Carrier WeatherMaker 50TC 17-30 Series Service And Maintenance Instructions Download Page 14

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LEGEND

Table 2 —

Humidi-MiZer Reheat Control Board I/O

POINT NAME

TYPE

CONNECTION PIN

NUMBER

UNIT CONNECTION

NOTE

Humidistat/LTLO

DI, 24VAC

J1A - 1 (1)

LTLO

Thermostat W1

DI, 24VAC

J1A - 2 (2)

CTB - REHEAT - 4

Econ Y1

DI, 24VAC

J1A - 6 (6)

CTB - REHEAT - 5

Thermostat G

DI, 24VAC

J1B - 1 (7)

CTB - REHEAT - 1

24V Power (J1)

24VAC

J1B - 3 (9)

CTB - R

24V Power (J2)

24 VAC J2 - 1

CTB - R

Econ Y2

DI, 24VAC

J1B - 5 (11)

CTB - REHEAT - 7

2 - circ only

COMP1

DO, 24VAC

J1A - 5 (5)

CTB - HEAT - 6

IFM

DO, 24VAC

J1B - 4 (8)

CTB - REHEAT - 2

COMP2

DO, 24VAC

J1B - 4 (10)

CTB - REHEAT - 8

LSV

DO, 24VAC

J2 - 2

FTP (BLK)

DSV1

DO, 24VAC

J2 - 3

DSV

NOT LSV

DO, 24VAC

J2 - 4

2 - circ only

DSV2

DO, 24VAC

J2 - 5

2 - circ only

COMP

—

Compressor

CTB

—

Control Terminal Board

—

Discrete Input (switch)

—

Discrete Output (switch)

DSV

—

Discharge (gas) Solenoid Valve

ECON

—

Economizer

FPT

—

Freeze Protection Thermostat

IFM

—

Indoor (supply) Fan Motor

LSV

—

Liquid Solenoid Valve

LTLO

—

Low Temperature Lockout

REHEAT

—

Connection Strip REHEAT (on CTB)

Table 3 —

Inputs/Modes/Outputs Summary

INPUT

MODE

OUTPUT

HUM/

LTLO

COMP

IFM

LSV1 LSV2

LSV

NOT

DSV1 DSV2

OFF

Normal

Fan

OFF

OFF ON=G OFF

OFF ON=R OFF

OFF

Normal

Cool1

ON=Y1 OFF ON=G OFF

OFF ON=R OFF

OFF

Normal

Cool2

ON=Y2 ON

ON=G OFF

OFF ON=R OFF

OFF

Normal

Heat 1

OFF

OFF ON=G OFF

OFF ON=R OFF

OFF

Reheat

Dehumidify

ON=G

OFF ON=R ON=R

OFF

ON Subcool Cir1/

Reheat Cir2

Cool1 and Cool2 /

Subcool-Dehumidify

ON=G

OFF

OFF ON=R

OFF

Subcool Cir1

and Cir2

Cool1 and Cool2 /

Subcool-Dehumidify

ON=G

OFF

ON Heat Override

Heat 1

OFF

OFF ON=G OFF

OFF ON=R OFF

OFF

OFF ON+

ON Heat Override

Heat 1 and 2

OFF

OFF ON=G OFF

OFF ON=R OFF

OFF

Summary of Contents for WeatherMaker 50TC 17-30 Series

Page 1: ... Compressor 23 Compressor Rotation 23 Filter Drier 23 Adjusting the Condenser Fan 23 TROUBLESHOOTING THE COOLING SYSTEM 24 CONVENIENCE OUTLETS 25 Non Powered Type 25 Unit Powered Type 25 Wet in Use Convenience Outlet Cover 25 GFCI Maintenance 25 Fuse On Powered Type 26 Using Unit Mounted Convenience Outlets 26 Installing a Weatherproof Cover 26 SMOKE DETECTORS 26 System 26 Controller 26 Sensor 27 ...

Page 2: ...igerant compressors Pressurized mixtures of air or gases containing oxygen can lead to an explosion WARNING FIRE EXPLOSION HAZARD Failure to follow this warning could result in death serious personal injury and or property damage Never use non certified refrigerants in this product Non certified refrigerants could contain contaminates that could lead to unsafe operating conditions Use ONLY refrige...

Page 3: ...berglass media type Access to the filters is through the small lift out panel located on the rear side of the unit above the evaporator return air access panel See Fig 1 Removing the Return Air Filters 1 Remove the return air filter and indoor coil access panel See Fig 1 2 Reach inside and remove filters from the filter rack 3 Replace these filters as required with similar replacement fil ters of ...

Page 4: ... This arrangement promotes uniform airflow across the width of the evaporator coil and heater assembly while using a supply outlet on the rear side of the unit NOTE This major difference in the fan system design makes it impossible to field convert the 50TC unit s supply fan outlet configuration Fig 5 Supply Fan Arrangements BELT Check the belt condition and tension quarterly Inspect the belt for ...

Page 5: ... 7 Belt Drive Motor Mounting ADJUSTABLE PITCH PULLEY ON MOTOR The motor pulley is an adjustable pitch type that allows a servicer to implement changes in the fan wheel speed to match as installed ductwork systems The pulley consists of a fixed flange side that faces the motor secured to the motor shaft and a movable flange side that can be rotated around the fixed flange side that increases or red...

