Daikin DBG Series Installation Instructions Manual
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Daikin DBG Series Installation Instructions Manual

Packaged gas / electric unit 3-5 ton belt drive
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P
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ackaged
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ight
ommercial
i
i
nstallation
nstrUctions
This forced air central unit design complies with
requirements embodied in The American National Standard
/ National Standard of Canada ANSI Z21.47•CSA-2.3 Gas-
fired central furnaces.
©2020
IOD-1044
01/2020
/ e
U
lectric
dBg m
odels
Our continuing commitment to quality products may mean a change in specifications without notice.
19001 Kermier Rd., Waller, TX 77484
3-5 t
B
nit
on
Only personnel that have been trained to install, adjust, service or
repair(hereinafter, "service") the equipment specified in this manual
should service the equipment. The manufacturer will not be responsible
for any injury or property damage arising from improper service or service
procedures. If you service this unit, you assume responsibility for any
injury or property damage which may result. In addition, in jurisdictions
that require one or more licenses to service the equipment specified in
this manual, only licensed personnel should service the equipment.
Improper installation, adjustment, servicing or repair of the equipment
specified in this manual, or attempting to install, adjust, service or repair
the equipment specified in this manual without proper training may result
in product damage, property damage, personal injury or death.
www.daikincomfort.com
INSTALLATION INSTRUCTIONS
d
elt
rive
WARNING
PROP 65 WARNING
FOR CALIFORNIA CONSUMERS
WARNING
Cancer and Reproductive Harm -
www.P65Warnings.ca.gov
0140M00517-A

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Summary of Contents for Daikin DBG Series

  • Page 1 INSTALLATION INSTRUCTIONS 3-5 t ackaged lectric rive dBg m ight ommercial odels nstallation nstrUctions WARNING Only personnel that have been trained to install, adjust, service or repair(hereinafter, “service”) the equipment specified in this manual should service the equipment. The manufacturer will not be responsible for any injury or property damage arising from improper service or service procedures.

  • Page 2: Table Of Contents

    ........8 eights and enter oF ravitY ............8 EQUIPMENT SUPPORT lectrical wiring ............10 Daikin North America LLC UPPlY iPing ...........12 19001 Kermier Road ProPane installations .........13 Waller, Texas 77484 ircUlating ir and ilters ........14...
  • Page 3 WARNING WARNING high voltage! o Prevent the risk oF ProPertY damage isconnect all Power BeFore Personal injUrY or death do not store servicing or installing this Unit comBUstiBle materials or Use gasoline or other UltiPle Power soUrces maY Be FlammaBle liqUids or vaPors in the vicinitY oF Present ailUre to do so maY caUse this aPPliance...

  • Page 4: Eneral Information

    Specification sheets can be found at unit. The model number shown on the unit’s identification www.daikinac.com for Daikin brand products. Within the plate identifies the various components of the unit such as website, please select the commercial products menu refrigeration tonnage, heating input and voltage.
  • Page 5 • Allow minimum clearances from the enclosure for fire protection, proper operation, and service access WARNING (see unit clearances). These clearances must be permanently maintained. o Prevent PossiBle eqUiPment damage ProPertY • The combustion air inlet and flue outlet on the unit damage Personal injUrY or death the Following...

  • Page 6: Learances

    • Do not skid or slide on any surface as this may See the manual shipped with the roof curb for assembly damage unit base. The unit must be stored on a flat, and installation instructions. level surface. Protect the condenser coil because it is easily damaged.
  • Page 7 ROOF CURB POST-INSTALLATION CHECKS RIGGING DETAILS After installation, check the top of the curb, duct connection frame and duct flanges to make sure gasket has been WARNING applied properly. Gasket should be firmly applied to the top of the curb perimeter, duct flanges and any exposed duct connection frame.
  • Page 8 Refer to the Roof Curb Installation Instructions for proper CAUTION curb installation. Curbing must be installed in compliance with the National Roofing Contractors Association Manual. o Prevent severe damage to the Bottom oF the Unit do not Fork liFt Unit aFter wood strUts have Been removed Bring condenser end of unit into alignment with the curb first.
  • Page 9 For unit protection, use a fuse or HACR circuit breaker that • The unit must be electrically grounded in accordance is in excess of the circuit ampacity, but less than or equal with local codes or, in the absence of local codes, to the maximum overcurrent protection device.
  • Page 10 4. Route thermostat wires from sub-base terminals nits installed on Main power and low voltage wiring may enter the unit to the unit. Control wiring should enter through the through the condenser end of unit or through the roof curb. condenser panel opening or through curb indicated in Install conduit connectors at the desired entrance locations.

