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Carrier WeatherMaker 48TC*A04, Service And Maintenance Instructions

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Carrier WeatherMaker 48TC*A04 Service And Maintenance Instructions Download Page 29

29

Table 9 – IGC Connections

TERMINAL LABEL

POINT DESCRIPTION

SENSOR LOCATION

TYPE OF I/O

CONNECTION

PIN NUMBER

INPUTS

RT, C

Input power from TRAN 1

control box

24 VAC

—

SS

Speed sensor

gas section

analog input

J1, 1-3

FS, T1

Flame sensor

gas section

switch input

—

W

Heat stage 1

LCTB

24 VAC

J2, 2

RS

Rollout switch

gas section

switch input

J2, 5-6

LS

Limit switch

fan section

switch input

J2, 7-8

CS

Centrifugal switch (not used)

—

switch input

J2, 9-10

OUTPUTS

L1, CM

Induced draft combustion motor

gas section

line VAC

IFO

Indoor fan

control box

relay

J2, 1

GV

Gas valve (heat stage 1)

gas section

relay

J2, 11-12

Table 10 – Orifice Sizes

ORIFICE

DRILL SIZE

CARRIER

PART NUMBER

DRILL

DIA. (in.)

#30

LH32RF129

0.1285

1/8

LH32RF125

0.1250

#31

LH32RF120

0.1200

#32

LH32RF116

0.1160

#33

LH32RF113

0.1130

#34

LH32RF111

0.1110

#35

LH32RF110

0.1100

#36

LH32RF105

0.1065

#37

LH32RF104

0.1040

#38

LH32RF102

0.1015

#39

LH32RF103

0.0995

#40

LH32RF098

0.0980

#41

LH32RF096

0.0960

#42

LH32RF094

0.0935

#43

LH32RF089

0.0890

#44

LH32RF086

0.0860

#45

LH32RF082

0.0820

#46

LH32RF080

0.0810

#47

LH32RF079

0.0785

#48

LH32RF076

0.0760

#49

LH32RF073

0.0730

#50

LH32RF070

0.0700

#51

LH32RF067

0.0670

#52

LH32RF065

0.0635

#53

LH32RF060

0.0595

#54

LH32RF055

0.0550

#55

LH32RF052

0.0520

#56

LH32RF047

0.0465

#57

LH32RF043

0.0430

#58

LH32RF042

0.0420

48TC

Summary of Contents for WeatherMaker 48TC*A04

Page 1: ...service personnel should perform all other operations When working on air conditioning 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 ...

Page 2: ... necessary WARNING UNIT OPERATION AND SAFETY HAZARD Failure to follow this warning could cause personal injury death and or equipment damage Puron R 410A refrigerant systems operate at higher pressures than standard R 22 systems Do not use R 22 service equipment or components on Puron refrigerant equipment WARNING FIRE EXPLOSION HAZARD Failure to follow this warning could result in personal injury...

Page 3: ...erglass 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 To remove the filters 1 Grasp the bottom flange of the upper panel 2 Lift up and swing the bottom out until the panel dis engages and pulls out 3 Reach inside and extract the filters from the filter rack 4 Replace these filters as ...

Page 4: ...ion or away from fan to increase tension Ensure the blower shaft and the motor shaft are parallel to each other pulleys aligned Tighten all bolts when finished To replace the belt 1 Use a belt with same section type or similar size Do not substitute a FHP type belt When installing the new belt do not use a tool screwdriver or pry bar to force the belt over the pulley flanges this will stress the b...

Page 5: ... smaller pitch diameter than provided on the original factory pulley Change fan wheel speed by changing the fan pulley larger pitch diameter to reduce wheel speed smaller pitch diameter to increase wheel speed or select a new system both pulleys and matching belt s Before changing pulleys to increase fan wheel speed check the fan performance at the target speed and airflow rate to determine new mo...

Page 6: ...container and part number P902 0305 for a 5 gallon container It is recommended that all coils including standard aluminum pre coated copper copper or E coated coils be cleaned with the Totaline environmentally sound coil cleaner as described below Coil cleaning should be part of the unit s regularly scheduled maintenance procedures to ensure long life of the coil Failure to clean the coils may res...

Page 7: ...eaner with a vertical up and down motion Avoid spraying in horizontal pattern to minimize po tential for fin damage 7 Ensure cleaner thoroughly penetrates deep into finned areas 8 Interior and exterior finned areas must be thoroughly cleaned 9 Finned surfaces should remain wet with cleaning solution for 10 minutes 10 Ensure surfaces are not allowed to dry before rinsing Reapplying cleaner as neede...

Page 8: ...the cylinder as a vapor Refrigerant Charge Amount of refrigerant charge is listed on the unit s nameplate Refer to Carrier GTAC2 5 Charging Recovery Recycling and Reclamation training manual and the following procedures Unit panels must be in place when unit is operating during the charging procedure No Charge Use standard evacuating techniques After evacuating system weigh in the specified amount...

Page 9: ...E A04 3 A05 4 A06 5 A07 6 A08 7 5 A09 8 5 A12 10 EXAMPLE Model 48TC A04 Outdoor Temperature 85_F 29_C Suction Pressure 140 psig 965 kPa Suction Temperature should be 60_F 16_C COOLING CHARGING CHARTS C08203 Fig 12 Cooling Charging Charts 48TC ...

Page 10: ...10 COOLING CHARGING CHARTS cont C08204 C08228 Fig 12 cont Cooling Charging Charts 48TC ...

