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INSTALLATION INSTRUCTIONS

DBC/DBH Series Light Commercial Packaged Heating and 

Cooling Unit 7.5T to 12.5T 

Installation Instructions

 

IOD-1049B

09/2020

Our continuing commitment to quality products may mean a change in specifications without notice. 

©2020 

19001 Kermier Rd., Waller, TX 77484

www.daikincomfort.com

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.

WARNING

WARNING

PROP 65 WARNING 

FOR CALIFORNIA CONSUMERS

Cancer and Reproductive Harm -

www.P65Warnings.ca.gov

0140M00517-A

Summary of Contents for DBC Series

Page 1: ...erty 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...

Page 2: ...B Electrical Data 27 Appendix C Unit Dimensions 40 Appendix D Min Max Airflow 41 Wiring Diagram 42 Start Up Checklist 44 To The Installer Before installing this unit please read this manual to familia...

Page 3: ...cepted industry guides such as the ASHRAE Handbooks The manufacturer assumes no responsibility for equipment installed in violation of any code or regulation The mechanical installation of the package...

Page 4: ...tly on wood floors or on Class A Class B or Class C roof covering material To avoid possible personal injury a safe flat surface for service personnel should be provided As indicated on the unit data...

Page 5: ...rk must be constructed using industry guidelines The duct work must be placed into the roof curb before mounting the package unit Our full perimeter curbs include duct connection frames to be assemble...

Page 6: ...nit base frame from fork lift damage Removal is accomplished by extracting the sheet metal retainers and pulling the struts through the base of the unit Refer to rigging label on the unit Your unit ma...

Page 7: ...65 302 Corner Weight B 359 347 344 401 Corner Weight C 267 300 317 312 Corner Weight D 302 311 290 379 Unit Shipping Weight 1227 1287 1291 1394 Unit Operating Weight 1152 1212 1216 1314 X inches 43 44...

Page 8: ...ree wire The unit is factory wired for the voltage shown on the unit s data plate NOTE If supply voltage is 208V lead on primary of transformer s must be moved from the 230V to the 208V tap Refer to w...

Page 9: ...holes in the unit base must be sealed including those around conduit nuts to prevent water leakage into building All required conduit and fittings are to be field supplied Supply voltage to roof top...

Page 10: ...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 condensate drainage Hand tighten drain fitting to the drai...

Page 11: ...installation instructions 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 main supply lines must be f...

Page 12: ...run high stage CFM below 300 CFM per ton evaporator freezing or poor unit performance is possible Evaporator Fan Rotation Check Check that fan rotates clockwise when viewed from the drive side of unit...

Page 13: ...GROOVES 5 Ensure all keys are in place and the set screws tight before starting drive Recheck set screws and belt tension after 24 hours service NOTE Future adjustments should be made by loosening th...

Page 14: ...ly checked so postpone the test to another day when conditions are more suitable but DO NOT FAIL TO TEST If the outdoor ambient is low and the unit operates properly on the heating cycle you may check...

Page 15: ...dels with V or S in the 8th position of the model number For 2 speed models the indoor blower will operate on low speed when in Fan Only mode or while in first stage Cooling mode Unit will operate on...

Page 16: ...also act as check valves to allow for the reverse of refrigerant flow When the heat pump is on the heating cycle the outdoor coil is functioning as an evaporator The temperature of the refrigerant in...

Page 17: ...rently have sharp edges and it is necessary that the installer and service personnel exercise caution Preventive maintenance is the best way to avoid unnecessary expense and inconvenience Have this sy...

Page 18: ...allow air entering the indoor coil to drop below 65 F Air below this temperature will cause low discharge pressure thus low suction pressure and excessive defrost cycling resulting in low heating outp...

Page 19: ...1 51 2481 1003 1 28 DBC090 S HIGH STATIC HORIZONTAL1 ESP In H2O TURNS OPEN 0 1 2 3 4 5 1 To operate below 0 8 H2O external static pressure motor and blower sheave must be changed to VL40 and AK84H re...

Page 20: ...44 1 8 3732 1096 2 32 2781 1053 1 51 ESP In H2O TURNS OPEN 0 1 2 3 4 5 1 To operate below 0 8 H2O external static pressure motor and blower sheave must be changed to VL40 and AK84H respectively or eq...

