Carrier Infinity 50DT, Installation Instructions Manual

Page 1: ...y Installation 10 Special Procedures for 208 v Operation 10 PRE START UP 12 START UP 12 21 Unit Start Up 12 16 Sequence of Operation 16 19 Check for Refrigerant Leaks 19 Start Up Adjustments 19 Checking Cooling and Heating Control Operation 19 Checking and Adjusting Refrigerant Charge 19 Refrigerant Charge 19 No Charge 19 Low Charge Cooling 19 To Use Cooling Charging Charts 19 Indoor Airflow and A...

Page 2: ...llet If unit appears tobe damaged oristorn loose from itsanchorage have itexamined bytransportation inspectors before removal Forward claim papers directly totransportation company Manufacturer is not responsible forany damage incurred intransit Check allitems against shipping list Immediately notify the nearest Carrier office ifany item ismissing Toprevent loss ordamage leave allparts in original...

Page 3: ...17 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 G IN MM 45 15 16 1167 45 15 16 1167 46 1 16 1169 46 1 16 1169 2 Seat strip must be applied as required to unit being installed 3 Dimensions are in inches 4 Dimension in are in millimeters 5 Roof curb...

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Page 5: ... _ _ S _ _ UN _ _ 8 12 001 S_I _ OPPOS _ D_ i8 355 6 1 4 O8 _O_ 0 40J _1_11_ 12 _ 3 581 ELECTRIC iI _T P_d_EL 8_4 4 _ _0 REC IREQUII DCLE_RAN_S _ i_ I TE_8 l _ _E_ EE _ L_Ji S PO_ EI_E_ 0E i06_ 8 42 0O 8_ii _1_ J_JSRO_Nt E St_ 8 _ _fR E_4_R_8 _f _i4 C 156 081 U J_ _1_ 818 _ OI _0 _ _ _ 0 q_ p RE_UIREB CLF_RAN 2E FOR OP_TIO_ ARD 51_ qlCING E _P COIL _CCESS i8 914 0 36 00 PO_ I_ _ _1i_ 5_E g_4 3 156...

Page 6: ... injury or death Before installing or servicing system always turn off main power to system There may be more than one disconnect switch Turn off accessory heater power switch if applicable Tag disconnect switch with a suitable warning label This bracket is to be used to rig lift a Small Packaged Product onto roofs or other elevated structures PROPERTY DAMAGE HAZARD Failure to follow this warning ...

Page 7: ...ts from falling into the conditioned space Units with electric heaters require 90 degree elbow in supply duct When designing and installing ductwork consider the following 1 All units should have field supplied filters or accessory filter rack installed in the return air side of the unit Recommended sizes for filters are shown in Table 1 2 Avoid abrupt duct size increases and reductions Abrupt cha...

Page 8: ...e the trap at the beginning of the cooling season start up Step 7 Install Electrical Connections ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death The unit cabinet must have an uninterrupted unbroken electrical ground This ground may consist of an electrical wire connected to the unit ground screw in the control compartment or conduit approved for elec...

Page 9: ...Face Area sq ft 3 7 5 7 5 7 INDOOR FAN Nominal Airflow Cfm Comfort Variabte based on Comfort Settings see User Interface instructions for more information Efficiency 700 875 1050 1225 1400 1750 Max 800 1000 1200 1400 1600 2000 Size in 10x10 10x10 11x10 11x10 11x10 11x10 Motor HP RPM 1 2 1 2 3 4 3 4 3 4 1 IIGH PRESSURE SWITCH psig Cutout 670 _ 10 Reset Auto 470 _ 25 IIGH PRESSURE SWITCH 2 peig Comp...

Page 10: ...pproved electric heater kits NOTE Units installed without electric heat should have a factory supplied sheet metal block off plate installed over heater opening This reduces air leakage and formation of exterior condensation B Outdoor Air Thermistor OAT NOTE THE INSTALLATION OF AN OUTDOOR TEMPERATURE SENSOR USING THE INFINITY CONTROL BOARD OAT TERMINALS IS REQUIRED MANY INFINITY FEATURES ELECTRIC ...