Page 11: ...11 COOLING CHARGING CHARTS cont C08229 C08437 Fig 12 cont Cooling Charging Charts 48TC ...

Page 12: ...12 COOLING CHARGING CHARTS cont C08438 C08439 Fig 12 cont Cooling Charging Charts 48TC ...

Page 13: ...riction 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 or ...

Page 14: ...otating 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 filter drier in liquid line A liquid line filter drier designed for use with Puron refrigerant i...

Page 15: ...internal circuit of the receptacle to trip and open the receptacle Check for proper grounding wires and power line phasing if the GFCI receptacle does not trip as required Press the RESET button to clear the tripped condition Fuse on powered type The factory fuse is a Bussman Fusetron T 15 non renewable screw in Edison base type plug fuse Using unit mounted convenience outlets Units with unit moun...

Page 16: ... chamber When a sufficient amount of smoke is detected in the sensing chamber the sensor signals an alarm state and the 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...

Page 17: ...sensor be relocated to its operating location and the tubing to the sampling tube be connected See installation steps below Return Air Sampling Tube C08129 Fig 20 Return Air Sampling Tube Location Completing Installation of Return Air Smoke Sensor Flexible Exhaust Tubes Screws Sample Tube C08126 Fig 21 Return Air Detector Shipping Position 1 Unscrew the two screws holding the Return Air Sensor det...

Page 18: ...al annunciation functions Additional Application Data Refer to Catalog No HKRNKA 1XA for discussions on additional control features of these smoke detectors including multiple unit coordination See Fig 23 Sensor and Controller Tests Sensor Alarm Test The sensor alarm test checks a sensor s ability to signal an alarm state This test requires that you use a field provided SD MAG test magnet OPERATIO...

Page 19: ...N Table 2 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 Dirty Sensor Test Procedure 1 Hold the test magnet where indicated on the side of the sensor housing for two seconds 2 Verify that the sensor s Dirty LED flashes OPERATIONAL TEST HAZARD Failure to follow this caution may result in personnel and authority concern...

Page 20: ...activate all automatic alarm responses CAUTION Dirty Sensor 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 th...

Page 21: ... differentiate which sensor signals an alarm or trouble condition Check each sensor for Alarm or Trouble status indicated by LED Clear the condition that has generated the trip at this sensor Then reset the sensor by pressing and holding the reset button on the side for 2 seconds Verify that the sensor s Alarm and Trouble LEDs are now off At the controller clear its Alarm or Trouble state by press...

Page 22: ...0_F 5_F 1_C 3_C Reset is automatic at 45_F 7_C Supply Indoor Fan Motor Protection Disconnect and lockout power when servicing fan motor The standard supply fan motor is equipped with internal overcurrent and overtemperature protection Protection devices reset automatically The High Static option supply fan motor is equipped with a pilot circuit Thermix combination overtemperature overcurrent prote...

Page 23: ... size selections Low NOx models include specially sized orifices and use of different flue flow limits and tube baffles Because of these extra features conversion of these models to LP is not recommended Fuel line pressure entering unit gas valve must remain within specified range Table 6 Liquid Propane Supply Line Pressure Ranges UNIT MODEL UNIT SIZE MIN MAX 48TCD E F 48TCS R T All 11 0 in wg 274...

Page 24: ... bi monthly to determine proper cleaning frequency To access burner section slide the sliding burner partition out of the unit To inspect blower wheel shine a flashlight into draft hood opening If cleaning is required remove motor and wheel as follows 1 Slide burner access panel out 2 Remove the 7 screws that attach induced draft motor housing to vestibule plate See Fig 31 3 The blower wheel can b...

Page 25: ...rom rack Mark each burner to identify its position before re moving from the rack 3 Use a soft brush to clean burners and cross over port as required 4 Adjust spark gap See Fig 35 and Fig 36 5 If factory orifice has been removed check that each orifice is tight at its threads into the manifold pipe and that orifice projection does not exceed maximum valve See Fig 32 6 Reinstall burners on rack in ...

Page 26: ...ner 10 Turn off unit remove pressure manometer and re place the 1 8 in pipe fitting on the gas manifold See Fig 32 Limit Switch Remove blower access panel Limit switch is located on the fan deck See Fig 28 Burner Ignition Unit is equipped with a direct spark ignition 100 lockout system Integrated Gas Unit Controller IGC is located in the control box See Fig 34 The IGC contains a self diagnostic LE...

Page 27: ... pause exists between LED error code flashes If more than one error code exists all applicable codes will be displayed in numerical sequence Indicates a code that is not an error The unit will continue to operate when this code is displayed IMPORTANT Refer to Troubleshooting Table 13 and Table 14 for additional information Orifice Replacement This unit uses orifice type LH32RFnnn where nnn indicat...

Page 28: ...28 Single Stage 2 Stage C08210 Fig 37 Gas Valves Red LED Status C08452 Fig 38 Integrated Gas Control IGC Board 48TC ...

Page 29: ... J2 1 GV Gas valve heat stage 1 gas section relay J2 11 12 Table 10 Orifice Sizes ORIFICE DRILL SIZE CARRIER PART NUMBER DRILL DIA in 30 LH32RF129 0 1285 1 8 LH32RF125 0 1250 31 LH32RF120 0 1200 32 LH32RF116 0 1160 33 LH32RF113 0 1130 34 LH32RF111 0 1110 35 LH32RF110 0 1100 36 LH32RF105 0 1065 37 LH32RF104 0 1040 38 LH32RF102 0 1015 39 LH32RF103 0 0995 40 LH32RF098 0 0980 41 LH32RF096 0 0960 42 LH...