  • Page 11: Propane

    4. Install a drip leg to trap dirt and moisture before it can enter the gas valve. The drip leg must be a minimum INLET GAS PRESSURE of three inches long. NATURAL Min. 5.0" W.C., Max. 10.0" W.C. 5. Use two pipe wrenches when making connection to PROPANE Min.
  • Page 12 imPortant note: P iPing hecks roPane gas conversion kits mUst Be installed to convert Units to ProPane gas CAUTION x screens mUst Be removed BeFore converting lP. r emove BUrner assemBlY and PUll screens From each BUrner tUBe hen all the o Prevent ProPertY damage or Personal injUrY screens are oUt reassemBle the BUrner assemBlY...
  • Page 13 A manual gas shut off valve must be field installed external to the roof top unit. In addition, a drip leg must be installed WARNING near the inlet connection. A ground joint union connection is required between the external shut off valve and the unit his Unit and its individUal shUtoFF valve mUst connection to the gas valve to permit removal of the burner disconnected...
  • Page 14 CONDENSATE DRAIN CONNECTION tartUP nstrUctions eneral ondensate rain onnection CAUTION A 3/4” female NPT drain connection is supplied on the end of the unit and bottom of the drain pan for condensate piping. An external trap must be installed for proper o Prevent ProPertY damage or Personal injUrY condensate drainage.
  • Page 15 Utilization Voltage - The voltage of the line terminals ontractor esPonsiBilitY The installing contractor must be certain that: of the equipment at which the equipment must give fully • All supply and return air ductwork is in place, properly satisfactory performance. Once it is established that supply sealed, and corresponds with installation instructions.
  • Page 16 motor and bearing failure will occur. Check you belt 5. Ensure all keys are in place and the set screws tight drive for adequate “run-in” belt tension by measuring the before starting drive. Recheck set screws and belt force required to deflect the belt at the midpoint of the tension after 24 hours service.
  • Page 17 & r IGNITION ELECTRODE UPPlY ressUres egUlator djUstments FLAME SENSOR WARNING hoUld overheating occUr or the gas sUPPlY Fail to shUt oFF tUrn oFF the manUal gas shUtoFF valve external to the Unit BeFore tUrning oFF the electrical sUPPlY WARNING Flame sensor and ignition electrode location o avoid ProPertY damage Personal injUrY or...

  • Page 18: Propane

    dial, use the seconds as is. This gives the seconds per cubic foot of gas being delivered to the unit. INLET GAS PRESSURE 3. INPUT=GAS HTG VALUE x 3600 / SEC. PER CUBIC FOOT NATURAL Mi n. 5.0" W.C., Ma x. 10.0" W.C. Example: Natural gas with a heating value of 1000 BTU PROPANE Mi n.

  • Page 19: Ystem

    NORMAL SEQUENCE OF OPERATION To remove manometer from gas valve: 1. Remove manometer hose from outlet pressure boss. eating 2. Turn outlet pressure tap screw in to seal pressure port note: o (clockwise, 7 in-lb. minimum). n Units with the controls oPtion ddc c 3.

  • Page 20: Checks

    11. The furnace has three high temperature limit controls, To confirm charge levels or, if a leak occurs and charge which can shut down the burner. They do not shut needs to be added to the system, it is recommended to down the venter motor.
  • Page 21 MAINTENANCE 6. Check that the compressor is operating correctly. The scroll compressors in these units MUST operate WARNING in the proper rotation. To ensure the compressor is operating in the correct direction, check the compressor discharge line pressure or temperature electrical shock, Fire or exPlosion haZard after the compressor is started.
  • Page 22 5. Check power and control voltages. note: a Fter cleaning the microamP signal shoUld 6. Check running amperage. 4 - 6 Be staBle and in the range oF microamPs 7. Check operating temperatures and pressures. 8. Check and adjust temperature and pressure controls. assages UaliFied ervicer...