Page 21: ...O TURNS OPEN 0 1 2 3 4 5 1 To operate below 0 8 H2O external static pressure motor and blower sheave must be changed to VL40 and AK74H respectively or equivalents DBC120 V STANDARD STATIC DOWNSHOT1 CF...

Page 22: ...5348 1144 4 26 4928 1106 3 77 4389 1068 3 19 3762 1030 2 22 ESP In H2O TURNS OPEN 0 1 2 3 4 5 1 To operate below 0 8 H2O external static pressure motor and blower sheave must be changed to VP44 and AK...

Page 23: ...P CFM RPM BHP CFM RPM BHP 0 1 3532 620 1 05 3276 600 0 78 0 2 3601 663 1 13 3264 620 0 93 2947 600 0 67 0 3 3654 707 1 18 3323 663 1 00 2955 620 0 81 2617 600 0 57 0 4 3728 748 1 24 3377 707 1 05 3011...

Page 24: ...2 83 2797 1058 2 10 DBH102 V STANDARD STATIC DOWNSHOT1 CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP 0 1 3933 610 1 29 0 2 4039 655 1 46 3658 611 1 20 0 3 4172 693 1 66 3763...

Page 25: ...DOWNSHOT1 CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP CFM RPM BHP 0 1 4836 649 1 73 4463 610 1 41 0 2 4976 692 1 97 4557 650 1 60 4177 610 1 30 0 3 4641 693 1 82 4213 653 1 47 3783 61...

Page 26: ...2 5963 762 2 57 5529 721 2 24 5102 681 1 69 4625 642 1 43 0 3 5716 762 2 40 5241 721 2 06 4778 681 1 53 4276 642 1 27 0 4 5439 762 2 22 4929 721 1 87 4429 681 1 36 3910 642 1 12 0 5 5581 805 2 90 5131...

Page 27: ...24 30 1 20 7 25 4 3 1 25 30 27 9 30 4 3 33 3 35 1 29 2 30 4 3 1 34 6 35 50 5 60 4 3 55 9 60 1 51 7 60 4 3 1 57 1 60 73 80 4 3 78 4 80 1 74 3 80 4 3 1 79 7 80 18 3 20 4 3 22 6 25 1 19 3 20 4 3 1 23 6...

Page 28: ...0 45 9 45 6 50 50 9 6 8 7 3 3 3 0 55 5 54 3 60 60 46 6 52 6 50 60 9 6 8 7 58 6 63 5 60 70 3 3 3 0 50 7 56 4 60 60 9 6 8 7 3 3 3 0 62 7 67 2 70 70 85 7 97 7 90 100 9 6 8 7 97 7 109 100 110 3 3 3 0 89 8...

Page 29: ...25 1 2 18 5 20 3 5 1 2 22 25 21 25 3 5 25 4 30 1 2 22 5 25 3 5 1 2 26 9 30 39 1 40 3 5 43 5 45 1 2 40 6 45 3 5 1 2 45 45 57 1 60 3 5 61 5 70 1 2 58 6 60 3 5 1 2 63 70 Model Number Electrical Rating C...

Page 30: ...35 1 24 5 30 4 3 1 28 8 35 27 9 30 4 3 33 3 35 1 29 2 30 4 3 1 34 6 35 50 5 60 4 3 55 9 60 1 51 7 60 4 3 1 57 1 60 73 80 4 3 78 4 80 1 74 3 80 4 3 1 79 7 80 22 1 25 4 3 26 4 30 1 23 1 25 4 3 1 27 4 30...

Page 31: ...60 6 60 3 70 70 9 6 8 7 3 3 3 0 70 2 69 0 80 80 57 3 57 3 70 70 9 6 8 7 66 9 67 4 80 80 3 3 3 0 60 6 60 3 70 70 9 6 8 7 3 3 3 0 70 2 71 1 80 80 89 6 102 90 110 9 6 8 7 102 112 110 125 3 3 3 0 93 7 10...

Page 32: ...1 2 23 4 25 3 5 1 2 26 9 30 22 4 25 3 5 26 8 30 1 2 23 9 25 3 5 1 2 28 3 30 40 5 45 3 5 44 8 45 1 2 42 45 3 5 1 2 46 3 50 58 5 60 3 5 62 9 70 1 2 60 70 3 5 1 2 64 4 70 Model Number Electrical Rating...