Page 30: ...BTUH Nominal 250 000 BTUH Nominal 180 000 224 000 BTUH Nominal NG Orifice Size LP Orifice Size NG Orifice Size LP Orifice Size NG Orifice Size LP Orifice Size 0 2000 610 311 493 30 463 311 483 2000 610 321 503 30 473 321 493 3000 914 321 503 311 473 321 493 4000 1219 331 503 311 483 331 493 5000 1524 331 514 311 483 331 503 6000 1829 341 514 311 483 341 503 7000 2134 351 514 321 493 351 503 8000 2...

Page 31: ...t stage heating the minimum temperature of air entering the dimpled heat exchanger is 50_F continuous and 45_F intermittent for standard heat exchangers and 40_F continuous and 35_F intermittent for stainless steel heat exchangers To operate at lower mixed air temperatures a field supplied outdoor air thermostat must be used to initiate both stages of heat when the temperature is below the minimum...

Page 32: ...s pressure at manifold Clock gas meter for input If too low increase manifold pressure or replace with correct orifices Unit undersized for application Replace with proper unit or add additional unit Restricted airflow Clean filter replace filter or remove any restrictions Blower speed too low Use high speed tap increase fan speed or install optional blower as suitable for individual units Limit s...

Page 33: ...inutes Check igniter and flame sen sor electrode spacing gaps etc Check flame sense and igniter wiring Check gas valve operation and gas supply Check gas valve connections to IGC terminals BRN lead must be on Pin 11 6 Flashes Induced Draft Motor Fault If heat off no gas heating If heat on gas valve Off and inducer On Inducer sense nor mal or heat call W Off Inducer sense On when heat call Off or i...

Page 34: ...mation Have a copy of this manual available at unit start up The PremierLink controller requires the use of a Carrier electronic thermostat or a CCN connection for time broadcast to initiate its internal timeclock This is necessary for broadcast of time of day functions occupied unoccupied NOTE PremierLink controller is shipped in Sensor mode To be used with a thermostat the PremierLink controller...

Page 35: ...35 C08248 Fig 42 PremierLink Wiring Schematic 48TC ...

Page 36: ...utdoor air CO2 sensor Refer to Table 16 for accessory part numbers Field connections Field connections for accessory sensor and input devices are made at the 16 pole terminal block TB1 located on the control box bottom shelf in front of the PremierLink control Some input devices also require a 24 vac signal source connect at LCTB terminal R at THERMOSTAT connection strip for this signal source See...

Page 37: ...ensor 33ZCT55CO2 Space temperature and CO2 room sensor with override 33ZCT56CO2 Space temperature and CO2 room sensor with override and setpoint Table 17 Space Sensor Mode TB1 TERMINAL FIELD CONNECTION INPUT SIGNAL 1 T55 SEN T56 SEN Analog 10k thermistor 2 RMTOCC Discrete 24VAC 3 T55 SEN T56 SEN Analog 10k thermistor 4 CMPSAFE Discrete 24VAC 5 T56 SET Analog 10k thermistor 6 FSD Discrete 24VAC 7 L...

Page 38: ...ED WHT GND BLK CCN COM SENSOR WIRING JUMPER TERMINALS AS SHOWN BLK T56 C08202 Fig 45 T 56 Internal Connections SEN J6 7 J6 6 1 3 TB1 PL SEN SET Jumper TB1 PL J6 5 5 SET C08213 Fig 46 PremierLink T 56 Sensor Connect Thermostat A 7 wire thermostat connection requires a 24 v power source and a common connection Use the R and C terminals on the LCTB s THERMOSTAT connection strip for these Connect the ...

Page 39: ...o the enthalpy controller HH57AC077 See Fig 49 LED A B C D TR TR1 SO SR 2 3 1 BRN RED GRAY ORN GRAY RED WIRE HARNESS IN UNIT BLK RED S RETURN AIR ENTHALPY SENSOR S OUTDOOR AIR ENTHALPY SENSOR ENTHALPY CONTROLLER NOTES 1 Remove factory installed jumper across SR and before connecting wires from return air sensor 2 Switches shown in high outdoor air enthalpy state Terminals 2 and 3 close on low outd...

Page 40: ...Sensor PL 24 VAC C08274 Fig 51 Indoor CO2 Sensor 33ZCSENCO2 Connections Refer to Form 33CS 58SI PremierLink Installation Start up and Configuration Instructions for detailed configuration information Outdoor Air Quality Sensor PNO 33ZCSENCO2 plus weatherproof enclosure The outdoor air CO2 sensor is designed to monitor carbon dioxide CO2 levels in the outside ventilation air and interface with the ...

Page 41: ...indicating proper supply fan operation Install the differential pressure switch in the supply fan section according to switch manufacturer s instructions Arrange the switch contact to be open on no flow and to close as pressure rises indicating fan operation Connect one side of the switch s NO contact set to LCTB s THERMOSTAT R terminal Connect the other side of the NO contact set to TB1 8 Setpoin...

Page 42: ...for the entire network is recommended to simplify installation and checkout See Table 20 for the recommended color code Table 20 Color Code Recommendations SIGNAL TYPE CCN BUS WIRE COLOR CCN PLUG PIN NUMBER Red 1 Ground White 2 Black 3 Connect the CCN lead typically RED to the unit s TB1 12 terminal Connect the CCN ground lead typically WHT to the unit s TB1 14 terminal Connect the CCN lead typica...

