Carrier 50HJ015 Installation, Start-Up And Service Instructions Manual Download

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Summary of Contents for 50HJ015

Page 1: ...h for unbrazing operations Have fire extinguishers available for _dl brazing operations Before performing service or maintenance operations on unit turn off main power switch to unit Electrical shock...

Page 2: ...on the supply ductwork below the unit discharge for units equipped with electric heaters 7 To prevent the hazard of stagnant water build up in the drain pan of the indoor section unit can only be pitc...

Page 3: ...egligible For horizontal return applications The power exhaust and baro metric relief dampers must be installed in the return air duct T 14 3 4 6 FULLY INSULATED SUPPLY PLENUM _ 2 X 1 4 f_ 1 INSULATIO...

Page 4: ...not lie directly below unit discharge NOTE A 90 degree elbow must be provided in the ductwoN to comply with UL Underwritel_ Laboratories codes for use with electric heat SEE DETAIL 10 0 3048 DETAIL A...

Page 5: ...to print for roof curb accessory dimensions 2 Dimensions in are in millimeters 3 _ Center of Gravity E_ Direction of airflow 4 5 Ductwork to be attached to accessory roof curb only 6 Minimum clearanc...

Page 6: ...Pitch Diameter in Low Medium Static High Static Low Medium Static High Static Low Medium Static High Static Low Medium Static High Static Low Medium Static High Static Nominal Fan Shaft Diameter in B...

Page 7: ...trd 3 4 in dimneter elbows to provide a straight path down through holes in unit base rails see Fig 9 A trap at least 4 in deep must be used EVAPORATOR FAN MOTOR BAFFLE Shaded area indicates block off...

Page 8: ...ssembly according to the installation in structions included wifll the accessory Locate thermostat as sembly on a solid wall in the conditioned space to sense aver age temperature Route thermostat cab...

Page 9: ...0 43 50 32 39 59 60 2 3 6 0 32 39 62 70 55 66 76 90 2 3 6 0 55 66 79 90 80 96 106 128 2 3 6 0 80 96 109 125 31 40 2 1 4 8 34 40 LEGEND FLA Full Load Amps HACR Heating Air Conditioning and Refrigerati...

Page 10: ...nd the shaft can only be inserted in the correct orientation UNIT WIRING 6T3 4T2 2T1 LOAD 100 BLK YEL BLU AMP 1 I I INoN FUSED 0 sODNNEOT __L LIN J FIELD POWER SUPPLY 5L3 3L2 1L1 LINE UNIT WIRING 200...

Page 11: ...galvanized sheet metal or similm corrosion resistant metal for baffles Use field supplied screws to attach baffles to unit Screws should be I 4 in diameter and 5 8 in long Drill required screw holes...

Page 12: ...ostat or a CCN connection for time broadcast to initiate its internal timeclock This is necessary for broadcast of time of day functions occupied unoccupied No sensors are supplied with the field moun...

Page 13: ...rential Enthalpy Required Required with PremierLink Included 33CSENTHSW 33CSENTSEN PremierLink Not Used HH57ZC003 or requires 4 20 mA or HH57AC078 Actuator H H57AC077 PremierLink control requires supp...

Page 14: ...thermostat mode 1 TB2 terminal designations for 24 vac discrete inputs Default is for DDC control I posmoN0 LEN NO AC_ON POS_ON 1 CCN LOAD FACTORy DEFAULTS ON POWERUP OON L I RED II I _TH EFIELDTAT_ 2...

Page 15: ...ch as the outdoor air intt e The enthtdpy switchheceiver is not a NEMA 4 National Electrical Manufacturers Association enclosure and should be mounted in a location that is not exposed to outdoor elem...

Page 16: ...y sensor in a location where the indoor air can be sampled such as the return air duct The enthalpy sensor is not a NEMA 4 enclosure and should be mounted in a location that is not exposed to outdoor...

Page 17: ...utdoor air enth dpy sensor is part of the enthalpy control The separate field installed accessory return air enthalpy sensor HH57AC078 is required for differential enthalpy control NOTE The enthalpy c...

