Page 2 - must; UNIT ARRANGEMENT AND ACCESS; General
2 FIRE, EXPLOSION HAZARD Failure to follow this warning could result in personal injury, death and/or property damage.Refer to the User’s Information Manual provided with this unit for more details.Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any othe...
Page 3 - Routine Maintenance
3 BLOWERACCESSPANEL FLUE OPENING CONTROL BOX COMPRESSOR C08450 Fig. 2 -- Typical Access Panel Location (Front) Routine Maintenance These items should be part of a routine maintenance program, to be checked every month or two, until a specific schedule for each can be identified for this installation...
Page 4 - Manual Outside Air Hood Screen; WARNING; Belt
4 22 3/8 (569 mm) HOOD DIVIDER OUTSIDEAIR CLEANABLEALUMINUMFILTER BAROMETRICRELIEF FILTERCAP FILTER C08634 Fig. 3 -- Filter Installation To remove the filter, open the spring clips. Re--install the filter by placing the frame in its track, then closing the spring clips. Manual Outside Air Hood Scree...
Page 6 - COOLING; Condenser Coil
6 Changing fan wheel speed by changing pulleys: The horsepower rating of the belt is primarily dictated by the pitch diameter of the smaller pulley in the drive system (typically the motor pulley in these units). Do not install a replacement motor pulley with a smaller pitch diameter than provided o...
Page 7 - Totaline Environmentally Sound Coil Cleaner Application; CAUTION; Totaline Environmentally Sound Coil Cleaner application
7 Routine Cleaning of NOVATION Condenser Coil Surfaces To clean the NOVATION condenser coil, chemicals are NOT to be used; only water is approved as the cleaning solution. Only clean potable water is authorized for cleaning NOVATION condensers. Carefully remove any foreign objects or debris attached...
Page 8 - Evaporator Coil Metering Devices; Refrigerant System Pressure Access Ports; PURON; Refrigerant Charge; No Charge
8 5. Finned surfaces should remain wet with cleaning solution for 10 minutes. 6. Ensure surfaces are not allowed to dry before rinsing. Reapply cleaner as needed to ensure 10--minute satur- ation is achieved. 7. Thoroghly rinse all surfaces with low velocity clean water using downward rinsing motion...
Page 9 - Suction Pressure
9 1/2-20 UNF RH 30 0.596 .47 5/8” HEX SEAT CORE WASHER DEPRESSOR PER ARI 720 +.01/-.035 FROM FACE OF BODY 7/16-20 UNF RH O-RING 45 torqued into the seat. Appropriate handling is required to not scratch or dent the surface. 1/2" HEX This surface provides a metal to metal seal when o o (Part No. E...
Page 10 - COOLING CHARGING CHARTS
10 COOLING CHARGING CHARTS C08669 Fig. 10 -- Cooling Charging Charts (D08) 48TC
Page 14 - Table 1 – Cooling Service Analysis
14 Table 1 – Cooling Service Analysis PROBLEM CAUSE REMEDY Compressor and Condenser Fan Will Not Start. Power failure. Call power company. Fuse blown or circuit breaker tripped. Replace fuse or reset circuit breaker. Defective thermostat, contactor, transformer, or control relay. Replace component. ...
Page 15 - Compressors; Filter Drier; Troubleshooting Cooling System
15 Compressors Lubrication Compressors are charged with the correct amount of oil at the factory. UNIT DAMAGE HAZARD Failure to follow this caution may result in damage to components.The compressor is in a Puron R refrigerant system and uses a polyolester (POE) oil. This oil is extremely hygroscopic...
Page 16 - CONVENIENCE OUTLETS; ELECTRICAL OPERATION HAZARD; Duty Cycle
16 CONVENIENCE OUTLETS ELECTRICAL OPERATION HAZARD Failure to follow this warning could result in personal injury or death.Units with convenience outlet circuits may use multiple disconnects. Check convenience outlet for power status before opening unit for service. Locate its disconnect switch, if ...
Page 17 - SMOKE DETECTORS; System
17 Maintenance Periodically test the GFCI receptacle by pressing the TEST button on the face of the receptacle. This should cause the 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 re...
Page 18 - Smoke Detector Locations; Location
18 The sensor uses a process called differential sensing to prevent gradual environmental changes from triggering false alarms. A rapid change in environmental conditions, such as smoke from a fire, causes the sensor to signal an alarm state but dust and debris accumulated over time does not. Duct s...
