Carrier 50VZ Installation, Operation And Maintenance Instructions
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Carrier 50VZ Installation, Operation And Maintenance Instructions

Vertical air-cooled split-system cooling units and heat pumps
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50VZ/PZ
38VZ/PZ+40PZ
Vertical Air-Cooled
Split-System Cooling Units
and Heat Pumps
Installation, operation and maintenance instructions
1

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Summary of Contents for Carrier 50VZ

  • Page 1 50VZ/PZ 38VZ/PZ+40PZ Vertical Air-Cooled Split-System Cooling Units and Heat Pumps Installation, operation and maintenance instructions...

  • Page 2: Table Of Contents

    Operating limits ....................................32 OPTIONS AND ACCESSORIES ..............................32 Hot water heating coil ..................................32 Electric resistance heaters .................................. 33 GENERAL MAINTENANCE ............................... 34 SERVICE ......................................34 TRANSFORMATION TO SPLIT SYSTEM (50VZ/PZ units) ....................35 FINAL RECOMMENDATIONS ..............................35 TROUBLESHOOTING CHART ..............................36...

  • Page 3: Start-Up Checklist

    Start up date: ..............Equipment sold by: Contract No: ...................................... Installed by: Contract No: ........................................Site address: ............................................. Equipment type and serial No: 50VZ/PZ ................................... 38VZ/PZ .................................... 40PZ ....................................ELECTRICAL DATA: Supply voltage Ph 1: . Volts Ph 2: Volts Ph 3 ..Volts...
  • Page 4 Table 1 - Physical data 50VZ (40PZ/38VZ) Nom. cooling capacity* 14.60 22.74 29.75 27.80 35.05 45.21 53.90 63.89 74.35 Unit weight 50VZ 1033 40PZ 38VZ Compressor Hermetic reciprocating Scroll Oil charge 1.8 x 2 4 x 2 4 x 2...
  • Page 5 Table 2 - Electrical data 50VZ (40PZ/38VZ) ± Nominal voltage 10%* Nominal power input** 11.1 11.1 14.0 14.0 14.6 14.6 18.1 18.1 21.4 21.4 25.4 25.4 30.0 30.0 37.6 37.6 Nominal current drawn** 23.8 13.8 33.1 19.1 39.4 22.8 44.9 26.0...

  • Page 6: Dimensions

    Optional discharge Transport skid Power connection 38VZ/PZ 015 Optional discharge Cable inlet Transport skid Drain 3/4" gas 40PZ 015 Optional discharge Cable inlet Transport skid Drain When designing an installation, always use up-to-date drawings, available from your local Carrier office...
  • Page 7 Optional discharge Transport skid Power connection 38VZ/PZ 025 Optional discharge Cable inlet Transport skid Drain 3/4" gas 40PZ 025 Optional discharge Cable inlet Transport skid Drain When designing an installation, always use up-to-date drawings, available from your local Carrier office...
  • Page 8 50VZ/PZ 030 Transport skid Power connection 38VZ/PZ 030 Optional discharge Cable inlet Transport skid Drain 3/4" gas 40PZ 030 Optional discharge Cable inlet Transport skid Drain When designing an installation, always use up-to-date drawings, available from your local Carrier office...
  • Page 9 Optional discharge Transport skid Power connection 38VZ/PZ 031 Optional discharge Cable inlet Transport skid Drain 3/4" gas 40PZ 031 Optional discharge Cable inlet Transport skid Drain When designing an installation, always use up-to-date drawings, available from your local Carrier office...
  • Page 10 Optional discharge Transport skid Power connection 38VZ/PZ 040 Optional discharge Cable inlet Transport skid Drain 3/4" gas 40PZ 040 Optional discharge Cable inlet Transport skid Drain When designing an installation, always use up-to-date drawings, available from your local Carrier office...
  • Page 11 Optional discharge Transport skid Power connection 38VZ/PZ 045-055 Optional discharge Cable inlet Transport skid Drain 3/4" gas 40PZ 045-055 Optional discharge Cable inlet Transport skid Drain When designing an installation, always use up-to-date drawings, available from your local Carrier office...
  • Page 12 Optional discharge Transport skid Power connection 38VZ/PZ 065-075 Optional discharge Cable inlet Transport skid Drain 3/4" gas 40PZ 065-075 Optional discharge Cable inlet Transport skid Drain When designing an installation, always use up-to-date drawings, available from your local Carrier office...

