Daikin DBC Series Installation Instructions Manual
Light commercial packaged heating and cooling unit 7.5t to 12.5t
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DBC/DBH Series Light Commercial Packaged Heating and
Cooling Unit 7.5T to 12.5T
Installation Instructions
©2020
IOD-1049B
09/2020
Our continuing commitment to quality products may mean a change in specifications without notice.
19001 Kermier Rd., Waller, TX 77484
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
WARNING
PROP 65 WARNING
FOR CALIFORNIA CONSUMERS
WARNING
Cancer and Reproductive Harm -
www.P65Warnings.ca.gov
0140M00517-A
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Table of Contents
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Summary of Contents for Daikin DBC Series
- Page 1 INSTALLATION INSTRUCTIONS DBC/DBH Series Light Commercial Packaged Heating and Cooling Unit 7.5T to 12.5T Installation Instructions 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.
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Page 2: Table Of Contents
This unit must not be used as a “construction EQUIPMENT SUPPORT heater” during the finishing phases of Daikin North America LLC construction on a new structure. This type of use may result in premature failure of the unit 19001 Kermier Road... -
Page 3: General Information
The model number shown on the unit’s identification light commercial models. Specification sheets can be found plate identifies the various components of the unit such as at www.daikinac.com for Daikin brand products. Within refrigeration tonnage, heating input and voltage. the website, please select the residential or commercial... - Page 4 • To avoid possible personal injury, a safe, flat surface for service personnel should be provided. WARNING • As indicated on the unit data plate, a minimum clearance of 36" to any combustible material is To prevent possible equipment damage, property required on the furnace access side of the unit.
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Page 5: Clearances
• Sufficient structural support must be determined prior made to deflect the warm discharge air out from the to locating and mounting the curb and package unit. overhang. The unit should be installed remote from all • Ductwork must be constructed using industry building exhausts to inhibit ingestion of exhaust air into the guidelines. -
Page 6: Rigging Details
• Two spreader bars must span over the unit to prevent damage to the cabinet by the lift cables. Spreader bars must be of sufficient length so that cables do Remove Covers 2" not come in contact with the unit during transport. Remove wood struts mounted beneath unit base 14"... -
Page 7: Weights And Center Of Gravity
Refer to the Roof Curb Installation Instructions for proper curb installation. Curbing must be installed in compliance DBC Weights (lbs) Data with the National Roofing Contractors Association Manual. Corner Weight- A Corner Weight- B Corner Weight- C Corner Weight- D Unit Shipping Weight 1095 1106... -
Page 8: Electrical Wiring
ELECTRICAL WIRING The main power supply shall be three-phase, three wire. The unit is factory wired for the voltage shown on the unit’s WARNING data plate. NOTE: If supply voltage is 208V, lead on primary of HIGH VOLTAGE! Disconnect all power before transformer(s) must be moved from the 230V to servicing or installing this unit. - Page 9 Units installed on Roof Tops Main power and low voltage wiring may enter the unit through the condenser end of unit or through the roof curb. Install conduit connectors at the desired entrance locations. External connectors must be weatherproof. All holes in the unit base must be sealed (including those around conduit nuts) to prevent water leakage into building.
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Page 10: Circulating Air And Filters
4. Route thermostat wires from sub-base terminals to the unit. Control wiring should enter through the condenser panel opening or through curb indicated in Base Rail “Electrical Entrance” figure. Connect thermostat and any accessory wiring to low voltage terminal block Open Vent 2”... - Page 11 Pre-Startup Instructions - General • All electric power, all gas, hot water or steam line connections, and the condensate drain installation have been made to each unit on the job. These CAUTION main supply lines must be functional and capable of operating all units simultaneously.