Page 11: ...its may be fuse or circuit breaker 8 Minimum wire size is based on 60 C copper wire If other than 80 C wire is used or if length exceeds wire length in table determine size from NEC ELECTRIC HEAT NOMINAL FLA kW 3 8 5 0 18 1 20 8 5 4 7 2 26 0 30 0 7 5 10 0 38 1 41 7 3 8 5 0 18 1 20 8 5 4 7 2 28 0 30 0 7 5 10 0 38 1 41 7 11 3 15 0 54 2 82 5 3 8 5 0 18 1 20 8 5 4 7 2 28 0 30 0 7 5 10 0 38 1 41 7 11 3...

Page 12: ...Always check high and low voltage supply to the unit components Check the integrity of the plug receptacle connections and unit wiring harness prior to assuming a component failure A LED Description LEDs built into Infinity control boards provide installer or service person information concerning operation and or fault condition of the unit controls and the Indoor Fan ECM motor This information is...

Page 13: ...otor control module is available as a replacement part VERIFY MOTOR WINDING SECTION ELECTRICAL SHOCK HAZARD Failure to follow this warning could result in personal injury or death After disconnecting power from the ECM motor wait at least 5 minutes before removing the control section Internal capacitors require time to discharge Before proceeding to replace a motor control module 1 Check motor win...

Page 14: ...ily CURTA I MENI OPTIOP_AtCONNECTIO _ONL FAC ORY _RS PROVIDED NOI ONNEC ED Z_ LEGEND O TER_I_L _KED_ _C CAPAC_oRCO_I_CIOR IE_A_ _UN_E_ I C_K CASE _l _IE_ 0 SPLICE CO_P COMPRESSOR O_e_ C_SP_ CE _M_K_D HELD COntrOL_ RI_C _0 G_OU_ HEL_ PO_ER_I_G _PS H_6H PRESSURE S_ICH ACCESSORYOR OPtIOnaL HPS_ HfG__RF SSU_F S_ H LIO_ DL _E SOLE_O D PS I0_ P_SS_RE S_J_CH Fig 16 Wiring Schematic 50DT Single Phase A062...

Page 15: ...commanded to operate the MOTOR LED will be turned on and will flash each time instructions are sent to the motor 15 When the motor is commanded to stop the MOTOR LED will be turned off The MOTOR LED will not flash to indicate communications when it is turned off Fan coil control is constantly communicating with the motor even when the motor and MOTOR LED are off If motor does not acknowledge recei...

Page 16: ...cting wiring faults will clear the code and re establish communications Shorting or mis wiring the low voltage system wiring will not cause damage to unit control or to UI but may cause the low voltage fuse to open STATUS CODE 46 BROWNOUT CONDITION If the secondary voltage of the transformer falls below 15 vac for a period exceeding 4 seconds Status Code 46 will be displayed on STATUS LED and the ...

Page 17: ...r Ioad trip or start relay not releasing if installed Contactor Compressor voltage sensed when no demand for compressor op 73 eration exists Contactor may be stuck closed or there is a wiring Shorted error No 230V at 74 Compressor voltage not sensed when compressor should be start Compressor ing Contactor may be stuck open or there is a wiring error Low Stage Ther 81 Thermal cutout occurs in three...

Page 18: ...tage fan is off when outdoor coil temp is outdoor air temperature 3 F or outdoor fan has been ON for 30 minutes Fan is turned off to allow refrigerant system to stabilize In low stage fan is off when outdoor coil temp is outdoor air temperature 1 F or outdoor fan has been ON for 30 minutes Fan is turned off to allow refrigerant system to stabilize In high stage and low stage fan is on when outdoor...

Page 19: ...cated adjustment to the specified factory charge must always be very minimal If a substantial adjustment is indicated an abnormal condition exists somewhere in the cooling system such as insufficient airflow across either coil or both coils REFRIGERANT CHARGE The amount of refrigerant charge is listed on the unit rating plate and or the physical data table Refer to the Refrigeration Service Techni...

Page 20: ...R 410A Re uired Subcoofi F Re _ired Subcooling C Fressure Pressure Psig 5 10 15 25 kPal 3 6 8 14 174 56 51 46 36 181 59 54 49 39 188 61 56 51 41 195 63 58 53 43 202 65 60 55 45 209 67 62 57 47 216 69 64 59 49 223 71 66 61 51 189 61 56 51 41 196 53 58 53 43 203 66 61 56 46 210 68 63 58 48 217 70 65 60 50 224 72 57 62 52 231 74 69 64 54 238 76 71 56 56 245 77 72 67 57 252 79 74 69 59 260 81 76 71 61...

