Carrier 50TCQ 04 Series Service And Maintenance Instructions
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Carrier 50TCQ 04 Series Service And Maintenance Instructions

Carrier 50TCQ 04 Series Service And Maintenance Instructions

Single package heat pump/electric heat
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50TCQ*04-14
Single Package Heat Pump/Electric Heat
Nominal 3 to 12.5 Tons
With Puron (R-410A) Refrigerant
Service and Maintenance Instructions

TABLE OF CONTENTS

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SAFETY CONSIDERATIONS

1
Installation and servicing of air-conditioning equipment
can be hazardous due to system pressure and electrical
3
components. Only trained and qualified service personnel
3
should
install,
4
equipment. Untrained personnel can perform only the
basic maintenance functions such as replacing filters.
9
Trained service personnel should perform all other service
12
and maintenance operations.
13
When working on air-conditioning equipment, observe
15
precautions in the literature, tags and labels attached to
the unit, and other safety precautions that can apply.
23
Follow all safety codes. Wear approved safety glasses and
24
leather work gloves. Use quenching cloth for unbrazing
24
operations. Have fire extinguishers available for all
brazing operations.
25
Read these instructions thoroughly and follow all
28
warnings or cautions attached to the unit. Consult local
31
building codes and National Electrical Code (NEC) for
38
special requirements.
39
Recognize safety information. This is the safety ALERT
39
symbol
. When you see this symbol on the unit and in
instructions or manuals, be aware of the potential for
physical injury hazards.
39
41
Understand the signal words DANGER, WARNING, and
CAUTION. These words are used with the safety−ALERT
43
symbol. DANGER indicates a hazardous situation which,
43
if not avoided, will result in death or severe personal
44
injury. WARNING indicates a hazardous situation which,
if not avoided, could result in death or personal injury.
45
CAUTION indicates a hazardous situation which, if not
47
avoided, could result in minor to moderate injury or
product and property damage. NOTICE is used to address
49
practices not related to physical injury. NOTE is used to
62
highlight suggestions which will result in enhanced
installation, reliability, or operation.
79
83
repair,
or
service
air-conditioning

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Summary of Contents for Carrier 50TCQ 04 Series

  • Page 1: Table Of Contents

    50TCQ*04-14 Single Package Heat Pump/Electric Heat Nominal 3 to 12.5 Tons With Puron (R-410A) Refrigerant Service and Maintenance Instructions TABLE OF CONTENTS SAFETY CONSIDERATIONS SAFETY CONSIDERATIONS ....Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical UNIT ARRANGEMENT AND ACCESS...
  • Page 2 WARNING WARNING FIRE, EXPLOSION HAZARD ELECTRICAL OPERATION HAZARD Failure to follow this Failure to follow this warning could result in personal warning could result in injury or death. death, serious personal Before performing service or maintenance operations injury and/or property on unit, LOCK−OUT/TAGOUT the main power damage.

  • Page 3: Unit Arrangement And Access

    UNIT ARRANGEMENT AND ACCESS Seasonal Maintenance The following items should be checked at the beginning General of each season (or more often if local conditions and Fig. 1 and Fig. 2 show general unit arrangement and usage patterns dictate): access locations. Air Conditioning/Heat Pump: CONTROL BOX S Ensure outdoor fan motor mounting bolts are tight...