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Page 12: Air Flow Adjustments
Evaporator Fan Rotation Check Three Phase Models Only Check that fan rotates clockwise when viewed from the drive side of unit and in accordance with rotation arrow shown on blower housing. If it does not, reverse any two incoming power cables at Single Point Power Block. In this case, repeat bearing check. -
Page 13: Motor Sheave Adjustments
*Apply force to the center of the span. t = Span length, inches C = Center distance, inches D = Larger sheave diameter, inches d = Smaller sheave diameter, inches h = Deflection height, inches DRIVE BELT TENSION ADJUSTMENT TYPE SHEAVE DEFLECTION FORCE (lbs) DEFLECTION... - Page 14 heated air. Air Conditioning Start-Up Procedure and 4. If the outdoor ambient is above 80°F, the unit may Checklist trip on its high pressure cut out when on heating. The Begin with power turned off at all disconnects. compressor should stop. The heating cycle must be thoroughly checked, so postpone the test to another 1.
- Page 15 proper operation. mode. 6. Compressor contractor closes its contacts L1, L2 The same start-up procedure should be followed as in and L3 to T1, T2 and T3 to provide power to the Start-Up Procedure and Checklist with the understanding compressor motor COMP 1; COMP 2, if conditions that in Step 6 the indoor blower will run at low speed and in are correct.
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Page 16: Heat Pump Operation
HEAT PUMP OPERATION Cooling Cycle When the heat pump is in the cooling cycle, it operates exactly as a Summer Air Conditioner unit. In this mode, all the charts and data for service that apply to summer air conditioning apply to the heat pump. Most apply on the heating cycle except that “condenser”... -
Page 17: Maintenance
During operation the power to the circuit board is CAUTION controlled by a temperature sensor, which is clamped to a feeder tube entering the outdoor coil. Defrost timing Sheet metal parts, screws, clips and similar periods of 30,60 and 90 minutes may be selected by items inherently have sharp edges, and it is necessary that the installer and service connecting the circuit board jumper to 30, 60 and 90... -
Page 18: Troubleshooting
Cabinet Finish Maintenance Poor “Terminating” Sensor contact Use a fine grade automotive wax on the cabinet finish to The unit’s defrost terminating sensor must make good maintain the finish’s original high luster. This is especially thermal contact with the outdoor coil tubing. Poor contact important in installations with extended periods of direct may not terminate the unit’s defrost cycle quickly enough sunlight. -
Page 19: Appendix A Blower Performance Data
APPENDIX A BLOWER PERFORMANCE DATA 7.5 TON AC DBC090*V STANDARD STATIC HORIZONTAL TURNS OPEN ESP, In H 3636 1.11 3403 0.95 3165 0.74 3532 1.06 3193 0.87 2907 0.66 3654 1.17 3373 0.99 2983 0.78 2650 0.58 3748 1.24 3477 1.09 3161 0.90... - Page 20 APPENDIX A BLOWER PERFORMANCE DATA 8.5 TON AC DBC102*V STANDARD STATIC HORIZONTAL TURNS OPEN ESP, In H 4111 1.42 3866 1.27 3636 1.11 3403 0.95 3165 0.74 4022 1.38 3784 1.23 3532 1.06 3193 0.87 2907 0.66 4176 1.66 3901 1.32 3654 1.17...
- Page 21 APPENDIX A BLOWER PERFORMANCE DATA 10 TON AC DBC120*V STANDARD STATIC HORIZONTAL TURNS OPEN ESP, In H 4575 1.72 4308 1.54 4035 1.20 3740 1.05 4454 1.65 4167 1.46 3860 1.13 3553 0.98 4300 1.57 3987 1.37 3645 1.04 3301 0.88 4114 1.47...
- Page 22 APPENDIX A BLOWER PERFORMANCE DATA 12.5 TON AC DBC150*V STANDARD STATIC HORIZONTAL TURNS OPEN ESP, In H 5229 2.69 4949 2.46 4665 1.76 4384 1.57 4080 1.21 5101 2.60 4809 2.36 4515 1.67 4218 1.48 3896 1.14 5254 3.03 4959 2.50 4652 2.25...
- Page 23 APPENDIX A BLOWER PERFORMANCE DATA 7.5 TON HP DBH090*V STANDARD STATIC HORIZONTAL TURNS OPEN ESP, In H 3758 1.23 3479 1.07 3170 0.86 3000 0.69 3612 1.16 3356 1.02 3004 0.79 2685 0.59 3714 1.24 3415 1.07 3115 0.92 2736 0.69 3776 1.43...