Page 19 - Completing Installation of Return Air Smoke; FIOP Smoke Detector Wiring and Response
19 Return AirSampling Tube C08129 Fig. 22 -- Return Air Sampling Tube Location Completing Installation of Return Air Smoke Sensor: SCREWS EXHAUSTTUBE FLEXIBLEEXTENSIONTUBE SAMPLING C08126 Fig. 23 -- Return Air Detector Shipping Position 1. Unscrew the two screws holding the Return Air Sensor detecto...
Page 20 - Sensor and Controller Tests; Sensor Alarm Test; Sensor Alarm Test Procedure
20 A E F C D B C08246 Fig. 25 -- Typical Smoke Detector System Wiring Highlight C: 24--v power signal via ORN lead is removed at Smoke Detector input on LCTB; all unit operations cease immediately. PremierLink t and RTU--MP Controls: Unit operating functions (fan, cooling and heating) are terminated...
Page 22 - OPERATIONAL TEST HAZARD; Detector Cleaning; Cleaning the Smoke Detector
22 SD--TRK4 Remote Alarm Test Procedure 1. Turn the key switch to the RESET/TEST position for seven seconds. 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 A...
Page 23 - INDICATORS; Troubleshooting
23 INDICATORS Normal State The smoke detector operates in the normal state in the absence of any trouble conditions and when its sensing chamber is free of smoke. In the normal state, the Power LED on both the sensor and the controller are on and all other LEDs are off. Alarm State The smoke detecto...
Page 24 - PROTECTIVE DEVICES; Compressor Protection
24 Table 3 – Detector Indicators CONTROL OR INDICATOR DESCRIPTION Magnetic test/reset switch Resets the sensor when it is in the alarm or trouble state. Activates or tests the sensor when it is in the normal state. Alarm LED Indicates the sensor is in the alarm state. Trouble LED Indicates the senso...
Page 25 - Condenser Fan Motor Protection; GAS HEATING SYSTEM; Table 5 – Natural Gas Supply Line Pressure Ranges; Table 6 – Natural Gas Manifold Pressure Ranges; Table 7 – Liquid Propane Supply Line Pressure Ranges; Table 8 – Liquid Propane Manifold Pressure Ranges
25 Condenser Fan Motor Protection The condenser fan motor is internally protected against overtemperature. Control Circuit, 24--V The control circuit is protected against overcurrent conditions by a circuit breaker mounted on control transformer TRAN. Reset is manual. GAS HEATING SYSTEM General The ...
Page 26 - Flue Gas Passageways
26 48TCDD08 only C08238 All 48TC*D except DD08 C08239 Fig. 31 -- LP Low Pressure Switch (Installed) PNK W2 TSTAT GRA BRN IGC J2-12 IGC J2-11 BRN C NO MGV C LP LPS C08285 Fig. 32 -- LP Supply Line Low Pressure Switch Wiring This switch also prevents operation when the propane tank level is low which ...
Page 27 - Burners and Igniters; EQUIPMENT DAMAGE HAZARD; Main Burners
27 HEATER TUBE ASSEMBLY SEAL STRIPS, SPONGE RUBBER REGULATOR GASKET REGULATOR RETAINER WIND CAP ASSEMBLY (SHOWN INVERTED, AS SHIPPED) BURNER ASSEMBLY INDUCER FAN-MOTOR ASSEMBLY SUPPORT INSULATION ASSEMBLY C08227 Fig. 33 -- Heat Exchanger Assembly Burners and Igniters EQUIPMENT DAMAGE HAZARD Failure ...
Page 28 - Cleaning and Adjustment; IMPORTANT
28 MANIFOLD PRESSURE TAP GAS VALVE BURNERS C09154 Fig. 35 -- Burner Tray Details 6. Remove igniter wires and sensor wires at the Integ- rated Gas Unit Controller (IGC). (See Fig. 36.) 7. Remove the 2 screws that attach the burner rack to the vestibule plate. (See Fig. 33.) 8. Slide the burner tray o...
Page 29 - Burner Ignition; Table 9 – LED Error Code Description*
29 125,000/90,000 BTUH INPUT 180,000/120,000 BTUH INPUT 240,000/180,000 BTUH INPUT 250,000/200,000 BTUH INPUT C08447 Fig. 37 -- Spark Adjustment (08--14) Burner Ignition Unit is equipped with a direct spark ignition 100% lockout system. Integrated Gas Unit Controller (IGC) is located in the control ...
