Carrier Infinity 48DU-024 Installation Instruction Download | Manualshive

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Summary of Contents for Infinity 48DU-024

Page 1: ...Adjusting Refrigerant Charge 25 Refrigerant Charge 25 No Charge 25 Low Charge Cooling 25 To Use Cooling Charging harts 25 Non Comnmnicating Emergency Cooling Heating Mode 25 MAINTENANCE 27 29 Air Fil...

Page 2: ...er are dedicated Low NOx units designed for California installations These models meet the California maximum oxides of nitrogen NOx emissions requirements of 40 nanograms joule or less as shipped fro...

Page 3: ...7 3 8 441 17 3 8 441 D IN MM 28 3 4 730 28 3 4 730 40 1 4 1022 40 1 4 1022 E IN MM 30 3 8 771 30 3 8 771 41 15 16 1065 41 15 16 1065 F IN MM 44 5 16 1126 44 5 16 1126 44 7 16 1129 44 7 16 1129 A05308...

Page 4: ...FiD DITAY SERJ PORTS 5 9 _ il6 3 0 90i 4 COMPI _5SOI IIOW R GAS S CiiO_ EL R AL ACOESS PANEL 1126 i 4 78 Z8 6 I 13 OL i 0 i0_11 liNI Rf i O_ROL NTR_ i i s i i LEFT SIDE VIEW FRONT VIEW i _ _ _i i 8 _...

Page 5: ...i01 45 B 042050 ji11150 3 04_090 ji13 51 5 04_I_0 ji15 52 2 0_09_ ji26 5_ 2 i 0_11_ ji2_ _ _ 2 i O_l_O ji26 _ _ 2 1 _o I 91 41 i 87 i I 9 41 r 1 8 lls8 i 182 8 1 II e 4202 si iiiiiii ii ii LI EIEIS 14...

Page 6: ...036090 042060 042090 2 2 2 1 2 2 1 2 3 3 3 1 2 3 1 2 398 401 403 408 485 493 507 515 2 Stage Scroll 10 1 10 1 11 3 11 3 9 5 9 5 13 8 13 8 TXV 2Ton 2Ton 3Ton 3Ton 3Ton 3Ton 4Ton 4Ton EA36YD129 EA36YD1...

Page 7: ...or high capacity type Air filter pressure drop for non standard filters illust not exceed 0 08 in we Step 3 Provide Clearances The required minimum service clearances are shown in Fig 5 and 6 Adequate...

Page 8: ...e securing the unit If a screw is stripped replace the stripped one with a larger diameter screw included Ri_in_ Liftin_ of Unit 1 Bend top of brackets down approximately 30 degrees from the corner po...

Page 9: ...ollow latest Sheet Metal and Air Conditioning Contractors National Association SMACNA and Air Conditioning Contractors Association ACCA minimum installation standards for residential heating and air c...

Page 10: ...25rnm MIN Fig 9 Condensate Trap C99013 Step 8 Install Gas Piping The gas supply pipe enters the unit through the access hole provided The gas connection to the unit is made to the 1 2 in FPT gas inlet...

Page 11: ...r to the unit rating plate NEC and local codes for maximum fuse circuit breaker size and minimum circuit amps ampacity for wire sizing See Table 3 for electrical data The field supplied disconnect may...

Page 12: ...ES AUTOHUMIDITY CONTROL COMFORT ROLLBACK ETC WILL BE LOST IFTHE OAT ISNOT CONNECTED For detailed mounting instructions for the OAT sensm please refer to TSTATXXSEN01 B installation instructions catalo...

Page 13: ...ROUND SCREW IN SPLICE BOX GROUND LEAD L1 Z_ BLK L2 NOTE Use copper wire only LEGEND NEC National Electrical Code Field Wiring _ Splice Connections Fig 12 Line Power Connections A06299 I HP AC Board Bo...

Page 14: ...oad equipment refer to NEC Articles 430 and 440 the overcurrent protective de ice for the unit shall be Power Supply fuse The CGA Canadian Gas Association units may be fuse or circuit breaker 2 Minimu...

Page 15: ...orrectly positioned in fan orifice Top 1 3 of condenser fan blade should be within fan orifice venturi c Ensure fan hub is positioned correctly with respect to motor housing See Fig 23 d Make sure tha...