  • Page 4: Supply Fan (Blower) Section

    Removing the Return Air Filters: 1. Grasp the bottom flange of the upper panel. 2. Lift up and swing the bottom out until the panel disengages and pulls out. 3. Reach inside and remove filters from the filter rack. 4. Replace filters as required with similar replacement filters of same size.
  • Page 5 ECM Motor 95° Motor GRN/YEL Power Connections ECM Power L G N Transformer Motor Plug Position (460, 575v) (95° from vertical) 1 2 3 4 5 Speed Taps C09260 Fig. 5 − 50TCQ Direct−Drive Supply Fan Assembly Default Connection C09261 Fig.
  • Page 6 ECM Motor — The direct−drive motor is an X13 X13 ECM requires a voltmeter. Electronically Commutated Motor (ECM). An ECM 1. Disconnect main power to the unit. motor contains electronic circuitry used to convert 2. Remove the motor power plug (including the control single−phase line AC voltage into 3−phase DC voltage to BRN lead) and VIO control signal lead at the motor power the motor circuit.
  • Page 7 the fan shaft and an adjustable−pitch driver pulley is on STRAIGHTEDGE the motor. The pulleys are connected using a V−belt. See Fig. 8. BROWNING BELT TENSION CHECKER BLOWER PULLEY 1/2” V-BELT (1.3 cm) MOTOR PULLEY MOTOR BELT DEFLECTION MOUNTING C12093 MOTOR MOUNTING BOLTS (4) Fig.
  • Page 8 of a fixed flange side that faces the motor (secured to the bearing. Tighten the socket head cap screw. Torque cap motor shaft) and a movable flange side that can be rotated screw to 55−60 in−lb (6.2−6.8 Nm). See Fig. 11. Check around the fixed flange side that increases or reduces the the condition of the motor pulley for signs of wear.

  • Page 9: Heat Pump Refrigeration System

    Coil Cleaner is essential in extending the life of coils. The 50TCQ outdoor coil is fabricated with round tube This cleaner is available from Carrier Replacement copper hairpins and plate fins of various materials and/or Components Division (p/n P902−0301 for one gallon coatings (see “Appendix I −...
  • Page 10 C07089 C08207 Fig. 12 − Cleaning Condenser Coil (Size 04−06 shown) Fig. 14 − Separating Coil Sections CAUTION UNIT DAMAGE HAZARD Failure to follow this caution can result in corrosion and damage to the unit. Harsh chemicals, household bleach, acid or basic cleaners should not be used to clean outdoor or indoor coils of any kind.
  • Page 11 instructions included with the cleaner. The optimum 3. If economizer or two−position damper is installed, solution temperature is 100°F (38°C). remove economizer by disconnecting the Molex® plug and removing mounting screws. NOTE: Do NOT USE water in excess of 130°F (54°C), as 4.

  • Page 12: Puronr (R−410A) Refrigerant

    Reversing Valve and Check Valve Position Troubleshooting Refrigerant Pressure Problems and Check Valves See Fig. 15 on page 11. Refer to Fig. 15, above, and the Cooling Mode and Table 3 – Cooling Mode (each circuit) Heating Mode tables (Tables 3 and 4) above. Refrigerant System Pressure Access Ports Component Status/Position...

  • Page 13: Thermostatic Expansion Valve (Txv)

    Charge checking and adjustments must be made while the system is operating in Cooling only. to the underside of the diaphragm. 3. The needle valve on the pin carrier is spring loaded, No Charge: exerting pressure on the underside of the diaphragm.
  • Page 14 Replacing TXV CAUTION PERSONAL INJURY HAZARD Failure to follow this caution can result in injury to personnel and damage to components. THERMAL EXPANSION (TXV) VALVE Always wear approved safety glasses, work gloves other recommended Personal Protective Equipment (PPE) when working with refrigerants. 1.

  • Page 15: Cooling Charging Charts

    COOLING CHARGING CHARTS How 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.
  • Page 16 COOLING CHARGING CHARTS C09184 Fig. 19 − Cooling Charging Charts− 50TCQA04 C09185 Fig. 20 − Cooling Charging Charts − 50TCQA05...
  • Page 17 C09186 Fig. 21 − Cooling Charging Charts − 50TCQA06 C09187 Fig. 22 − Cooling Charging Charts − 50TCQA07...
  • Page 18 C09188 Fig. 23 − Cooling Charging Charts − 50TCQD08 C09189 Fig. 24 − Cooling Charging Charts − 50TCQD09...
  • Page 19 TIER 1 HP 10.0 TON CHARGING CHART R410A REFRIGERANT OUTDOOR TEMP °F / °C 1241 115 / 46 1172 105 / 41 1103 95 / 35 85 / 29 1034 75 / 24 65 / 18 55 / 13 45 / 7 SUCTION LINE TEMPERATURE (°F) SUCTION LINE TEMPERATURE (°C) 48TM501925 Rev B...
  • Page 20 C150383 Fig. 27 − Cooling Charging Charts − 50TCQD14, Circuit 2...
  • Page 21 Replacing the Compressor 2. Energize the compressor. 3. The suction pressure should drop and the discharge WARNING pressure should rise, as is normal on any start−up. NOTE: If the suction pressure does not drop and the FIRE, EXPLOSION HAZARD discharge pressure does not rise to normal levels: Failure to follow this 4.
  • Page 22 Table 6 – Heating and Cooling Troubleshooting PROBLEM CAUSE REMEDY Compressor and Power failure. Call power company. Outdoor Fan Fuse blown or circuit breaker tripped. Replace fuse or reset circuit breaker. Determine root cause. Will Not Start. Defective thermostat, contactor, transformer, Replace component.

