Carrier 50LC 07 Service And Maintenance Instructions Download Page 99

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START-UP CHECKLIST

I. PRELIMINARY INFORMATION

MODEL NO.:

SERIAL NO.:

DATE:

TECHNICIAN:

II. PRE-START-UP (insert checkmark in box as each item is completed)

VERIFY THAT JOBSITE VOLTAGE AGREES WITH VOLTAGE LISTED ON RATING PLATE

VERIFY THAT ALL PACKAGING MATERIALS HAVE BEEN REMOVED FROM UNIT

REMOVE ALL SHIPPING HOLD DOWN BOLTS AND BRACKETS PER INSTALLATION INSTRUCTIONS

VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS

VERIFY THAT FLUE HOOD IS INSTALLED

CHECK REFRIGERANT PIPING FOR INDICATIONS OF LEAKS; INVESTIGATE AND REPAIR IF NECESSARY

CHECK GAS PIPING FOR LEAKS

CHECK ALL ELECTRICAL CONNECTIONS AND TERMINALS FOR TIGHTNESS

CHECK THAT RETURN (INDOOR) AIR FILTERS ARE CLEAN AND IN PLACE

VERIFY THAT UNIT INSTALLATION IS LEVEL

CHECK FAN WHEELS AND PROPELLER FOR LOCATION IN HOUSING/ORIFICE AND SETSCREW

TIGHTNESS

CHECK TO ENSURE THAT ELECTRICAL WIRING IS NOT IN CONTACT WITH REFRIGERANT LINES

OR SHARP METAL EDGES

CHECK PULLEY ALIGNMENT AND BELT TENSION PER INSTALLATION INSTRUCTIONS

III. START-UP (REFER TO UNIT SERVICE/MAINTENANCE MANUAL FOR START--UP

INSTRUCTIONS)

ELECTRICAL

SUPPLY VOLTAGE

L1-L2

L2-L3

L3-L1

CIRCUIT 1 COMPRESSOR AMPS

CIRCUIT 2 COMPRESSOR AMPS

INDOOR-FAN AMPS
OUTDOOR-FAN AMPS

NO. 1

NO. 2

TEMPERATURES

OUTDOOR-AIR TEMPERATURE

RETURN-AIR TEMPERATURE

COOLING SUPPLY AIR

GAS HEAT SUPPLY AIR

PRESSURES (Cooling Mode)

GAS INLET PRESSURE

IN. WG

GAS MANIFOLD PRESSURE

IN. WG (LOW FIRE)

IN. WG (HI FIRE)

REFRIGERANT SUCTION, CIRCUIT 1

PSIG

REFRIGERANT SUCTION, CIRCUIT 2

PSIG

REFRIGERANT DISCHARGE, CIRCUIT 1

PSIG

REFRIGERANT DISCHARGE, CIRCUIT 2

PSIG

VERIFY THAT 3-PHASE FAN MOTOR AND BLOWER ARE ROTATING IN CORRECT DIRECTION.

VERIFY THAT 3-PHASE SCROLL COMPRESSOR IS ROTATING IN THE CORRECT DIRECTION

VERIFY REFRIGERANT CHARGE USING CHARGING CHARTS

GENERAL

SET ECONOMIZER MINIMUM VENT AND CHANGEOVER SETTINGS TO MATCH JOB REQUIREMENTS

(IF EQUIPPED)

Summary of Contents for 50LC 07

Page 1: ...nditioning equipment observe precautions in the literature tags and labels attached to the unit and other safety precautions that may apply Follow all safety codes Wear safety glasses and work gloves Use quenching cloth for unbrazing operations Have fire extinguishers available for all brazing operations Follow all safety codes Wear safety glasses and work gloves Use quenching cloth for brazing op...

Page 2: ...ate protective clothing safety glasses and gloves when handling parts and servicing air conditioning units CAUTION UNIT ARRANGEMENT AND ACCESS General Fig 1 and Fig 2 show general unit arrangement and access locations FILTER ACCESS PANEL INDOOR COIL ACCESS PANEL C08449 Fig 1 Typical Access Panel Locations Rear BLOWER ACCESS PANEL CONTROL BOX COMPRESSOR C09243 Fig 2 Typical Access Panel Locations F...

Page 3: ... lower panel or economizer top IMPORTANT DO NOT OPERATE THE UNIT WITHOUT THESE FILTERS Outside Air Hood Outside air hood inlet screens are permanent aluminum mesh type filters Check these for cleanliness Remove the screens when cleaning is required Clean by washing with hot low pressure water and soft detergent and replace all screens before restarting the unit Observe the flow direction arrows on...

Page 4: ...ting the old belt over one of the pulleys 5 Install the new belt by gently sliding the belt over both pulleys and then sliding the motor and plate away from the fan housing until proper tension is achieved 6 Check the alignment of the pulleys adjust if necessary 7 Tighten all bolts 8 Check the tension after a few hours of runtime and re adjust as required Adjustable Pitch Pulley on Motor The motor...

Page 5: ...efrigerant may be used in this system Gauge set hoses and recovery system must be designed to handle Puron refrigerant If unsure about equipment consult the equipment manufacturer WARNING Evaporator Coil The evaporator coil is traditional round tube plate fin technology Tube and fin construction is of various optional materials and coatings see Model Number Format Coils are multiple row Coil Maint...

Page 6: ...careful not to bend fins 4 Mix Totaline environmentally sound coil cleaner in a 2 1 2 gallon garden sprayer according to the instructions included with the cleaner The optimum solution temperature is 100 F 38 C NOTE Do NOT USE water in excess of 130 F 54 C as the enzymatic activity will be destroyed 5 Thoroughly apply Totaline environmentally sound coil cleaner solution to all coil surfaces includ...