Page 16: ...Y 1 Low static pressure loading of blower while access panel is removed will cause blower to run slowly Particularly at low airflow requests This is normal do not assume a fault exists 2 Recheck airfl...

Page 17: ...z q_ z z icD i _ _ __ _ b_ I I o I i Fig 16 Wiring Schematic 48DU Single Phase A06310 n 17...

Page 18: ...m defectNe switch or connections or inadequate combustion air supply flame roll out switch open STATUS CODE 34 IGNITION PROVING FAILURE Control will try three more times before lockout 14 occurs If fl...

Page 19: ...uestor demand high stage cooling is energized by the UI After second stage is satisfied the unit returns to low stage operation until first stage is satisfied or until second stage is required again W...

Page 20: ...ompressor voltage sensed then disappears while cooling or heat High Stage Ther mal Cutout 72 ing demand exists Possible causes are internal compressor over Ioad trip or start relay not releasing if in...

Page 21: ...ting stage torun based onfeedback from the UI Ifthe UI isasking forlowstage gas heat the ignition control will change the inducer speed tolow speed and keep the gas valve energized on lowstage Ifthe U...

Page 22: ...ting screw 3 16 or smaller flat tipped screwdriver counterclockwise out to decrease rate and clockwise in to increase input rate 1 2 NPT INLET A04167 Fig 18 Redundant Automatic Gas Control Valve NOTE...

Page 23: ...t one revolution takes 84 sec and the heating value of the gas is 1050 Btu ft3 Proceed as follows a 84 sec to complete one revolution b 3600 84 42 9 c 42 9 x 2 85 8 ft3 of gas flow hr d 85 8 x 1050 90...

Page 24: ...se of a gas component failure To initiate the component test procedure ensure that there are no UI inputs to the control the ABCD connector can be removed from the Infinity control board for this oper...

Page 25: ...reading Indoor air CFM must be within the normal operating range of the unit TO USE COOLING CHARGING CHARTS Take the liquid line temperature and read the manifold pressure gauges Refer to the chart to...

Page 26: ...oolir_g R 410A uired Subcoolin_ Re luired 8ubcoolin_ C Fressure Fressure _i_ 5 10 15 25 kPa 3 5 8 14 174 56 51 46 36 1200 13 11 8 2 181 59 54 49 39 1248 15 12 9 4 188 61 56 51 41 1296 16 13 10 5 195 6...

Page 27: ...n module is located in the control box Refer to additional information in the Start Up Troubleshooting section for Status Code information Step 6 Main Burners At the beginning of each heating season i...

Page 28: ...y After inspecting the electrical controls and wiring replace all the panels Start the unit and observe at least one complete cooling cycle to ensure proper operation If discrepancies are observed in...

Page 29: ...ming any service that may risk exposure of compressor oil to the roof take appropriate precautions to protect roofing Procedures which risk oil leakage include but are not limited to compressor replac...

Page 30: ...or may be stuck closed or there is a wiring error The control will flash the appropriate fault code COMPRESSOR THERMAL CUTOUT If the control senses the compressor voltage after start up and is then ab...

Page 31: ...or should fail lowambient cooling willnot be allowed Defrost willoccur ateach time interval during heating operation but willterminate after 5minutes If there isathermistor outofrange error defrost wi...

Page 32: ...ig lowside with 520 psig lowside retard Use hoses with 750 psig service pressure rating Leak detectors should bedesigned todetect HFC refrigerant Puron as with other HFCs isonly compatible with POE oi...

Page 33: ...ce or low side restricted Insufficient coil airflow Temperature too low in conditMned area Outdoor ambient below 55 F Filter drier restricted Blower wheel not secured to shaft Insufficient voltage at...

Page 34: ...a cool down peri od to reset Check ail wiring and wire nut connections Check flame ignition and sense electrode posi tioning Adiust as necessary 1 Check gas line for air Purge as necessary NOTE After...

Page 35: ...OCATION IN HOUSING ORIFICE AND SETSCREW TIGHTNESS III START UP ELECTRICAL SUPPLY VOLTAGE COMPRESSOR AMPS INDOOR EVAPORATOR FAN AMPS TEMPERATURES OUTDOOR CONDENSER AIR TEMPERATURE RETURN AIR TEMPERATUR...

Page 36: ...W Morris St Indianapolis iN 46231 Printed in USA Edition Date 03 07 i Manufacturer reserves the right to change_ at any time_ specifications and designs without notice and without obligations Catalo_...

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