Carrier 50TJ016 Скачать руководство пользователя | Manualshive

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Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

PC 111

Catalog No. 535-034

Printed in U.S.A.

Form 50TJ-17SI

Pg CL-1

2-01

Replaces: 50TJ-14SI

Book

1

Tab

1b

Copyright 2001 Carrier Corporation

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START-UP CHECKLIST

PRE-START-UP:

VERIFY THAT ALL PACKING MATERIALS HAVE BEEN REMOVED FROM UNIT
VERIFY INSTALLATION OF INDOOR FAN MOTOR ADJUSTMENT BOLT (016 UNITS) OR ADJUSTMENT

BOLT AND PLATE (020-028 UNITS)

VERIFY INSTALLATION OF ECONOMI$ER HOOD
VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTRUCTIONS
VERIFY THAT ALL ELECTRICAL CONNECTIONS AND TERMINALS ARE TIGHT
CHECK THAT FILTERS AND SCREENS ARE CLEAN AND IN PLACE
VERIFY THAT UNIT IS LEVEL
CHECK FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE, AND VERIFY SETSCREW

IS TIGHT

VERIFY THAT FAN SHEAVES ARE ALIGNED AND BELTS ARE PROPERLY TENSIONED
VERIFY THAT SCROLL COMPRESSOR IS ROTATING IN THE CORRECT DIRECTION
VERIFY THAT CRANKCASE HEATER HAS BEEN ENERGIZED FOR 24 HOURS (SIZE 028 AND UNITS WITH

OPTIONAL MOISTUREMISER DEHUMIDIFICATION SYSTEM ONLY)

START-UP:

ELECTRICAL

SUPPLY FAN AMPS

EXHAUST FAN AMPS

TEMPERATURES

OUTDOOR-AIR TEMPERATURE

F DB (Dry-Bulb)

RETURN-AIR TEMPERATURE

F DB

F WB (Wet-Bulb)

COOLING SUPPLY AIR

F

ELECTRIC HEAT SUPPLY AIR (IF SO EQUIPPED)

F

PRESSURES

VERIFY REFRIGERANT CHARGE USING CHARGING CHART ON PAGE 28.

GENERAL

ECONOMI$ER MINIMUM VENT AND CHANGEOVER SETTINGS TO JOB REQUIREMENTS
VERIFY INSTALLATION OF ALL OPTIONS AND ACCESSORIES

MODEL NO.:

SERIAL NO.:

DATE:

TECHNICIAN:

SUPPLY VOLTAGE

L1-L2

L2-L3

L3-L1

COMPRESSOR AMPS — COMPRESSOR NO. 1

L1

L2

L3

— COMPRESSOR NO. 2

L1

L2

L3

ELECTRIC HEAT AMPS (IF SO EQUIPPED)

L1

L2

L31

REFRIGERANT SUCTION

CIRCUIT NO. 1

PSIG

CIRCUIT NO. 2

PSIG

REFRIGERANT DISCHARGE

CIRCUIT NO. 1

PSIG

CIRCUIT NO. 2

PSIG

«
...
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Содержание 50TJ016

Страница 1: ...f curb or horizontal adapter roof curb are shown in Fig 1 and 2 Install insulation cant strips roofing and counter flashing as shown Ductwork can be secured to roof curb before unit is set in place Curb or adapter roof curb should be level This is necessary to permit unit drain to function properly Unit leveling toler ance is 1 16 in per linear ft in any direction Refer to Accesso ry Roof Curb or ...

Страница 2: ... for units equipped with electric heaters NOTE To prevent the hazard of stagnant water build up in the drain pan of the indoor section unit can only be pitched as shown DIMENSIONS degrees and inches UNIT A B Deg in Deg in ALL 28 45 28 43 PKG NO REF CURB HEIGHT DESCRIPTION CRRFCURB010A00 1 2 305 Standard Curb 14 High CRRFCURB011A00 2 0 610 Standard Curb for Units Requiring High Installation CRRFCUR...

Страница 3: ...o rigging 4 Rig by inserting hooks into unit base rails as shown Use corner post from packaging to protect coil from damage Use bumper boards for spreader bars 5 Weights do not include optional EconoMi er See Fig 4 and 5 for EconoMi er weight See Table 1 for MoistureMiser weight 6 Weights given are for aluminum evaporator and condenser coil plate fins Fig 3 Rigging Details UNIT 50TJ MAXIMUM SHIPPI...

Страница 4: ...to be attached to accessory roof curb only 6 Minimum clearance Rear 7 0 2134 for coil removal This dimension can be reduced to 4 0 1219 if conditions permit coil removal from the top Left side 4 0 1219 for proper condenser coil airflow Front 4 0 1219 for control box access Right side 4 0 1219 for proper operation of damper and power exhaust if so equipped Top 6 0 1829 to assure proper condenser fa...