Page 7: ...RH 30 0 596 47 5 8 HEX SEAT CORE WASHER DEPRESSOR PER ARI 720 01 035 FROM FACE OF BODY 7 16 20 UNF RH O RING 45 torqued into the seat Appropriate handling is required to not scratch or dent the surface 1 2 HEX This surface provides a metal to metal seal when o o Part No EC39EZ067 C08453 Fig 8 CoreMax Access Port Assembly Low Charge Cooling Using Cooling Charging Charts Figs 9 10 11 and 12 vary ref...

Page 8: ...y hygroscopic meaning it absorbs water readily POE oils can absorb 15 times as much water as other oils designed for HCFC and CFC refrigerants Avoid exposure of the oil to the atmosphere CAUTION Replacing Compressor The compressor used with Puron refrigerant contains a POE oil This oil has a high affinity for moisture Do not remove the compressor s tube plugs until ready to insert the unit suction...

Page 9: ...9 COOLING CHARGING CHARTS C150169 Fig 9 Cooling Charging Charts 07 ...

Page 10: ...10 COOLING CHARGING CHARTS C150172 Fig 10 Cooling Charging Charts 08 ...

Page 11: ...11 COOLING CHARGING CHARTS C150170 Fig 11 Cooling Charging Charts 09 ...

Page 12: ...12 COOLING CHARGING CHARTS C150171 Fig 12 Cooling Charging Charts 12 ...

Page 13: ...rge pressure levels should now move to their normal start up levels NOTE When the compressor is rotating in the wrong direction the unit makes an elevated level of noise and does not provide cooling Filter Drier Replace whenever refrigerant system is exposed to atmosphere Only use factory specified liquid line filter driers with working pressures no less than 650 psig Do not install a suction line...

Page 14: ...striction 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 Leaking valves in compressor Replace compressor Air in system Recover refrigerant evacuate system and recharge Condenser coil dirty or restricted Clean coil o...

Page 15: ...eyhole slots and align with the gasket Tighten the two screws until snug do not over tighten 5 Mount the weatherproof cover to the backing plate as shown in Fig 15 COVER WHILE IN USE WEATHERPROOF BASE PLATE FOR GFCI RECEPTACLE C09244 Fig 15 Weatherproof Cover Installation 6 Remove two slot fillers in the bottom of the cover to permit service tool cords to exit the cover 7 Check for full closing an...

Page 16: ...le 210 Branch Circuits for use of convenience outlets SMOKE DETECTORS Smoke detectors are available as factory installed options on 50LC models Smoke detectors may be specified for Supply Air only or for Return Air without or with economizer or in combination of Supply Air and Return Air Return Air smoke detectors are arranged for vertical return configurations only All components necessary for op...

Page 17: ... controller automatically takes the appropriate action to shut down fans and blowers change over air handling systems notify the fire alarm control panel etc The sensor uses a process called differential sensing to prevent gradual environmental changes from triggering false alarms A rapid change in environmental conditions such as smoke from a fire causes the sensor to signal an alarm state but du...

Page 18: ...detector plate See Fig 22 Save the screws 2 Remove the Return Air Sensor and its detector plate 3 Rotate the detector plate so the sensor is facing outwards and the sampling tube connection is on the bottom See Fig 23 4 Screw the sensor and detector plate into its operating position using screws from Step 1 Make sure the sampling tube connection is on the bottom and the exhaust tube is on the top ...

Page 19: ...ed to a fire alarm system notify the proper authorities before performing the test CAUTION Sensor Alarm Test Procedure 1 Hold the test magnet where indicated on the side of the sensor housing for seven seconds 2 Verify that the sensor s Alarm LED turns on 3 Reset the sensor by holding the test magnet against the sensor housing for two seconds 4 Verify that the sensor s Alarm LED turns off Controll...

Page 20: ...into the alarm state and activate all automatic alarm responses Before changing dirty sensor test operation disconnect all auxiliary equipment from the controller and notify the proper authorities if connected to a fire alarm system CAUTION Changing the Dirty Sensor Test By default sensor dirty test results are indicated by S The sensor s Dirty LED flashing S The controller s Trouble LED flashing ...

Page 21: ...Test Using an SD TRK4 1 Turn the key switch to the RESET TEST position for two seconds 2 Verify that the test reset station s Trouble LED flashes Detector Cleaning Cleaning the Smoke Detector Clean the duct smoke sensor when the Dirty LED is flashing continuously or sooner if conditions warrant OPERATIONAL TEST HAZARD Failure to follow this caution may result in personnel and authority concern If ...

Page 22: ...ns See Fig 27 S If a sensor trouble the sensor s Trouble LED the controller s Trouble LED turn on S If 100 dirty the sensor s Dirty LED turns on and the controller s Trouble LED flashes continuously S If a wiring fault between a sensor and the controller the controller s Trouble LED turns on but not the sensor s Alarm Power Test reset switch Trouble C07298 Fig 27 Controller Assembly NOTE All troub...

Page 23: ...ercurrent protection device The type of device depends on the motor size See Table 4 Table 4 Supply Fan Motor Protection Devices Motor Size bhp Overload Device Reset 1 7 Internal linebreak Automatic 2 4 Internal linebreak Automatic 2 9 Thermik Automatic 3 7 Thermik Automatic 5 2 External circuit breaker Manual The Internal Linebreak type is an imbedded switch that senses both motor current and int...