Page 43: ...43 C07129 Fig 59 RTU MP Multi Protocol Control Board 48TC ...

Page 44: ...44 44 C08458 Fig 60 RTU MP System Control Wiring Diagram 48TC ...

Page 45: ...48 50H T 2T for complete configuration of RTU MP operating sequences and troubleshooting information Refer to RTU MP 3rd Party Integration Guide for details on configuration and troubleshooting of connected networks Have a copy of these manuals available at unit start up The RTU MP controller requires the use of a Carrier space sensor A standard thermostat cannot be used with the RTU MP system Sup...

Page 46: ...T 59 The T 59 space sensor requires a separate isolated power supply of 24 VAC See Fig 61 for internal connections at the T 59 Connect the SEN terminal BLU to RTU MP J20 1 Connect the COM terminal BRN to J20 2 Connect the SET terminal STO or BLK to J20 3 OR SET SEN OPB COM PWR BLU SPT BLK STO 24 VAC SENSOR WIRING POWER WIRING BRN COM NOTE Must use a separate isolated transformer C07132 Fig 63 Spac...

Page 47: ...he sensor where it is influenced by the supply air the sensor gives inaccurate readings if the supply air is blown directly onto the sensor or if the supply air does not have a chance to mix with the room air before it is drawn into the return airstream Wiring the Indoor Air Quality Sensor For each sensor use two 2 conductor 18 AWG American Wire Gage twisted pair cables unshielded to connect the s...

Page 48: ...e accessory Power Exhaust contactor coil s per Fig 66 Power Exhaust J11 3 C THERMOSTAT PEC TAN GRA LCTB C08464 Fig 66 RTU MP Power Exhaust Connections Space Relative Humidity Sensor The RH sensor is not used with 48TC models at this time Communication Wiring Protocols General Protocols are the communication languages spoken by control devices The main purpose of a protocol is to communicate inform...

Page 49: ...able to plug J15 The RTU MP s baud rate must be set to 38 4k to communicate with the LON OC The address switches SW1 SW2 are not used with LonWorks Local Access BACview6 Handheld The BACview6 is a keypad display interface used to connect to the RTU MP to access the control information read sensor values and test the RTU see Fig 68 This is an accessory interface that does not come with the MP contr...

Page 50: ...er second 3 flashes then off Control module has just been formatted 2 flashes per second 4 flashes then pause Two or more devices on this network have the same ARC156 network address 2 flashes per second On Exec halted after frequent system errors or control programs halted 5 flashes per second On Exec start up aborted Boot is running 5 flashes per second Off Firmware transfer in progress Boot is ...

Page 51: ... ured with or without switch Dirty Filter supply fan run time exceeded filter switch configuration wrong Switch Configuration Alarm sw_cfg_alarm Alarm Generated Disable misconfi gured switch functions Configure correctly More than one binary input is configured for the same purpose More then one discrete input is configured to provide the same function Misconfigured Analog In put an_cfg_alarm Alar...

Page 52: ...r safety and humidistat would function normally and Fan Status inputs 5 8 will be interpreted as No Function Misconfigured Analog Input This occurs if more than one analog input inputs 1 2 is configured for the same sensor When this happens the two inputs will be disabled as inputs This alarm will automatically be cleared when configuration is corrected An example of this would be Input 1 IAQ Sens...

Page 53: ...ed in flash memory Boot16 H v2 06 001 Jun 19 2007 RTU MP DRIVER v2 09 050 Jun 26 2007 Reset counters 11 Power failures 0 Brownouts 18 Commanded warm boots 22 Commanded cold boots 0 System errors 0 Watchdog timeouts System error message history Type Specific Warning message history Information message history POWERUP BACnet reinitialize warmstart 06 29 07 10 49 40 Menu file not found 06 29 07 10 48...

Page 54: ...any positive integer The default is 10 and should be ideal for the majority of applications In cases where the controller is the target of many requests this number could be increased as high as 100 or 200 NOTE MS TP networks can be comprised of both Master and Slave nodes Valid MAC addresses for Master nodes are 0 127 and valid addresses for Slave nodes are 0 254 NOTE See RTU MP 3rd Party Integra...

Page 55: ...4 Verify that the BAS and the controller have the same communication settings 8 data bits No Parity and 1 stop bit 5 Verify that the controller has a unique N2 slave ad dress on the N2 bus The controller s N2 slave ad dress is set by its rotary address switches 6 Verify proper wiring between the BAS and the con troller 7 Verify that the BAS is reading or writing to the proper network point address...

Page 56: ...alled remote minimum position POT remove black wire jumper between P and P1 and set control minimum position POT to the minimum position 8 7 C06028 Fig 72 EconoMi er IV Wiring 4 3 5 2 8 6 7 1 10 11 9 12 PINK VIOLET BLACK BLUE YELLOW NOTE 1 NOTE 3 RUN 500 OHM RESISTOR 50HJ540573 ACTUATOR ASSEMBLY RED WHITE ECONOMISER2 PLUG DIRECT DRIVE ACTUATOR 4 20mA SIGNAL OAT SENSOR 4 20 mA TO J9 ON PremierLink ...

Page 57: ...gnal 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 C06053 Fig 74 EconoMi er IV Functional View E...

Page 58: ...ion of the EconoMi er IV and unit Outdoor Dry Bulb Changeover The standard controller is shipped from the factory configured for outdoor dry bulb changeover control The outdoor air and supply air temperature sensors are included as standard For this control mode the outdoor temperature is compared to an adjustable setpoint selected on the control If the outdoor air temperature is above the setpoin...

