN THE EVENT THAT THE BUILDING MAYBE EXPOSED TO FREEZING TEMPERATURES AND WILL BE VACANT ALL WATER...
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Page 6: Shipping Inspection
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 7: Electrostatic Discharge
This product may also be installed with the ComfortNet ther- (ESD) P LECTROSTATIC ISCHARGE RECAUTIONS mostat and a non-ComfortNet compatible single stage air con- NOTE: Discharge body’s static electricity before touching unit. ditioning unit. However, this reduces the benefits of the An electrostatic discharge can adversely affect electrical com- ComfortNet system as the enhancements will only apply to the ponents. -
Page 8: Location Requirements Andc
Your unit model type determines which installation procedures must be used. For DM80VC models, you must follow instruc- WARNING tions for Horizontal Left, Horizontal Right or Upflow installa- tions only. These furnaces are not approved for Downflow in-... - Page 9 • Ensure adequate combustion air is available for the • Counterflow installation over a noncombustible floor. furnace. Improper or insufficient combustion air can Before setting the furnace over the plenum opening, expose building occupants to gas combustion products ensure the surface around the opening is smooth and that could include carbon monoxide.
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Page 10: Clearances And Accessibility
NSTALLATION OSITIONS too large to properly vent the remaining attached appliances. DM80VC model furnaces may be installed vertically (upflow) or HERMOSTAT OCATION horizontally with left or right side down. DC80VC model fur-... - Page 11 WARNING AVERTISSEMENT CARBON MONOXIDE POISONING HAZARD RISQUE D'INTOXICATION AU MONOXYDE DE CARBONE Failure to follow the steps outlined below for each Si les étapes décrites ci-dessous ne sont pas suivies pour appliance connected to the venting system being placed chacun des appareils raccordés au système de ventilation into operation could result in carbon monoxide poisoning au moment de sa mise en marche, cela peut entraîner une or death.
- Page 12 (“Top” is as viewed for an upflow discharging from the top of the furnace. (“Top” as viewed for a installation.) The induced draft blower on DM80VC models can counterflow installation.) be rotated 90 degrees for Category I venting. For furnaces...
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Page 13: Xterior Asonry Himneys
This checklist is only a summary. For detailed information on XTERIOR ASONRY HIMNEYS each of the procedures mentioned, see the paragraph refer- enced with each item. ATEGORY URNACES Proper Chimney An exterior masonry chimney is defined as a “Masonry” chim- Termination? ney exposed to the outdoors on one or more sides below the (Check 1) -
Page 14: Check 2 - Any Solid Or Liquid
If the chimney does not meet these termination requirements, Appliances which burn propane (sometimes referred to as LP but all other requirements in the checklist can be met, it may (liquefied petroleum)) gas are considered gas-fired appliances. be possible for a mason to extend the chimney. If this will not 3 - C HECK HIMNEY... -
Page 15: Check 6 - Dilution Air
Next, use a flashlight and small mirror to sight up the liner. B Gas Code NFPA 54/ANSI Z223.1 - latest edition and in the vent must be supported so as to not come into direct contact National Standard of Canada, CAN/CSA B149.1 and CAN/CSA with the chimney walls or tile liner. -
Page 16: Rebuild The Crown
3 - R • The previous liner was properly sized and installed, EBUILD THE ROWN and suffered from condensation damage. If the chimney crown is damaged, a qualified mason must re- • It is required by your local building codes. pair it in accordance with nationally recognized building codes or standards. -
Page 17: Wiring Harness
IRING ARNESS WARNING The wiring harness is an integral part of this furnace. Field O PREVENT PERSONAL INJURY OR DEATH DUE TO ELECTRIC SHOCK alteration to comply with electrical codes should not be re- DISCONNECT ELECTRICAL POWER BEFORE INSTALLING OR SERVICING THIS quired. -