Page 24: ...age part number NOTE The value in position 9 of the part number differs between the sales package part number value is 1 and a bare heater model number value is 0 DISCONNECT MOUNTING LOCATION EMT OR RIGID CONDUIT FIELD SUPPLIED SINGLE POINT BOX CENTER POST HEATER COVERS HEATER MOUNTING BRACKET HEATER MODULE LOCATION 2 HEATER MODULE LOCATION 1 SINGLE POINT BOX MOUNTING SCREW BRACKET AND CONDUIT DRI...

Page 25: ...n the Single Point Box and the unit s main control box terminals Refer to accessory heater and Single Point Box installation instructions for details on tap connections Safety Devices Electric heater applications use a combination of line break auto reset limit switches and a pilot circuit manual reset limit switch to protect the unit against over temperature situations Line break auto reset limit...

Page 26: ...n Position 1 HR2 On Heater 2 in Position 2 if installed 2 3 12 1 3 VIO ORN VIO BRN VIO BRN BRN VIO 2 TB4 VIO HR2 HR1 BRN VIO BRN Elec Htr C08331 Fig 33 Accessory Electric Heater Control Connections WIRING DIAGRAMS See Figs 34 through 40 for typical wiring diagrams ...

Page 27: ...27 C150181 Fig 34 50LC 07 Control Wiring Diagram ...

Page 28: ...28 C150225 Fig 35 50LC 07 RTU Open Control Wiring Diagram ...

Page 29: ...29 C14095 Fig 36 50LC 07 Power Wiring Diagram 208 230V 460V and 575V Units ...

Page 30: ...30 C14013 Fig 37 50LC 08 12 Control Wiring Diagram ...

Page 31: ...31 C14104 Fig 38 50LC 08 12 RTU Open Control Wiring Diagram ...

Page 32: ...32 C14105 Fig 39 50LC 08 12 Power Wiring Diagram 208 230V Units ...

Page 33: ...33 C150216 Fig 40 50LC 08 12 Power Wiring Diagram 460V 575V Units ...

Page 34: ...rol box at this hole Units Without Thru Base Connections 1 Install power wiring conduit through side panel openings Install conduit between disconnect and control box 2 Install power lines to terminal connections as shown in Fig NO TAG Field Control Wiring The 50LC unit requires an external temperature control device such as a thermostat field supplied Thermostat Install a Carrier approved accesso...

Page 35: ...e heaters are modular in design with heater frames holding open coil resistance wires strung through ceramic insulators line break limit switches and a control contactor One or two heater modules may be used in a unit Heater modules are installed in the compartment below the indoor supply fan outlet Access is through the indoor access panel Heater modules slide into the compartment on tracks along...

Page 36: ...only 60 A fuses are necessary Single Point Boxes without Fuses Some unit heater applications not requiring supplemental fuses require a special Single Point Box without any fuses The accessory Single Point Boxes contain a set of power taps and pigtails to complete the wiring between the Single Point Box and the unit s main control box terminals Refer to accessory heater and Single Point Box instal...

Page 37: ...lights The Red LED light configuration will indicate the type of error the board has identified See Fig 50 for LED locations and Table 7 for a list of status codes The ISC board can be remotely shutdown by removing Jumper 4 and wiring to the Remote Shutdown terminal The Smoke Control Module can shutdown the unit by removing Jumper 3 and wiring to the Smoke Shutdown terminal The Smoke Alarm termina...

Page 38: ...control Upon more call for cooling Y2 on the thermostat the outdoor air damper will maintain its current position compressor C1 will run and the outdoor fan will run at low speed If there is further demand for cooling the outdoor air damper will maintain its current position compressor C2 will run and the outdoor fan will run at medium speed The VFD controlled indoor fan will operate at high speed...

Page 39: ...drive damper actuator with local equipment bus communications S W7220 economizer controller with keypad and display S Supply Air Temperature sensor 20K ohm S Outdoor changeover condition sensor either 20K ohm dry bulb or enthalpy sensor Unit Installation All damper hardware and standard economizer control components except the enthalpy sensor are factory mounted in their operating location Complet...

Page 40: ...sing the Keypad with Settings and Parameters To use the keypad when working with Setpoints System and Advanced Settings Checkout tests and Alarms 3 Navigate to the desired menu 4 Press the Enter button to display the first item in the currently displayed menu 5 Use the and buttons to scroll to the desired parameter 6 Press the Enter button to display the value of the currently displayed item 7 Pre...

Page 41: ... Heating section Accessory sensor required Displays when Discharge Air sensor is connected and displays measured discharge temperature Displays if sensor sends invalid value if not connected short or out of range OA TEMP nn_F or _C 40 to 140_F 40 to 60_C OUTSIDE AIR TEMPERATRUE Displays measured value of outdoor air temperature Displays if sensor sends invalid value if not connected short or out o...

Page 42: ... 1100ppm 500 to 2000 ppm increment by 100 DEMAND CONTROL VENTILATION SETPOINT Displays only if CO2 sensor is connected Setpoint for Demand Control Ventilation of space Above the setpoint the OA dampers will modulate open to bring in additional OA to maintain a space ppm level below the setpoint MIN POS L 6 0 V 2 to 10 Vdc VENTILATION MINIMUM POSITION AT LOW SPEED Displays ONLY if a CO2 sensor is N...

Page 43: ...on close damper and alarm if temperature falls below setup value FREEZE POS CLO CLO or MIN FREEZE PROTECTION DAMPER POSITION Damper position when freeze protection is active CLO closed MIN MIN POS or VENTMAX CO2 ZERO 0ppm 0 to 500 ppm Increment by 10 CO2 ppm level to match CO2 Sensor start level CO2 SPAN 2000ppm 1000 to 3000 ppm Increment by 50 CO2 ppm span to match CO2 sensor STG3 DLY 2 0h 0 min ...