  • Page 23: Convenience Outlets

    CONVENIENCE OUTLETS slots and align with the gasket; tighten the two screws until snug (do not over-tighten). WARNING 4. Mount the weatherproof cover to the backing plate as shown in Fig. 30. 5. Remove two slot fillers in the bottom of the cover to ELECTRICAL OPERATION HAZARD permit service tool cords to exit the cover.

  • Page 24: Heat Pump Controls

    The CTB contains no software and no logic. But it does include seven configuration jumpers that are cut to configure the board to read external optional and accessory controls, including that the unit is a heat pump. CUT FOR CUT FOR REHEAT/HP REHEAT/HP FOR PMR...

  • Page 25: Commercial Defrost Control

    Over−temperature: speed, this wheel has a characteristic that causes the fan shaft load to DECREASE when the static pressure in the The compressor has an internal protector to protect it unit−duct system increases and to INCREASE when the against excessively high discharge gas temperatures. static pressure in the unit−duct system decreases (and fan airflow rate increases).
  • Page 26 C09276 Fig. 34 − Defrost Control Board Location Table 8 – 50TCQ Defrost Board I/O and Jumper Configurations Inputs Point Name Type of I/O Connection Pin Number Unit Connection Note G Fan DI, 24Vac P2-3 LCTB-G Y1 Cool 1 DI, 24Vac P2-5 LCTB-Y1 Y2 Cool 2...
  • Page 27 Stage 1 Heating (both compressors run on 8−14 systems. frost and ice) or a 10 minute elapsed period expires, The 04−07 systems have only one compressor). whichever comes first. Auxiliary (Electric) Heat control — The 50TCQ unit On sizes 08−14, Circuit 1’s defrost thermostat DFT1 can be equipped with one or two auxiliary electric heaters, (located on the upper circuit of the outdoor coil on 08−09 to provide a second stage of heating.

  • Page 28: Electric Heaters

    Table 9 – Dip Switch Position Switch No. 90 minutes 60 minutes 30 minutes 120 minutes Fan Delay Shorting the jumpers for a period of 5 to 20 secs bypasses Unit heaters are marked with Heater Model Numbers. the remaining continuous run period and places the unit in However, heaters are ordered as and shipped in cartons a Forced Defrost mode.
  • Page 29 Table 10 – Heater Model Number Bare Heater Model Number Heater Sales Package PNO Includes:  Bare Heater  Carton and packing materials  Installation sheet Single Point Boxes and Supplementary Fuses — When pilot− circuit/manual reset limit switch to protect the unit the unit MOCP device value exceeds 60A, unit−mounted against over−temperature situations.
  • Page 30 See Fig. 41 through Fig. 44 and the unit wiring diagram TRAN1 FROM POWER SCHEMATIC for proper placement. GRN/ 3.2 AMPS TRAN2 FROM POWER SCHEMATIC GRN/ 3.2 AMPS NOTE 4 AND 6 ELECTRIC HEAT(ACCESSORY) SEE HEATER LABEL DIAGRAM C10561 Fig. 43 − TB4 Wiring (HP Only) NOTE: Optional Outdoor Temperature Control at One Heater Stage –...