  • Page 23: C Hecks

    bnormal peration eating odes (1 Flash code) xternal ockoUt An external lockout occurs if the integrated ignition control determines that a measurable combustion cannot be established within three (3) consecutive ignition attempts. If flame is not established within the seven (7) second trial for ignition, the gas valve is deenergized, 15 second inter- purge cycle is completed, and ignition is reattempted.
  • Page 24 imPortant: i times to indicate the compressor contactor output is being F YoU have to FreqUentlY reset YoUr gas delayed. electric Package Unit it means that a ProBlem exists that shoUld Be corrected ontact a qUaliFied servicer For note: s FUrther inFormation ome electronic thermostats also have a BUilt in comPressor short cYcle timer that maY Be longer than...
  • Page 25 APPENDIX A BLOWER PERFORMANCE TABLES BELT DRIVE STANDARD DOWN SHOT DBG036*B STANDARD STATIC DOWNSHOT TURNS OPEN ESP, In H 1330 0.29 1170 0.21 1010 0.15 0.10 1211 0.26 1038 0.19 0.13 1278 0.33 1080 0.24 0.17 1341 0.40 1151 0.30 0.21 1218 0.37 1009...
  • Page 26 APPENDIX A BLOWER PERFORMANCE TABLES BELT DRIVE HIGH STATIC DOWN SHOT DBG036*C HIGH STATIC DOWNSHOT TURNS OPEN ESP, In H 1314 0.43 1165 0.39 1235 0.43 0.32 1345 1050 0.53 1072 0.39 1193 1050 0.48 0.35 1291 1105 0.58 1019 1050 0.44 1129 1105 0.53...
  • Page 27 APPENDIX A BLOWER PERFORMANCE TABLES BELT DRIVE STANDARD HORIZONTAL DBG036*B STANDARD STATIC HORIZONTAL TURNS OPEN ESP, In H 1205 0.19 1066 0.14 1231 0.23 1067 0.17 0.12 1270 0.28 1093 0.20 0.14 1336 0.34 1134 0.25 0.18 1204 0.31 0.22 1271 0.38 1053...
  • Page 28 APPENDIX A BLOWER PERFORMANCE TABLES BELT DRIVE HIGH STATIC HORIZONTAL DBG036*C HIGH STATIC HORIZONTAL TURNS OPEN ESP, In H 1285 0.42 1346 0.46 1134 0.35 1203 0.42 0.31 1310 1050 0.51 1034 0.38 1156 1050 0.46 1253 1105 0.55 1050 0.41 1083 1105 0.50...

  • Page 29: D Ata

    APPENDIX B ELECTRICAL DATA lectrical Optional Powered Optional Compressor Outdoor Fan Motor Indoor Fan Motor Optional Electric Heat Power Supply Model Number Electrical Rating Convienience Outlet Power Exhaust QTY RLA LRA QTY Type HP FLA Part # 17.4/17.4 25/25 Belt Drive 7.2/6.5 24.6/23.9 35/30 DBG0363B...
  • Page 30 APPENDIX B ELECTRICAL DATA lectrical Optional Powered Optional Compressor Outdoor Fan Motor Indoor Fan Motor Optional Electric Heat Power Supply Model Number Electrical Rating Convienience Outlet Power Exhaust QTY RLA LRA QTY Type HP FLA Part # 10.7 Belt Drive DBG0484C 460/3/60 1 6.1 41...
  • Page 31 APPENDIX C UNIT DIMENSIONS 47-5/8" 73-3/8" "A" 74" 48-5/16" model siZe dim "a" 3,4, & 5 ton 39-7/8" 19-1/2 RETURN 5-5/16 11” X 25” EMBOSS DRAIN 5-7/8 THRU THRU CURB BASE LOCATION SUPPLY UTILITIES 12” X 17” 7-3/8 27-3/4 RETURN 4-1/2 11"...
  • Page 32 APPENDIX D MIN-MAX AIRFLOW RECOMMENDED MIN-MAX AIRFLOW RANGE HEATING COOLING HIGH FIRE RATE MAXIMUM UNIT MINIMUM MINIMUM BTU/HR SCFM SCFM SCFM 45,000 DBG036 70,000 1350 90,000 70,000 1050 DBG048 90,000 1125 1200 1800 115,000 1225 90,000 1225 DBG060 115,000 1425 1500 2250 140,000...
  • Page 33 HIGH VOLTAGE! DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH. Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
  • Page 36 CUSTOMER FEEDBACK We are very interested in all product comments. Please fill out the feedback form on one of the following links: Daikin Products: (https://daikincomfort.com/contact-us) You can also scan the QR code on the right for the product brand you purchased DAIKIN to be directed to the feedback page.

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