Page 6: ...ling operation the SAV system will adjust the fan motor to provide 66 of the de sign airflow rate for the unit When the call for the second stage of cooling is required the SAV system will allow the design airflow rate for the unit established 100 During the heating mode the SAV system will allow total design airflow rate 100 operation During ventilation mode the SAV system will operate the fan mo...

Page 7: ... motor pulley and blower wheel pulley using a straight edge See Fig 8 25 Adjust the V belt tension using the adjustment tool 26 Turn the two jack bolts clockwise moving the motor assembly away from the blower pulley increasing the V belt tension 27 Tighten the four bolts securing the motor mounting brackets to the unit Torque bolts to 120 12 in lb 14 1 4 Nm 28 Remove the cover on the motor connect...

Page 8: ... or industrial environments However it is very im portant that the water rinse is made with a very low velocity water stream to avoid damaging the fin edges Monthly cleaning as de scribed is recommended ROUTINE CLEANING OF COIL SURFACES Periodic cleaning with Totaline environmentally sound coil cleaner is essential to extend the life of coils This cleaner is avail able from Carrier Replacement Com...

Page 9: ... loaded fibers must be completely removed prior to using a low velocity clean water rinse A vacuum cleaner or a soft bristled brush should be used to remove surface loaded fibers and dirt PERIODIC CLEAN WATER RINSE A periodic clean water rinse is very beneficial for coils that are used in coastal or industrial environments However it is very im portant that the water rinse is made with a very low ...

Page 10: ...e a plugged or a miss ing orifice Refrigerant System Pressure Access Ports There are two access ports in the system on the suction tube near the compressor and on the discharge tube near the compressor These are brass fittings with black plastic caps The hose connec tion fittings are standard 1 4 in SAE male flare couplings The brass fittings are two piece High Flow valves with a re ceptacle base ...

Page 11: ... a factory installed head pressure con trol system Motormaster I to provide proper liquid pressure during reheat modes Unique system controls include a reheat re lay mode and evaporator coil freezestat and secondary low pres sure switch See Fig 16 See Fig 17 and Table 2 on page 14 for Reheat Control input output I O connections SUBCOOLER REHEAT COIL The Subcooler Reheat Coil is mounted across the ...

Page 12: ... sensible ca pacity load Alternatively if the sensible load is met and humidity levels remain high the unit can switch to Hot Gas Reheat mode or Reheat2 mode to provide neutral dehumidified air During the Reheat1 or Subcooling mode the liquid refrigerant flows from the outdoor compressor through the condenser coil to the Reheat1 RH1 x 3 way valve and on to the Humid Mizer coil The Reheat2 RH2 x va...

Page 13: ...tem CONDENSER COIL HUMIDI MIZER COIL EVAPORATOR COIL COMPRESSOR OUTDOOR AIR INDOOR AIR RH2 x VALVE RH1 x VALVE TXV VALVE CLOSED VALVE OPEN VALVE 3 WAY VALVE CONDENSER COIL HUMIDI MIZER COIL EVAPORATOR COIL COMPRESSOR OUTDOOR AIR INDOOR AIR RH2 x VALVE RH1 x VALVE TXV VALVE CLOSED VALVE OPEN VALVE 3 WAY VALVE ...

Page 14: ... Freeze Protection Thermostat IFM Indoor supply Fan Motor LSV Liquid Solenoid Valve LTLO Low Temperature Lockout REHEAT Connection Strip REHEAT on CTB Table 3 Inputs Modes Outputs Summary INPUT MODE OUTPUT Y1 Y2 W1 G HUM LTLO COMP 1 COMP 2 IFM LSV1 LSV2 LSV NOT DSV1 DSV2 OFF OFF OFF ON OFF Normal Fan OFF OFF ON G OFF OFF ON R OFF OFF ON OFF OFF On OFF Normal Cool1 ON Y1 OFF ON G OFF OFF ON R OFF O...

Page 15: ...k transformer and circuit beaker or fuses Solenoid coil burnout Check continuous over voltage is less than 10 Check under voltage is less than 15 Check for missing coil assembly parts Check for damaged valve enclosing tube Stuck valve Replace valve Replace filter drier RDV Valve Operation NOTE Normally Closed When De energized No 24V signal to input terminals Check RDV relay operation Check wiring...

Page 16: ...ower to the unit Use approved lockout tag out procedures 2 Using the gage set approved for use with Puron R 410A refrigerant recover all refrigerant from the system 3 Remove the TXV support clamp 4 Disconnect the liquid line at the TXV inlet 5 Remove the liquid line connection at the TXV inlet 6 Remove the equalizer tube from the suction line of the coil Use a tubing cutter to cut the brazed equal...

Page 17: ...re screwed into the base This check valve is permanently assembled into this core body and cannot be serviced separately replace the entire core body if necessary Service tools are avail able from RCD that allow the replacement of the check valve core without having to recover the entire system refrigerant charge Apply compressor refrigerant oil to the check valve core s bottom o ring Install the ...

Page 18: ...igerant as listed on the unit s rating plate LOW CHARGE COOLING Using the Cooling Charging Charts Fig 19 22 vary the refriger ant until the conditions of the appropriate chart are met Note the charging charts are different from the type normally used These charts are based on charging the units to the correct superheat for the various operating conditions Accurate pressure gage and tem perature se...