Page 44: ... above expected range ACT STALLED n a n a ACTUATOR STALLED Actuator stopped before reaching commanded position a Table 9 illustrates the complete hierarchy your menu parameters may be different depending on your configuration For example if you do not have a DCV CO2 sensor then none of the DCV parameters appear b When values are displayed pressing and holding the Y or B button causes the display t...

Page 45: ...e ACT 2 10 2 10 Vdc Damper Actuator Output 2 10 Vdc ACT COM COM Damper Actuator Output Common ACT 24V 24 Vac Damper Actuator 24 Vac Source Table 11 Economizer Module Right Hand Terminal Blocks Label Type Description Top Right Terminal Block n a The first terminal is not used AUX2 I 24 Vac IN Input from Thermostat W1 indicating base unit is in Heat mode damper controls to High Fan Speed setpoints O...

Page 46: ...UX E GND Y2 1 Y1 1 Y1 0 C R Y2 0 W7220 CONTROLlER W1 BLUE GRAY 1 2 3 4 ECONO ACTUATOR ENTHALPY SENSOR 1 2 C12166 Fig 56 Actuator S BUS Economizer Control Configurations Enthalpy Changeover Control Economizer changeover based on outdoor air enthalpy requires an outdoor air enthalpy sensor to replace the OAT sensor The enthalpy sensor is available as a factory installed option or as a field installe...

Page 47: ...cal cooling energized and HL high limit when a compressor stage is energized Table 12 provides the values for each boundary limit TEMPERATURE ENTHALPY RA TEMP ABSOLUTE HUMIDITY ECONOMIXING AVAILABLE NOT AVAILABLE ES5 ES4 ES3 ES2 ES1 HL DUAL ENTHALPY HIGH LIMIT SINGLE ENTHALPY P2 T RH P1 T RH RA HUM RH C12015 Fig 57 Single Enthalpy Curve and Boundaries Table 12 Single Enthalpy and Dual Enthalpy Hig...

Page 48: ...wo Speed Fan System Ventilation codes require that the same ventilation rates Vbz and Va expressed as CFM be provided regardless of supply fan speed When the supply fan speed is reduced the internal static pressure in the unit s return plenum also decreases If the same outside air damper position is retained the airflow rate through the OA damper decreases below the Va and Vbz levels To restore ve...

Page 49: ...ET defines the space CO2 level above which the DCV mode begins to open the outside air damper beyond its VENTMIN ventilation lower limit This setpoint should be a minimum of 100 ppm greater than the outdoor ambient CO2 level to ensure the outside air will be capable of diluting the space CO2 level A typical value for outdoor CO2 is 400 ppm adjust the setpoint DCV SET to 500 ppm if outdoor CO2 leve...

Page 50: ...condition immediately No economizing operation will be permitted until this alarm is cleared Table 14 SAT OAT Sensor Characteristics Deg C Ohms Deg F Ohms 30 415156 20 386130 25 301540 0 193070 20 221210 20 101820 15 163834 32 70200 10 122453 40 55420 5 92382 45 47771 0 70200 50 41258 5 53806 55 35725 10 41561 60 31035 15 32341 65 27069 20 25346 70 23719 25 20000 77 20000 30 15886 80 18473 35 1269...

Page 51: ...ensor connected The supply fan speed is included in these tables for reference this is neither an input or output of the W7220 controller Base Unit Controls Base unit includes standard electromechanical controls Staged Air Volume 3 speed supply fan motor with VFD EconoMi er X with W7220 controller and thermostat or unitary controller that energizes the G terminal in cooling and heating to control ...

Page 52: ...air damper open and closed to maintain the unit cooling supply air temperature at setpoint MAT SET default 53_F 12_C Compressor will not run During free cooling operation a supply air temperature SAT above MAT SET will cause the outside air damper to modulate between MIN POS L setpoint and 100 open As SAT decreases and approaches setpoint MA LO SET default 45_F 7_C the outside air damper will main...

Page 53: ...perature continues to fall and space cooling load is satisfied the thermostat will remove its call for first stage cooling ISC terminal Y1 call is removed The W7220 input Y1 I is removed free cooling mode ends Outside air damper will remain at MIN POS L if supply fan remains in operation CONT FAN or to closed if supply fan stops AUTO FAN Should 100 outside air and second stage cooling Compressor 1...

Page 54: ...uration involves stepping through three menus and enabling required functions and re selecting setpoints to meet project requirements The menus used are SYSTEM SETUP ADV SETUP and SETPOINTS Obtain a copy of the project control specifications before starting setup and configuration process NOTE W7220 will be in the set up mode for the first 60 minutes after powered If a sensor for OA air or S bus d...

Page 55: ...eed fan system are correct Troubleshooting Power Up Delay Upon power up or after a power outage or brownout the W7220 controller module begins a 5 minute power up delay before enabling mechanical cooling Power Loss Outage or Brownout All setpoints and advanced settings are restored after any power loss or interruption NOTE If the power goes below 18 Vac the W7220 controller module assumes a power ...

Page 56: ... control is to default to the temperature sensor in the enthalpy sensor In checkout the outdoor damper closes when i command it to open Check the actuator linkage or rotation In the CHECKOUT mode the outdoor damper should drive open or closed with the return air damper having the opposite effect How do I set my minimum position The minimum position is set using the VENTMIN and VENTMAX setup in the...

Page 57: ...57 C13683 Fig 62 Typical EconoMi er X Wiring Diagram ...