Page 33: ...22 2 25 4 3 1 26 5 30 43 8 45 4 3 48 1 50 1 44 8 45 4 3 1 49 1 50 66 3 70 4 3 70 6 80 1 67 3 70 4 3 1 71 6 80 88 9 90 4 3 93 2 100 1 89 9 90 4 3 1 94 2 100 19 8 25 4 3 24 1 30 1 20 8 25 4 3 1 25 1 30...

Page 34: ...0 48 9 48 6 60 60 9 6 8 7 3 3 3 0 58 5 57 3 60 60 84 7 90 7 90 100 9 6 8 7 94 3 99 4 100 100 3 3 3 0 88 0 93 7 90 100 9 6 8 7 3 3 3 0 97 6 102 100 110 124 136 125 150 9 6 8 7 133 145 150 150 3 3 3 0...

Page 35: ...26 5 30 1 2 24 2 25 3 5 1 2 27 7 30 41 45 3 5 44 5 45 1 2 42 2 45 3 5 1 2 45 7 50 59 60 3 5 62 5 70 1 2 60 2 70 3 5 1 2 63 7 70 77 1 80 3 5 80 6 90 1 2 78 3 80 3 5 1 2 81 8 90 Model Number Electrical...

Page 36: ...1 24 4 30 4 3 1 28 7 30 45 9 50 4 3 50 2 60 1 46 9 50 4 3 1 51 2 60 68 5 70 4 3 72 8 80 1 69 5 70 4 3 1 73 8 80 91 100 4 3 95 3 100 1 92 100 4 3 1 96 3 100 22 25 4 3 26 3 30 1 23 25 4 3 1 27 3 30 44...

Page 37: ...3 5 60 5 70 1 2 58 2 60 3 5 1 2 61 7 70 75 1 80 3 5 78 6 80 1 2 76 3 80 3 5 1 2 79 8 80 EH B 7M46 45 43 3 DBH1207S 575 3 60 2 5 1 39 5 2 0 33 3 5 2 speed Belt Drive High Static 3 3 5 EH B 7M16 15 14...

Page 38: ...5 9 6 8 7 3 3 3 0 156 167 175 175 182 200 200 225 9 6 8 7 192 209 200 225 3 3 3 0 186 203 200 225 9 6 8 7 3 3 3 0 195 212 200 225 33 2 40 4 3 37 5 45 1 34 2 40 4 3 1 38 5 45 55 7 60 4 3 60 70 1 56 7 6...

Page 39: ...30 40 8 45 3 5 44 3 45 1 2 42 45 3 5 1 2 45 5 50 58 9 60 3 5 62 4 70 1 2 60 1 70 3 5 1 2 63 6 70 76 9 80 3 5 80 4 90 1 2 78 1 80 3 5 1 2 81 6 90 Optional Powered Convienience Optional Power Exhaust Po...

Page 40: ...d on the flanges around the duct openings and the gasket is APPENDIX C UNIT DIMENSIONS Horizontal Discharge Vertical Discharge Bottom of Unit NOTE For horizontal discharge remove supply and return duc...

Page 41: ...903S 2400 X X X X X X DBC0904S 2400 X X X X X X DBC0907S 2400 X X X X X X DBC1023S 2750 X X X X X X DBC1024S 2750 X X X X X X DBC1027S 2750 X X X X X X DBC1203S 3250 X X X X X X DBC1204S 3250 X X X X...

Page 42: ...ITH PINK STRIPE BR BROWN GR GREEN GY GRAY OR ORANGE PK PINK PU PURPLE RD RED TN TAN WH WHITE YL YELLOW YL PK YELLOW WITH PINK STRIPE POWER AND CONTROLS WIRING DIAGRAM DBH 090 120 LINE VOLTAGE 208 230...

Page 43: ...G IN JUMPER PLUG AT THE LAST SAFETY DEVICE INSTALLED IF A THIRD PARTY SAFETY DEVICE IS FIELD INSTALLED CUT THE RED WIRE ON THE JUMPER PLUG AND WIRE A NORMALLY CLOSED DRY CONTACT IN SERIES WITH THE CUT...

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Page 48: ...2020 19001 Kermier Rd Waller TX 77484 www daikincomfort com CUSTOMER FEEDBACK Daikin is very interested in all product comments Please fill out the feedback form on the following link https daikincom...

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