Carrier Comfort 50VL-B Installation Instructions Manual
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Carrier Comfort 50VL-B Installation Instructions Manual

14 seer single-packaged air conditioner system with puron (r ---410a) refrigerant single and three phase 2-5 nominal tons
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50VL---B
Comfortt 14 SEER Single ---Packaged Air
Conditioner System with Puron (R ---410A) Refrigerant
Single and Three Phase
2---5 Nominal Tons (Sizes 24---60)
IMPORTANT: Effective January 1, 2015, all split system and
packaged air conditioners must be installed pursuant to applicable
regional efficiency standards issued by the Department of Energy.
NOTE:
Read the entire instruction manual before starting the
installation.
NOTE:
Installer: Make sure the Owner's Manual and Service
Instructions are left with the unit after installation.

TABLE OF CONTENTS

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Installation Instructions
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PAGE
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2- -10
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7
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SAFETY CONSIDERATIONS
7
Improper installation adjustment, alteration, service, maintenance,
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or use can cause explosion, fire, electrical shock, or other
8
conditions which may cause death, personal injury, or property
8
damage. Consult a qualified installer, service agency, or your
9
distributor or branch for information or assistance. The qualified
9
installer or agency must use factory- -authorized kits or accessories
10
when modifying this product Refer to the individual instructions
10
packaged with the kits or accessories when installing.
10
Follow all safety codes. Wear safety glasses, protective clothing,
10
and work gloves. Use quenching cloth for brazing operations.
12
Have a fire extinguisher available. Read these instructions
12- -14
thoroughly and follow all warnings or cautions included in
12
literature and attached to the unit. Consult local building codes, the
12
current editions of the National Electrical Code (NEC) NFPA 70.
12
In Canada refer to the current editions of the Canadian electrical
12
Code CSA C22.1.
13
14
Recognize safety information. This is the safety- -alert symbol
14
When you see this symbol on the unit and in instructions or
28- -30
manuals, be alert to the potential for personal injury. Understand
28
these signal words; DANGER, WARNING, and CAUTION. These
28
words are used with the safety- -alert symbol. DANGER identifies
29
the most serious hazards which will result in severe personal injury
29
or death. WARNING signifies hazards which could result in
29
personal injury or death. CAUTION is used to identify unsafe
30
practices which may result in minor personal injury or product and
30
property damage. NOTE is used to highlight suggestions which
30
will result in enhanced installation, reliability, or operation.
31
31
1
Fig. 1 - - Unit 50VL- -B
A09034
.

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  • Page 1: Table Of Contents

    50VL---B Comfortt 14 SEER Single ---Packaged Air Conditioner System with Puron (R ---410A) Refrigerant Single and Three Phase 2---5 Nominal Tons (Sizes 24---60) Installation Instructions IMPORTANT: Effective January 1, 2015, all split system and packaged air conditioners must be installed pursuant to applicable regional efficiency standards issued by the Department of Energy.

  • Page 2: Introduction

    prevent loss or damage, leave all parts in original packages until WARNING installation. If the unit is to be mounted on a curb in a downflow application, ELECTRICAL SHOCK HAZARD review Step 7 to determine which method is to be used to remove the downflow panels before rigging and lifting into place.
  • Page 3 A14419 Fig. 2 - - 24- -36 Unit Dimensions...
  • Page 4 A14420 Fig. 3 - - 42- -60 Unit Dimensions...
  • Page 5 Dashed lines show cross support location for large basepan units. HVAC unit HVAC unit basepan base rails Sealing Gasket Roofcurb Anchor screw Wood nailer* Flashing field supplied Roofcurb* Insulation (field supplied) Roofing material field supplied Cant strip field supplied SMALL/COMMON CURB A09413 *Provided with roofcurb A09090...
  • Page 6 CAUTION - NOTICE TO RIGGERS PRUDENCE - AVIS AUX MANIPULATEUR ACCESS PANELS MUST BE IN PLACE WHEN RIGGING. PANNEAUX D'ACCES DOIT ÊTRE EN PLACE POUR MANIPULATION. Use top skid as spreader bar. / Utiliser la palette du haut comme barre de répartition DUCTS MINIMUM HEIGHT: 36"...