  • Page 31: Smoke Detectors

    SMOKE DETECTORS Sensor The sensor (see Fig. 46) includes a plastic housing, a Smoke detectors are available as factory−installed options printed circuit board, a clear plastic cover, a sampling (FIOP) on 50TCQ models. Smoke detectors can be tube inlet and an exhaust tube. The sampling tube (when specified for Supply Air only or for Return Air with or used) and exhaust tube are attached during installation.
  • Page 32 Return Air with Economizer — The sampling tube is For installations using two sensors, the duct smoke detector does not differentiate which sensor signals an inserted through the side plates of the economizer alarm or trouble condition. housing, placing it across the return air opening on the unit base pan.
  • Page 33 Highlight C: 24V power signal via ORN lead is removed 3. Rotate the detector plate so the sensor is facing outwards and the sampling tube connection is on the at Smoke Detector input on CTB (Control Terminal bottom. See Fig. 51. Board);...
  • Page 34 C08246 Fig. 52 − Typical Smoke Detector System Wiring Sensor and Controller Tests Controller Alarm Test The controller alarm test checks the controller’s ability to Sensor Alarm Test initiate and indicate an alarm state. The sensor alarm test checks a sensor’s ability to signal an NOTICE alarm state.
  • Page 35 Dirty Controller Test NOTICE The dirty controller test checks the controller’s ability to initiate a dirty sensor test and indicate its results. OPERATIONAL TEST ALERT NOTICE Failure to follow this ALERT can result in an unnecessary evacuation of the facility. Changing the dirty sensor test operation will put the OPERATIONAL TEST ALERT detector into the alarm state and activate all automatic...
  • Page 36 NOTICE OPERATIONAL TEST ALERT Failure to follow this ALERT can result in an unnecessary evacuation of the facility. Holding the test magnet to the target area for longer than seven seconds will put the detector into the alarm state and activate all automatic alarm responses. SD−TRK4 Remote Alarm Test Procedure: 1.
  • Page 37 1. Disconnect power from the duct detector then remove (100% dirty). the sensor’s cover. See Fig. 54. S A wiring fault between a sensor and the controller is 2. Using a vacuum cleaner, clean compressed air, or a detected. soft bristle brush, remove loose dirt and debris from An internal sensor fault is detected upon entering the inside the sensor housing and cover.

  • Page 38: Premierlink™ Control

    The PremierLink controller (see Fig. 56) is compatible to the LVTB. Field connections are made at a 16−pole with Carrier Comfort Networkr (CCN) devices. This terminal block (TB1) located on the bottom shelf of the control is designed to allow users the access and ability to unit control box in front of the PremierLink controller The change factory−defined settings, thus expanding the...

  • Page 39: Rtu−Open Control System

    BACnet, Modbus, Johnson N2 and LonWorks. (See Fig. 57.) ELECTRICAL SHOCK HAZARD Carrier’s diagnostic display tools such as Field Assistant BACview6 Handheld or Virtual BACview can be used Failure to follow this warning could result in personal with the RTU−OPEN controller.
  • Page 40 C10818 Fig. 57 − RTU−OPEN Control Module...

  • Page 41: Pre−Start−Up

    PRE−START−UP 2. Read and follow instructions on all WARNING, CAUTION, and INFORMATION labels attached to, START−UP or shipped with, unit. WARNING WARNING PERSONAL INJURY HAZARD PERSONAL INJURY AND ENVIRONMENTAL HAZARD Failure to follow this warning could result in personal injury or death. Failure to follow this warning could result in personal injury or death.
  • Page 42 Additional Installation/Inspection 2. Turn off power to the unit and apply lockout/tagout procedures. Inspect field installed accessories proper 3. Reverse any two of the unit power leads. installation, making note of which ones do or do not require configuration changes. Inspect the RTU-OPEN’s 4.

  • Page 43: Start−Up, Premierlink

    System Pilot and Touch Pilot are portable interface devices that allow the user to change system set−up and setpoints from a zone sensor or terminal control module. During start−up, the Carrier software can also be used to verify communication with PremierLink controller. NOTICE SET−UP INSTRUCTIONS...

  • Page 44: Fastener Torque Values

    FASTENER TORQUE VALUES Table 13 – Torque Values Supply fan motor mounting 120  12 in-lbs 13.6  1.4 Nm Supply fan motor adjustment plate 120  12 in-lbs 13.6  1.4 Nm Motor pulley setscrew 72  5 in-lbs 8.1  0.6 Nm Fan pulley setscrew 72  5 in-lbs...

