Carrier 50TCA04-A07- Manuals

Page 2 - UNIT ARRANGEMENT AND ACCESS; General; Routine Maintenance

2 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 appropriate, and open...

Page 3 - WARNING

3 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 fi...

Page 5 - COOLING; Condenser Coil

5 Motor When replacing the motor, also replace the external--tooth lock washer (star washer) under the motor mounting base; this is part of the motor grounding system. Ensure the teeth on the lock washer are in contact with the motor’s painted base. Tighten motor mounting bolts to 120 +/-- 12 in--lb...

Page 7 - Evaporator Coil; Cleaning the Evaporator Coil; Refrigerant System Pressure Access Ports; PURON; Refrigerant Charge; No Charge

7 6. Hold garden sprayer nozzle close to finned areas and apply cleaner 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 th...

Page 8 - To Use Cooling Charging Charts; SEAT

8 To Use Cooling Charging Charts Take the outdoor ambient temperature and read the suction pressure gauge. Refer to chart to determine what suction temperature should be. If suction temperature is high, add refrigerant. If suction temperature is low, carefully recover some of the charge. Recheck the...

Page 9 - COOLING CHARGING CHARTS

9 COOLING CHARGING CHARTS C08203 C08204 Fig. 12 -- Cooling Charging Charts 50TC

Page 11 - Compressor; CAUTION; Filter Drier

11 Compressor Lubrication The compressor is 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 hygroscopi...

Page 12 - Table 1 – Cooling Service Analysis

12 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 13 - CONVENIENCE OUTLETS; ELECTRICAL OPERATION HAZARD; SMOKE DETECTORS

13 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 15 - Smoke Detector Locations; Location; Completing Installation of Return Air Smoke; Screws

15 For installations using two sensors, the duct smoke detector does not differentiate which sensor signals an alarm or trouble condition. Smoke Detector Locations Supply Air — The Supply Air smoke detector sensor is located to the left of the unit’s indoor (supply) fan. See Fig. 18. Access is throu...

Page 16 - FIOP Smoke Detector Wiring and Response

16 6. For units with an economizer, the sampling tube is in- tegrated into the economizer housing but the connec- tion of the flexible tubing to the sampling tube is the same. C08127 Fig. 22 -- Return Air Sensor Operating Position FIOP Smoke Detector Wiring and Response All units: FIOP smoke detecto...

Page 17 - Controller Alarm Test; Dirty Controller Test; Dirty Sensor Test

17 Sensor and Controller TestsSensor 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. OPERATIONAL TEST HAZARD Failure to follow this caution may result in personnel and authority concern.This te...

Page 18 - Changing the Dirt Sensor Test; To Configure the Dirty Sensor Test Operation; Remote Station Test; Remote Test/Reset Station Dirty Sensor Test; OPERATIONAL TEST HAZARD; OPERATIONAL TEST HAZARD; DETECTOR CLEANING; Cleaning the Smoke Detector

18 Changing the Dirt Sensor Test By default, sensor dirty test results are indicated by: S The sensor’s Dirty LED flashing. S The controller’s Trouble LED flashing. S The controller’s supervision relay contacts toggle. The operation of a sensor’s dirty test can be changed so that the controller’s su...

Page 19 - Table 3 – Detector Indicators; INDICATORS; Normal State

19 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 20 - TROUBLESHOOTING

20 S If a wiring fault between a sensor and the controller, thecontroller’s Trouble LED turns on but not the sensor’s. Alarm Power Test/resetswitch Trouble C07298 Fig. 26 -- Controller Assembly NOTE : All troubles are latched by the duct smoke detector. The trouble condition must be cleared and then...

Page 21 - Condenser Fan Motor Protection; Relief Device; ELECTRIC HEATERS; NOTE

21 The High Static option supply fan motor is equipped with a pilot--circuit Thermix combination overtemperature/overcurrent protection device. This device resets automatically. Do not bypass this switch to correct trouble. Determine the cause and correct it. Condenser Fan Motor Protection The conde...

