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APPENDIX II. PHYSICAL DATA

Table 6 – PHYSICAL DATA (cont.)

(COOLING)

15 -- 25 TONS

48HC*17

48HC*20

48HC*24

48HC*28

HORIZONTAL

Sta

tic

Motor Qty / Drive type

1 / Belt

Max BHP

2.2

3.3

4.9

RPM range

514---680

622---822

690---863

647---791

Motor frame size

184T

Fan Qty / Type

2 / Centrifugal

Fan Diameter (in)

18 x 15/15 X 11

Sta

tic

Motor Qty / Drive type

1 / Belt

Max BHP

3.3

4.9

6.5

RPM range

614---780

713---879

835---1021

755---923

Motor frame size

184T

Fan Qty / Type

2 / Centrifugal

Fan Diameter (in)

18 x 15/15 X 11

tat

Motor Qty / Drive type

1 / Belt

Max BHP

4.9

6.5

8.7

RPM range

746---912

882---1078

941---1176

827---1010

Motor frame size

184T

213T

Fan Qty / Type

2 / Centrifugal

Fan Diameter (in)

18 x 15/15 X 11

Cond. Coil (Circuit A)

Coil type

RTPF

Coil Length (in)

Coil Height (in)

Rows / FPI (fins per inch)

2 /17

Total face area (ft2)

21.4

22.0

29.6

34.3

Cond. Coil (Circuit B)

Coil type

RTPF

Coil Length (in)

Coil Height (in)

Rows / FPI (fins per inch)

2 /17

Total face area (ft2)

21.4

19.5

29.6

34.3

Cond. fan / motor

Qty / Motor drive type

3 / direct

4 / direct

4/ direct

6 / direct

Motor HP / RPM

1/4 / 1100

Fan diameter (in)

Filters

RA Filter # / size (in)

6 / 20 x 25 x 2

9 / 16 x 25 x 2

OA inlet screen # / size (in)

4 / 16 x 25 x 1

48H

Содержание 48HC D17 Series

Страница 1: ...equipment Untrained personnel can perform the basic maintenance functions of replacing filters Trained service personnel should perform all other operations When working on air conditioning equipment...

Страница 2: ...y water from a pressure washer garden hose or compressed air should never be used to clean a coil The force of the water or air jet will bend the fin edges and increase airside pressure drop CAUTION O...

Страница 3: ...S Compressor mounting bolts S Condenser fan blade positioning S Control box cleanliness and wiring condition S Wire terminal tightness S Refrigerant charge level S Evaporator coil cleaning S Evaporat...

Страница 4: ...he unit disconnect switch DO NOT reach into the fan section with power still applied to unit WARNING Supply Fan Assembly The supply fan system consists of two forward curved centrifugal blower wheels...

Страница 5: ...e 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 mo...

Страница 6: ...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 Du...

Страница 7: ...driven motor 1 Turn off all electrical power to the unit Use approved lockout tagout procedures on all electrical power sources 2 Remove cover on motor connection box 3 Disconnect all electrical leads...

Страница 8: ...stem typically the motor pulley in these units Do not install a replacement motor pulley with a smaller pitch diameter than provided on the original factory pulley Change fan wheel speed by changing t...

Страница 9: ...with TotalineR environmentally sound coil cleaner is essential to extend the life of coils This cleaner is available from Carrier Replacement Components Division as part number P902 0301 for a one ga...

Страница 10: ...round tube coils be cleaned as described below Coil cleaning should be part of the unit s regularly scheduled maintenance procedures ensuring a long life for the coil Failure to clean the coils can re...

Страница 11: ...ng devices disconnect the supply fan contactor IFC coil then start the compressor and observe the frosting pattern on the face of the evaporator coil A frost pattern should develop uniformly across th...

Страница 12: ...o 80 relative humidity RH Desired sensible heat ratio SHR for equipment in this scenario is typically from 0 4 to 0 7 The Humidi MiZer unit will initiate Dehumidification mode when the space temperatu...

Страница 13: ...w design with two separate circuits 3 Way Solenoid Valve Hot Gas Bypass Solenoid Valve Relay Reheat Board RHB Evaporator Freeze Protection Thermostat Low Outdoor Temperature Lockout Switch Secondary L...