Страница 5: ...o be attached to accessory roof curb only 6 Minimum clearance Rear 7 0 2134 for coil removal This dimension can be reduced to 4 0 1219 if conditions permit coil removal from the top Left side 4 0 1219 for proper condenser coil airflow Front 4 0 1219 for control box access Right side 4 0 1219 for proper operation of damper and power exhaust if so equipped Top 6 0 1829 to assure proper condenser fan...

Страница 6: ...lt Nominal Cfm 6000 6000 7200 8000 10 000 Motor Hp 3 7 3 0 5 7 5 10 Motor Nominal Rpm 1725 1725 1745 1745 1740 Maximum Continuous Bhp 4 25 3 45 5 90 8 7 208 230 575 v 9 5 460 v 10 2 208 230 575 v 11 8 380 460 v Motor Frame Size 56H 56H 184T 213T 215T Nominal Rpm High Low Fan r s Range Low Medium Static 891 1179 1159 1429 910 1095 1002 1225 1066 1283 High Static 1227 1550 1069 1287 1193 1458 1332 1...

Страница 7: ...e and must be removed when unit is operating One 3 4 in half coupling is provided inside unit evaporator section for conden sate drain connection An 81 2 in x 3 4 in diameter nipple and a 2 in x 3 4 in diameter pipe nipple are coupled to standard 3 4 in diameter elbows to provide a straight path down through holes in unit base rails see Fig 10 A trap at least 4 in deep must be used For vertical su...

Страница 8: ...rature Route thermostat cable or equivalent single leads of no 18 AWG American Wire Gage colored wire from subbase termi nals through conduit in unit to low voltage connections as shown on unit label wiring diagram and in Fig 12 NOTE For wire runs up to 50 ft use no 18 AWG insulated wire 35 C minimum For 50 to 75 ft use no 16 AWG insu lated wire 35 C minimum For over 75 ft use no 14 AWG insulated ...

Страница 9: ... 0 5 1 7 5 0 15 8 15 8 87 87 110 110 4 6 18 8 92 92 110 110 26 34 71 82 109 122 110 125 4 6 18 8 26 34 71 82 114 128 125 150 42 56 117 135 166 155 175 175 4 8 18 8 42 56 117 135 172 161 175 175 56 75 156 180 176 200 200 225 4 6 18 8 56 75 156 180 182 206 200 225 460 414 508 15 5 114 14 7 95 3 0 5 0 8 5 0 7 9 44 50 2 3 6 0 47 60 32 39 59 60 2 3 6 0 32 39 61 70 55 66 76 90 2 3 6 0 55 66 79 90 80 96 ...

Страница 10: ...1 25 x IFM amps 1 00 x heater FLA UNIT 50TJ NOMINAL VOLTAGE 3 Ph 60 Hz VOLTAGE RANGE COMPRESSOR OFM IFM POWER EXHAUST ELECTRIC HEAT POWER SUPPLY No 1 No 2 Min Max RLA LRA RLA LRA Qty Hp FLA ea Hp FLA FLA LRA kW FLA MCA MOCP 028 25 Tons 208 230 187 253 41 0 350 37 8 239 2 1 6 6 10 0 28 0 28 0 130 130 150 150 4 6 18 8 135 135 175 175 26 34 71 82 130 138 150 150 4 6 18 8 26 34 71 82 135 143 175 175 4...

Страница 11: ...d close the door The handle should fit over the end of the shaft when the door is closed 8 The handle must be in the OFF position to open the con trol box door OPTIONAL CONVENIENCE OUTLET On units with optional convenience outlet a 115 v GFI ground fault inter rupt convenience outlet receptacle is provided for field wiring Field wiring should be run through the 7 8 in knockout pro vided in the bas...

Страница 12: ...N Perform the following procedure to install the out door air enthalpy sensor part no CROUTENT001A00 1 Remove the outdoor air temperature sensor cover See Fig 21 Save cover and screws 2 Disconnect the wiring from the installed outdoor air tem perature sensor See Fig 22 3 Use a 1 4 in nut driver to remove the 2 screws securing the outdoor air temperature sensor to the sheet metal 4 Mount the outdoo...

Страница 13: ... in the fan section of the unit The DAT is factory wired to the EconoMi er Control Module CO2 CONTROL SETUP If a CO2 sensor is not being used proceed to the next section If a CO2 sensor is being used perform the following 1 Determine the value at which you want the minimum position of the dampers to begin opening to allow a greater amount of outdoor air to enter The range is 800 to 1 400 ppm 2 Loc...

Страница 14: ...noMi er Switchover Control Strategy Must be selected manually Table 5 Changeover Set Points Field installed accessory Table 6 Default Potentiometer Settings ECONOMI ER SWITCHOVER STRATEGY SENSORS REQUIRED Outdoor Air Temperature Outdoor Air Enthalpy Return Air Temperature Return Air Enthalpy Dry Bulb X Single Enthalpy X Differential Temperature X X Differential Enthalpy X X SETTINGS A B C D Dry Bu...