Page 18: Volt Thermostat Wiring
24 V HERMOSTAT IRING IMPORTANT NOTE Furnace Integrated IRE ROUTING MUST NOT INTERFERE WITH CIRCULATOR BLOWER Control Module OPERATION FILTER REMOVAL OR ROUTINE MAINTENANCE REMOVABLE PLUG CONNECTOR IS PROVIDED WITH THE CONTROL TO Dehumidistat MAKE THERMOSTAT WIRE CONNECTIONS HIS PLUG MAY BE REMOVED [Optional] Remote Condensing Unit... -
Page 19: Volt Dehumidistat Wiring
To use a single-stage thermostat, turn off power to the furnace, OSSIL PPLICATIONS move the thermostat selection DIP switch to the OFF position. This furnace can be used in conjunction with a heat pump in a Set the desired transition time by setting the transition delay fossil fuel application. -
Page 20: Volt Humidifier
NEUTRAL 24 V UMIDIFIER A 24 volt humidifier can be powered by feeding one of the HUM terminals with a field installed wire from the R terminal or by connecting to the NO side of the low fire pressure switch. UXILIARY LARM WITCH... -
Page 21: High Altitude Derate
NOTE: Do not remove the gas valve inlet plug before the gas If converting to LP gas, it is recommended that an LPLP0* kit line is installed. Replace if water or debris has been introduced. also be installed. The use of this kit will prevent the furnace from firing when the LP gas supply pressure is too low to sup- port proper combustion. -
Page 22: Upflow Installations
• Use two pipe wrenches when making connection to When the gas piping enters through the left side of the furnace, the gas valve to keep it from turning. The orientation the installer must supply the following fittings (starting from the of the gas valve on the manifold must be maintained gas valve): as shipped from the factory. -
Page 23: Ropane As Anks And Iping
ROPANE IPING HARTS ROPANE ANKS AND IPING Sizing Between Firs t and Second Stage R egulator* Maxim um Propane Capacities lis ted are bas e d on 2 ps ig pres s ure drop at 10 ps ig s etting. WARNING C apacities in 1,000 BTU /hou r. -
Page 24: Checking Duct Static
NOTE: Both readings may be taken simultaneously and read element. With a parallel flow arrangement, the dampers or other directly on the manometer if so desired. If an air conditioner means used to control the flow of air must be adequate to coil or Electronic Air Cleaner is used in conjunction with the prevent chilled air from entering the furnace and, if manually furnace, the readings must also include these components, as... -
Page 25: Circulation Air Filters
Consider installing an air cleaner with deep-pleated media filter IRCULATION ILTERS at the time of furnace installation. A deep-pleated filter with a One of the most common causes of a problem in a forced air MERV rating of 8 (minimum) will often provide better filtration to heating system is a blocked or dirty filter. -
Page 26: Start - Up Procedure And Adjustment
Air cleaner installation Maximum Filter (Media) Air Cleaner location Heating Airflow Dimensions Part Number Family Side or bottom return 1200 CFM 16 in X 20 in x 5¼" AM11-1620-5 Side or bottom return 1600 CFM 16 in X 25 in x 5¼" AM11-1625-5 AM11-5 Side or bottom return... -
Page 27: Furnace Shutdown
11. Adjust the thermostat to a setting above room 7. After completion of the 5-minute timer or test mode termi- temperature. nation, whichever is earlier, the system will return to normal operation, either continuing an existing heat demand or going 12. -
Page 28: Gas Manifold Pressurem
High Fire If supply pressure differs from table, make the necessary ad- Regulator Regulator justments to pressure regulator, gas piping size, etc., and/or Adjust Vent consult with local gas utility. 5. Turn OFF gas to furnace at the manual shutoff valve and disconnect manometer. - Page 29 7. Measure the gas manifold pressure with burners firing. Using a leak detection solution or soap suds, check for leaks Adjust manifold pressure using the Manifold Gas at outlet pressure tap plug (Honeywell valve) or screw (White- Pressure table shown below. Rodgers valve).