Page 19: ...sig Suction Temperature 50HE501045 C 115F 46 1C 105F 40 6C 95F 35 0C 85F 29 4C 75F 23 9C 65F 18 3C 55F 12 8C 45F 7 2C COOLING CHARGING CHART 15 and 17 5 Ton Circuit A F 35 40 45 50 55 60 65 70 75 80 85 90 95 100 C 1 7 4 4 7 2 10 0 12 8 15 6 18 3 21 1 23 9 26 7 29 4 32 2 35 0 37 8 185 0 175 0 165 0 155 0 145 0 135 0 125 0 115 0 105 0 95 0 85 0 75 0 Suction Pressure psig Suction Temperature 50HE5010...

Page 20: ...ion Temperature 50HE501089 C 115F 46 1C 105F 40 6C 95F 35 0C 85F 29 4C 75F 23 9C 65F 18 3C 55F 12 8C 45F 7 2C COOLING CHARGING CHART 20 Ton Circuit A F 35 40 45 50 55 60 65 70 75 80 85 90 95 100 C 1 7 4 4 7 2 10 0 12 8 15 6 18 3 21 1 23 9 26 7 29 4 32 2 35 0 37 8 185 0 175 0 165 0 155 0 145 0 135 0 125 0 115 0 105 0 95 0 85 0 75 0 Suction Pressure psig Suction Temperature 50HE501090 C 115F 46 1C 1...

Page 21: ...0 0 90 0 80 0 50HE501091 C 115F 46 1C 105F 40 6C 95F 35 0C 85F 29 4C 75F 23 9C 65F 18 3C 55F 12 8C 45F 7 2C COOLING CHARGING CHART 25 0 Ton Circuit A F 45 50 55 60 65 70 75 80 85 90 95 100 C 7 2 10 5 12 8 15 6 18 3 21 1 23 9 26 7 29 4 32 2 35 0 37 8 Suction Pressure psig Suction Temperature 180 0 170 0 160 0 150 0 140 0 130 0 120 0 110 0 100 0 90 0 80 0 50HE501092 C 115F 46 1C 105F 40 6C 95F 35 0C...

Page 22: ...22 Fig 30 Cooling Charging Chart 27 5 Ton Circuit A Fig 31 Cooling Charging Chart 27 5 Ton Circuit B COOLING CHARGING CHART 27 5 Ton Circuit A COOLING CHARGING CHART 27 5 Ton Circuit B ...

Page 23: ...ER DRIER Use the following steps to replace the filter drier 1 Using a Puron R 410A gage set recover all refrigerant from the system 2 Use a tubing cutter to remove the filter drier from the line NOTE Do not use a torch to remove the old filter drier The heat from the torch will allow contaminants into the air and into the open refrigeration system 3 Sweat a new replacement filter drier into the r...

Page 24: ... filter Unit undersized for load Decrease load or replace with larger unit 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 or remove restriction Excessive Head Pressure Dirty air filter Replace ai...

Page 25: ... of primary power source is a custom er option If local codes permit the transformer primary leads can be connected at the line side terminals on a unit mounted non fused disconnect or circuit breaker switch this will provide service power to the unit when the unit disconnect switch or cir cuit breaker is open Other connection methods will result in the convenience outlet circuit being de energize...

Page 26: ...lation to confirm full closing and latching Fig 35 Weatherproof Cover Installation SMOKE DETECTORS Smoke detectors are available as factory installed options on 50TC models Smoke detectors may be specified for supply air only for return air without or with economizer or in combination of supply air and return air Return air smoke detectors are ar ranged for vertical return configurations only All ...

Page 27: ...ed over time does not For installations using two sensors the duct smoke detector does not differentiate which sensor signals an alarm or trouble condition Fig 37 Smoke Detector Sensor Smoke Detector Locations SUPPLYAIR The supply air smoke detector sensor is located to the left of the unit s indoor supply fan See Fig 38 Access is through the fan access panel There is no sampling tube used at this...

Page 28: ...ral Terminal board CTB all unit oper ations cease immediately PREMIERLINK AND RTU OPEN CONTROLS Unit operating functions fan cooling and heating are terminated as described above Highlight D On smoke alarm condition the smoke detector NO Alarm contact will close supplying 24 v power to the GRA conductor Highlight E The GRA lead at the Smoke Alarm input on LCTB provides a 24 v signal to the FIOP DD...

Page 29: ...consid ered 100 dirty and requires cleaning or replacing Use a field provided SD MAG test magnet to initiate a sensor dirty test The sensor s Dirty LED indicates the results of the dirty test as shown in Table 6 B D F E A C 48TM502525 D NOTICE OPERATIONAL TEST NOTICE Failure to follow this NOTICE may result in an unnecessary evacuation of the facility This test places the duct detector into the al...

Page 30: ...an the duct smoke sensor when the Dirty LED is flashing con tinuously or sooner if conditions warrant 1 Disconnect power from the duct detector then remove the sensor s cover See Fig 43 Table 6 Dirty LED Test FLASHES DESCRIPTION 1 0 25 dirty Typical of a newly installed detector 2 25 50 dirty 3 51 75 dirty 4 76 99 dirty NOTICE OPERATIONAL TEST NOTICE Failure to follow this NOTICE may result in an ...

Page 31: ...ine is pulled to ground Trouble state The SuperDuct duct smoke detector enters the trouble state under the following conditions A sensor s cover is removed and 20 minutes pass before it is properly secured A sensor s environmental compensation limit is reached 100 dirty A wiring fault between a sensor and the controller is detected An internal sensor fault is detected upon entering the trouble sta...