Page 59: ...e the outdoor enthalpy changeover setpoint the outdoor air damper moves to its minimum position The outdoor enthalpy changeover setpoint is set with the outdoor enthalpy setpoint potentiometer on the EconoMi er IV controller The setpoints are A B C and D See Fig 80 The factory installed 620 ohm jumper must be in place across terminals SR and SR on the EconoMi er IV controller CONTROL CURVE A B C D...

Page 60: ... Settings If a separate field supplied transformer is used to power the IAQ sensor the sensor must not be grounded or the EconoMi er IV control board will be damaged When using demand ventilation the minimum damper position represents the minimum ventilation position for VOC volatile organic compounds ventilation requirements The maximum demand ventilation position is used for fully occupied venti...

Page 61: ... are open removing the 24 v signal from terminal N the EconoMi er IV will be in unoccupied mode Demand Control Ventilation DCV When using the EconoMi er IV for demand controlled ventilation there are some equipment selection criteria which should be considered When selecting the heat capacity and cool capacity of the equipment the maximum ventilation rate must be evaluated for design conditions Th...

Page 62: ...sor can be changed anytime after the sensor is energized Follow the steps below to change the non standard settings 1 Press Clear and Mode buttons Hold at least 5 seconds until the sensor enters the Edit mode 2 Press Mode twice The STDSET Menu will appear 3 Use the Up Down button to toggle to the NONSTD menu and press Enter 4 Use the Up Down button to toggle through each of the nine variables star...

Page 63: ...m Position potentiometer to midpoint The actuator should drive to between 20 and 80 open 4 Turn the DCV Maximum Position potentiometer to fully CCW The actuator should drive fully closed 5 Turn the Minimum Position potentiometer to mid point The actuator should drive to between 20 and 80 open 6 Turn the Minimum Position Potentiometer fully CW The actuator should drive fully open 7 Remove the jumpe...

Page 64: ...64 C08308 Fig 83 48TC Typical Unit Wiring Diagram Power A06 208 230 3 60 48TC ...

Page 65: ...65 C08317 Fig 84 48TC Unit Wiring Diagram Control A06 48TC ...

Page 66: ...re completed and tight Be sure that wires are not in contact with refrigerant tubing or sharp edges d Inspect coil fins If damaged during shipping and handling carefully straighten fins with a fin comb 4 Verify the following conditions a Make sure that condenser fan blade are correctly positioned in fan orifice See Condenser Fan Adjustment section for more details b Make sure that air filter s is ...

Page 67: ...e lever above room temperature 4 The induced draft motor will start 5 After a call for heating the main burners should light within 5 seconds If the burner does not light then there is a 22 second delay before another 5 second try If the burner still does not light the time delay is repeated If the burner does not light within 15 minutes there is a lockout To reset the control break the 24 v power...

Page 68: ...ff if it is on move the switch from position 1 to position 0 and then apply power to the controller for a minimum of 5 seconds At this point no action occurs but the controller is now ready for the memory to reset Remove power to the controller again and move the switch from position 0 to position 1 This time when power is applied the memory will reset to factory defaults The controller address wi...

Page 69: ...his point is exceeded the corresponding alarm will be generated and must be manually cleared on the alarm reset screen after the maintenance has been completed The timer will then begin counting its runtime again for the next maintenance interval Factory Default 0 hr NOTE Setting this configuration timer to 0 disables the alarm Compressor2 Service Hours This refers to the timer set for the Compres...

Page 70: ...d to be either Normally Open N O or Normally Closed N C Input 9 is factory and field wired to pin J5 7 Do not connect inputs to both locations one function per input Factory Default Humidistat and N O Space Sensor Type This tells the controller what type of space sensor is installed to run the unit The three types that can be used are the T55 space sensor the T56 space sensor or the RS space senso...

Page 71: ...tor Password 1111 The ADMIN password will always override the user password OPERATING SEQUENCES Base Unit Controls Cooling Units Without Economizer When thermostat calls for cooling terminals G and Y1 are energized The indoor fan contactor IFC and compressor contactor are energized and indoor fan motor compressor and outdoor fan starts The outdoor fan motor runs continuously while unit is cooling ...

Page 72: ...When G is active the PremierLink controller will then determine if outdoor conditions are suitable for economizer cooling when an economizer damper is available A valid OAT SPT CCN space temperature and SAT supply air temperature sensor MUST be installed for proper economizer operation It recommended that an outdoor or differential enthalpy sensor also be installed If one is not present then a jum...

Page 73: ...s IAQ minimum position value using a PID loop on the IAQI deviation from the IAQS The IAQ minimum position is then compared against the user configured minimum position MDP and the greatest value becomes the final minimum damper position IQMP If the calculated IAQ Minimum Position is greater than the IAQ maximum damper position IAQMAXP decision in the SERVICE configuration table then it will be cl...

Page 74: ... UCSP Unoccupied Cooling Deadband The indoor fan will be turned on by the staging algorithm S OAT DXLOCK or OAT DX Lockout is disabled If all of the above conditions are met the CCSR will be calculated otherwise it is set to its maximum value and DX stages is set to 0 If only the last condition is not true and an economizer is available it will be used to cool the space The submaster loop uses the...