Page 30 - Orifice Replacement
30 C08240 C08241 48TCDD08 only All 48TC*D except DD08 Fig. 38 -- Gas Valve Orifice Replacement This unit uses orifice type LH32RFnnn (where nnn indicates orifice reference size). When replacing unit orifices, order the necessary parts via Carrier RCD. See Table 11 for available orifice sizes. See Ta...
Page 31 - Table 10 – IGC Connections
31 Red LED-Status C08452 Fig. 39 -- Integrated Gas Control (IGC) Board Table 10 – 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...
Page 32 - Table 11 – Orifice Sizes
32 Table 11 – 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 LH...
Page 33 - Minimum Heating Entering Air Temperature; Troubleshooting Heating System; Table 13 – Heating Service Analysis; PROBLEM
33 Minimum Heating Entering Air Temperature When operating on first 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 excha...
Page 34 - Table 14 – IGC Board LED Alarm Codes
34 Table 14 – IGC Board LED Alarm Codes LED FLASH CODE DESCRIPTION ACTION TAKEN BY CONTROL RESET METHOD PROBABLE CAUSE On Normal Operation — — — Off Hardware Failure No gas heating. — Loss of power to the IGC. Check 5 amp fuse on IGC, power to unit, 24V circuit breaker, transformer, and wiring to th...
Page 35 - CONDENSER COIL SERVICE; Repairing NOVATION Condenser Tube Leaks
35 CONDENSER COIL SERVICE Condenser Coil The condenser coil is new NOVATION Heat Exchanger Technology. This is an all--aluminum construction with louvered fins over single--depth crosstubes. The crosstubes have multiple small passages through which the refrigerant passes from header to header on eac...
Page 36 - NOTE; Temperature (SAT) Sensor on Small Rooftop Units
36 PREMIERLINK t CONTROL The PremierLink controller (see Fig. 41) is compatible with Carrier Comfort Network r (CCN) devices. This control is designed to allow users the access and ability to change factory--defined settings, thus expanding the function of the standard unit control board. CCN servic...
Page 38 - TEMP; SEN
38 Table 15 – Thermistor Resistance vs Temperature Values for Space Temperature Sensor, Supply Air Temperature Sensor, and Outdoor Air Temperature Sensor TEMP (C) TEMP (F) RESISTANCE (Ohms) --- 40 --- 40 335,651 --- 35 --- 31 242,195 --- 30 --- 22 176,683 --- 25 --- 13 130,243 --- 20 --- 4 96,974 --...
Page 39 - Table 16 – PremierLink Sensor Usage; Table 17 – Space Sensor Mode
39 Table 16 – PremierLink Sensor Usage APPLICATION OUTDOOR AIR TEMPERATURE SENSOR RETURN AIR TEMPERATURE SENSOR OUTDOOR AIR ENTHALPY SENSOR RETURN AIR ENTHALPY SENSOR Differential Dry Bulb Temperature with PremierLink (PremierLink requires 4 --- 20 mA Actuator) Included --- CRTEMPSN001A00 Required -...
Page 40 - Table 18 – Thermostat Mode; TB1 TERMINAL; RAT SEN
40 Table 18 – Thermostat Mode TB1 TERMINAL FIELD CONNECTION INPUT SIGNAL 1 RAT SEN Analog (10k thermistor) 2 G Discrete, 24VAC 3 RAT SEN Analog (10k thermistor) 4 Y1 Discrete, 24VAC 5 6 Y2 Discrete, 24VAC 7 LOOP --- PWR Analog, 24VDC 8 W1 Discrete, 24VAC 9 IAQ --- SEN Analog, 4 --- 20mA 10 W2 Discre...
Page 41 - Wiring
41 Configure the unit for Thermostat Mode — Connect to the CCN bus using a CCN service tool and navigate to PremierLink Configuration screen for Operating Mode. Default setting is Sensor Mode (value 1). Change the value to 0 to reconfigure the controller for Thermostat Mode. When the PremierLink is ...
Page 42 - Connections; COVER REMOVED; Sensor Connections
42 The CO 2 sensors are all factory set for a range of 0 to 2000 ppm and a linear mA output of 4 to 20. Refer to the instructions supplied with the CO 2 sensor for electrical requirements and terminal locations. See Fig. 51 for typical CO 2 sensor wiring schematic. C07134 Fig. 51 -- Indoor/Outdoor A...