  • Page 13: Service Area, Mm

    Fig. 8 - Service area, mm 50VZ/PZ 38VZ/PZ 40PZ Service space behind the unit depends on whether or not the unit is installed with outdoor air ducts. It is also necessary to leave space for cleaning and inspection of the outdoor heat exchanger.

  • Page 14: Centre Of Gravity, Mm

    Fig. 9 - Centre of gravity, mm (approx.) 50VZ/PZ (all sizes) 50VZ/PZ 1116 1122 1324 1359 1 1 1 1 1 Measured from point Fig. 10 - Centre of gravity, mm (approx.) 38VZ/PZ (all sizes) 1 1 1 1 1...

  • Page 15: Weight Distribution, Kg

    Fig. 12 - Weight distribution, kg (approx.) 50VZ/PZ (all sizes) Support 50VZ points Support 50PZ points Control box Fig. 13 - Weight distribution, kg (approx.) 38VZ/PZ (all sizes) Support 38VZ points Support 38PZ points Control box Fig. 14 - Weight distribution, kg (approx.)

  • Page 16: Repositioning Unit Air Discharge

    Indoor air discharge (50VZ/PZ) Indoor air discharge (40PZ) The 50VZ/PZ units leave the factory with the indoor unit air The 40PZ units leave the factory with the air discharge set to discharge set to vertical, as indicated in the dimensional figures. It horizontal, as indicated in the dimensional figures.
  • Page 17 U-bracket Blanking plate Fan supply air ducts Drive belt(s) Fan pulley Fig. 16 - Repositioning unit air discharge (50VZ/PZ 015, 045, 055, 065, 075 40PZ 015, 045, 055, 065, 075) Front view Rear view Legend Side access panel Rear discharge panel...

  • Page 18: Fan Performance

    Fan performance 50VZ/PZ 015 indoor fan (40PZ 015) standard 50VZ/PZ 015 indoor fan (40PZ 015) optional larger transmission transmission Air flow, l/s Air flow, l/s 50VZ/PZ 015 outdoor fan (38VZ/PZ 015) standard transmission Air flow, l/s Indoor fan Outdoor fan...
  • Page 19 Fan performance 50VZ/PZ 025 indoor fan (40PZ 025) standard 50VZ/PZ 025 indoor fan (40PZ 025) optional larger transmission transmission Air flow, l/s Air flow, l/s 50VZ/PZ 025 outdoor fan (38VZ/PZ 025) standard 50VZ/PZ 025 outdoor fan (38PV/PZ 025) optional transmission...
  • Page 20 Fan performance 50VZ/PZ 030/031 indoor fan (40PZ 030/031) standard 50VZ/PZ 030/031 indoor fan (40PZ 030/031) optional transmission larger transmission Air flow, l/s Air flow, l/s 50VZ/PZ 030/031 outdoor fan (38VZ/PZ 030/031) 50VZ/PZ 030/031 outdoor fan (38PV/PZ 030/031) standard transmission optional larger transmission...
  • Page 21 Fan performance 50VZ/PZ 040 indoor fan (40PZ 040) standard 50VZ/PZ 040 indoor fan (40PZ 040) optional larger transmission transmission Air flow, l/s Air flow, l/s 50VZ/PZ 040 outdoor fan (38VZ/PZ 040) standard 50VZ/PZ 040 outdoor fan (38PV/PZ 040) optional transmission...
  • Page 22 Fan performance 50VZ/PZ 045 indoor fan (40PZ 045) standard 50VZ/PZ 045 indoor fan (40PZ 045) optional larger transmission transmission Air flow, l/s Air flow, l/s 50VZ/PZ 045 outdoor fan (38VZ/PZ 045) standard 50VZ/PZ 045 outdoor fan (38PV/PZ 045) optional transmission...
  • Page 23 Fan performance 50VZ/PZ 055 indoor fan (40PZ 055) standard 50VZ/PZ 055 indoor fan (40PZ 055) optional larger transmission transmission Air flow, l/s Air flow, l/s 50VZ/PZ 055 outdoor fan (38VZ/PZ 055) standard 50VZ/PZ 055 outdoor fan (38PV/PZ 055) optional transmission...
  • Page 24 Fan performance 50VZ/PZ 065 indoor fan (40PZ 065) standard 50VZ/PZ 065 indoor fan (40PZ 065) optional larger transmission transmission Air flow, l/s Air flow, l/s 50VZ/PZ 065 outdoor fan (38VZ/PZ 065) standard 50VZ/PZ 065 outdoor fan (38PV/PZ 065) optional transmission...
  • Page 25 Fan performance 50VZ/PZ 075 indoor fan (40PZ 075) standard 50VZ/PZ 075 indoor fan (40PZ 075) optional larger transmission transmission Air flow, l/s Air flow, l/s 50VZ/PZ 075 outdoor fan (38VZ/PZ 075) standard 50VZ/PZ 075 outdoor fan (38PV/PZ 075) optional transmission...