  • Page 7: Provide Clearances

    Step 3 — Provide Clearances INSPECTION The required minimum service clearances are shown in Fig. 2 and Prior to initial use, and at monthly intervals, all rigging shackles, 3. Adequate ventilation and outdoor air must be provided. The clevis pins, and straps should be visually inspected for any damage, outdoor fan draws air through the outdoor coil and discharges it evidence of wear, structural deformation, or cracks.

  • Page 8: Connect Condensate Drain

    Step 6 — Connect Condensate Drain (SMACNA) and Air Conditioning Contractors Association (ACCA) minimum installation standards for residential NOTE: When installing condensate drain connection be sure to heating and air conditioning systems. comply with local codes and restrictions. 5. Secure all ducts to building structure. Flash, weatherproof, Unit disposes of condensate water through a 3/4 in.

  • Page 9: Install Electrical Connections

    CAUTION UNIT COMPONENT DAMAGE HAZARD Failure to follow this caution may result in damage to the unit being installed. 1. Make all electrical connections in accordance with NFPA 70 (NEC) (latest edition) and local electrical codes governing such wiring. In Canada, all electrical connections must be in accordance with CSA standard C22.1 Canadian Electrical Code Part 1 and applicable local codes.

  • Page 10: Special Procedures For 208V Operation

    SPECIAL PROCEDURES FOR 208- - V OPERATION WARNING HIGH VOLTAGE POWER LEADS POWER (SEE UNIT WIRING SUPPLY LABEL) ELECTRICAL SHOCK HAZARD 3-PHASE SHOWN 1-PHASE USES Failure to follow this warning could result in personal TWO POWER injury or death. EQUIP GR LEADS FIELD-SUPPLIED Before installing or servicing system, always turn off main...
  • Page 11 Table 1 – Physical Data- -Unit UNIT SIZE NOMINAL CAPACITY (ton) 2 ---1/2 3 ---1/2 SHIPPING WEIGHT* lb. SHIPPING WEIGHT* (kg) Scroll COMPRESSORS Quantity REFRIGERANT (R --- 410A) 12.5 Quantity lb Quantity (kg) REFRIGERANT METERING DEVICE OUTDOOR COIL Rows...Fins/in. 1...21 1...21 2...21 2...21...

  • Page 12: Pre- -Start- -Up

    PRE- -START- - UP START- - UP Step 1 — Check for Refrigerant Leaks WARNING WARNING ENVIRONMENTAL, FIRE, EXPLOSION, ELECTRICAL SHOCK HAZARD EXPLOSION HAZARD Failure to follow this warning could result in personal Failure to follow this warning could injury or death and/or property damage. result in death, serious personal injury, 1.

  • Page 13: Indoor Airflow And Airflow Adjustments

    INDOOR AIRFLOW AND AIRFLOW ADJUST- WARNING MENTS CAUTION EXPLOSION HAZARD Failure to follow this warning could result in death, serious personal injury, UNIT OPERATION HAZARD and/or property damage. Failure to follow this caution may result in unit damage. Never use air or gases containing For cooling operation, the recommended airflow is 350 to oxygen for leak testing or operating 450 cfm for each 12,000 Btuh of rated cooling capacity.