Page 32: ...r has internal linebreak motor protection Reset is automatic after compressor motor has cooled OVERTEMPERATURE Each compressor has an internal protector to protect it against ex cessively high discharge gas temperatures Reset is automatic HIGH PRESSURE SWITCH The system is provided with a high pressure switch mounted on the discharge line The switch is stem mounted and brazed into the discharge tu...

Page 33: ...ctions manual RTU Open Control System For details on operating units equipped with the factory installed RTU Open controller refer to the Factory Installed RTU Open Multi Protocol Controller Control Start Up Operation and Trou bleshooting manual ECONOMI ER SYSTEMS The 50TC units may be equipped with a factory installed or acces sory field installed EconoMi er system Three types are avail able with...

Page 34: ...34 Fig 48 RTU Open Overlay for Economizer Wiring ...

Page 35: ...35 Fig 49 VFD Overlay for W2770 Controller Wiring ...

Page 36: ...tion for economizer to operate 2 PremierLink control requires that the standard 50HJ540569 out side air sensor be replaced by either the CROASENR001A00 dry bulb sensor or HH57A077 enthalpy sensor 3 50HJ540573 actuator consists of the 50HJ540567 actuator and a harness with 500 ohm resistor Fig 51 EconoMi er2 with 4 to 20 mA Control Wiring FOR OCCUPANCY CONTROL REPLACE JUMPER WITH FIELD SUPPLIED TIM...

Page 37: ...upply air sensor signal Modulation is based on the DCV signal Modulation is based on the greater of DCV and supply air sensor signals between minimum position and either maximum position DCV or fully open supply air signal Modulation is based on the greater of DCV and supply air sensor signals between closed and either maximum position DCV or fully open supply air signal Fig 52 EconoMi er IV Funct...

Page 38: ...bove the setpoint the EconoMi er IV system will adjust the out side air dampers to minimum position If the outdoor air tempera ture is below the setpoint the position of the outside air dampers will be controlled to provided free cooling using outdoor air When in this mode the LED next to the free cooling setpoint po tentiometer will be on The changeover temperature setpoint is controlled by the f...

Page 39: ...oller When using this mode of changeover control turn the enthalpy setpoint potentiometer fully clockwise to the D setting INDOOR AIR QUALITY IAQ SENSOR INPUT The IAQ input can be used for demand controlled ventilation con trol based on the level of CO2 measured in the space or return air duct Mount the accessory IAQ sensor according to manufacturer speci fications The IAQ sensor should be wired t...

Page 40: ... er IV controller the minimum position of the damper can be controlled from a remote location To control the minimum damper position remotely remove the factory installed jumper on the P and P1 terminals on the EconoMi er IV controller Wire the field supplied potentiometer to the P and P1 terminals on the EconoMi er IV controller See Fig 58 DAMPER MOVEMENT Damper movement from full open to full cl...

Page 41: ...al operation CRENTDIF004A00 and CRTEMPSN002A00 accessories are used on many different base units As such these kits may contain parts that will not be needed for installation 33ZCSENCO2 is an accessory CO2 sensor 33ZCASPCO2 is an accessory aspirator box required for duct mounted applications CRCBDIOX005A00 is an accessory that contains both 33ZCSEN CO2 and 33ZCASPCO2 accessories The custom setting...

Page 42: ...ng DCV MINIMUM AND MAXIMUM POSITION To check the DCV minimum and maximum position 1 Make sure EconoMi er IV preparation procedure has been performed 2 Connect a 9 v battery to AQ positive node and AQ1 negative node The DCV LED should turn on The actua tor should drive to between 90 and 95 open 3 Turn the DCV Maximum Position potentiometer to mid point The actuator should drive to between 20 and 80...

Page 43: ... 30 vac RMS 50 60 Hz Transformer 100 va maximum system input Nominal Power Consumption at 24 vac 60 Hz 11 5 VA without sensors or actuators Relay Digital Output Rating at 30 vac maximum power from Class 2 input only 1 5A run 3 5A inrush at 0 45PF 200 000 cycles or 7 5A inrush at 0 45PF 100 000 cycles External Sensors Power Output 21 vdc 5 at 48mA INPUTS Sensors NOTE A Mixed Air MA analog sensor is...

Page 44: ...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 NA AUX2 OCC E GND EXH1 AUX1 O Y2 Y1 Y2 O Y1 O C R 50048848 002 Rev A NA A2 OCC EX A1 Y2I Y2O Y1I Y1O C R MAT MAT OAT OAT S BUS S BUS IAQ 2 10 IAQCOM IAQ 24V ACT 2 10 ACT COM ACT 24V MA MA OA OA SB SB SB SB SB SB V C R V C R NA 50040839 001 Rev G HJW10 www energy ...

Page 45: ...t a menu s item and return to the list of menus Fig 65 W7220 Controller Navigation Buttons To use the keypad when working with Setpoints System and Ad vanced Settings Checkout tests andAlarms 1 Navigate to the desired menu 2 Press the Enter button to display the first item in the currently displayed menu 3 Use the and buttons to scroll to the desired parameter 4 Press the Enter button to display t...

Page 46: ...ac on terminal Y1 I COOL Y1 OUT OFF ON OFF FIRST STAGE COOLING RELAY OUTPUT Cool stage 1 Relay Output to stage 1 mechanical cooling Y1 OUT terminal COOL Y2 IN OFF ON OFF SECOND STAGE COOLING DEMAND Y2 IN Y2 I signal from space thermostat or unitary controller for second stage cooling ON 24 vac on terminal Y2 I OFF 0 vac on terminal Y2 I COOL Y2 OUT OFF ON OFF SECOND STAGE COOLING RELAY OUTPUT Cool...