Страница 15: ...ind Baffles Wind baffles must be field fabricated for all units to ensure proper cooling cycle operation at low ambient temperatures See Fig 25 for baffle details Use 20 gage galvanized sheet metal or similar corrosion resistant metal for baffles Use field supplied screws to attach baffles to unit Screws should be 1 4 in diameter and 5 8 in long Drill required screw holes for mounting baffles Outd...

Страница 16: ...ce outdoor fan motor no 1 with motor included in accessory kit Existing motor is not Motormaster III compatible Install Motormaster III Controls Only one Motormaster III control is required per unit Sensor Install the sensor for thermistor input control in the location shown in Fig 27 Connect sensor leads to the purple and grey control signal leads on the Motormaster III control Signal Selection S...

Страница 17: ...ION HAIRPIN END SENSOR LOCATION HAIRPIN END NOTE All sensors are located on the eighth hairpin up from the bottom Fig 27 Motormaster III Sensor Locations Fig 28 Typical MoistureMiser Dehumidification Package Humidistat Wiring Schematic 460V Unit Shown LEGEND LLSV Liquid Line Solenoid Valve LPS Low Pressure Switch TB Terminal Block TRAN Transformer 50TJ016 50TJ020 50TJ024 50TJ028 ...

Страница 18: ...and discharge 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 cooling After a few minutes of reverse operation the scroll com pressor internal overload protection will open which will acti vate the unit s lockout and requires a manual reset Reset is a...

Страница 19: ...m Bhp Watts Rpm Bhp Watts Rpm Bhp Watts 4500 684 1 28 1102 791 1 49 1283 887 1 70 1466 977 1 92 1652 1061 2 13 1841 1139 2 36 2034 4800 715 1 47 1265 817 1 68 1451 910 1 90 1638 997 2 12 1828 1078 2 34 2021 1155 2 57 2217 5100 747 1 67 1442 844 1 89 1633 934 2 12 1825 1018 2 34 2019 1097 2 57 2216 1171 2 80 2416 5400 779 1 90 1635 872 2 12 1831 959 2 35 2027 1040 2 58 2226 1117 2 81 2426 1189 3 05...

Страница 20: ...2441 965 3 22 2712 1027 3 56 2990 6 000 730 2 38 2005 802 2 68 2257 871 2 99 2516 935 3 31 2783 997 3 63 3057 1056 3 97 3337 6 500 778 2 82 2373 846 3 13 2630 911 3 44 2893 972 3 76 3164 1031 4 09 3440 1087 4 43 3722 7 000 828 3 31 2780 892 3 62 3042 953 3 94 3310 1011 4 26 3583 1067 4 59 3863 1121 4 93 4148 7 500 878 3 84 3227 938 4 15 3494 996 4 48 3766 1051 4 81 4043 1105 5 14 4326 1156 5 49 46...

Страница 21: ...883 1137 5 08 4 200 7 500 896 3 82 3156 956 4 17 3450 1014 4 54 3752 1069 4 91 4060 1123 5 29 4375 1174 5 68 4 698 8 000 948 4 43 3667 1005 4 80 3969 1060 5 17 4278 1112 5 56 4593 1163 5 94 4915 1213 6 34 5 243 8 500 1001 5 11 4226 1054 5 49 4537 1106 5 87 4853 1156 6 26 5175 1205 6 66 5504 1253 7 06 5 838 9 000 1053 5 85 4836 1104 6 23 5155 1154 6 63 5478 1202 7 02 5808 1248 7 43 6142 1294 7 84 6...

Страница 22: ...07 0 09 0 11 0 12 32 0 06 0 07 0 09 0 11 0 12 35 0 07 0 08 0 12 0 15 0 17 42 56 0 07 0 08 0 12 0 16 0 17 50 0 09 0 10 0 15 0 20 0 21 55 0 07 0 08 0 12 0 15 0 17 56 75 0 09 0 10 0 15 0 20 0 21 80 0 09 0 10 0 15 0 20 0 21 FIOP Factory Installed Option COMPONENT CFM 5400 6000 7200 9000 10 000 11 250 EconoMi er 0 06 0 07 0 09 0 11 0 12 0 14 Glycol Coil 0 30 0 35 0 44 0 58 0 66 0 77 Electric Heat kW 20...

Страница 23: ...il It detects frost build up and turns off the compressor allowing the coil to clear Once frost has melted the compressor can be reenergized by resetting the compressor lockout HEATING UNITS WITH ECONOMI ER If Accessory or Optional Heater is Installed When the room thermostat calls for heat the heating controls are energized as described in the Heating Units Without EconoMi er section The IFM is e...

