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APPENDIX A ECONOMIZER PRESSURE DROP

SCFM

4500

5000

5500

6000

6500

7000

7500

8000

8500

9000

9500

10000

(In WG)

0.15

0.18

0.22

0.27

0.32

0.37

0.42

0.48

0.55

0.61

0.69

0.76

Airflow Pressure Drop of Downflow Economizer for 15 to 25 Ton Rooftop Units (100% Return Air)

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Содержание DBG Series

Страница 1: ...ndex Replacement Parts 2 Safety Instructions 2 General Information 3 Unit Location 4 Clearances 6 Roof Curb Post Installation Checks 6 Roof Top Duct Connections 6 Rigging Details 6 Electrical Wiring 8...

Страница 2: ...ATING OCCUR OR THE GAS SUPPLY FAIL TO SHUT OFF TURN OFF THE MANUAL GAS SHUTOFF VALVE EXTERNAL TO THE FURNACE BEFORE TURNING OFF THE ELECTRICAL SUPPLY WARNING SHEET METAL PARTS SCREWS CLIPS AND SIMILAR...

Страница 3: ...National Codes It is the installer s responsibility to install the product in accordance with National Codes and or prevailing local codes and regulations The heating and cooling capacities of the un...

Страница 4: ...t in an area where the outdoor air i e combustionairfortheunit willbefrequentlycontaminated by compounds containing chlorine or fluorine Common sources of such compounds include swimming pool chemical...

Страница 5: ...ove wooden struts and shipping brace per installation instructions The struts are located in the fork holes and are used to protect the unit from damage while lifting with forks The shipping brace is...

Страница 6: ...ance around the unit should be kept for safety service maintenance and proper unit operation A clearance of 75 on the service side of the unit is recommended to facilitate possible blower assembly sha...

Страница 7: ...contact with the unit during transport Remove wood strutsmountedbeneathunitbaseframebeforesettingunit on roof curb These struts are intended to protect unit baseframefromforkliftdamage Removalisaccomp...

Страница 8: ...HE WIRING PROTECT WIRING FROM SHARP EDGES FOLLOW NATIONAL ELECTRICAL CODE AND ALL LOCAL CODES AND ORDINANCES DO NOT ROUTE WIRES THROUGH REMOVABLE ACCESS PANELS CAUTION CONDUIT AND FITTINGS MUST BE WEA...

Страница 9: ...AND LOW VOLTAGE BLOCK LOCATIONS R control wiring through grommet control wiring Field for linev oltage Ground Lug Field wiring enters from LOW HIGH 25 TONS MODEL POWER AND LOW VOLTAGE BLOCK LOCATIONS...

Страница 10: ...RNING IMPORTANT NOTE This unit is factory set to operate on natural gas at the altitudes shown on the rating plate TO PREVENT PROPERTY DAMAGE PERSONAL INJURY OR DEATH WHEN EITHER USING PROPANE GAS ALO...

Страница 11: ...to the gas valve to keep it from turning 6 Install a manual shut off valve in a convenient location within six feet of unit between the meter and the unit 7 Tighten all joints securely 8 The unit must...

Страница 12: ...high fire and within 6 7 7 3 inches w c low fire at the manifold with all gas appliances in operation Maintaining proper gas pressure depends on three main factors 1 Vaporization rate which depends on...

Страница 13: ...3 8 W C WARNING THIS UNIT MUST BE ISOLATED FROM THE GAS SUPPLY PIPING SYSTEM BY CLOSING ITS INDIVIDUAL MANUAL SHUTOFF VALVE DURING ANY PRESSURE TESTING EQUAL TO OR LESS THAN 1 2 PSIG CAUTION 7 There m...

Страница 14: ...Responsibility The installing contractor must be certain that All supply and return air ductwork is in place properly sealed and corresponds with installation instructions All thermostats are mounted...

Страница 15: ...or nameplate amps are not exceeded A final check of amp draw should be made upon completion of air balancing of the duct system see Appendix B Set Evaporator Fan Rpm Actual RPM s must be set and verif...

Страница 16: ...n device which automatically lights the main burner DO NOT try to light burner by any other method 6 Move the gas control valve switch to the OFF position Do not force 7 Wait five minutes to clear out...

Страница 17: ...he dripleg and installing a predrilled cap with a hose fitting With Power And Gas On 2 Put unit into heating cycle and turn on all other gas consuming appliances NATURAL Min 5 0 W C Max 10 0 W C PROPA...

Страница 18: ...Using a leak detection solution or soap suds check for leaks at pressure boss screw Bubbles forming indicate a leak SHUT OFF GAS AND FIX ALL LEAKS IMMEDIATELY TO PREVENT UNRELIABLE OPERATION OR EQUIPM...

Страница 19: ...lose manual gas shut off valve external to the unit 6 Replace the heat exchanger door on the unit 7 If cooling and or air circulation will be desired turn ON the electrical power Automatic Reset High...

Страница 20: ...igeration Sequence Check With the disconnect switch open remove the field connected ther mostat wire from terminal R on TB1 terminal block Place a jumper across terminals R and G and across R and Y on...

Страница 21: ...e maintenance is the best way to avoid unnecessary expense and inconvenience Have this system inspected at regu lar intervals by qualified service personnel at least twice a year Routine maintenance s...

Страница 22: ...Y ADJUSTMENT CONTACT A QUALIFIED SERVICER AT ONCE IF AN ABNORMAL FLAME SHOULD DEVELOP WARNING At least once a year prior to or during the heating season make a visual check of the burner flames NOTE T...