Page 43 - Connection
43 Refer to the Rooftop PremierLink Installation, Start-Up, and Configuration Instructions (Form 33CS--58SI), PremierLink Installation, Start--up, and Configuration Instructions, for detailed configuration information. Smoke Detector/Fire Shutdown (FSD) — This function is available only when Premier...
Page 47 - Table 21 – RTU--MP Controller Inputs and Outputs
47 Table 21 – RTU--MP Controller Inputs and Outputs POINT NAME BACnet OBJECT NAME TYPE OF I/O CONNECTION PIN NUMBERS INPUTS Space Temperature Sensor sptsens AI (10K Thermistor) J20 --- 1, 2 Supply Air Temperature sat AI (10K Thermistor) J2 --- 1, 2 Local Outside Air Temperature Sensor oatsens AI (10...
Page 49 - Sensor
49 Locate the enthalpy control in the economizer hood. Locate two GRA leads in the factory harness and connect these leads to enthalpy control sensors 2 and 3. (See Fig. 49.) Connect the enthalpy control power input terminals to economizer actuator power leads RED (connect to TR) and BLK (connect to...
Page 50 - Connecting Discrete Inputs; Integration Guide
50 To connect the sensor to the control, identify the positive (4 to 20 mA) and ground (SIG COM) terminals on the OAQ sensor. See Fig. 51. Connect the 4 to 20 mA terminal to RTU--MP J4--5. Connect the SIG COM terminal to RTU--MP J4--6. (See Fig. 66.) SEN COM J4-5 J4-6 OAQ Sensor/RH Sensor 24 VAC C08...
Page 51 - SW3 Protocol Selection; Baud Rate Selections; Modbus; BACview; Communication LEDs
51 SW3 Protocol Selection PROTOCOL DS8 DS7 DS6 DS5 DS4 DS3 DS2 DS1 BACnet MS/TP (Master) Unused OFF OFF OFF ON OFF Select Baud Select Baud Modbus (Slave) Unused OFF OFF ON ON OFF Select Baud Select Baud N2 (Slave) Unused OFF OFF OFF ON ON OFF OFF LonWorks Unused ON ON OFF ON OFF OFF OFF NOTE:DS = Di...
Page 52 - The LEDs on the RTU--MP show the status of certain functions; Tx
52 C07170 Fig. 69 -- BACview 6 Handheld Connections Table 22 – LEDs The LEDs on the RTU--MP show the status of certain functions If this LED is on... Status is... Power The RTU MP has power Rx The RTU MP is receiving data from the network segment Tx The RTU MP is transmitting data over the network s...
Page 53 - Table 23 – Troubleshooting Alarms
53 Table 23 – Troubleshooting Alarms POINT NAME BACnet OBJECT NAME ACTION TAKEN BY CONTROL RESET METHOD PROBABLE CAUSE Safety Chain Alarm safety_chain Alarm Generated Immediate Shutdown Automatic Over load Indoor Fan or Electric Heater overheat. Fire Shutdown Alarm fire_alarm Alarm Generated Immedia...
Page 54 - Alarms; Party Integration Guide
54 Alarms Alarms can be checked through the network and/or the local access. All the alarms are listed in Table 23 with name, object name, action taken by control, reset method, and probable cause. There are help screens for each alarm on the local access display and listed in RTU--MP Controls, Star...
Page 59 - Table 27 – EconoMi$er IV Input/Output Logic; INPUTS
59 Table 27 – EconoMi$er IV Input/Output Logic INPUTS OUTPUTS Demand Control Ventilation (DCV) Enthalpy* Y1 Y2 Compressor N Terminal† Outdoor Return Stage 1 Stage 2 Occupied Unoccupied Damper Below set (DCV LED Off) High (Free Cooling LED Off) Low On On On On Minimum position Closed On Off On Off Of...
Page 60 - Setpoints
60 Supply Air Temperature (SAT) Sensor The supply air temperature sensor is a 3 K thermistor located at the inlet of the indoor fan. (See Fig. 76.) This sensor is factory installed. The operating range of temperature measurement is 0 ° to 158 _ F (--18 _ to 70 _ C). See Table 15 for sensor temperatu...
Page 61 - Differential Dry Bulb Control; Mounting Location
61 Differential Dry Bulb Control For differential dry bulb control the standard outdoor dry bulb sensor is used in conjunction with an additional accessory dry bulb sensor (part number CRTEMPSN002A00). The accessory sensor must be mounted in the return airstream. (See Fig. 80.) Wiring is provided in...