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Page 30: Gas Input Rate Measurement
4. Adjust temperature rise by adjusting the circulator blower NPUT EASUREMENT ATURAL speed. Increase blower speed to reduce temperature rise. The gas input rate to the furnace must never be greater than Decrease blower speed to increase temperature rise. that specified on the unit rating plate. To measure natural gas Refer to Startup Procedure and Adjustment -Circulator input using the gas meter, use the following procedure. - Page 31 profile. Verify CFM by noting the number displayed on 1. Determine the tonnage of the cooling system installed the dual 7-segment LED display. with the furnace. If the cooling capacity is in BTU/hr divide it by 12,000 to convert capacity to TONs. Switch Bank: S4 1.
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Page 32: Blower Heat Off Delay Timings
In general lower heating speeds will: reduce electrical consump- Switch Bank: S3 tion, lower operating sound levels of the blower, and increase DIP Switch No. the outlet air temperature delivered to the home. The speeds Adjust Taps available allow the blower performance to be optimized for the +5%* particular homeowner’s needs. -
Page 33: Airflow Condiderations
outdoor unit may send commands to or request information conditioner or heat pump installation manual for the airflow from the indoor unit. This two-way digital communications be- delivered during cooling or heat pump heating. tween the thermostat and subsystems (indoor/outdoor unit) and In continuous fan mode, the CTK0* thermostat provides the between subsystems is the key to unlocking the benefits and airflow demand. -
Page 34: Wo Ire Utdoor Our
UTDOOR NDOOR IRING NOTE: When using a non-communicating condenser, cooling CFM will need to be set up in the communicating thermostat. Two wires can be utilized between the indoor and outdoor units. Go to the ComfortNet™ menu > communicating equipment > For this wiring scheme, only the data lines, 1 and 2, are needed furnace >... - Page 35 DIAGNOSTICS Submenu Item Indication/User Modifiable Options Comments Fault 1 (FAULT #1) Most recent furnace fault For dis play only Fault 2 (FAULT #2) Next m ost recent furnace fault For dis play only Fault 3 (FAULT #3) Next m ost recent furnace fault For dis play only Fault 4 (FAULT #4) Next m ost recent furnace fault...
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Page 36: Network Troubleshooting
STATUS Subm e nu Ite m Indica tion (for Displa y Only; not Use r Modifia ble ) Mode (MODE) Displays the current furnace operating mode CFM (CFM) Displays the airflow for the current operating mode NON-COMM (APPLIES ONLY TO A COMMUNICATING COMPATIBLE FURNACE MATCHED WITH A NON-COMMUNICATING COMPATIBLE SINGLE STAGE AIR CONDITIONER) Submenu Item User Modifiable Options... - Page 37 Description Possible Cause Corrective Action Comments Normal condition None None None 1 Flash Communications Communications •Depress Learn Button •Depress once quickly for Failure Failure a power-up reset •Verify that bus BIAS and TERM dipswitches are in •Depress and hold for 2 the ON position.
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Page 38: Cooling Mode
• R and W1 (or R and W1/W2) thermostat contacts open, completing the call for heat. The normal operational sequence in fan only mode is as fol- • Gas valve closes, extinguishing flame. lows: • • R and G thermostat contacts close, initiating a call for Induced draft blower is de-energized following a fifteen fan. -
Page 39: Integrated Control Module
2. Firmly touch a clean, unpainted, metal surface of the NTEGRATED ONTROL ODULE furnace away from the control. Any tools held in a The integrated control module is an electronic device which, if person’s hand during grounding will be discharged. a potential safety concern is detected, will take the necessary 3. -
Page 40: Resetting From Lockout
ESETTING OCKOUT ILTERS Furnace lockout results when a furnace is unable to achieve CAUTION ignition after three attempts during a single call for heat. It is O ENSURE PROPER UNIT PERFORMANCE ADHERE TO THE FILTER SIZES characterized by a non-functioning furnace and a E 0 code GIVEN IN THE RECOMMENDED INIMUM ILTER... -
Page 41: Nduced Raft And Irculator
NDUCED RAFT AND IRCULATOR LOWERS The bearings in the induced draft blower and circulator blower motors are permanently lubricated by the manufacturer. No fur- ther lubrication is required. Check motor windings for accumu- lation of dust which may cause overheating. Clean as neces- sary. - Page 42 ROUBLESHOOTING HART ComfortNet™ Symptoms of Abnormal Diagnostic/ Thermostat Only Operation (Legacy & Status LED Fault Description Possible Causes Corrective Actions Notes & Cautions ComfortNet™ Thermostat) Codes Message Code • Furnace fails to operate None • No 115 power to INTERNAL •...