Page 18: ...OL AND OUTDOOR AIR ENTHALPY SENSOR HH57AC078 ENTHALPY SENSOR USED WITH ENTHALPY CONTROL FOR DIFFERENTIAL ENTHALPY OPERATION MOUNTING PLATE Fig 26 Differential Enthalpy Control Sensor and Mounting Plat...

Page 19: ...t Settings DCV Demand Controlled Ventilation Power Exhaust Middle IAQ Indoor Air Quality Minimum Poe Fully Closed DCV Max Middle LALS Low Temperature Compressor Lockout Switch DCV Set Middle OAT Outdo...

Page 20: ...s a 10 to 20 mA device used to measure file outdoor air temperature The outdoor air tempelature is used to determine when the EconoMiSer V can be used for free cooling The sensor must be field relocat...

Page 21: ...both 33ZCSENCO2 and 33ZCASPCO2 accessories Outdoor Dly Bulb Changeover The standard controller is shipped from the facto q configured for outdoor bulb changeover control The outdoor air and supply ai...

Page 22: ...in the return airstream or the EconoMiSerIV frame The EconoMiSerlV controller compmes the outdoor air enthalpy to file return air enthalpy to determine EconoMi erIV use The controller selects the lowe...

Page 23: ...imum amount of outdoor ail as required by local codes to enter the building Make minimum position adjustments with at least 10 F temperature difference between file outdoor and return air temperatures...

Page 24: ...ximum setting of the CO __sensor For ex ample a 1100 ppm set point relates to a 15 cfln per person de sign Use the 1100 ppm curve on Fig 37 to find the point when the CO2 sensor output will be 6 7 vol...

Page 25: ...1100 0 900 0 9999 0 2000 OPTIONAL RELAY SETPOINT ppm 1000 1000 1100 1100 900 1100 900 5000 700 RELAY HYSTERESIS ppm 50 50 50 50 50 50 50 50O 50 Step 11 Install Humidistat for Optional MoistureMi er TM...

Page 26: ...Transformer TO CRANKCASE HEATER CIRCUITS EL BLK BLK S LPS1 CB4 TB3 3 2 AMPS S LPS2 FACTOR OR HUMIDISTAT IF USED LLSV1 LLeV2_ BLK Fig 38 Typical MoistureMi er TM Dehumidification Package Humidistat Wir...

Page 27: ...R LIQUID OUTDOOR AiR EVAPORATOR COIL EQUALIZER LINE COIL 3 WAY VALVE TXV BULB S LPS j I SUB COOLER CONTROL LOW PRESSURE SWITCH I _oo_z_ _e _ _ L _xv INDOOR AIR LEGEND Thermostatic Expansion Valve Fig...

Page 28: ...rge pressure levels should now move to their normal start up levels NOTE When compressors are rotating in the wrong direction the unit will have increased noise levels and will not provide heating and...

Page 29: ...34 2 23 1027 2161 2 52 1089 2408 2 83 1148 2676 3 16 984 2102 2 44 1046 2339 2 74 1106 2596 3 06 1003 2276 2 66 1064 2524 2 97 1123 2790 3 29 1022 2457 2 89 1082 2717 3 21 1040 2646 3 12 LEGEND Bhp Br...

Page 30: ...00 1022 2457 2 89 1082 2717 3 21 1139 2990 3 53 1194 3280 5250 1040 2646 3 12 1099 2916 3 45 1154 3198 3 78 1208 3493 5500 1057 2843 3 36 1115 3124 3 69 1169 3412 4 03 _ f2 37 _ 2 5750 1074 3048 3 60...

Page 31: ...4101 4 81 1199 4412 5 18 1249 4728 5 55 1297 5050 5 92 1170 4431 5 20 1221 4749 5 57 1270 5072 5 95 1193 4781 5 61 1243 5107 5 99 AIRFLOW cfm 4500 4800 5100 5700 6000 6300 6600 6900 7200 7500 AVAILABL...