  • Page 45: Appendix I. Model Number Significance

    APPENDIX I. MODEL NUMBER SIGNIFICANCE Model Number Nomenclature Position: 9 10 11 12 13 14 15 16 17 18 – Example: ® Series - WeatherMaker Factory Assigned 50TC - Packaged Rooftop 0 = Standard 1 = LTL 3 = CA Seismic Compliant Q = Heat Pump 4 = LTL and CA Seismic Compliant Refrig.
  • Page 46 Serial Number Format POSITION NUMBER TYPICAL POSITION DESIGNATES Week of manufacture (fiscal calendar) Year of manufacture (“08” = 2008) Manufacturing location (G = ETP , Texas, USA) 6-10 Sequential number...

  • Page 47: Appendix Ii. Physical Data

    APPENDIX II. PHYSICAL DATA TABLE 14 – PHYSICAL DATA (COOLING) 3 − 6 TONS 50TCQA04 50TCQA05 50TCQA06 50TCQA07 Refrigeration System # Circuits / # Comp. / Type 1 / 1 / Scroll 1 / 1 / Scroll 1 / 1 / Scroll 1 / 1 / Scroll Puronr refrig.
  • Page 48 APPENDIX II. PHYSICAL DATA (CONT) TABLE 15 – PHYSICAL DATA (COOLING) 7.5 − 12.5 TONS 50TCQD08 50TCQD09 50TCQD12 50TCQD14 Refrigeration System # Circuits / # Comp. / Type 2 / 2 / Scroll 2 / 2 / Scroll 2 / 2 / Scroll 2 / 2 / Scroll Puronr refrig.

  • Page 49: Appendix Iii. Fan Performance

    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, please see the Electrical information section of this book.
  • Page 50 APPENDIX III. FAN PERFORMANCE (CONT) TABLE 16 – 50TCQA04 ELECTRIC DRIVE, X13 TABLE 17 – 50TCQA04 ELECTRIC DRIVE, X13 MOTOR, 3 TON HORIZONTAL SUPPLY MOTOR, 3 TON VERTICAL SUPPLY SPEED SPEED (TORQUE) (TORQUE) 0.70 0.31 0.44 0.22 0.60 0.30 0.35 0.21 1050 0.50...
  • Page 51 APPENDIX III. FAN PERFORMANCE (CONT) TABLE 18 – 50TCQA05 ELECTRIC DRIVE, X13 TABLE 19 – 50TCQA05 ELECTRIC DRIVE, X13 MOTOR, 4 TON HORIZONTAL SUPPLY MOTOR, 4 TON VERTICAL SUPPLY SPEED SPEED (TORQUE) (TORQUE) 1200 0.75 0.48 1200 0.50 0.39 1300 0.63 0.46 1300...
  • Page 52 APPENDIX III. FAN PERFORMANCE (CONT) TABLE 20 – 50TCQA06 ELECTRIC DRIVE, X13 TABLE 21 – 50TCQA06 ELECTRIC DRIVE, X13 MOTOR, 5 TON HORIZONTAL SUPPLY MOTOR, 5 TON VERTICAL SUPPLY SPEED SPEED (TORQUE) (TORQUE) 1500 1.19 0.74 1500 1.00 0.70 1625 1.01 0.73 1625...
  • Page 53 APPENDIX III. FAN PERFORMANCE (CONT) TABLE 22 – 50TCQA04 3 TON HORIZONTAL SUPPLY AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 0.13 0.23 0.34 0.47 0.61 0.15 0.25 0.37 0.50 1015 0.64 1050 0.18 0.28 0.40 0.53 1030 0.68 1125 0.20 0.31 0.43 0.57 1047...