  • Page 14: Continuous Fan Operation

    1. Using Fig. 11, move the two pin DEHUM jumper from the 3. Select speed tap from Table 4 that will achieve required “STD” position to the “DEHUM” position. airflow from Table 2. 2. Remove fan speed tap wire from the “LOW” terminal on 4.
  • Page 21 A11004 Fig. 12 - - Connection Wiring Diagram 208/230- -1- -60...
  • Page 22 A11003 Fig. 12 Cont. - - Ladder Wiring Diagram 208/230- -1- -60...
  • Page 23 A11010 Fig. 13 - - Connection Wiring Diagram 208/230- -3- -60...
  • Page 24 A11009 Fig. 13 Cont. - - Ladder Wiring Diagram 208/230- -3- -60...
  • Page 25 CONNECTION WIRING DIAGRAM DANGER: ELECTRICAL SHOCK HAZARD DISCONNECT POWER BEFORE SERVICING SCHEMATIC IF USED 460-3-60 FOR WIRING WITH FIELD ELECTRIC HEATERS SUPPLY SEE SCHEMATIC POWER ON HEATER UNIT ONLY ACCESSORY. MAXIMUM WIRE SIZE 2 AWG. COMPRESSOR PLUG COMP EQUIP_GND FU1 5 AMP SEE NOTE FU2 5 AMP ECON...
  • Page 26 LADDER WIRING DIAGRAM DANGER: ELECTRICAL SHOCK HAZARD DISCONNECT POWER BEFORE SERVICING IF USED COMP 460V TRAN 460V SEE NOTE 24VAC FUSE P1-1 "R" P1-2 "C" P1-3 "Y1/Y" P1-4 "G" P1-5 "Y2/DH" P1-6 "W2" P1-7 "W3" P2-1 P2-2 P2-3 P2-4 C,TRAN ACCESSORY ELECTRIC HEAT P4-1...
  • Page 27 A09089 Fig. 15 - - Cooling Charging Chart...

  • Page 28: Maintenance

    MAINTENANCE Air Filter IMPORTANT: Never operate the unit without a suitable air filter To ensure continuing high performance, and to minimize the in the return- -air duct system. Always replace the filter with the possibility of premature equipment failure, periodic maintenance same dimensional size and type as originally installed.

  • Page 29: Outdoor Coil, Indoor Coil, And Condensate Drain Pan

    FAN GRILLE MOTOR MOTOR SHAFT A08505 MAX DISTANCE BETWEEN TOP OF FAN GRILLE AND BOTTOM OF FAN BLADE “A” SIZE Fig. 16 - - Fan Blade Position Inspect the drain pan and condensate drain line when inspecting the coils. Clean the drain pan and condensate drain by removing all foreign matter from the pan.

  • Page 30: Refrigerant Circuit

    After inspecting the electrical controls and wiring, replace the NOTE: Because these switches are attached to refrigeration access panels (see Fig. 17). Start the unit, and observe at least one system under pressure, it is not advisable to remove this device for complete heating cycle and one complete cooling cycle to ensure troubleshooting unless you are reasonably certain that a problem proper operation.

  • Page 31: Troubleshooting

    Liquid Line Filter Drier compatible servicing equipment or replacement components may result in property damage or injury. The filter drier is specifically designed to operate with Puron. Use Compressor Oil only factory- -authorized components. Filter drier must be replaced whenever the refrigerant system is opened. When removing a filter The Copeland scroll compressor uses 3MAF POE oil.
  • Page 32 Table 10 – Troubleshooting Chart SYMPTOM CAUSE REMEDY Power failure Call power company Fuse blown or circuit breaker tripped Replace fuse or reset circuit breaker Defective contactor, transformer, control relay, or high-- Replace component pressure, loss--of--charge or low--pressure switch Compressor and outdoor fan will not start Insufficient line voltage Determine cause and correct Incorrect or faulty wiring...
  • Page 33 AIR CONDITIONER WITH PURON (R- -410A) QUICK REFERENCE GUIDE Puron refrigerant operates at 50- -70 percent higher pressures than R- -22. Be sure that servicing equipment and replacement components are designed to operate with Puron. Puron refrigerant cylinders are rose colored. S Puron refrigerant cylinders manufactured prior to March 1, 1999, have a dip tube that allows liquid to flow out of cylinder in upright position.
  • Page 34 { Measured at liquid line leaving condenser. Catalog No:50VL---11SI Copyright 2015 Carrier Corp. S 7310 W. Morris St. S Indianapolis, IN 46231 Edition Date: 03/15 Manufacturer reserves the right to change, at any time, specifications and designs without notice and without obligations.

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