- Page 24 APPENDIX A BLOWER PERFORMANCE DATA 8.5 TON HP DBH102*V STANDARD STATIC HORIZONTAL TURNS OPEN ESP, In H 4038 1.63 3759 1.37 3485 1.16 4161 1.83 3846 1.54 3559 1.29 3269 1.09 3969 1.74 3631 1.45 3334 1.20 3018 1.01 4075 1.94 3775 1.63...
- Page 25 APPENDIX A BLOWER PERFORMANCE DATA 10 TON HP DBHC120*V STANDARD STATIC HORIZONTAL TURNS OPEN ESP, In H 4870 2.07 4582 1.77 4265 1.46 3926 1.24 4671 1.96 4368 1.66 4037 1.37 3666 1.17 4464 1.86 4129 1.56 3781 1.27 4639 2.13 4311 1.76...
- Page 26 APPENDIX A BLOWER PERFORMANCE DATA 12.5 TON HP DBH150*V STANDARD STATIC HORIZONTAL TURNS OPEN ESP, In H 5717 3.01 5458 2.24 5117 1.99 4780 1.54 4440 1.35 5580 2.91 5261 2.11 4885 1.85 4538 1.42 4181 1.23 5409 2.78 5042 1.98 4640 1.71...
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Page 27: Appendix B Electrical Data
APPENDIX B ELECTRICAL DATA Electrical Data Optional Powered Optional Electrical Compressor Outdoor Fan Motor Indoor Fan Motor Optional Electric Heat Power Supply Model Number Convienience Power Rating Type Part # 42.7/42.7 50/50 9.6/8.7 52.3/51.4 60/60 3.3/3.0 46.0/45.7 50/50 9.6/8.7 3.3/3.0 55.6/54.4 60/60 50.5/56.5... - Page 28 APPENDIX B ELECTRICAL DATA Electrical Data Optional Powered Optional Compressor Outdoor Fan Motor Indoor Fan Motor Optional Electric Heat Convienience Power Power Supply Electrical Model Number Rating Outlet Exhaust Type Part # 14.6 18.1 15.8 19.3 22.4 26.8 EH*B-7M15 14.4 23.9 speed Belt...
- Page 29 APPENDIX B ELECTRICAL DATA Electrical Data Optional Powered Optional Compressor Outdoor Fan Motor Indoor Fan Motor Optional Electric Heat Power Supply Electrical Convienience Power Model Number Rating Outlet Exhaust Type Part # 20.3 24.6 21.3 25.6 27.9 33.3 EH*B-4M15 29.2 speed Belt 34.6...
- Page 30 APPENDIX B ELECTRICAL DATA Electrical Data Optional Powered Optional Electrical Compressor Outdoor Fan Motor Indoor Fan Motor Optional Electric Heat Convienience Power Power Supply Model Number Rating Outlet Exhaust Type Part # 49.0/49.0 60/60 9.6/8.7 58.6/57.7 70/70 3.3/3.0 52.3/52.0 60/60 9.6/8.7 3.3/3.0 61.9/60.7...
- Page 31 APPENDIX B ELECTRICAL DATA Electrical Data Optional Powered Optional Electrical Compressor Outdoor Fan Motor Indoor Fan Motor Optional Electric Heat Convienience Power Power Supply Model Number Rating Outlet Exhaust Type Part # 17.7 21.2 18.9 22.4 22.4 26.8 EH*B-7M16 14.4 23.9 speed Belt...
- Page 32 APPENDIX B ELECTRICAL DATA Electrical Data Optional Powered Optional Electrical Compressor Outdoor Fan Motor Indoor Fan Motor Optional Electric Heat Convienience Power Power Supply Model Number Rating Outlet Exhaust Type Part # 31.3 35.6 32.3 36.6 31.3 36.2 EH*B-4M16 32.3 speed Belt 37.4...