Page 22 - Single Point Boxes and Supplementary Fuses —; Safety Devices —; Completing Heater Installation; Field Power Connections —; Connections

22 Single Point Boxes and Supplementary Fuses — When the unit MOCP device value exceeds 60--A, unit--mounted supplementary fuses are required for each heater circuit. These fuses are included in accessory Single Point Boxes, with power distribution and fuse blocks. The single point box will be insta...

Page 23 - Temperature (SAT) Sensor on Small Rooftop Units

23 C08199 Fig. 33 -- PremierLink Controller PREMIERLINK T CONTROL The PremierLink controller (see Fig. 33) 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 th...

Page 25 - SEN

25 Table 5 – 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 26 - Table 6 – PremierLink Sensor Usage

26 Table 6 – 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 28 - GRA

28 Connect T--56 -- See Fig. 38 for T--56 internal connections. Install a jumper between SEN and SET terminals as illustrated. Connect T--56 terminals to TB1 terminals 1, 3 and 5 (see Fig. 39). 2 3 4 5 6 1 SW1 SEN SET Cool Warm BRN (GND) BLU (SPT) RED(+) WHT(GND) BLK(-) CCN COM SENSOR WIRING JUMPERT...

Page 30 - tions; COVER REMOVED

30 SEN J5-5 J5-6 COM 9 7 TB1 TB1 IAQ Sensor PL 24 VAC C08274 Fig. 44 -- Indoor CO2 Sensor (33ZCSENCO2) Connec- tions Refer to Form 33CS--58SI, PremierLink Installation, Start--up, and Configuration Instructions, for detailed configuration information Outdoor Air Quality Sensor (PNO 33ZCSENCO2 plus w...

Page 32 - CCN Bus; ECONOMIZER SYSTEMS; The 50TC units may be equipped with a factory--installed

32 (typically WHT) to the unit’s TB1--14 terminal. Connect the CCN (--) lead (typically BLK) to the unit’s TB1--16 terminal. See Fig. 51. CCN Bus J2-1 J2-2 GND (WHT) 12 14 TB1 J2-3 – (BLK) 16 TB1 TB1 PL + (RED) C08276 Fig. 51 -- PremierLink CCN Bus Connections ECONOMIZER SYSTEMS The 50TC units may b...

Page 33 - Table 11 – EconoMi$er IV Input/Output Logic

33 4 3 5 2 8 6 7 1 10 11 9 12 PINK VIOLET BLACK BLUE YELL O W NOTE 1 NOTE 3 RUN 500 OHMRESISTOR 50HJ540573 ACTUATOR ASSEMBLY RED WHITE ECONOMISER2 PLUG DIRECT DRIVE ACTUATOR 4-20mA SIGNAL OAT SENSOR 4-20 mATO J9 ONPremierLinkBOARD 24 VAC TRANSFORMERGROUND NOTES: 1. Switch on actuator must be in run ...

Page 34 - IMPORTANT; Outdoor Dry Bulb Changeover

34 C06053 Fig. 56 -- EconoMi$er IV Functional View EconoMi$er IV Table 11 provides a summary of Economizer IV. Troubleshooting instructions are enclosed. A functional view of the EconoMi$er is shown in 56. Typical settings, sensor ranges, and jumper positions are also shown. An EconoMi$er IV simulat...

Page 35 - and LED Locations; Setpoints; Mounting Location

35 and D. See Fig. 59 for the corresponding temperature changeover values. C06034 Fig. 58 -- EconoMi$er IV Controller Potentiometer and LED Locations LED ON LED ON LED ON LED ON LED OFF 19 18 LED OFF LED OFF LED OFF 17 16 15 14 13 12 11 10 9 40 45 50 55 60 65 70 75 80 85 90 95 100 DEGREES FAHRENHEIT...