Page 75: ...alculation Values represented in the right side of the equation can be found in the SERVICE configuration table descriptions in this manual Note that that the OAT is taken into consideration to avoid large changes in damper position when the OAT is cold ECONPOS SubGain x ECONSR SAT CTRVAL where SubGain OAT TEMPBAND ESG 1 If the OAT DXLOCK DX Cool Lockout setpoint then the damper will be modulated ...

Page 76: ...ition S and the SAT SPT 10_F There is also a SAT tempering routine that will act as SAT low limit safety to prevent the SAT from becoming too cold should the economizer fail to close One stage of heating will be energized if it is not in the Cooling or Free Cooling mode and the OAT is below 55_F and the SAT is below 40_F It will deenergize when the SAT SPT 10_F Indoor Air Quality If the optional i...

Page 77: ...TSP or SPT OAT 3_F Temperature Compensated Start This function will run when the controller is in unoccupied state and will calculate early start bias time SBT based on space temperature deviation from occupied setpoints in minutes per degree The following conditions will be met for the function to run S Unit is in unoccupied state S Next occupied time is valid S Current time of day is valid S Val...

Page 78: ...d as a linked air source in a ComfortIDt VAV system The ComfortID VAV system will NOT function correctly when applied with a PremierLink controller as the air source resulting in poor comfort control and possible equipment malfunction NOTE The PremierLink controller can be used as an air source in a 3V Pressure Independent PI System a 3V Linkage Coordinator with ComfortID PI Zone Controllers but i...

Page 79: ...Building Automation System that supports native BACnet scheduling is scheduling the unit With the Occupancy Source set to BACnet schedule the BAS will control the unit through network communication and it s own scheduling function BAS On Off The Building Automation System is scheduling the unit via an On Off command to the BAS ON OFF software point The Building Automation System can be speaking BA...

Page 80: ...rol it will be energized whenever the economizer exceeds the power exhaust setpoint and disabled when the economizer drops below the setpoint by a fixed hysteresis of 10 Heating The heating outputs are controlled by the Heating Control PID Loop and Heating Stages Capacity algorithm They will be used to calculate the desired number of stages needed to satisfy the space by comparing the SPT to the O...

Page 81: ... configured demand limit setpoint value and remain in effect until the BACnet demand limit variable receives a 0 value FASTENER TORQUE VALUES See Table 32 for torque values Table 32 Torque Values Supply fan motor mounting 120 12 in lbs Supply fan motor adjustment plate 120 12 in lbs Motor pulley setscrew 72 5 in lbs Fan pulley setscrew 72 5 in lbs Blower wheel hub setscrew 72 5 in lbs Bearing lock...

Page 82: ...on 09 8 5 Ton 2 RTU MP multi protocol controller 06 5 Ton 12 10 Ton 07 6 Ton Design Rev Factory assigned Sensor Options A None Voltage B RA smoke detector 1 575 3 60 C SA smoke detector 3 208 230 1 60 D RA SA smoke detector 5 208 230 3 60 E CO2 sensor1 6 460 3 60 F RA smoke detector CO2 1 G SA smoke detector CO2 1 Coil Options Outdoor Coil Indoor Coil H RA SA smoke detector CO2 1 A Al Cu Al Cu B P...

Page 83: ...10 x 10 10 x 10 10 x 10 10 x 10 Medium Static 1 phase Motor Qty Drive Type 1 Belt 1 Belt 1 Belt Max BHP 1 2 1 2 1 5 RPM Range 770 1175 770 1175 1035 1466 Motor Frame Size 48 56 56 Fan Qty Type 1 Centrifugal 1 Centrifugal 1 Centrifugal Fan Diameter in 10 x 10 10 x 10 10 x 10 Medium Static 3 phase Motor Qty Drive Type 1 Belt 1 Belt 1 Belt 1 Belt Max BHP 1 2 1 2 2 4 2 9 RPM Range 770 1175 770 1175 10...

Page 84: ...gal 1 Centrifugal Fan Diameter in 15 x 15 15 x 15 15 x 15 Medium Static 3 phase Motor Qty Drive Type 1 Belt 1 Belt 1 Belt Max BHP 2 9 2 4 3 7 RPM Range 733 949 690 936 838 1084 Motor Frame Size 56 56 56 Fan Qty Type 1 Centrifugal 1 Centrifugal 1 Centrifugal Fan Diameter in 15 x 15 15 x 15 15 x 15 High Static 3 phase Motor Qty Drive Type 1 Belt 1 Belt 1 Belt Max BHP 5 25 3 7 5 25 RPM Range 909 1102...

Page 85: ...burners total 1 or 2 3 1 or 2 3 1 or 2 3 Rollout switch opens Closes 195 115 195 115 195 115 Temperature rise 50 80 50 80 50 80 Liquid Propane Heat LOW of stages of burners total 1 2 1 2 1 2 1 2 Rollout switch opens Closes 195 115 195 115 195 115 195 115 Temperature rise 25 55 25 55 25 55 25 55 MED of stages of burners total 1 or 2 3 1 or 2 3 1 or 2 3 1 or 2 3 Rollout switch opens Closes 195 115 1...

Page 86: ...max 50 80 50 80 50 80 Liquid Propane Heat Connection size 1 2 NPT 1 2 NPT 1 2 NPT 1 2 NPT LOW of stages of burners total 1 2 1 2 1 2 1 2 Rollout switch opens Closes 195 115 195 115 195 115 195 115 Temperature rise min max 25 55 25 55 25 55 25 55 Connection size 1 2 NPT 1 2 NPT 1 2 NPT 1 2 NPT MED of stages of burners total 1 or 2 3 1 or 2 3 1 or 2 3 1 or 2 3 Rollout switch opens Closes 195 115 195...