Page 62 - Differential Enthalpy Control; Sensor Maximum Range Settings
62 TR1 24 Vac COM TR 24 Va c HOT 1 2 3 4 5 EF EF1 + _ P1 T1 P T N EXH 2V 10V EXH Set Set 2V 10V 2V 10V DCV DCV Free Cool B C A D SO+ SR+ SR SO AQ1 AQ DCV Min Pos Open Max N1 C06038 Fig. 82 -- EconoMi$er IV Control Differential Enthalpy Control For differential enthalpy control, the EconoMi$er IV con...
Page 63 - Damper Movement
63 Adjust the minimum position potentiometer to allow the minimum amount of outdoor air, as required 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 ...
Page 66 - WIRING DIAGRAMS
66 5. Turn the DCV setpoint potentiometer CW until the DCV LED turns off. The DCV LED should turn off when the potentiometer is approximately 9--v. The actuator should drive fully closed. 6. Turn the DCV and Exhaust potentiometers CCW until the Exhaust LED turns on. The exhaust contacts will close 3...
Page 69 - PERSONAL INJURY HAZARD; PERSONAL INJURY AND ENVIRONMENTAL; Unit Preparation
69 PRE--START--UP PERSONAL INJURY HAZARD Failure to follow this warning could result in personal injury or death. 1. Follow recognized safety practices and wear protective goggles when checking or servicing refrigerant system. 2. Do not operate compressor or provide any electric power to unit unless...
Page 70 - UNIT OPERATION AND SAFETY HAZARD
70 UNIT OPERATION AND SAFETY HAZARD Failure to follow this warning could result in personal injury or death.Disconnect gas piping from unit when leak testing at pressure greater than 1/2 psig. Pressures greater than 1/2 psig will cause gas valve damage resulting in hazardous condition. If gas valve ...
Page 71 - CONTROLS; Initial Operation and Test; Memory Reset; Field Service Test
71 NOTE : The default value for the evaporator--fan motor on/off delay is 45 seconds. The Integrated Gas UnitController (IGC) modifies this value when abnormal limitswitch cycles occur. Based upon unit operating conditions,the on delay can be reduced to 0 seconds and the off delaycan be extended to ...
Page 72 - Configuration
72 Field Service Test mode has the following changes from normal operation: S Outdoor air tempe rature limits for cooling circuits, economizer, and heating are ignored. S Normal compressor time guards and other staging delays are ignored. S The status of Alarms (except Fire and Safety chain) is igno...
Page 75 - OPERATING SEQUENCES; Heating, Units Without Economizer
75 OPERATING SEQUENCES Base Unit ControlsCooling, Units Without Economizer When thermostat calls for Stage 1 cooling, terminals G and Y1 are energized. The indoor--fan contactor (IFC), outdoor fan contactor (OFC) and Compressor 1 contactor (C1) are energized and indoor-fan motor, outdoor fan and Com...
Page 79 - Table 30 – Available Cooling Stages; NUMBER OF
79 Table 30 – Available Cooling Stages NUMBER OF STAGES 0 1 (ECONOMIZER*) 2 3 Compressor 1 Off Off On On Compressor 2 Off Off Off On * If conditions are suitable for economizer operation. Any time the compressors are running, the PremierLink controller will lockout the compressors if the SAT becomes...
Page 82 - Table 31 – Linkage Modes; ROOFTOP MODE
82 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...
Page 83 - DX Cooling OFF
83 The PremierLink t controller will generate a Linkage Communication Failure alarm if a failure occurs for 5 consecutive minutes once a Linkage has previously been established. It will then revert back to its own SPT, setpoints and occupancy schedule for control. For this reason, Carrier strongly r...
Page 85 - FASTENER TORQUE VALUES
85 Economizer The Economizer dampers are used to provide free cooling and Indoor Air Quality, if optional CO 2 sensor is installed, when the outside conditions are suitable.The following conditions must be true for economizer operation: S Indoor Fan has been on for at least 30 seconds. S Enthalpy is...
Page 86 - Table 33 – Torque Values
86 Table 33 – Torque Values Supply fan motor mounting 120 ¦ 12 in --- lbs 13.5 ¦ 1.4 Nm Supply fan motor adjustment plate 120 ¦ 12 in --- lbs 13.5 ¦ 1.4 Nm Motor pulley setscrew 72 ¦ 5 in --- lbs 8.1 ¦ 0.6 Nm Fan pulley setscrew 72 ¦ 5 in --- lbs 8.1 ¦ 0.6 Nm Blower wheel hub setscrew 72 ¦ 5 in --- ...