Страница 14: ...VALVE CLOSED VALVE OPEN VALVE 3 WAY VALVE C07122A Fig 16 Normal Cooling Mode Humidi MiZer System CONDENSER COIL HUMIDI MIZER COIL EVAPORATOR COIL COMPRESSOR OUTDOOR AIR INDOOR AIR RH2 x VALVE RH1 x VA...

Страница 15: ...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 C07124A Fig 18 Hot Gas Reheat Mode Reheat 2 Humidi MiZer...

Страница 16: ...FPT Freeze Protection Thermostat IFM Indoor Supply Fan motor LSV Liquid Solenoid Valve LTLO Low Temperature Lockout REHEAT Connection Strip REHEAT on CTB Fig 20 Inputs Modes Outputs Summary Y1 Y2 W1 G...

Страница 17: ...DV Valve Operation No 24V signal to input terminals Check using Cool Reheat1 Valve Test Service Test HMZR CRC using ComfortLink Scrolling Marquee Check CRC Relay Operation Check Wiring Check transform...

Страница 18: ...b which increases the pressure on the topside of the diaphragm pushing the carrier away from the seat opening the valve and increasing the flow of refrigerant The increased refrigerant flow causes inc...

Страница 19: ...restore power to unit 16 Complete charging procedure 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...

Страница 20: ...stem in the discharge line when breaking refrigerant system vacuum while the compressor is OFF Only add refrigerant liquid into the suction line while the compressor is operating If adding refrigerant...

Страница 21: ...be If suction temperature is high add refrigerant If suction temperature is low carefully recover some of the charge Recheck the suction pressure as charge is adjusted Select the appropriate unit char...

Страница 22: ...F 35 0C 85F 29 4C 75F 23 9C 65F 18 3C 55F 12 8C 45F 7 2C C12227 Fig 25 Cooling Charging Chart 15 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...

Страница 23: ...35 0C 85F 29 4C 75F 23 9C 65F 18 3C 55F 12 8C 45F 7 2C C12229 Fig 27 Cooling Charging Chart 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...

Страница 24: ...F 35 0C 85F 29 4C 75F 23 9C 65F 18 3C 55F 12 8C 45F 7 2C C12231 Fig 29 Cooling Charging Chart 20 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...

Страница 25: ...F 35 0C 85F 29 4C 75F 23 9C 65F 18 3C 55F 12 8C 45F 7 2C C12233 Fig 31 Cooling Charging Chart 25 Ton Circuit A F 35 40 45 50 55 60 65 70 75 80 85 90 C 1 6 4 4 7 2 10 12 8 15 6 18 3 21 1 23 9 26 7 29 4...

Страница 26: ...I Standard 700 Replacing the Compressor The compressor using 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 ins...

Страница 27: ...eplace the Filter Drier 1 Using Puron R410 gauge set recover all refrigerant from system 2 Use tubing cutter to remove filter drier from line NOTE Do Not use a torch to remove old filter drier The hea...

Страница 28: ...Replace air 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...

Страница 29: ...PANEL C08128 Fig 34 Convenience Outlet Location Unit Powered Type A unit mounted transformer is factory installed to stepdown the main power supply voltage to the unit to 115VAC at the duplex recepta...

Страница 30: ...includes the hinged cover a backing plate and gasket ELECTRICAL OPERATION HAZARD Failure to follow this warning could result in personal injury or death Before performing service or maintenance opera...

Страница 31: ...sure between the two tubes pulls the sampled air through the sensing chamber When a sufficient amount of smoke is detected in the sensing chamber the sensor signals an alarm state and the controller a...

Страница 32: ...he sampling tube be connected See installation steps FIOP Smoke Detector Wiring and Response All units The FIOP smoke detector is configured to automatically shut down all unit operations when a smoke...

Страница 33: ...R Operating Position Shown SCREWS 2 SAMPLE TUBE CONTROLLER MODULE C12050 Fig 41 Return Air Sampling Tube Location in Unit with Economizer B D F E A C 48TM502525 D C12559 Fig 42 Typical Smoke Detector...