Page 21: ...15 20 kw 0 02 0 03 0 04 0 05 0 06 0 07 0 08 0 09 0 10 0 11 0 12 0 13 0 14 0 15 0 16 MAINTENANCE To ensure continuing high performance and to minimize the possibility of premature equipment failure periodic maintenance must be performed on this equipment This packaged air conditioner unit should be inspected at least once each year by a qualified service person To troubleshoot unit refer to Table 8...

Page 22: ...or wiring or air filter s If the drain trough is restricted clear it with a plumbers snake or similar probe device Step 4 Outdoor Fan UNIT OPERATION HAZARD Failure to follow this caution may result in damage to unit components Keep the condenser fan free from all obstructions to ensure proper cooling operation Never place articles on top of the unit 1 Remove 4 screws holding outdoor grille and mot...

Page 23: ...s the scroll from turning backwards and replaces the need for a cycle protector The pressure relief port is a safety device designed to protect against extreme high pressure The relief port has an operating range between 550 and 625 psi differential pressure The Copeland scroll compressor uses Mobil 3MA POE oil This is the only oil allowed for oil reehm ge Step ll Refrigerant System This step cove...

Page 24: ...failed the control will flash the appropriate fault code See Table 3 The control board should be replaced BROWN OUT PROTECTION If the line voltage is less than 187v for at least 4 seconds the appropriate compressor contactor and fan relay are de energized Compressor and fan operation are not allowed until voltage is a minimum of 190v The control will flash the appropriate fault code See Table 3 23...

Page 25: ...air sensor indicates 10 F cooler than the coil sensor the sensors are out of range If the sensors are out of range the control will flash the appropriate fault code as shown in Table 3 The thermistor comparison is not performed during low ambient cooling operation FAILED THERMISTOR DEFAULT OPERATION Factory defaults have been provided in the event of failure of outdoor air thermistor and or coil t...

Page 26: ...side with 520 psig low side retard Use hoses with 750 psig service pressure rating Leak detectors should be designed to detect HFC refrigerant Puron as with other HFCs is only compatible with POE oils Vacuum pumps will not remove moisture from oil Only use factory specified liquid line filter driers with rated working pressures no less than 600 psig Do not install a suction line filter drier in li...

Page 27: ...rsing valve Restriction in refrigerant system Dirty air filter Unit undersized far load U temperature set too low too high Law refrigerant charge Air in system Outdoor coil dirty er restricted Dirty air filter Dirty indoor or outdoor coil Refrigerant overcharged Air in system Heat Indeor air restricted er recirculating Indoor or outdoor air restricted or air short cycling Determine cause end corre...

Page 28: ...r restricted Blower wheel not secured to shaft Insufficient vo ts ge at motor Power connectors not properly sealed Ws ter dripping into motor Connectors not firmly sealed REMEDY Check for leaks repair and recharge Remove restriction Check for source s nd eliminate Replace valve Recover excess refrigerant Replace filter Check for leaks repair and recharge Remove source of restriction Increase air q...

Page 29: ...K FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING ORIFICE AND SETSCREW TIGHTNESS MAKE SURE THAT If Applicable ON 060 SIZE PURON HEATPUMP ONLY THE TWO WIRE TIES FASTEN TO THE OUTDOOR COILS AND REVERSING VALVE ACCUMULATOR HAVE BEEN REMOVED H START UP ELECTRmCAL SUPPLY VOLTAGE COMPRESSOR AMPS INDOOR EVAPORATOR FAN AMPS TEMPERATURES OUTDOOR CONDENSER AIR TEMPERATURE RETURN AIR TEMPERATURE COOLING SUPP...

Page 30: ...0 W Morris St Indianapolis iN 46231 Printed in USA edition date 03 07 Manufacturer reserves the right to change_ at any time_ specifications and designs without notice and without obligations Catalo_ No 50DT 3SI Replaces 50DT 2SI 3O ...