Page 58: ...operation of 1 speed or 2 speed indoor fan system See Menu Note 4 on page 44 FAN CFM 5000cfm 100 to 15000 cfm UNIT DESIGN AIRFLOW CFM Enter ONLY if using DCVCAL ENA AUTO The value is found in the Project Submittal documents for the specific RTU AUX OUT NONE NONE ERV EXH2 SYS Select OUTPUT for AUX1 O relay NONE not configured output is not used ERV Energy Recovery Ventilator EXH2 second damper posi...

Page 59: ... CAL 0 0 1 0_F or _C 2 5_F 1 4_C SUPPLY AIR TEMPERATURE CALIBRATION Allows for the operator to adjust for an out of calibration supply air temperature SAT sensor OA T CAL 2 0 3 0_F or _C 2 5_F 1 4_C OUTSIDE AIR TEMPERATURE CALIBRATION Allows for the operator to adjust for an out of calibration outside air temperature OAT sensor OA H CAL 0 RH 10 RH OUTSIDE AIR HUMIDITY CALIBRATION Allows for the op...

Page 60: ...c DCV MAXIMUM DAMPER POSITION AT HIGH SPEED Requires CO2 sensor connected VENTMIN L 3 7 V 2 to 10Vdc DCV MINIMUM DAMPER POSITION AT LOW SPEED Requires CO2 sensor connected VENTMIN H 2 8 V 2 to 10Vdc DCV MINIMUM DAMPER POSITION AT HIGH SPEED Requires CO2 sensor connected ERV OAT SP 32_F 0_C 0 to 50_F 18 to 10_C increment by 1_ ENERGY RECOVERY VENTILATION UNIT OUTDOOR AIR TEMPERATURE SETPOINT Only w...

Page 61: ...ve VFD Filter used on 575V units only C13229 Fig 65 VFD Location 08 12 Units Multi Speed VFD Display Kit Field Installed Option NOTE The Remote VFD Keypad is part of the Multi Speed VFD display kit PN CRDISKIT002A00 which is a field installed option It is not included with the 50LC 07 base unit The VFD keypad as shown in Fig 66 consists of the following sections ...

Page 62: ... 7 C13114 1 Com LED Flashes when bus communications is communicating 2 Green LED On Control selection is working 3 Yellow LED Warn Indicates a warning 4 Flashing Red LED Alarm Indicates an alarm 5 Arrows YB Use the Up and Down arrow keys to navigate between parameter groups parameters and within parameters Also used for setting local reference 6 Back key Press to move to the previous step or layer...

Page 63: ...variable frequency drive Use 2 of the screws included with the kit to secure the cable to the VFD 2 Connect the female end of the cable to the back panel of the VFD Remote keypad Secure the cable to the remote keypad using the 2 remaining screws from the kit Program the VFD for 3 Discrete Indoor Fan Speeds IMPORTANT 50LC 07 units are programmed at the Factory for 3 discrete indoor fan speeds The f...

Page 64: ... at Step 4 3 Clearing Alarm 060 External Interlock a Press the Menu key twice to position the B tri angle icon over Main Menu the display changes to 0 Operation Display 1 Load and Motor b Press the B Down Arrow key until the follow ing display appears 4 Limits Warnings 5 Digital In Out c Press OK The display changes to 5 0 Digital I O mode 5 1 Digital Inputs d Press B Down Arrow once to highlight ...

Page 65: ...greater than the nameplate value Check the VFD Unit Parameters see Table 21 on page NO TAG and use the value listed for the given unit in the column labeled Motor Current Must Hold Amps m Press B Down Arrow once to display the following 1 25 Motor Nominal Speed 1740rpm n Press OK to highlight the rpm value and then use the Y and B Up and Down Arrow keys to select the nameplate rpm Press OK again t...

Page 66: ...E If the bottom row displays a number other than 60 000 press OK and use the Y and B Up and Down Arrow key to select 60 000 f Press the Back key until the following display appears 3 0 Reference Limits 3 1 References g Press B Down Arrow once to move the high light to the bottom row and then press OK The following display appears 3 10 Preset Reference 0 0 00 h Press OK once to highlight the number...

Page 67: ... Hz value and then use the Y and B Up and Down Arrow keys to enter the required values 10 Setting Digital Inputs a Press the Back key until the following display appears 3 Reference Ramps 4 Limits Warnings b Press B Down Arrow once the following display appears 4 Limits Warnings 5 Digital In Out c Press OK the following display appears 5 0 Digital I O mode 5 1 Digital Inputs d Press B Down Arrow o...

Page 68: ...umber of seconds and use the Y and B Up and Down Arrow keys to select 600 seconds Press OK again to set the selected value j Press the Back key once the following display appears 14 1 Mains On Off 14 2 Reset Functions k Press B Down Arrow twice the following display appears 14 4 Energy Optimising 14 5 Environment l Press OK the following display appears 14 50 RFI Filter 1 On m Press OK to highligh...

Page 69: ...2 1735 2 0 1 1 0 4 0 66 50 66 50 575V 07 HIGH HD58FE577 HK30WA383 131N0227 1 132 11 575 60 4 9 1710 2 0 1 1 0 4 0 66 50 66 50 Preset Reference cont Ramp Up Time Sec Ramp Down Time Sec Current Limit Terminal 18 Digital Input Terminal 19 Digital Input Terminal 27 Digital Input Terminal 29 Digital Input Reset Mode Auto Restart Time S RFI Filter Voltage Unit Size Motor Option Motor P N VFD Carrier P N...