Page 36 - Differential Enthalpy Control

36 CONTROL CURVE ABCD CONTROL POINT APPROX. deg. F (deg. C) AT 50% RH 73 (23)70 (21)67 (19)63 (17) 12 1 4 16 18 20 22 24 26 28 30 32 3 4 36 38 40 42 44 46 9 0 1 0 0 80 70 6 0 50 40 30 20 10 ENTHALPY BTU PER POUND DRY AIR 85 (29) 90 (32) 95 (35) 100 (38) 105 (41) 110 (43) 35 (2) 35 (2) 40 (4) 40 (4) ...

Page 37 - Exhaust Setpoint Adjustment; Damper Movement

37 0 1000 2000 3000 4000 5000 6000 2 3 4 5 6 7 8 800 ppm900 ppm1000 ppm1100 ppm RANGE CONFIGURA TION (ppm) DAMPER VOLTAGE FOR MAX VENTILATION RATE CO SENSOR MAX RANGE SETTING 2 C06039 Fig. 64 -- CO2 Sensor Maximum Range Settings If a separate field-supplied transformer is used to power the IAQ senso...

Page 38 - CO

38 timeclock function in place of the jumper between TR and N. (See Fig. 52.) When the timeclock contacts are closed, the EconoMi$er IV control will be in occupied mode. When the timeclock contacts are open (removing the 24--v signal from terminal N), the EconoMi$er IV will be in unoccupied mode. De...

Page 40 - EconoMi$er IV Troubleshooting Completion; WIRING DIAGRAMS; PERSONAL INJURY HAZARD

40 2. Set the Enthalpy potentiometer to A. The Free Cool LED turns on. The actuator should drive to between 20 and 80% open. 3. Remove the 5.6 kilo--ohm resistor and jumper T to T1. The actuator should drive fully open. 4. Remove the jumper across T and T1. The actuator should drive fully closed. 5....

Page 42 - Initial Operation and Test; Memory Reset; Operating Sequence, Base Unit Controls

42 Use the Carrier network communication software to start up and configure the PremierLink controller. Changes can be made using the ComfortWORKS r software, ComfortVIEW t software, Network Service Tool, System Pilot t device, or Touch Pilot t device. The System Pilot and Touch Pilot are portable i...

Page 43 - Operating Sequence, PremierLink Control

43 outdoor--air dampers closed to maintain the proper supply--air temperature. HEATING, UNITS WITH ECONOMI$ER IV — When the room temperature calls for heat, the heating controls are energized as described in the Heating, Units Without Economizer section. ECONOMIZER IN OCCUPIED MODE — The economizer ...

Page 45 - Table 13 – Available Cooling Stages

45 S Whenever the Supply Fan Relay point is forced On in theSTATUS01 points display table The fan will also continue to run as long as compressors are on when transitioning from occupied to unoccupied with the exception of Fire Shutdown mode. If the Fire Shutdown input point is closed or forced in t...

Page 49 - Table 14 – Linkage Modes; FASTENER TORQUE VALUES

49 Once Linkage is active, the PremierLink controller’s own SPT, temperature setpoints, and occupancy are ignored and the controller will use the information provided by the remote linkage device. The following information will be received from the remote linked device and can be viewed in the maint...

Page 50 - Table 16 – Torque Values

50 Table 16 – 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 locking collar setsc...

Page 52 - APPENDIX I. MODEL NUMBER SIGNIFICANCE; Model Number Nomenclature

52 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 5 0 T C -- A 0 6 A 0 A 5 A 0 A 0 A 0 ____ ____ ____ Unit Heat Type Brand / Packaging 50 = Elec heat pkg rooftop 0 = Standard1 = LTL Tier / Model TC = Entry tier (with Puron) Electrical Opt...