Страница 34: ...roller s ability to initiate a dirty sensor test and indicate its results OPERATIONAL TEST NOTICE Failure to follow this NOTICE can result in an unnecessary evacuation of the facility Pressing the con...

Страница 35: ...2 Verify that the test reset station s Alarm LED turns on 3 Reset the sensor by turning the key switch to the RESET TEST position for two seconds 4 Verify that the test reset station s Alarm LED turn...

Страница 36: ...f Alarm State The smoke detector enters the alarm state when the amount of smoke particulate in the sensor s sensing chamber exceeds the alarm threshold value See Table 5 Upon entering the alarm state...

Страница 37: ...ed 2 Check the sensor s cover If it is loose or missing se cure the cover to the sensor housing 3 Replace sensor assembly Sensor s Power LED is Off 1 Check the controller s Power LED If it is off de t...

Страница 38: ...set requires a manual reset at the overload switch This device designated IFCB is located on the side of the supply fan housing behind the fan access panel The Must Hold and Must Trip values are liste...

Страница 39: ...gatort and Scrolling Marquee are not suitable for use with the latest PremierLink controller Version 2 x The PremierLink control is factory mounted in the 48HC unit s main control box to the left of t...

Страница 40: ...rs are only field installable The RTU OPEN controller may also require connection to a building network system or building zoning system All field control wiring that connects to the RTU OPEN must be...

Страница 41: ...IN Board Power 24 VAC Input_8 Enthalpy AO 1 ECON Gnd OAT Gnd SAT Configurable Input_8 24 VAC Configurable Input_5 24 VAC Configurable Input_3 24 VAC Input_9 Humidistat 24 VAC BACnet Modbus or N2 LON...

Страница 42: ...nifold pressure is factory adjusted for NG fuel use Adjust as required to obtain best flame characteristic See Table 8 Table 8 Natural Gas Manifold Pressure Ranges UNIT MODEL UNIT SIZE HIGH FIRE LOW F...

Страница 43: ...er section See Fig 53 2 Remove the flue cover to inspect the heat exchanger 3 Clean all surfaces as required using a wire brush Combustion Air Blower Clean periodically to assure proper airflow and he...

Страница 44: ...below the indoor fan panel At the beginning of each heating season inspect for deterioration or blockage due to corrosion or other causes Observe the main burner flames and adjust if necessary Flames...

Страница 45: ...6 9 To reinstall reverse the procedure outlined above Cleaning and Adjustment 1 Remove burner rack from unit as described in Re moval and Replacement of Gas Train section above 2 Inspect burners if di...

Страница 46: ...connection gas valve gas spuds and manifold pipe plug All leaks must be repaired before firing unit Check Unit Operation and Make Necessary Adjustments NOTE Gas supply pressure at gas valve inlet mus...

Страница 47: ...rror code descriptions IMPORTANT Refer to Troubleshooting Tables 16 and 17 for additional information Table 11 LED Error Code Description LED INDICATION ERROR CODE DESCRIPTION ON Normal Operation OFF...

Страница 48: ...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...

Страница 49: ...peed 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 sw...

Страница 50: ...272 000 9000 2743 513 140 800 513 198 400 513 256 000 10000 3048 524 132 000 524 186 000 524 240 000 11000 3353 524 123 200 524 173 600 524 224 000 12000 3658 534 114 400 534 161 200 534 208 000 13000...

Страница 51: ...replace filter as necessary Gas input to unit too low Check gas pressure at manifold Clock gas meter for input If too low increase manifold pressure or replace with correct orifices Unit undersized fo...

Страница 52: ...es Check igniter and flame sensor electrode spacing gaps etc Check flame sense and igniter wiring Check gas valve operation and gas supply 6 Flashes Induced Draft Motor Fault If heat off no gas heatin...

Страница 53: ...er actuators ECONOMI ER IV CONTROLLER OUTSIDE AIR TEMPERATURE SENSOR LOW AMBIENT SENSOR ACTUATOR WIRING HARNESS C06021 Fig 63 EconoMi er IV Component Locations ECONOMI ER2 PLUG BAROMETRIC RELIEF DAMPE...

Страница 54: ...nimum position Closed On Off On Off Off Off Off Off Low Free Cooling LED On High On On On Off Modulating between min position and full open Modulating between closed and full open On Off Off Off Off O...