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Page 43: Troubleshooting Chart
ROUBLESHOOTING HART Symptoms of Abnormal ComfortNet™ Diagnostic/ Operation (Legacy Thermostat Only Status LED Fault Description Possible Causes Corrective Actions Notes & Cautions & ComfortNet™ Codes Thermostat) Message Code • Induced draft blower • Low stage PS1 OPEN • Pressure switch hose •... - Page 44 ROUBLESHOOTING HART ComfortNet™ Symptoms of Abnormal Diagnostic/ Operation (Legacy Thermostat Only Status LED Fault Description Possible Causes Corrective Actions Notes & Cautions & ComfortNet™ Codes Message Code Thermostat) • Furnace fails to operate. • Problem with IGNITER • Improperly connected •...
- Page 45 ROUBLESHOOTING HART ComfortNet™ Symptoms of Abnormal Diagnostic/ Thermostat Only Operation (Legacy Status LED Fault Description Possible Causes Corrective Actions Notes & Cautions & ComfortNet™ Codes Message Code Thermostat) • Operation different than • Invalid memory INVALID MC • Shared data set on •...
- Page 46 ROUBLESHOOTING HART ComfortNet™ Symptoms of Abnormal Diagnostic/ Thermostat Only Operation (Legacy Status LED Fault Description Possible Causes Corrective Actions Notes & Cautions & ComfortNet™ Codes Message Code Thermostat) • Circulator blower MOTOR • Turn power OFF prior • Furnace fails to operate. motor senses TRIPS to repair...
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Page 47: Status Codes
TATUS ODES INTERNAL CONTROL FAULT/NO POWER NORMAL OPERATION LOCKOUT DUE TO EXCESSIVE RETRIES LOW STAGE PRESSURE SWITCH STUCK CLOSED AT START OF HEATING CYCLE LOW STAGE PRESSURE SWITCH STUCK OPEN OPEN HIGH LIMIT SWITCH FLAME DETECTED WHEN NO FLAME SHOULD BE PRESENT OPEN FUSE LOW FLAME SIGNAL IGNITER FAULT OR IMPROPER GROUNDING... -
Page 48: Air Flow Data
TA P Low High High TA P Low High High M O DE L M O DE L S tage S tage S tage S tage S tage S tage S tage S tage Cool Cool Heat Heat Cool Cool Heat Heat 1107... -
Page 49: Dip Switches
WITCHES Dip Switch Switch Bank Purpose Function Heating Off Delay 2 Stage Stat Thermostat 1 Stg Stat 5 min delay Setup 1 Stg Stat auto delay Cooling Airflow Add 5% Minus 5% Trim Add 10% Minus 10% Ramping Profile Heating Airflow Disabled Dehum Enabled... -
Page 50: Wiring Diagram Dm 80 Vc / Dc 80 Vc
IRING IAGRAM DM 115 VAC/1 /60 HZ Ø High High High High POWER SUPPLY WITH MODEL MODEL Stage Stage Stage Stage Stage Stage Stage Stage OVERCURRENT ID BLOWER TWO-STAGE PRESSURE Cool Cool Heat Heat Cool Cool Heat Heat PROTECTION DEVICE 1107 1012 SWITCH ASSEMBLY... - Page 51 THIS PAGE LEFT INTENTIONALLY BLANK...
- Page 52 CUSTOMER FEEDBACK Daikin is very interested in all product comments. Please fill out the feedback form on the following link: https://daikincomfort.com/contact-us You can also scan the QR code on the right to be directed to the feedback page. PRODUCT REGISTRATION Thank you for your recent purchase.