Page 32: ...then be used in conjunction with the Fan Performance table to deter mine blower rpm bhp and watts Table 16 MoistureMi er TM Dehumidification Package Static Pressure Drop in wg UNIT SIZE UNIT NOMINAL C...

Page 33: ...tain the proper supply air temperature HEATING UNITS WITH ECONOMISERIV When the room temperature calls for heat the heating controls are ener gized as described in the Heating Units Without Economizer...

Page 34: ...ontroller will modulate file economizer using an enor reduction calculation to hold the space temperature between the heating and cooling set points See Fig 42 The controller uses the following condit...

Page 35: ...ite the motor end has an extended tube line so it can be lubricated from the motor side Lubricate the bearings twice annu_dly Typical lubricants _ue given below MANUFACTURER LUBRICANT Texaco Regal AFB...

Page 36: ...12 To inst_dl the new motor reveLse Steps 1 11 MOTOR _ MOTOR UNIT TOP PANEL PULLEY D A FAN _ PULLEY FAN SCROLL SIDE PLATES DRAIN CONNECTION Fig 44 50HJ015 Evaporator Fan Motor Section FAN PULLEY_ CEN...

Page 37: ...The subcooler MUST be deenergized to use the charg ing charts The charts reference a liquid pressure psig and temperature at a point between the condenser coil and the sub cooler coil A tap is provid...

Page 38: ...rol box access The control box access door is interlocked with the non fused disconnect which must be in the OFF position to open the dool Two doors are provided for ac cess to the compressor comp_utm...

Page 39: ...3 453 1411188 7131823 2571342 117 135 42 2 561 _IELD 2eB1_30 3 6e _OWER SUPPLY SCHEMATIC L CT_IC_EAT OPTION S_E_L_ _IC YE _ H_3 YE LS c_ CLO_ I I I I I I I I J _ _4 I I I L _LJ _ct _rc ire Fig 48 Typi...

Page 40: ...mizer Motor Remote POT Field Accessory OAT Sensor Disch Air Sensor RAT Accessory Sensor Low Ambient Lockout Switch NOTES 1 Compressor and or fan motor s thermally protected three phase motors protecte...

Page 41: ...The actuator should drive to between 90 and 95 open 4 Turn the Exhaust potentiometer CW until the Exhaust LED turns off The LED should turn off when the potentiometer is approximately 90 The actuator...

Page 42: ...refrigerant charge or 1 Check charge amount See system charging frosted coil section 2 Evaporator coil frosted check and replace subcooler control low pressure switch if necessary REMEDY Check power...

Page 43: ...ssor Operates Dirty air filter Replace filter Continuously Unit undersized for load Decrease load or increase unit size Thermostat set too low Reset thermostat Low refrigerant charge Locate leak repai...

Page 44: ...Vac Occupied no power Unoccupied Modulation is based on the supply air sensor signal 1 tModulation is based on the DCV signal OUTPUTS N Terminalt Occupied Minimum position Modulating between rain pos...

Page 45: ...h 6 37 Hinged access door 38 Horizontal adapter roof curb 3 Humidistat 26 Indoor air quality sensor 12 Ix_w pressure switch 6 37 Manual outdoor air damper 10 MoistureMiSer TM dehumidification package...

Page 46: ...om Service Training which includes hands on experience with the products in our labs can mean increased confidence thai really pays dividends in faster troubleshooting and fewer callbacks Course descr...

Page 47: ......

Page 48: ...RICAL SUPPLY VOLTAGE COMPRESSOR AMPS COMPRESSOR NO 1 COMPRESSOR NO 2 LI L2 L2 L3 L3 LI LI L2 L3 LI L2 L3 SUPPLY FAN AMPS EXHAUST FAN AMPS ELECTRIC HEAT AMPS IF SO EQUIPPED Ll L2 L3 TEMPERATU RES OUTDO...

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Carrier 50HJ015, Installation, Start-Up And Service Instructions Manual

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