Page 70: ... 5 4 1750 2 0 1 1 0 4 0 66 50 66 50 575V 08 ULTRA HD58FE577 HK30WA383 131N0227 1 132 11 575 60 4 9 1710 2 0 1 1 0 4 0 66 50 66 50 Preset Reference cont Ramp Up Time Sec Ramp Down Time Sec Current Limit Terminal 18 Digital Input Terminal 19 Digital Input Terminal 27 Digital Input Terminal 29 Digital Input Reset Mode Auto Restart Time S RFI Filter Voltage Unit Size Motor Option Motor P N VFD Carrier...

Page 71: ... 6 8 1745 2 0 1 1 0 4 0 66 50 66 50 575V 09 ULTRA HD60FE576 HK30WA387 134F0217 1 132 13 575 60 6 0 1745 2 0 1 1 0 4 0 66 50 66 50 Preset Reference cont Ramp Up Time Sec Ramp Down Time Sec Current Limit Terminal 18 Digital Input Terminal 19 Digital Input Terminal 27 Digital Input Terminal 29 Digital Input Reset Mode Auto Restart Time S RFI Filter Voltage Unit Size Motor Option Motor P N VFD Carrier...

Page 72: ...0 6 8 1745 2 0 1 1 0 4 0 66 50 66 50 575V 12 HIGH HD60FE576 HK30WA387 134F0217 1 132 13 575 60 6 0 1745 2 0 1 1 0 4 0 66 50 66 50 Preset Reference cont Ramp Up Time Sec Ramp Down Time Sec Current Limit Terminal 18 Digital Input Terminal 19 Digital Input Terminal 27 Digital Input Terminal 29 Digital Input Reset Mode Auto Restart Time S RFI Filter Voltage Unit Size Motor Option Motor P N VFD Carrier...

Page 73: ...03 203 41 40 50 50 43 42 207 207 42 41 50 50 44 43 208 208 46 45 50 50 49 48 212 212 110A 12 0 16 0 33 4 38 5 53 58 60 60 48 53 203 203 58 63 60 70 53 58 207 207 59 64 60 70 54 59 208 208 64 69 70 70 58 63 212 212 111A 18 6 24 8 51 7 59 7 76 85 80 90 69 78 203 203 81 90 90 90 74 82 207 207 82 91 90 100 75 83 208 208 87 96 90 100 79 88 212 212 460 3 60 STD NONE 20 25 20 87 21 25 22 89 22 25 23 89 2...

Page 74: ... 47 46 60 50 50 48 254 254 51 50 60 60 54 53 258 258 52 51 60 60 55 54 259 259 56 55 60 60 59 58 263 263 291A 12 4 16 5 34 4 39 7 57 62 60 70 52 57 254 254 62 67 70 70 56 61 258 258 63 68 70 70 58 62 259 259 68 73 70 80 62 67 263 263 294A 25 2 33 5 69 9 80 6 101 113 110 125 93 104 254 254 106 118 110 125 97 108 258 258 107 119 110 125 98 109 259 259 112 124 125 125 103 114 263 263 460 3 60 STD NON...

Page 75: ... 60 55 54 292 292 56 55 60 60 60 59 296 296 57 56 70 60 61 60 297 297 61 60 70 70 65 64 301 301 291A 12 4 16 5 34 4 39 7 60 66 60 70 55 60 292 292 65 71 70 80 60 65 296 296 66 72 70 80 61 66 297 297 71 77 80 80 65 70 301 301 294A 25 2 33 5 69 9 80 6 105 117 110 125 96 107 292 292 110 122 110 125 100 112 296 296 111 123 125 125 102 113 297 297 116 128 125 150 106 117 301 301 460 3 60 STD NONE 24 30...

Page 76: ... 66 72 80 80 65 66 318 318 71 77 80 80 69 70 322 322 294A 25 2 33 5 69 9 80 6 105 117 110 125 96 107 313 313 110 122 110 125 100 112 317 317 111 123 125 125 102 113 318 318 116 128 125 150 106 117 322 322 291A 294A 37 6 50 0 104 3 120 3 148 137 150 150 136 153 313 313 153 141 175 175 140 157 317 317 154 143 175 175 141 158 318 318 159 147 175 175 145 163 322 322 460 3 60 STD NONE 26 30 27 126 28 3...

Page 77: ...0 43 42 207 207 42 42 50 50 44 43 208 208 46 46 50 50 49 48 212 212 110A 12 0 16 0 33 4 38 5 58 58 60 60 48 53 203 203 63 63 70 70 53 58 207 207 64 64 70 70 54 59 208 208 69 69 70 70 58 63 212 212 111A 18 6 24 8 51 7 59 7 85 85 90 90 69 78 203 203 90 90 90 90 74 82 207 207 91 91 100 100 75 83 208 208 96 96 100 100 79 88 212 212 460 3 60 STD NONE 20 25 20 87 21 25 22 89 22 25 23 89 24 25 25 91 265A...

Page 78: ... 48 254 254 51 51 60 60 54 53 258 258 52 52 60 60 55 54 259 259 56 56 60 60 59 58 263 263 291A 12 4 16 5 34 4 39 7 62 62 70 70 52 57 254 254 67 67 70 70 56 61 258 258 68 68 70 70 58 62 259 259 73 73 80 80 62 67 263 263 294A 25 2 33 5 69 9 80 6 113 113 125 125 93 104 254 254 118 118 125 125 97 108 258 258 119 119 125 125 98 109 259 259 124 124 125 125 103 114 263 263 460 3 60 STD NONE 23 25 24 102 ...