Page 47: ...pressor lockout At or below the set point the Y1 O and Y2 O will not be energized on the controller DRYBLB SET 63 F 17 C 48 F to 80 F 9 C to 27 C increment by 1 F OA DRY BULB TEMPERATURE CHANGEOVER SETPOINT Dry bulb set point will only appear if using dry bulb changeover Set point determines where the economizer will assume outdoor air temperature is good for free cooling e g at 63 F unit will eco...

Page 48: ...V mode for W Shutdown is not available in 2 speed fan mode In HP O B mode HP O energize heat pump on Cool default HP B energize heat pump on heat FAN SPEED 2 speed 1 speed 2 speed Sets the economizer controller for operation of 1 speed or 2 speed supply fan The controller does not control the fan but positions the OA and RA dampers to heating or cooling mode NOTE 2 speed fan option also needs Heat...

Page 49: ...N Allows for operator to adjust for an out of calibration humidity sensor DA T CAL 0 0 F 2 5 F DISCHARGE AIR TEMPERATURE CALIBRATION Allows for the operator to adjust for an out of calibration temperature sensor 2SP FAN DELAY 5 Minutes 0 to 20 minutes in 1 minute increments TIME DELAY ON SECOND STAGE ECONOMIZING When in economizing mode this is the delay for the high speed fan to try to satisfy th...

Page 50: ... T ERR RETURN AIR S BUS SENSOR ERROR Return air enthalpy sensor has failed or become disconnected check wiring then replace sensor if the alarm continues RA SYLK H ERR DA SYLK T ERR DISCHARGE AIR S BUS SENSOR ERROR Discharge air sensor has failed or become disconnected check wiring then replace sensor if the alarm continues OA SENS T ERR OUTSIDE AIR TEMPERATURE SENSOR ERROR Outdoor air temperature...

Page 51: ...S Closed On On High 24 v On 24 v On MIN POS Closed Yes Off Off High 0 v Off 0 v Off MIN POS Closed On Off High 0 v Off 0 v Off MIN POS to Full Open Closed to Full Open On On High 24 v On 0 v Off MIN POS to Full Open Closed to Full Open Table 18 Dry Bulb Operation with DCV CO2 Sensor 1 Speed Fan DEMAND CONTROLLED VENTILATION DCV OUTSIDE AIR GOOD TO ECONOMIZE Y1 I Y2 I FAN SPEED Y1 O Y2 O OCCUPIED U...

Page 52: ...f Off High 0 v Off 0 v Off MIN POS Closed On Off High 0 v Off 0 v Off MIN POS to Full Open Closed to Full Open On On High 24 v On 0 v Off MIN POS to Full Open Closed to Full Open Table 20 Enthalpy Operation with DCV CO2 Sensor 1 Speed Fan DEMAND CONTROLLED VENTILATION DCV OUTSIDE AIR GOOD TO ECONOMIZE Y1 I Y2 I FAN SPEED Y1 O Y2 O OCCUPIED UNOCCUPIED Below CO2 set No Off Off High 0 v Off 0 v Off V...

Page 53: ...I Y2 I FAN SPEED Y1 O Y2 O OCCUPIED UNOCCUPIED Below CO2 Set No OFF OFF LOW 0v Off 0v Off VENTMIN Closed ON OFF LOW 24v On 0v Off VENTMIN Closed ON ON HIGH 24v On 24v On VENTMIN Closed Yes OFF OFF LOW 0v Off 0v Off VENTMIN Closed ON OFF LOW 0v Off 0v Off VENTMIN to Full Open Closed to Full Open ON ON HIGH 24v On 0v Off VENTMIN to Full Open Closed to Full Open Above CO2 Set No OFF OFF LOW 0v Off 0v...

Page 54: ...the supply fan and controls the OAdamper to the required posi tion see Table 25 The W heating mode is not controlled by the W7220 but it re quires the status to know where to position the OA damper for minimum position for the fan speed The 2 speed fan delay is available when the system is pro grammed for 2 speed fan in the System Setup menu item The 2 speed fan delay is defaulted to 5 minutes and...

Page 55: ...n the Checkout menu using the and buttons 2 Press the Enter button to select the item RUN appears 3 Press the Enter button to start the test The unit pauses and then displays IN PROGRESS When the test is complete DONE appears 4 When all desired parameters have been tested press the Menu Up button to end the test The Checkout tests can all be performed at the time of installation or at any time dur...

Page 56: ...rtant when field accessories have been added to the unit The factory pre configures options in stalled at the factory There may also be additional installation steps or inspection required during the start up process Additional Installation Inspection Inspect the field installed accessories for proper installation mak ing note of which ones do or do not require configuration changes Inspect the RT...

Page 57: ... until space temperature exceeds thermostat setting NOTE The default value for the evaporator fan motor on off de lay is 45 seconds Based upon unit operating conditions the on de lay can be reduced to 0 seconds and the off delay can be extended to 180 seconds When one flash of the LED is observed the evap orator fan on off delay has been modified Ventilation Continuous Fan Set fan and system selec...

Page 58: ...oatAl Cu T Al Al Al Cu Louvered Hail Guard U Al Al Cu Cu Louvered Hail Guard V Al Al E coat Al Cu Louvered Hail Guard W E coat Al Al Al Cu Louvered Hail Guard X E coat Al Al E coat Al Cu Louvered Hail Guard Voltage 1 575 3 60 5 208 230 3 60 6 460 3 60 Design Revision Factory Design Revision Base Unit Controls 0 Base Electromechanical Controls 1 PremierLink Controller 2 RTU Open Multi Protocol Cont...