Page 53 - APPENDIX II. PHYSICAL DATA

53 APPENDIX II. PHYSICAL DATA Physical Data (Cooling) 3 -- 6 TONS 50TC**04 50TC**05 50TC**06 50TC**07 Refrigeration System # Circuits / # Comp. / Type 1 / 1 / Scroll 1 / 1 / Scroll 1 / 1 / Scroll 1 / 1 / Scroll Puron (R --- 410a) charge A/B (lbs) 5.6 8.5 10.7 14.1 Oil A/B (oz) 25 42 42 56 Metering D...

Page 54 - APPENDIX III. FAN PERFORMANCE; General Fan Performance Notes:; pressure caused by any FIOPs or accessories.

54 APPENDIX III. FAN PERFORMANCE General Fan Performance Notes: 1. Interpolation is permissible. Do not extrapolate.2. External static pressure is the static pressure difference between the return duct and the supply duct plus the static pressure caused by any FIOPs or accessories. 3. Tabular data a...

Page 55 - Phase

55 APPENDIX III. FAN PERFORMANCE (cont.) 50TC**04 1 Phase 3 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 Field Supplied Drive 1 Standard Static Option Medium Static Option 900 554 0.14 681 0.22 783 0.32 870 0.42 947...

Page 56 - Phase

56 APPENDIX III. FAN PERFORMANCE (cont.) 50TC**04 3 Phase 3 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 Field Supplied Drive 1 Standard Static Option Medium Static Option 900 554 0.14 681 0.22 783 0.32 870 0.42 947...

Page 62 - Pulley Adjustment

62 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 04 1p ha se Standard Static 854 825 795 766 736 707 678 648 619 589 560 Medium Static 1175 1135 1094 1054 1013 973 932 892 851 811 770 High Static ---...

Page 63 - APPENDIX IV. ELECTRICAL DATA

63 APPENDIX IV. ELECTRICAL DATA 50TC**04 3 TONS V --- Ph --- Hz VOLTAGE RANGE COMP (ea) OFM (ea) IFM RLA LRA WATTS FLA TYPE Max WATTS Max AMP Draw EFF at Full Load FLA MIN MAX 208 --- 1 --- 60 187 253 16.6 79 325 1.5 Std Static 1000 5.1 70% 4.9 Med Static 1000 5.1 70% 4.9 230 --- 1 --- 60 187 253 16...

Page 69 - APPENDIX V. WIRING DIAGRAM LIST; Wiring Diagrams; Size; All

69 APPENDIX V. WIRING DIAGRAM LIST Wiring Diagrams 50TC DRAWING NUMBER.REV Size Voltage CONTROL POWER A04 208/230 --- 1 --- 60 48TM500212.04 48TM500211.08 208/230 --- 3 --- 60 48TM500212.04 48TM500214.07 460 --- 3 --- 60 48TM500212.04 48TM500214.07 575 --- 3 --- 60 48TM500212.04 48TM500214.07 A05 20...

Page 70 - APPENDIX VI. MOTORMASTER SENSOR LOCATIONS

70 APPENDIX VI. MOTORMASTER SENSOR LOCATIONS C08259 Fig. 67 -- 50TC*A04 Outdoor Circuiting C08260 Fig. 68 -- 50TC*A05/06 Outdoor Circuiting C08261 Fig. 69 -- 50TC*A07 Outdoor Circuiting C08262 Fig. 70 -- 50TC*A08 Outdoor Circuiting 50TC

Page 73 - I. PRELIMINARY INFORMATION; ELECTRICAL

73 START-UP CHECKLIST START-UP CHECKLIST (Remove and Store in Job File) I. PRELIMINARY INFORMATION MODEL NO.: SERIAL NO.: DATE: TECHNICIAN: II. PRE-START-UP (insert checkmark in box as each item is completed) j VERIFY THAT JOBSITE VOLTAGE AGREES WITH VOLTAGE LISTED ON RATING PLATE j VERIFY THAT ALL ...