Page 87: ... or accessories 3 Tabular data accounts for pressure loss due to clean filters unit casing and wet coils Factory options and accessories may add static pressure losses 4 The Fan Performance tables offer motor drive recommendations In cases when two motor drive combinations would work Carrier recommended the lower horsepower option 5 For information on the electrical properties of Carrier s motors ...

Page 88: ...g field supplied motor pulley part number KR11HY161 and belt part number KR30AE035 48TC 04 1 Phase 3 Ton Vertical Supply CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 0 2 0 4 0 6 0 8 1 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Field Supplied Drive1 Standard Static Option Medium Static Option 900 567 0 15 688 0 22 786 0 30 871 0 37 947 0 44 975 591 0 17 710 0 26 807 0 34 891 0 42 966 0 49 1050 615 0...

Page 89: ...Recommend using field supplied drive part number KR11AG006 and belt part number KR30AE039 48TC 04 3 Phase 3 Ton Vertical Supply CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 0 2 0 4 0 6 0 8 1 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Field Supplied Drive1 Standard Static Option Medium Static Option 900 567 0 15 688 0 22 786 0 30 871 0 37 947 0 44 975 591 0 17 710 0 26 807 0 34 891 0 42 966 0 49 105...

Page 90: ...ed 1 Recommend using field supplied motor pulley part number KR11HY161 and belt part number KR30AE035 48TC 05 1 Phase 4 Ton Vertical Supply CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 0 2 0 4 0 6 0 8 1 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Standard Static Option Medium Static Option 1200 666 0 26 778 0 37 871 0 47 952 0 57 1025 0 67 1300 701 0 31 810 0 43 901 0 54 981 0 65 1053 0 76 1400 737 ...

Page 91: ...ecommend using field supplied fan pulley part no KR11AZ506 motor pulley part no KR11HY181 and belt part no KR30AE041 48TC 05 3 Phase 4 Ton Vertical Supply CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 0 2 0 4 0 6 0 8 1 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Standard Static Option Medium Static Option 1200 666 0 26 778 0 37 871 0 47 952 0 57 1025 0 67 1300 701 0 31 810 0 43 901 0 54 981 0 65 1053...

Page 92: ... Fan Performance Notes on page 87 Boldface indicates field supplied drive is required 48TC 06 1 Phase 5 Ton Vertical Supply CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 0 2 0 4 0 6 0 8 1 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Standard Static Option Medium Static Option 1500 848 0 42 968 0 55 1069 0 68 1158 0 80 1238 0 94 1625 897 0 51 1013 0 65 1111 0 79 1198 0 93 1277 1 07 1750 947 0 61 1059 0...

Page 93: ...ired 1 Recommend using field supplied fan pulley part number KR11AZ506 motor pulley part number KR11HY191 and belt part number KR30AE042 48TC 06 3 Phase 5 Ton Vertical Supply CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 0 2 0 4 0 6 0 8 1 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Standard Static Option Medium Static Option 1500 848 0 42 968 0 55 1069 0 68 1158 0 80 1238 0 94 1625 897 0 51 1013 0 65...

Page 94: ...end using field supplied fan pulley part number KR11AZ406 motor pulley part number KR11HY151 and belt part number KR29AF035 48TC 07 3 Phase 6 Ton Vertical Supply CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 0 2 0 4 0 6 0 8 1 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Standard Static Option Medium Static Option 1800 967 0 63 1075 0 80 1170 0 97 1255 1 13 1333 1 28 1950 1029 0 77 1132 0 96 1223 1 14 ...

Page 95: ... field supplied drive is required 1 Recommend using field supplied fan pulley part no KR11AZ002 and belt part no KR29AF054 48TC 08 3 PHASE 7 5 TON VERTICAL SUPPLY CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 0 2 0 4 0 6 0 8 1 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Standard Static Option Medium Static Option 2250 513 0 54 595 0 76 665 1 01 728 1 27 786 1 56 2438 541 0 65 620 0 89 688 1 14 750 1 ...

Page 96: ...fan pulley part no KR11AK012 and belt part no KR29AF055 2 Recommend using field supplied motor pulley part no KR11HY310 fan pulley part no KR11AZ002 and belt part no KR29AF054 48TC 09 3 PHASE 8 5 TON VERTICAL SUPPLY CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 0 2 0 4 0 6 0 8 1 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Standard Static Option Medium Static Option 2550 526 0 51 600 0 65 666 0 79 727...

Page 97: ...ed drive is required 1 Recommend using field supplied fan pulley part no KR11AD912 and belt part no KR29AF051 2 Recommend using field supplied motor pulley part no KR11HY410 48TC 12 3 PHASE 10 TON VERTICAL SUPPLY CFM AVAILABLE EXTERNAL STATIC PRESSURE in wg 0 2 0 4 0 6 0 8 1 0 RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP Standard Static Option Medium Static Option 3000 616 0 79 689 0 97 757 1 16 821 1 ...

Page 98: ...380 1337 1294 1251 1207 1164 1121 1078 1035 High Static 3 phase Standard Static 1175 1135 1094 1054 1013 973 932 892 851 811 770 Medium Static 1466 1423 1380 1337 1294 1251 1207 1164 1121 1078 1035 High Static 1687 1649 1610 1572 1533 1495 1457 1418 1380 1341 1303 07 3 phase Standard Static 1457 1419 1380 1342 1303 1265 1227 1188 1150 1111 1073 Medium Static 1518 1484 1449 1415 1380 1346 1311 1277...