  • Page 54 APPENDIX III. FAN PERFORMANCE (CONT) TABLE 24 – 50TCQA05 4 TON HORIZONTAL SUPPLY AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 1200 0.23 0.34 0.47 0.61 1064 0.76 1300 0.28 0.39 0.52 1007 0.67 1088 0.82 1400 0.33 0.45 0.58 1034 0.73 1113 0.89 1500...
  • Page 55 APPENDIX III. FAN PERFORMANCE (CONT) TABLE 26 – 50TCQA06 5 TON HORIZONTAL SUPPLY AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 1500 0.33 0.46 0.60 1023 0.75 1101 0.90 1625 0.40 0.54 0.68 1054 0.84 1131 1.00 1750 0.48 0.63 1004 0.78 1087 0.94 1162...
  • Page 56 APPENDIX III. FAN PERFORMANCE (CONT) TABLE 28 – 50TCQA07 6 TON HORIZONTAL SUPPLY AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 1800 0.51 0.66 1018 0.82 1100 0.98 1174 1.15 1950 0.62 0.79 1061 0.95 1140 1.13 1213 1.31 2100 0.75 1019 0.92 1104 1.10...
  • Page 57 APPENDIX III. FAN PERFORMANCE (CONT) TABLE 30 – 50TCQD08 7.5 TON HORIZONTAL SUPPLY AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 2250 0.28 0.40 0.52 0.66 0.80 2438 0.34 0.46 0.59 0.73 0.88 2625 0.40 0.53 0.67 0.82 0.97 2813 0.47 0.61 0.76 0.91 1.08...
  • Page 58 APPENDIX III. FAN PERFORMANCE (CONT) TABLE 32 – 50TCQD09 8.5 TON HORIZONTAL SUPPLY AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 2550 0.39 0.52 0.66 0.80 0.96 2763 0.47 0.61 0.76 0.91 1.07 2975 0.57 0.72 0.87 1.03 1.20 3188 0.68 0.83 1.00 1.17 1.34...
  • Page 59 APPENDIX III. FAN PERFORMANCE (CONT) TABLE 34 – 50TCQD12 10 TON HORIZONTAL SUPPLY AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 3000 0.58 0.73 0.88 1.05 1.22 3250 0.71 0.87 1.04 1.21 1.39 3500 0.86 1.03 1.21 1.39 1.58 3750 1.03 1.21 1.40 1.59 1.79...
  • Page 60 APPENDIX III. FAN PERFORMANCE (CONT) TABLE 36 – 50TCQD14 12.5 TON HORIZONTAL SUPPLY AVAILABLE EXTERNAL STATIC PRESSURE (IN. WG) 3750 0.53 0.74 0.98 1.26 1.56 4063 0.63 0.86 1.11 1.39 1.69 4375 0.75 0.99 1.25 1.53 1.85 4688 0.89 1.14 1.40 1.70 2.02...
  • Page 61 APPENDIX III. FAN PERFORMANCE (CONT) TABLE 38 – PULLEY ADJUSTMENT − BELT DRIVE MOTOR PULLEY TURNS OPEN MOTOR/DRIVE UNIT COMBO Medium Static 1251 1208 1165 1121 1078 1035 High Static 1466 1423 1380 1337 1294 1251 1207 1164 1121 1078 1035 Medium Static 1303...