- Page 33 APPENDIX B ELECTRICAL DATA Electrical Data Optional Powered Optional Electrical Compressor Outdoor Fan Motor Indoor Fan Motor Optional Electric Heat Convienience Power Power Supply Model Number Rating Outlet Exhaust Type Part # 45.7/45.7 50/50 9.6/8.7 55.3/54.4 60/60 3.3/3.0 49.0/48.7 50/50 9.6/8.7 3.3/3.0 58.6/57.4...
- Page 34 APPENDIX B ELECTRICAL DATA Electrical Data Optional Powered Optional Compressor Outdoor Fan Motor Indoor Fan Motor Optional Electric Heat Power Supply Electrical Convienience Power Model Number Rating Outlet Exhaust Type Part # 20.3 23.8 21.5 38.3 41.8 EH*B-7M15 14.4 39.5 speed Belt DBH0907S...
- Page 35 APPENDIX B ELECTRICAL DATA Electrical Data Optional Powered Optional Compressor Outdoor Fan Motor Indoor Fan Motor Optional Electric Heat Power Supply Electrical Convienience Power Model Number Rating Outlet Exhaust Type Part # 21.8 26.1 22.8 27.1 44.3 48.6 EH*B-4M15 45.3 speed Belt 49.6...
- Page 36 APPENDIX B ELECTRICAL DATA Electrical Data Optional Powered Optional Compressor Outdoor Fan Motor Indoor Fan Motor Optional Electric Heat Power Supply Electrical Convienience Power Model Number Rating Outlet Exhaust Type Part # 51.9/51.9 60/60 9.6/8.7 61.5/60.6 70/70 3.3/3.0 55.2/54.9 60/60 9.6/8.7 3.3/3.0 64.8/63.6...
- Page 37 APPENDIX B ELECTRICAL DATA Optional Powered Optional Electrical Compressor Outdoor Fan Motor Indoor Fan Motor Optional Electric Heat Convienience Power Power Supply Model Number Rating Outlet Exhaust Type Part # 25.5 23.2 26.7 40.1 43.6 EH*B-7M16 14.4 speed 41.3 Belt 44.8 DBH1207S 575/3/60...
- Page 38 APPENDIX B ELECTRICAL DATA Optional Powered Optional Compressor Outdoor Fan Motor Indoor Fan Motor Optional Electric Heat Power Supply Model Number Electrical Rating Convienience Power Exhaust QTY RLA LRA QTY Type HP FLA Part # 69.9/69.9 90/90 9.6/8.7 79.5/78.6 100/100 3.3/3.0 73.2/72.9 90/90...
- Page 39 APPENDIX B ELECTRICAL DATA Optional Powered Optional Compressor Outdoor Fan Motor Indoor Fan Motor Optional Electric Heat Power Supply Model Number Electrical Rating Convienience Power Exhaust QTY RLA LRA QTY Type HP FLA Part # 30.9 35.2 31.9 36.2 53.4 57.7 EH*B-4M16 54.4...
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Page 40: Appendix C Unit Dimensions
APPENDIX C UNIT DIMENSIONS Models Dimension "A" in. DBC/DBH090-120 54-9/20 DBC150 54-9/20 DBH150 58-3/5 Horizontal Discharge NOTE NOTE For horizontal discharge, remove supply and return For horizontal discharge, remove supply and return duct cover panels from the end of the unit. Save duct cover panels from the end of the unit. -
Page 41: Appendix D Min-Max Airflow
APPENDIX D MIN-MAX AIRFLOW Model # Airflow DBC0903V 2400 DBC0904V 2400 DBC0907V 2400 DBC1023V 2750 DBC1024V 2750 DBC1027V 2750 DBC1203V 3250 DBC1204V 3250 DBC1207V 3250 DBC1503V 3750 DBC1504V 3750 DBC1507V 3750 DBC0903S 2400 DBC0904S 2400 DBC0907S 2400 DBC1023S 2750 DBC1024S 2750 DBC1027S 2750... -
Page 42: Wiring Diagram
WIRING DIAGRAM Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring. - Page 43 WIRING DIAGRAM Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
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- Page 48 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. Our continuing commitment to quality products may mean a change in specifications without notice.