Page 99: ...75 3 60 518 633 3 8 37 325 0 6 Std Static 1000 2 0 71 1 9 Med Static 2120 2 1 80 2 0 High Static 2120 2 1 80 2 0 48TC 05 4 TONS V Ph Hz VOLTAGE COMP ea OFM ea IFM RANGE RLA LRA WATTS FLA TYPE Max WATTS Max AMP Draw EFF at Full Load FLA MIN MAX 208 1 60 187 253 21 8 117 325 1 5 Std Static 1000 5 1 70 4 9 Med Static 1850 7 4 78 7 0 230 1 60 187 253 21 8 117 325 1 5 Std Static 1000 5 1 70 4 9 Med Sta...

Page 100: ...325 0 8 Std Static 2120 2 7 80 2 6 Med Static 2615 3 6 81 3 4 High Static 2615 3 6 81 3 4 575 3 60 518 633 5 8 39 325 0 6 Std Static 2120 2 1 80 2 0 Med Static 3775 2 9 81 2 8 High Static 3775 2 9 81 2 8 48TC 07 6 TONS V Ph Hz VOLTAGE COMP ea OFM ea IFM RANGE RLA LRA WATTS FLA TYPE Max WATTS Max AMP Draw EFF at Full Load FLA MIN MAX 208 3 60 187 253 19 0 12 325 1 5 Std Static 2120 5 5 80 5 2 Med S...

Page 101: ... 5 80 5 2 Med Static 2120 5 5 80 5 2 High Static 2694 10 5 80 10 0 230 3 60 187 253 29 5 195 325 1 5 Std Static 1448 5 5 80 5 2 Med Static 2120 5 5 80 5 2 High Static 2694 10 5 80 10 0 460 3 60 414 506 14 7 95 325 0 8 Std Static 1448 2 7 80 2 6 Med Static 2120 2 7 80 2 6 High Static 2694 4 6 80 4 4 575 3 60 518 633 12 2 80 325 0 6 Std Static 1379 2 5 80 2 4 Med Static 1390 2 1 80 2 0 High Static 3...

Page 102: ...460 3 60 STD 0 25 1 0 10 7 15 0 10 49 11 7 15 0 12 50 MED 10 7 15 0 10 49 11 7 15 0 12 50 HIGH 11 2 15 0 11 58 12 2 15 0 12 59 575 3 60 STD 0 24 1 9 8 5 15 0 8 44 10 4 15 0 11 46 MED 8 5 15 0 8 44 10 4 15 0 11 46 HIGH 8 6 15 0 9 50 10 5 15 0 11 52 48TC 06 208 230 1 60 STD 0 48 1 9 39 2 60 0 37 150 41 1 60 0 40 152 MED 41 3 60 0 40 175 43 2 60 0 42 177 208 230 3 60 STD 0 48 1 9 25 9 30 0 25 126 27 ...

Page 103: ...28 157 HIGH 29 9 45 30 159 31 7 45 32 161 575 3 60 STD 0 24 3 8 18 5 30 18 95 22 3 30 22 99 MED 19 3 30 19 106 23 1 30 23 110 HIGH 22 1 30 22 120 25 9 30 26 124 1Fuse or breaker LEGEND CO Convenient outlet DISC Disconnect FLA Full load amps IFM Indoor fan motor LRA Locked rotor amps MCA Minimum circuit amps MOCP Maximum over current protection PE Power exhaust UNPWRD CO Unpowered convenient outlet...

Page 104: ...48TM500213 04 48TM500748 06 460 3 60 48TM500213 04 48TM500748 06 575 3 60 48TM500213 04 48TM500215 06 A08 208 230 3 60 48TM500929 05 48TM500803 05 460 3 60 48TM500929 05 48TM500803 05 575 3 60 48TM500929 05 48TM500804 05 A09 208 230 3 60 48TM500929 05 48TM500803 05 460 3 60 48TM500929 05 48TM500803 05 575 3 60 48TM500929 05 48TM500804 05 A12 208 230 3 60 48TM500929 05 48TM500803 05 460 3 60 48TM50...

Page 105: ...DIX VI MOTORMASTER SENSOR LOCATIONS C08259 Fig 85 48TC A04 Outdoor Circuiting C08260 Fig 86 48TC A05 06 Outdoor Circuiting C08261 Fig 87 48TC A07 Outdoor Circuiting C08262 Fig 88 48TC A08 Outdoor Circuiting 48TC ...

Page 106: ...or Circuiting Copyright 2008 Carrier Corp S 7310 W Morris St S Indianapolis IN 46231 Printed in U S A Edition Date 08 08 Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Catalog No 48TC 2SM Replaces 48TC 1SM 48TC ...

Page 107: ... LEVEL j CHECK FAN WHEEL AND PROPELLER FOR LOCATION IN HOUSING ORIFICE AND VERIFY SETSCREW IS TIGHT j VERIFY PULLEY ALIGNMENT AND BELT TENSION ARE CORRECT III START UP ELECTRICAL SUPPLY VOLTAGE L1 L2 L2 L3 L3 L1 COMPRESSOR AMPS L1 L2 L2 INDOOR FAN AMPS L1 L2 L2 TEMPERATURES OUTDOOR AIR TEMPERATURE DB WB RETURN AIR TEMPERATURE DB WB COOLING SUPPLY AIR DB WB GAS HEAT SUPPLY AIR DB PRESSURES GAS INLE...

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