  • Page 62: Appendix Iv. Wiring Diagrams

    APPENDIX IV. WIRING DIAGRAMS Wiring Diagrams 50TCQA SIZE VOLTAGE CONTROL POWER 208/230-1-60 48TM501434-J 48TM501435-I 208/230-3-60 48TM501434-J 48TM501436-I 460-3-60 48TM501434-J 48TM501515-J 575-3-60 48TM501520-J 48TM501516-J 208/230-1-60 48TM501434-J 48TM501435-I 208/230-3-60 48TM501434-J 48TM501436-I 460-3-60 48TM501434-J 48TM501515-J 575-3-60 48TM501520-J 48TM501516-J 208/230-1-60 48TM501434-J 48TM501435-I 208/230-3-60 48TM501434-J 48TM501436-I 460-3-60 48TM501434-J...
  • Page 63 APPENDIX IV. WIRING DIAGRAMS (CONT) C150426 Fig. 58 − 50TCQ A04/A05/A06/A07 Control Wiring Diagram − 208/230−1−60; 208/230−3−60; 460−3−60...
  • Page 64 APPENDIX IV. WIRING DIAGRAMS (CONT) C150427 Fig. 59 − 50TCQ A04/A05/A06/A07 Control Wiring Diagram − 575−3−60...
  • Page 65 APPENDIX IV. WIRING DIAGRAMS (CONT) C150428 Fig. 60 − 50TCQ D08/D09 Control Wiring Diagram − 208/230−3−60; 460−3−60; 575−3−60...
  • Page 66 APPENDIX IV. WIRING DIAGRAMS (CONT) C150328 Fig. 61 − 50TCQ D12 Control Wiring Diagram − 208/230−3−60; 460−3−60; 575−3−60...
  • Page 67 APPENDIX IV. WIRING DIAGRAMS (CONT) C150429 Fig. 62 − 50TCQ D14 Control Wiring Diagram − 208/230−3−60; 460−3−60; 575−3−60...
  • Page 68 APPENDIX IV. WIRING DIAGRAMS (CONT) C150243 Fig. 63 − 50TCQ A04/A05/A06/A07 Power Wiring Diagram − 208/230−1−60...
  • Page 69 APPENDIX IV. WIRING DIAGRAMS (CONT) C12629 Fig. 64 − 50TCQ A04/A05/A06/A07 Power Wiring Diagram − 208/230−3−60...
  • Page 70 APPENDIX IV. WIRING DIAGRAMS (CONT) C12353 Fig. 65 − 50TCQ A04/A05/A06/A07 Power Wiring Diagram − 460−3−60...
  • Page 71 APPENDIX IV. WIRING DIAGRAMS (CONT) C12630 Fig. 66 − 50TCQ A04/A05/A06/A07 Power Wiring Diagram − 575−3−60...
  • Page 72 APPENDIX IV. WIRING DIAGRAMS (CONT) C12626 Fig. 67 − 50TCQ D08/D09 Power Wiring Diagram − 208/230−3−60; 460−3−60; 575−3−60...
  • Page 73 APPENDIX IV. WIRING DIAGRAMS (CONT) C12633 Fig. 68 − 50TCQ D12 Power Wiring Diagram − 208/230−3−60...
  • Page 74 APPENDIX IV. WIRING DIAGRAMS (CONT) C150327 Fig. 69 − 50TCQ D12 Power Wiring Diagram − 460−3−60; 575−3−60...
  • Page 75 APPENDIX IV. WIRING DIAGRAMS (CONT) C150434 Fig. 70 − 50TCQ D14 Power Wiring Diagram − 208/230−3−60...
  • Page 76 APPENDIX IV. WIRING DIAGRAMS (CONT) C150431 Fig. 71 − 50TCQ D14 Power Wiring Diagram − 460−3−60; 575−3−60...
  • Page 77 APPENDIX IV. WIRING DIAGRAMS (CONT) C150432 Fig. 72 − 50TCQ PremierLink Control Diagram...
  • Page 78 APPENDIX IV. WIRING DIAGRAMS (CONT) C12615 Fig. 73 − 50TCQ RTU−Open Control Diagram...

  • Page 79: Appendix V. Motormaster Sensor Locations

    APPENDIX V. MOTORMASTER SENSOR LOCATIONS C10646 Fig. 74 − 50TCQA04 Outdoor Circuiting SENSOR LOCATION C12332 Fig. 75 − 50TCQA05/A06 Outdoor Circuiting...
  • Page 80 APPENDIX V. MOTORMASTER SENSOR LOCATIONS (CONT) Sensor Location C09194 Fig. 76 − 50TCQA07 Outdoor Circuiting Sensor Location C09195 Fig. 77 − 50TCQD08/D09 Outdoor Circuiting...
  • Page 81 APPENDIX V. MOTORMASTER SENSOR LOCATIONS (CONT) SENSOR LOCATION Locate sensor on feeder tube (as shown on coil whose headers are closest to the compressor access panel) C10939 Fig. 78 − 50TCQD12 Outdoor Circuiting...
  • Page 82 APPENDIX V. MOTORMASTER SENSOR LOCATIONS (CONT) C11096 Fig. 79 − 50TCQD14 Outdoor Circuiting...

  • Page 83: 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 PACKAGING MATERIALS HAVE BEEN REMOVED FROM UNIT j REMOVE ALL SHIPPING HOLD DOWN BOLTS AND BRACKETS PER INSTALLATION INSTRUCTIONS j VERIFY THAT CONDENSATE CONNECTION IS INSTALLED PER INSTALLATION INSTRUCTIONS...
  • Page 84 Copyright 2015 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231 Catalog No: 50TCQ-4-14-01SM Edition Date: 12/15 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations. Replaces: 50TCQ-01SM...

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