Страница 24: ...perating conditions require Refer to Table 1 for type and size NOTE The 50TJ028 unit requires industrial grade throwaway filters capable of withstanding face velocities up to 625 fpm Ensure that replacement filters for the 50TJ028 units are rated for 625 fpm OUTDOOR AIR INLET SCREENS Clean screens with steam or hot water and a mild detergent Do not use throwaway filters in place of screens Lubrica...

Страница 25: ...on Adjustment section on page 26 To align fan and motor pulleys 1 Loosen fan pulley setscrews 2 Slide fan pulley along fan shaft 3 Make angular alignment by loosening motor from mounting plate Evaporator Fan Service and Replacement 50TJ016 UNITS See Fig 32 NOTE To remove belts only follow Steps 1 6 1 Remove filter and supply air section panels 2 Remove unit top panel 3 Loosen carriage nuts A and B...

Страница 26: ... 5 Tighten setscrews and replace panel s 6 Turn on unit power 50TJ024 028 UNITS Fig 35 1 Shut off unit power supply 2 Remove fan top grille assembly and loosen fan hub screws 3 Adjust fan height on unit using a straightedge placed across the fan orifice 4 Tighten setscrews and replace rubber hubcap to prevent hub from rusting to motor shaft 5 Fill hub recess with permagum if rubber hubcap is missi...

Страница 27: ...nd procedures Unit panels must be in place when unit is operating during charging procedure NOTE Do not use recycled refrigerant as it may contain con taminants NO CHARGE Use standard evacuating techniques After evacuating system weigh in the specified amount of refriger ant refer to Table 1 LOW CHARGE COOLING Using cooling charging chart see Fig 36 add or remove refrigerant until conditions of th...

Страница 28: ... PRESSURE SWITCHES If either switch trips or if the compressor overtemperature switch acti vates that refrigerant circuit will be automatically locked out by the CLO To reset manually move the thermostat setting FREEZE PROTECTION THERMOSTAT FPT An FPT is located on the top and bottom of the evaporator coil It de tects frost build up and turns off the compressor allowing the coil to clear Once the ...

Страница 29: ...29 Fig 37 Typical Wiring Schematic 50TJ024 208 230 3 60 Shown ELECTRIC HEAT 208 240 v Amps 200 230 v kW A 71 3 82 3 25 7 34 2 B 117 135 42 2 56 1 C 156 180 56 2 74 8 ...

Страница 30: ...30 Fig 37 Typical Wiring Schematic 50TJ024 208 230 3 60 Shown cont Fig 38 Typical Component Arrangement 50TJ024 Shown ...

Страница 31: ...r Terminal Marked Terminal Unmarked Terminal Block Splice Factory Wiring Field Control Wiring Option Accessory Wiring To indicate common potential only not to represent wiring NOTES 1 Compressor and fan motor s thermally protected 3 phase motors protected against primary single phasing conditions 2 If any of the original wire furnished must be replaced it must be replaced with type 90 C wire or it...

Страница 32: ...eplace Restriction in refrigerant system Locate restriction and remove Compressor operates continuously Dirty air filter Replace filter Unit undersized for load Decrease load or increase unit size Thermostat set too low Reset thermostat Low refrigerant charge Locate leak repair and recharge Air in system Recover refrigerant evacuate system and recharge Condenser coil dirty or restricted Clean coil...

Страница 33: ... MIN POS to 100 to verify operation and then set to correct setting EconoMi er Changeover Set Point Set Too High or Too Low Set at correct value See Table 5 Discharge Air Thermistor Faulty If STATUS light is flashing 4 flashes Discharge Air Thermistor is faulty Check wiring or replace sensor Outdoor Air Temperature Sensor Faulty If STATUS light is flashing 5 flashes Outdoor Air Temperature Sensor ...

Страница 34: ...d in this manual including Unit Familiarization Maintenance Installation Overview Operating Sequence A large selection of product theory and skills programs are available using popular video based formats and materials All include video and or slides plus companion book Classroom Service Training which includes hands on experience with the products in our labs can mean increased confidence that re...

Страница 35: ......

Страница 36: ...N IN HOUSING ORIFICE AND VERIFY SETSCREW IS TIGHT VERIFY THAT FAN SHEAVES ARE ALIGNED AND BELTS ARE PROPERLY TENSIONED VERIFY THAT SCROLL COMPRESSOR IS ROTATING IN THE CORRECT DIRECTION VERIFY THAT CRANKCASE HEATER HAS BEEN ENERGIZED FOR 24 HOURS SIZE 028 AND UNITS WITH OPTIONAL MOISTUREMISER DEHUMIDIFICATION SYSTEM ONLY START UP ELECTRICAL SUPPLY FAN AMPS EXHAUST FAN AMPS TEMPERATURES OUTDOOR AIR...

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