Страница 23: ...ains on The diagnostic fault code is two flashes Pressure Switch Stuck Closed 3 FLASH CODE A stuck closed pressure switch can be caused by a faulty pressure switch or faulty wiring If the control enco...

Страница 24: ...BHP 0 2 9359 4 92 8991 3 79 8621 3 54 8188 3 27 7826 3 04 0 4 9018 3 18 8632 4 39 8251 3 39 7867 3 15 7363 2 85 6992 2 63 0 6 8279 2 96 7879 3 86 7484 2 99 7085 2 75 0 8 7957 4 82 7513 2 73 7097 3 35...

Страница 25: ...6 8250 6 12 7657 5 40 7033 4 74 1 2 8934 7 89 8550 7 25 8175 6 57 7598 5 72 7043 5 04 6394 4 38 1 4 8424 7 49 8071 6 91 7639 6 21 7041 5 38 6318 4 63 1 6 7959 7 21 7609 6 57 7088 5 84 6295 4 97 1 8 74...

Страница 26: ...RE DROP SCFM 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 9500 10000 In WG 0 15 0 18 0 22 0 27 0 32 0 37 0 42 0 48 0 55 0 61 0 69 0 76 Airflow Pressure Drop of Downflow Economizer for 15 to 25 To...

Страница 27: ...lt Drive 7 50 7 5 DCG1807V 575 3 60 9 0 78 0 9 0 78 0 3 0 33 0 7 Model Number Electrical Rating Compressor Circuit 1 Compressor Circuit 2 Outdoor Fan Motor Indoor Fan Motor Optional Powered Convienien...

Страница 28: ...DIMENSIONS VERTICAL DISCHARGE TOP VIEW 21 60 7 48 22 B C D A Model A B C D 15 Ton 20 Ton 133 1 2 88 7 32 50 9 32 5 5 32 25 Ton 133 1 2 88 7 32 53 9 32 5 5 32 NOTE 15 20 ton models have 3 fans 25 ton...

Страница 29: ...29 APPENDIX D WIRING DIAGRAMS...

Страница 30: ...ED CB2 L2 T3 L1 T2 L3 T1 HIGH SPEED CB1 L2 T3 L1 T2 L3 T1 OR RD BK GY BL YL YL BL GY BK RD OR L3 T3 L2 CC1 L1 T1 T2 L3 T3 L2 CC2 L1 T1 T2 L3 T3 L2 BC1 L1 T1 T2 L3 T3 L2 BC2 L1 T1 T2 T3 T2 T1 COMP 1 RD...

Страница 31: ...S ONLY USE NEC CLASS 2 WIRE 4 3 L1 AND L2 ON IIC CONTROL IS 24V INPUT 0140L03767 A COMPONENT LEGEND T1 TERMINAL BLOCK L1 TB2 2 FROM TERMINAL 3 TO TERMINAL 2 ON THE TRANSFORMER 6 FOR 208V OPERATION MOV...

Страница 32: ...L3 T1 HIGH SPEED CB1 L2 T3 L1 T2 L3 T1 OR RD BK GY BL YL YL BL GY BK RD OR L3 T3 L2 CC1 L1 T1 T2 L3 T3 L2 CC2 L1 T1 T2 L3 T3 L2 BC1 L1 T1 T2 L3 T3 L2 BC2 L1 T1 T2 T3 T2 T1 COMP 1 RD YL BK CCH1 T3 T2...

Страница 33: ...33 Wiring is subject to change Always refer to the wiring diagram on the unit for the most up to date wiring DBG180 DBG240 460 575 3 60 2 SPEED WIRING DIAGRAMS...

Страница 34: ...RE SWITCH MAIN LIMIT OPEN BAD SWITCH STICKING GAS VALVE 3 MIN COMP ANTI CYCLE TIMER L2 L3 L1 L2 L3 L1 IIC DIAGNOSTIC BLINK CODES L1 L2 L3 LINE VOLTAGE YL RD BK PU OR 7 7 SEE ACCESSORY KIT LITERATURE F...

Страница 35: ...FOR OPTIONAL CONVENIENCE OUTLET WIRING DIAGRAM POWER DIAGRAM F L P M L P PLM PLF BK RD PU L1 L2 L3 T1 T2 T3 LAC MC YL BK BR BK BR YL T3 T2 T1 BR L1 L2 L3 T1 T2 T3 EM GY BL YL RD BL BK OR RD YL BK OR...

Страница 36: ...VOLTAGE TERMINAL BLOCK 4 TERMINALS FOR 24VAC PWR RD BK BR WIRE AND 6 TERMINALS FOR 24VAC COM BL WIRE 4 CONNECTIONS SHOWN ARE FOR 1 STAGE HEAT OPERATION WHEN 2 STAGE OPERATION IS REQUIRED REMOVE WH JU...

Страница 37: ...necessary Check unit wiring to ensure it is not in contact with refrigerant piping or sharp metal edges Tighten as needed Verify that the crankcase heaters have been energized for 24 hours 9 2014 Date...

Страница 38: ...2 Compressor Amps Blower Amps Condenser Fan Amps ELECTRICAL Total External Static Pressure Blower Wheel RPM TEMPERATURES Outdoor Air Temperature Return Air Temperature Cooling Supply Air Temperature...

Страница 39: ...39 THIS PAGE INTENTIONALLY LEFT BLANK...

Страница 40: ...products may mean a change in specifications without notice 2019 CUSTOMER FEEDBACK Daikin is very interested in all product comments Please fill out the feedback form on the following link https daiki...

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