Page 59: ...il Guard N Precoat Al Cu Al Cu Louvered Hail Guard P E coat Al Cu Al Cu Louvered Hail Guard Q E coat Al Cu E coat Al Cu Louvered Hail Guard R Cu Cu Al Cu Louvered Hail Guard S Cu Cu Cu Cu Louvered Hail Guard Voltage 1 575 3 60 5 208 230 3 60 6 460 3 60 Design Revision Factory Design Revision Base Unit Controls 0 Electro mechanical controls Can be used with W7212 EconoMi er IV Non Fault Detection a...

Page 60: ... RPM Range 679 863 Max blower shaft RPM 1200 Motor frame size 56 Fan qty Type 2 Centrifugal Fan diameter in 15 x 15 High Static Motor qty Belt qty Drive type 1 1 Belt Nominal nameplate HP 5 25 Max BHP 4 9 RPM Range 826 1009 Max blower shaft RPM 1200 Motor frame size 56 Fan qty Type 2 Centrifugal Fan diameter in 15 x 15 Medium Static High Efficiency Motor qty Belt qty Drive type 1 1 Belt 1 1 Belt 1...

Page 61: ...tor drive type 3 direct 3 direct 4 direct 4 direct Motor HP RPM 1 4 1100 1 4 1100 1 4 1100 1 4 1100 Fan diameter in 22 22 22 22 FILTERS RA filter size in 6 20 x 25 x 2 6 20 x 25 x 2 6 20 x 25 x 2 9 16 x 25 x 2 OA inlet screen size in 4 16 x 25 x 1 4 16 x 25 x 1 4 16 x 25 x 1 4 16 x 25 x 1 Table A Physical Data Vertical Cooling 15 To 25 Tons Novation Coils cont 50TC D17 50TC D20 50TC D24 50TC D28 A...

Page 62: ...5 x 15 15 x 15 15 x 15 Medium Static Motor qty Belt qty Drive type 1 1 Belt 1 1 Belt 1 1 Belt 1 1 Belt Nominal nameplate HP 3 7 3 7 5 25 5 25 Max BHP 3 7 3 7 4 9 4 9 RPM Range 679 863 679 863 713 879 713 879 Max blower shaft RPM 1200 1200 1200 1200 Motor frame size 56 56 56 56 Fan qty Type 2 Centrifugal 2 Centrifugal 2 Centrifugal 2 Centrifugal Fan diameter in 15 x 15 15 x 15 15 x 15 15 x 15 High ...

Page 63: ... 17 2 17 2 17 Total face area ft2 21 4 21 4 21 4 21 4 COND FAN MOTOR Qty Motor drive type 3 direct 3 direct 3 direct 3 direct Motor HP RPM 1 4 1100 1 4 1100 1 4 1100 1 4 1100 Fan diameter in 22 22 22 22 FILTERS RA filter size in 6 20 x 25 x 2 6 20 x 25 x 2 6 20 x 25 x 2 6 20 x 25 x 2 OA inlet screen size in 4 16 x 25 x 1 4 16 x 25 x 1 4 16 x 25 x 1 4 16 x 25 x 1 Table B Physical Data Vertical Cool...

Page 64: ... Drive type 1 1 Belt Nominal nameplate HP 5 0 Max BHP 6 5 6 9 7 0 8 3 RPM Range 751 954 Max blower shaft RPM 1300 Motor frame size 184T Fan qty Type 2 Centrifugal Fan diameter in 15 x 15 Medium Static High Efficiency Motor qty Belt qty Drive type 1 1 Belt 1 1 Belt 1 1 Belt 1 1 Belt 1 1 Belt Nominal nameplate HP 5 0 5 0 5 0 5 0 7 5 Max BHP 208 230 460 575v 6 5 6 9 7 0 8 3 6 5 6 9 7 0 8 3 6 5 6 9 7 ...

Page 65: ...ct 4 direct 4 direct 6 direct Motor HP RPM 1 4 1100 1 4 1100 1 4 1100 1 4 1100 1 4 1100 Fan diameter in 22 22 22 22 22 FILTERS RA filter size in 6 20 x 25 x 2 6 20 x 25 x 2 9 16 x 25 x 2 9 16 x 25 x 2 9 16 x 25 x 2 OA inlet screen size in 4 16 x 25 x 1 4 16 x 25 x 1 4 16 x 25 x 1 4 16 x 25 x 1 4 16 x 25 x 1 Table C Physical Data Vertical Cooling 20 to 27 5 Tons RTPF Coils cont 50TC D24 50TC E24 50...

Page 66: ...ameter in 18 x 15 15 X 11 18 x 15 15 X 11 18 x 15 15 X 11 18 x 15 15 X 11 Medium Static Motor qty Belt qty Drive type 1 1 Belt 1 1 Belt 1 1 Belt 1 1 Belt Nominal nameplate HP 3 7 3 7 5 25 5 25 Max BHP 3 7 3 7 4 9 4 9 RPM Range 614 780 614 780 713 879 713 879 Max blower shaft RPM 1100 1100 1100 1100 Motor frame size 56 56 56 56 Fan qty Type 2 Centrifugal 2 Centrifugal 2 Centrifugal 2 Centrifugal Fa...