Page 87 - APPENDIX I. MODEL NUMBER SIGNIFICANCE; Model Number Nomenclature
87 APPENDIX I. MODEL NUMBER SIGNIFICANCE Model Number Nomenclature 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 4 8 T C D D 0 8 A 1 A 5 -- 0 A 0 A 0 ____ ____ ____ Unit Heat Type 48 = Cooling/Gas Heat RTU Brand / Packaging 0 = Standard Tier / Model 1 = LTL TC = Entry tier (with Puron R refrigerant) ...
Page 88 - APPENDIX II. PHYSICAL DATA; Physical Data
88 APPENDIX II. PHYSICAL DATA Physical Data (Cooling) 7.5 -- 12.5TONS 48TC*D08 48TC*D12 48TC*D14 Refrigeration System # Circuits / # Comp. / Type 2 / 2 / Scroll 2 / 2 / Scroll 2 / 2 / Scroll Puron R refrig. (R --- 410A) charge per circuit A/B (lbs --- oz) 4 --- 6 / 4 --- 6 6 --- 0 / 6 --- 0 7 --- 6/...
Page 89 - LO
89 APPENDIX II. PHYSICAL DATA (cont.) Physical Data (Heating) 7.5 -- 12.5TONS 48TC**08 48TC**12 48TC**14 Gas Connection # of Gas Valves 1 1 1 Nat. gas supply line press (in. w.g.)/(PSIG) 4 --- 13 / 0.18 --- 0.47 4 --- 13 / 0.18 --- 0.47 4 --- 13 / 0.18 --- 0.47 LP supply line press (in. w.g.)/(PSIG)...
Page 90 - APPENDIX III. FAN PERFORMANCE; PHASE
90 APPENDIX III. FAN PERFORMANCE 48TC**08 3 PHASE 7.5 TON HORIZONTAL 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 505 0.52 586 0.73 657 0.97 722 1.22 782 1.50 2438 533 0.62 610 0.85...
Page 93 - Pulley Adjustment
93 APPENDIX III. FAN PERFORMANCE (cont.) Pulley Adjustment UNIT MOTOR/DRIVE COMBO MOTOR PULLEY TURNS OPEN 0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 08 3p ha se Standard Static 747 721 695 670 644 618 592 566 541 515 489 Medium Static 949 927 906 884 863 841 819 798 776 755 733 High Static 1102 108...
Page 94 - ELECTRICAL INFORMATION
94 ELECTRICAL INFORMATION 48TC*D08 2 --- Stage Cooling 7.5 Tons V --- Ph --- Hz VOLTAGE RANGE COMP (Cir 1) COMP (Cir 2) OFM (ea) IFM RLA LRA RLA LRA WATTS FLA TYPE Max WATTS Max AMP Draw EFF at Full Load FLA MIN MAX 208 --- 3 --- 60 187 253 13.6 83 13.6 83 325 1.5 STD 1448 5.5 80% 5.2 MED 2278 7.9 8...
Page 96 - APPENDIX IV. WIRING DIAGRAM LIST; Wiring Diagrams; SIZE
96 APPENDIX IV. WIRING DIAGRAM LIST Wiring Diagrams 48TC SIZE VOLTAGE CONTROL POWER D08 208/230 --- 3 --- 60 48TM501325 48TM501326 460 --- 3 --- 60 48TM501325 48TM501326 575 --- 3 --- 60 48TM501325 48TM501327 D12 208/230 --- 3 --- 60 48TM501325 48TM501326 460 --- 3 --- 60 48TM501325 48TM501326 575 -...
Page 97 - APPENDIX V. MOTORMASTER SENSOR LOCATIONS; temperature sensor location for this unit.
97 APPENDIX V. MOTORMASTER SENSOR LOCATIONS C09158 Fig. 86 -- 48TC*D08--D12 Outdoor Circuiting NOTE : The low ambient kit for the 12.5 ton unit utilizes a pressure transducer, and therefore there is no Motormaster temperature sensor location for this unit. Copyright 2009 Carrier Corp. S 7310 W. Morr...
Page 98 - UNIT START-UP CHECKLIST; ELECTRICAL
98 UNIT START-UP CHECKLIST I. PRELIMINARY INFORMATION: MODEL NO.:DATE: ______________ SERIAL NO: _____________________________________TECHNICIAN: ___________________________________BUILDING LOCATION:____________________________ II. PRE-START-UP (insert check mark in box as each item is completed): j...