Page 79: ...2 56 56 60 60 60 59 296 296 57 57 70 70 61 60 297 297 61 61 70 70 65 64 301 301 291A 12 4 16 5 34 4 39 7 66 66 70 70 55 60 292 292 71 71 80 80 60 65 296 296 72 72 80 80 61 66 297 297 77 77 80 80 65 70 301 301 294A 25 2 33 5 69 9 80 6 117 117 125 125 96 107 292 292 122 122 125 125 100 112 296 296 123 123 125 125 102 113 297 297 128 128 150 150 106 117 301 301 460 3 60 STD NONE 24 30 25 113 26 30 27...

Page 80: ...66 318 318 77 77 80 80 69 70 322 322 294A 25 2 33 5 69 9 80 6 117 117 125 125 96 107 313 313 122 122 125 125 100 112 317 317 123 123 125 125 102 113 318 318 128 128 150 150 106 117 322 322 291A 294A 37 6 50 0 104 3 120 3 148 148 150 150 136 153 313 313 153 153 175 175 140 157 317 317 154 154 175 175 141 158 318 318 159 159 175 175 145 163 322 322 460 3 60 STD NONE 26 30 27 126 28 30 29 128 28 30 3...

Page 81: ...pply Voltage Never operate a motor where a phase imbalance in supply voltage is greater than 2 Use the following formula to de termine the percentage of voltage imbalance Voltage Imbalance 100 x max voltage deviation from average voltage average voltage Example Supply voltage is 230 3 60 AB 224 v BC 231 v AC 226 v Average Voltage 224 231 226 681 3 3 227 Determine maximum deviation from average vol...

Page 82: ...ed with unit ELECTRICAL OPERATION HAZARD Failure to follow this warning could result in personal injury or death Relieve pressure and recover all refrigerant before system repair or final unit disposal Wear safety and gloves when handling refrigerants Keep torches and other ignition sources away from refrigerants and oils WARNING 3 Make the following inspections a Inspect for shipping and handling...

Page 83: ...at a position above room temperature Both compressors will shut off Evaporator fan will shut off after a 30 second delay The supply fan and both compressors will shut off To shut off unit set system selector switch at OFF position Resetting thermostat at a position above room temperature shuts unit off temporarily until space temperature exceeds thermostat setting Heating To start unit turn on mai...

Page 84: ...arometric relief C SA smoke detector N Temp ultra low leak econo w baro relief D RA SA smoke detector R Enthalpy ultra low leak econo w baro relief E CO2 sensor F RA smoke detector CO2 Base Unit Controls G SA smoke detector CO2 0 Electro Mechanical Control H RA SA smoke detector CO2 1 RTU Open Multi Protocol Controller 4 SystemVu Controller Indoor Fan Options 1 Standard Static Belt Drive with VFD ...

Page 85: ...e CFM and static pressure requirements for the unit installed Economizer Optional When the Economizer is in Free Cooling Mode and a demand for cooling exists Y1 on the thermostat the Economizer will modulate the outdoor air damper to provide a 50_F 10_C to 55_F 13_C mixed air temperature into the zone and run the indoor fan at high speed As mixed air temperature fluctuates above 55_F 13_C or below...

Page 86: ... See Fig 73 The jumper across the PS terminal will be removed When the LAS is active the switch will close making contact to the OF terminal and will drop connection to the ODF Relay When electrical connection is removed from the ODF Relay the PS connection will be opened This will place the third outdoor fan electrically isolated from receiving any speed command which will then turn the motor off...

Page 87: ... 13 8 13 8 Evaporator Fan and Motor Standard Static Motor Qty Drive type 1 Belt 1 Belt 1 Belt 1 Belt Max BHP 1 7 1 7 1 7 2 4 RPM range 356 534 338 507 338 507 375 563 Motor Frame Size 56 56 56 56Z Fan Qty Type 1 Centrifugal 1 Centrifugal 1 Centrifugal 1 Centrifugal Fan Diameter in 15 5 x 15 18 5 x 18 18 5 x 18 18 5 X 18 Medium Static Motor Qty Drive type 1 Belt 1 Belt 1 Belt 1 Belt Max BHP 1 7 1 7...

Page 88: ...Cu Al Coil type n a n a 5 16 RTPF 5 16 RTPF Rows FPI n a n a 2 18 2 18 Total Face Area ft2 n a n a 23 1 23 1 Condenser fan motor Qty Motor drive type 2 direct 3 direct 3 direct 3 direct Motor HP RPM 1 3 1000 1 3 1000 1 3 1000 1 3 1000 Fan diameter in 22 22 22 22 Filters RA Filter size in 4 20 x 20 x 2 6 18 x 24 x 2 6 18 x 24 x 2 6 18 x 24 x 2 OA inlet screen size in V 2 24 x 27 x 1 H 1 30 x 39 x1 ...

Page 89: ... 049 049 049 318A00 24 8 18 6 22 8 049 049 049 049 460 3 60 STD 319A00 6 0 5 5 047 047 047 047 320A00 14 0 12 9 047 047 047 047 321A00 25 5 23 4 047 047 047 047 MED 319A00 6 0 5 5 047 047 047 047 320A00 14 0 12 9 047 047 047 047 321A00 25 5 23 4 047 047 047 047 HIGH 319A00 6 0 5 5 047 047 047 047 320A00 14 0 12 9 047 047 047 047 321A00 25 5 23 4 047 047 047 047 575 3 60 STD 308A00 18 0 16 5 047 04...