Page 67: ...pe 3 direct 3 direct 4 direct 4 direct Motor HP RPM 1 4 1100 1 4 1100 1 4 1100 1 4 1100 Fan diameter in 22 22 22 22 FILTERS RA filter size in 6 20 x 25 x 2 6 20 x 25 x 2 6 20 x 25 x 2 6 20 x 25 x 2 OA inlet screen size in 4 16 x 25 x 1 4 16 x 25 x 1 4 16 x 25 x 1 4 16 x 25 x 1 Table D Physical Data Horizontal Cooling 15 To 17 5 Tons RTPF Coils cont 50TC D18 50TC E18 50TC D21 50TC E21 APPENDIX B PH...

Page 68: ... 7 0 8 3 6 5 6 9 7 0 8 3 6 5 6 9 7 0 8 3 6 5 6 9 7 0 8 3 RPM Range 835 1021 835 1021 755 923 755 923 Max blower shaft RPM 1100 1100 1100 1100 Motor frame size 184T 184T 184T 184T Fan qty Type 2 Centrifugal 2 Centrifugal 2 Centrifugal 2 Centrifugal Fan diameter in 18 x 15 15 X 11 18 x 15 15 X 11 18 x 15 15 X 11 18 x 15 15 X 11 High Static High Efficiency Motor qty Belt qty Drive type 1 1 Belt 1 1 B...

Page 69: ... 686 2 11 750 2 53 810 2 97 6750 574 1 58 638 1 93 702 2 33 764 2 76 822 3 22 7150 601 1 84 661 2 20 722 2 61 781 3 06 838 3 53 7500 625 2 09 682 2 46 740 2 88 797 3 34 852 3 82 CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 2 1 4 1 6 1 8 2 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 4500 808 2 27 864 2 66 916 3 06 965 3 48 1012 3 92 4900 819 2 48 874 2 89 926 3 31 975 3 74 1021 4 19 5250 829 2 68 8...

Page 70: ...18 8300 681 2 75 731 3 14 783 3 58 836 4 06 887 4 57 8750 713 3 18 760 3 58 809 4 03 859 4 53 908 5 05 CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 2 1 4 1 6 1 8 2 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 5250 829 2 68 884 3 10 935 3 53 983 3 98 1029 4 44 5700 843 2 95 897 3 40 947 3 85 995 4 32 1041 4 80 6150 857 3 26 910 3 72 960 4 19 1008 4 68 1053 5 18 6550 871 3 54 923 4 03 972 4 52 1019 5...

Page 71: ...4 17 853 4 76 910 5 31 963 5 85 10000 730 3 99 813 4 73 878 5 36 935 5 95 987 6 52 CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 2 1 4 1 6 1 8 2 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 6000 861 2 80 912 3 15 962 3 50 1008 3 86 1053 4 23 6500 880 3 18 930 3 55 978 3 92 1024 4 30 1068 4 69 7000 900 3 60 949 3 99 996 4 38 1041 4 78 1085 5 19 7500 921 4 06 969 4 47 1016 4 89 1060 5 31 1102 5 74 800...

Page 72: ...787 3 86 872 4 61 940 5 28 1000 5 91 11250 653 3 09 808 4 35 895 5 17 965 5 90 1025 6 58 11900 647 3 31 831 4 91 921 5 83 991 6 63 1051 7 37 12500 641 3 51 851 5 46 943 6 48 1015 7 34 1075 8 14 CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 2 1 4 1 6 1 8 2 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 7500 927 3 53 978 3 94 1026 4 36 1071 4 79 1114 5 21 8150 953 4 04 1003 4 49 1051 4 94 1096 5 39 1138...

Page 73: ...TATIC PRESSURE in wg 1 2 1 4 1 6 1 8 2 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 8250 957 4 13 1007 4 58 1055 5 04 1099 5 49 1142 5 95 8950 985 4 75 1035 5 24 1082 5 73 1126 6 22 1169 6 72 9650 1013 5 43 1063 5 96 1110 6 49 1154 7 02 1196 7 56 10300 1040 6 12 1089 6 70 1136 7 27 1180 7 83 1221 8 40 11000 1068 6 93 1118 7 55 1164 8 17 1208 8 77 1249 9 38 11700 1097 7 81 1147 8 48 1193 9 14 1236 9 7...

Page 74: ... 90 736 3 54 787 4 21 6000 580 2 04 643 2 61 702 3 22 756 3 88 806 4 58 6400 610 2 39 670 2 99 727 3 64 779 4 32 6750 636 2 74 695 3 36 749 4 03 800 4 74 7150 667 3 18 723 3 83 775 4 52 7500 694 3 60 748 4 28 CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 2 1 4 1 6 1 8 2 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 4500 781 3 81 828 4 46 4900 799 4 16 845 4 84 5250 816 4 49 5650 6000 6400 6750 7150 7...

Page 75: ... 4 84 825 5 59 872 6 37 916 7 19 8300 757 4 72 806 5 45 853 6 23 898 7 04 940 7 89 8750 793 5 45 840 6 21 885 7 02 928 7 86 CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 2 1 4 1 6 1 8 2 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 5250 816 4 49 861 5 20 904 5 92 945 6 68 984 7 45 5700 838 4 96 882 5 70 925 6 46 965 7 24 1003 8 04 6150 861 5 48 904 6 25 946 7 04 986 7 85 6550 882 5 99 925 6 78 966 7 ...