Страница 55: ...stor located at the inlet of the indoor fan See Fig 68 This sensor is factory installed The operating range of temperature measurement is 0 to 158_F 18_ to 70_C See Table 68 for sensor temperature res...

Страница 56: ...T mA D C B A C06035 Fig 70 Outside Air Temperature Changeover Setpoints 0 5 10 15 20 25 30 0 13 0 20 0 22 0 25 0 30 0 35 0 40 0 45 0 50 STATIC PRESSURE in wg FLOW IN CUBIC FEET PER MINUTE cfm C06031 F...

Страница 57: ...thalpy to the return air enthalpy to determine EconoMi er IV use The controller selects the lower enthalpy air return or outdoor for cooling For example when the outdoor air has a lower enthalpy than...

Страница 58: ...ired by local codes to enter the building Make minimum position adjustments with at least 10_F temperature difference between the outdoor and return air temperatures To determine the minimum position...

Страница 59: ...15 cfm per person Use Fig 75 to determine the maximum setting of the CO2 sensor For example an 1100 ppm setpoint relates to a 15 cfm per person design Use the 1100 ppm curve on Fig 75 to find the poin...

Страница 60: ...eparation procedure has been performed 2 Set the enthalpy potentiometer to A fully CCW The Free Cool LED should be lit 3 Set the enthalpy potentiometer to D fully CW The Free Cool LED should turn off...

Страница 61: ...er IV to operation No troubleshooting or testing is done by performing the following procedure 1 Disconnect power at TR and TR1 2 Set enthalpy potentiometer to previous setting 3 Set DCV maximum posit...

Страница 62: ...rts or disconnected wires etc b Inspect for oil at all refrigerant tubing connec tions and on unit base Detecting oil generally indicates a refrigerant leak Leak test all refri gerant tubing connectio...

Страница 63: ...ompressor Rotation On 3 phase units with scroll compressors it is important to be certain compressor is rotating in the proper direction To determine whether or not compressor is rotating in the prope...

Страница 64: ...To restore the original default value reset the power to the unit To shut off unit set system selector switch at OFF position Resetting heating selector lever below room temperature will temporarily...

Страница 65: ...VALUES Table 20 Torque Values Supply fan motor mounting 120 in lbs 13 6 Nm 12 in lbs 1 4Nm Supply fan motor adjustment plate 120 in lbs 13 6 Nm 12 in lbs 1 4Nm Motor pulley setscrew 72 in lbs 8 1 Nm...

Страница 66: ...RA SA Smoke Detector W7212 EconoMi er IV Non Fault Detection E CO2 Sensor and Diagnostic F RA Smoke Detector CO2 1 PremierLink Controller G SA Smoke Detector CO2 2 RTU Open Multi Protocol Controller H...

Страница 67: ...terial Cu Al Cu Al Cu Al Cu Al Tube Diameter 3 8 in RTPF 3 8 in RTPF 3 8 in RTPF 3 8 in RTPF Rows FPI 1 17 1 17 1 17 1 17 Total face area ft2 22 22 26 26 Evap fan and motor VERTICAL Standard Static Mo...

Страница 68: ...e 1 Belt 1 Belt 1 Belt 1 Belt Max BHP 4 9 6 5 8 7 8 7 RPM range 746 912 882 1078 941 1176 827 1010 Motor frame size 56 184T 213T 213T Fan Qty Type 2 Centrifugal 2 Centrifugal 2 Centrifugal 2 Centrifug...

Страница 69: ...ens closes 195 115 195 115 195 115 195 115 Temperature rise range F 30 60 30 60 30 60 30 60 of stages of burners total 2 10 2 10 2 10 2 10 HIGH Connection size 3 4 in NPT 3 4 in NPT 3 4 in NPT 3 4 in...

Страница 70: ...and Drive 826 1009 RPM Max BHP 4 9 Outside operating range Boldface Field supplied Drive TABLE 24 48HC D20 VERTICAL SUPPLY RETURN 17 5 TON CFM Available External Static Pressure in wg 0 2 0 4 0 6 0 8...