Page 90: ...2 291A00 16 5 12 4 15 2 049 049 049 049 294A00 33 5 25 2 30 8 049 049 049 049 460 3 60 STD 289A00 10 0 9 2 292A00 16 5 15 2 295A00 33 5 30 8 047 047 047 047 MED 289A00 10 0 9 2 292A00 16 5 15 2 295A00 33 5 30 8 047 047 047 047 HIGH 289A00 10 0 9 2 292A00 16 5 15 2 295A00 33 5 30 8 047 047 047 050 ULTRA HIGH 289A00 10 0 9 2 292A00 16 5 15 2 295A00 33 5 30 8 047 047 047 050 575 3 60 STD 293A00 16 5 ...

Page 91: ...2 049 049 291A00 16 5 12 4 15 2 049 049 049 049 294A00 33 5 25 2 30 8 049 049 049 049 460 3 60 STD 289A00 10 0 9 2 292A00 16 5 15 2 295A00 33 5 30 8 047 047 047 047 MED 289A00 10 0 9 2 292A00 16 5 15 2 295A00 33 5 30 8 047 047 047 047 HIGH 289A00 10 0 9 2 292A00 16 5 15 2 295A00 33 5 30 8 047 047 047 050 ULTRA HIGH 289A00 10 0 9 2 292A00 16 5 15 2 295A00 33 5 30 8 047 050 050 050 575 3 60 STD 293A...

Page 92: ...9 049 049 049 291A00 294A00 50 0 37 6 45 9 051 051 051 051 460 3 60 STD 289A00 10 0 9 2 292A00 16 5 15 2 295A00 33 5 30 8 047 047 047 050 292A00 295A00 50 0 45 9 050 050 050 050 MED 289A00 10 0 9 2 292A00 16 5 15 2 295A00 33 5 30 8 047 047 047 050 292A00 295A00 50 0 45 9 050 050 050 050 HIGH 289A00 10 0 9 2 292A00 16 5 15 2 295A00 33 5 30 8 047 050 050 050 292A00 295A00 50 0 45 9 050 050 050 050 5...

Page 93: ...For information on the electrical properties of Carrier motors please see the Electrical information section of this book 6 For more information on the performance limits of Carrier motors see the application data section of this book 7 The EPACT Energy Policy Act regulates energy requirements for specific types of indoor fan motors Motors regu lated by EPACT include any general purpose T frame th...

Page 94: ... Field Supplied Drive High Static motor motor pulley KR11HY213 blower pulley KR51BH615 belt KR29BF047 880 1080 rpm Table 34 50LC 07 6 TON HORIZONTAL SUPPLY CFM Available External Static Pressure in wg 0 2 0 4 0 6 0 8 1 0 1 2 1 4 1 6 1 8 2 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 1800 366 0 19 466 0 30 555 0 42 635 0 55 707 0 69 772 0 84 833 1 00 890 1 16 94...

Page 95: ...blower pulley AK114 1 3 16 belt A47 308 462rpm Italics Field Supplied Motor and Drive Motor HD60FK658 motor pulley KR11HY213 blower pulley KR11AK215 belt KR29AF048 836 1006rpm Table 36 50LC 08 7 5 TON HORIZONTAL SUPPLY CFM Available External Static Pressure in wg 0 2 0 4 0 6 0 8 1 0 1 2 1 4 1 6 1 8 2 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 2250 347 0 26 45...

Page 96: ... Face Field Supplied Drive Standard motor motor pulley KR11HY151 blower pulley AK114 1 3 16 belt A47 308 462rpm Table 38 50LC 09 8 5 TON HORIZONTAL SUPPLY CFM Available External Static Pressure in wg 0 2 0 4 0 6 0 8 1 0 1 2 1 4 1 6 1 8 2 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 2550 328 0 25 432 0 46 517 0 71 589 0 98 652 1 28 708 1 59 759 1 91 807 2 25 851...

Page 97: ...ower pulley AK134 1 3 16 belt KR30AE051 340 470rpm Italics Field Supplied Drive High Static motor motor pulley KR11HY213 blower pulley KR51BH615 belt KR29BF047 880 1080 rpm Table 40 50LC 12 10 TON HORIZONTAL SUPPLY CFM Available External Static Pressure in wg 0 2 0 4 0 6 0 8 1 0 1 2 1 4 1 6 1 8 2 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 3000 348 0 34 443 0 ...

Page 98: ...9 968 938 908 877 847 09 Standard Static 507 490 473 456 439 423 406 389 372 355 338 N A N A Medium Static 675 656 638 619 600 582 563 544 525 507 488 N A N A High Static 863 844 825 807 788 769 750 731 713 694 675 N A N A Ultra High Static 1021 1002 983 964 945 927 908 889 870 851 832 N A N A 12 Standard Static 563 544 525 507 488 469 450 431 413 394 375 N A N A Medium Static 757 736 715 694 673 ...

Page 99: ...URE THAT ELECTRICAL WIRING IS NOT IN CONTACT WITH REFRIGERANT LINES OR SHARP METAL EDGES j CHECK PULLEY ALIGNMENT AND BELT TENSION PER INSTALLATION INSTRUCTIONS III START UP REFER TO UNIT SERVICE MAINTENANCE MANUAL FOR START UP INSTRUCTIONS ELECTRICAL SUPPLY VOLTAGE L1 L2 L2 L3 L3 L1 CIRCUIT 1 COMPRESSOR AMPS L1 L2 L3 CIRCUIT 2 COMPRESSOR AMPS L1 L2 L3 INDOOR FAN AMPS OUTDOOR FAN AMPS NO 1 NO 2 TE...

Page 100: ... S 7310 W Morris St S Indianapolis IN 46231 Edition Date 07 15 Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Catalog No 50LC 7 12 02SM Replaces 50LC07 12 01SM ...

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Carrier 50LC 07, Service And Maintenance Instructions, Page: 99 / 100

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