Page 76: ... 02 913 5 70 959 6 40 9000 796 4 34 849 5 01 899 5 71 946 6 42 990 7 15 9500 834 5 03 885 5 73 933 6 46 978 7 20 1021 7 96 10000 873 5 78 921 6 52 968 7 28 1011 8 06 1053 8 86 CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 2 1 4 1 6 1 8 2 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 6000 863 4 11 907 4 68 949 5 26 989 5 86 1026 6 47 6500 889 4 60 933 5 20 974 5 82 1013 6 44 1051 7 09 7000 916 5 14 95...

Page 77: ... 86 10500 911 6 62 958 7 39 1003 8 18 1045 8 99 1086 9 82 11000 950 7 53 995 8 34 1038 9 16 1079 10 01 11500 989 8 53 1033 9 37 1074 10 23 CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 1 2 1 4 1 6 1 8 2 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP 7500 944 5 74 986 6 40 1026 7 08 1064 7 77 8000 972 6 39 1014 7 09 1053 7 79 1091 8 51 8500 1002 7 11 1042 7 83 1081 8 57 9000 1031 7 89 1071 8 65 9500 1062...

Page 78: ...tatic 954 934 913 893 873 853 832 812 792 771 751 Medium Static 1175 1155 1135 1114 1094 1074 1054 1034 1013 993 973 High Static 1299 1271 1242 1214 1185 1157 1129 1100 1072 1043 1015 Factory setting Table P Pulley Adjustment Horizontal Units UNIT MOTOR DRIVE COMBO MOTOR PULLEY TURNS OPEN 0 0 5 1 1 5 2 2 5 3 3 5 4 4 5 5 18 3 phase Standard Static 680 663 647 630 614 597 580 564 547 531 514 Medium ...

Page 79: ...G page 85 50HE502185 E page 86 460 3 60 50HE500895 L page 84 50HE502182 F page 87 575 3 60 50HE501774 F page 88 24 25 208 230 3 60 50HE500887 L page 80 50HE500894 L page 83 50HE502180 G page v 50HE502185 E page 86 460 3 60 50HE500895 L page 84 50HE502182 F page 87 575 3 60 50HE501774 F page 88 28 29 208 230 3 60 50HE500887 L page 80 50HE500894 L page 83 50HE502180 G page 85 50HE502185 E page 86 46...

Page 80: ...80 Fig C 50TC 17 28 Control Wiring Diagram APPENDIX D WIRING DIAGRAMS ...

Page 81: ...81 Fig D 50TC 30 Control Wiring Diagram 208 230 3 60 Units APPENDIX D WIRING DIAGRAMS ...

Page 82: ...82 Fig E 50TC 30 Control Wiring Diagram 460 3 60 575 3 60 Units APPENDIX D WIRING DIAGRAMS ...

Page 83: ...83 Fig F 50TC 17 30 Power Wiring Diagram 208 230 3 60 Units APPENDIX D WIRING DIAGRAMS ...

Page 84: ...84 Fig G 50TC 17 30 Power Wiring Diagram 460 3 60 575 3 60 Units APPENDIX D WIRING DIAGRAMS ...

Page 85: ...85 Fig H 50TC 17 30 Control Wiring Diagram with Humidi MiZer System APPENDIX D WIRING DIAGRAMS ...

Page 86: ...86 Fig I 50TC 17 30 Power Wiring Diagram 208 230 3 60 Units with Humidi MiZer System APPENDIX D WIRING DIAGRAMS ...

Page 87: ...87 Fig J 50TC 17 30 Power Wiring Diagram 460 3 60 Units with Humidi MiZer System APPENDIX D WIRING DIAGRAMS ...

Page 88: ...88 Fig K 50TC 17 30 Power Wiring Diagram 575 3 60 Units with Humidi MiZer System APPENDIX D WIRING DIAGRAMS ...

Page 89: ...89 Fig L 50TC PremierLink System Wiring Diagram APPENDIX D WIRING DIAGRAMS ...

Page 90: ...90 Fig M 50TC RTU Open Wiring Diagram APPENDIX D WIRING DIAGRAMS ...

Page 91: ...91 Fig N 50TC SAV VFD System Wiring Diagram APPENDIX D WIRING DIAGRAMS ...

Page 92: ...92 Fig O Motormaster Sensor Location Sizes 17 25 Fig P Motormaster Sensor Location Sizes 28 30 SENSOR LOCATION SENSOR LOCATION APPENDIX E MOTORMASTER SENSOR LOCATIONS ...

Page 93: ......

Page 94: ...ight to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53500227 01 Printed in U S A Form 50TC 17 30 02SM Pg 94 1 21 Replaces 50TC 17 30 01SM 2021 Carrier ...

Page 95: ...rical connections and terminals for tightness Y N _____ Check that return indoor air filters are clean and in place Y N _____ Verify that unit installation is level Y N _____ Check fan wheels and propeller for location in housing orifice and setscrew tightness Y N _____ Check to ensure that electrical wiring is not in contact with refrigerant lines or sharp metal edges Y N _____ Check pulley align...

Page 96: ...ring air temperature _______________ F D Liquid line temperature at outlet or reheat coil _______________ F E Confirm correct rotation for compressor Y N _____ F Check for correct ramp up of outdoor fan motor as condenser coil warms Y N _____ 4 Check unit charge per charging chart Y N _____ Jumper 32L Motormaster temperature sensor during this check Remove jumper when complete 5 Switch unit to hig...

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Carrier WeatherMaker 50TC 17-30 Series, Service And Maintenance Instructions

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