Страница 71: ...PM Max BHP 4 9 Medium Static Motor and Drive 835 1021 RPM Max BHP 6 5 High Static Motor and Drive 941 1176 RPM Max BHP 8 7 Outside operating range Boldface Field supplied Drive TABLE 26 48HC D28 VERTI...

Страница 72: ...3 3 High Static Motor and Drive 746 912 RPM Max BHP 4 9 Outside operating range Boldface Field supplied Drive TABLE 28 48HC D20 HORIZONTAL SUPPLY RETURN 17 5 TON CFM Available External Static Pressure...

Страница 73: ...Drive 835 1021 RPM Max BHP 6 5 High Static Motor and Drive 941 1176 RPM Max BHP 8 7 Outside operating range Boldface Field supplied Drive TABLE 30 48HC D28 HORIZONTAL SUPPLY RETURN 25 TON CFM Availabl...

Страница 74: ...1176 1153 1129 1106 1082 1059 1035 1012 988 965 941 NOTE Do not adjust pulley further than 5 turns open Factory settings TABLE 32 PULLEY ADJUSTMENT HORIZONTAL MODEL SIZE MOTOR DRIVE COMBO Motor Pulle...

Страница 75: ...51 J 50HE500889 I 50HE502181 E 50HE502186 B 460 3 60 50HE500751 J 50HE500752 I 50HE502181 E 50HE502183 C 575 3 60 50HE500751 J 50HE500888 I 50HE502181 E 50HE502184 C D28 208 230 3 60 50HE500751 J 50HE...

Страница 76: ...76 APPENDIX IV WIRING DIAGRAMS C12615 Fig 76 48HC D17 D28 Control Diagram 208 230 3060 460 575 3 60 48HC...

Страница 77: ...77 APPENDIX IV WIRING DIAGRAMS C12616 Fig 77 48HC D17 D28 Power Diagram 208 230 3 60 48HC...

Страница 78: ...78 APPENDIX IV WIRING DIAGRAMS C12617 Fig 78 48HC D17 D28 Power Diagram 460 3 60 48HC...

Страница 79: ...79 APPENDIX IV WIRING DIAGRAMS C12618 Fig 79 48HC D17 D28 Power Diagram 575 3 60 48HC...

Страница 80: ...80 APPENDIX IV WIRING DIAGRAMS C14061 Fig 80 48HC D17 D28 Control Diagram with Humidi MiZer 48HC...

Страница 81: ...81 APPENDIX IV WIRING DIAGRAMS C12620 Fig 81 48HC D17 D28 Power Diagram 208 230 3 60 with Humidi MiZer 48HC...

Страница 82: ...82 APPENDIX IV WIRING DIAGRAMS C12621 Fig 82 48HC D17 D28 Power Diagram 460 3 60 with Humidi MiZer 48HC...

Страница 83: ...83 APPENDIX IV WIRING DIAGRAMS C12622 Fig 83 48HC D17 D28 Power Diagram 575 3 60 with Humidi MiZer 48HC...

Страница 84: ...84 APPENDIX IV WIRING DIAGRAMS 50HE500891 F 50HE500751 J C12263 Fig 84 PremierLinkt System Control Wiring Diagram 48HC...

Страница 85: ...85 APPENDIX IV WIRING DIAGRAMS C13766 Fig 85 PremierLinkt System Control Wiring Diagram with Humidi MiZer 48HC...

Страница 86: ...86 APPENDIX IV WIRING DIAGRAMS C13767 Fig 86 RTU OPEN Wiring Diagram 48HC...

Страница 87: ...87 APPENDIX IV WIRING DIAGRAMS C13768 Fig 87 RTU OPEN Wiring Diagram with Humidi MiZer 48HC...

Страница 88: ...SENSOR LOCATION C12259 Fig 89 MotorMaster Sensor Locations D28 Copyright 2014 Carrier Corp S 7310 W Morris St S Indianapolis IN 46231 Edition Date 04 14 Manufacturer reserves the right to change at an...

Страница 89: ...RE 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 MAINT...

Страница 90: ...p S 7310 W Morris St S Indianapolis IN 46231 Edition Date 04 15 Manufacturer reserves the right to change at any time specifications and designs without notice and without obligations Catalog No 48HC...

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