  • Page 26: Safety Considerations

    Follow all safety codes. Wear safety glasses and work gloves. Use a quenching cloth for unbrazing operations. Fig. 17 - Rigging (50VZ/PZ) WARNING: Before performing service or maintenance operations on the unit, turn off the main power switch to the unit.

  • Page 27: Ductwork (Indoor Air Discharge)

    NOTE: All duct sizing and design work should be carried out by qualified technicians. Condensate drainage 50VZ/PZ and 38VZ/PZ units The indoor unit evacuates condensate water via the condensate pan of the outdoor heat exchanger (38VZ/PZ) which incor- porates two male ø 3/4" gas drain connections, one for each side of the unit.

  • Page 28: Electrical Connections

    VERY MPORTANT: The installer must protect the unit power Route all cables through the conduits incorporated in the unit supply line with automatic disconnect devices, a thermal- (50VZ/PZ or 38VZ/PZ) to the main disconnect switch terminals magnetic switch and a differential disconnect switch, suitable (see wiring diagram).

  • Page 29: Refrigerant Line Connections (38Vz/Pz And 40Pz)

    General Voltage at 24 V AC When designing refrigerant lines the following must be kept in mind: 50VZ units standard connections: Connection to 24 V Depending on the unit arrangement: Protection device indication Common 24 V Fig.

  • Page 30: Sizing

    Fig. 25 - Discharge line For both option A (Figure 22) and option B (Figure 23) the following conditions should be observed: The maximum speed permitted in any line is 15 m/s. Suction line must be insulated and have a 2% slope towards the compressor and the horizontal pipe run.

  • Page 31: Refrigerant Charge

    Gas tightness testing and dehydration With the unit in operation, ensure that the values shown on the 50VZ/PZ units are shipped fully charged with refrigerant R-407C high and low pressure gauges are within the normal limits. It is ready for operation. If, when the unit is run, symptoms of loss...

  • Page 32: Description Of Unit Protection Devices

    Table 7 - Heat pump operation Remove the gas from the refrigerant circuit using recovery equipment to avoid harming the atmosphere. Electrically disconnect the compressor. Zone Air temperature Dry bulb Wet bulb Unbraze or unscrew the suction and discharge lines, Indoor taking care not to damage the rest of the components.

  • Page 33: Electric Resistance Heaters

    Electric resistance heaters Installation The standard installation of the water heating coil is made by positioning the connection manifolds on the same side as the This option/accessory consists of a frame with shielded electric motor of the evaporator unit. If necessary, it can be connected heaters and a control box, incorporated in the same frame, with to the opposite side.

  • Page 34: General Maintenance

    GENERAL MAINTENANCE SERVICE ATTENTION: Before starting any servicing or maintenance Indoor fan air adjustment operation on the unit, make sure that the power supply has been disconnected. A current discharge could cause personal injury. The drive is factory set in accordance with the tables on pages 18-25.

  • Page 35: Transformation To Split System (50Vz/Pz Units)

    Fig. 29 - To align fan and motor pulleys Transformation to split system (50VZ/PZ units) All units can be changed from a packaged to a split system, as described below: Disconnect the unit from the power supply. Remove the compressor access panel(s) and the indoor unit access panel(s).

  • Page 36: Troubleshooting Chart

    TROUBLESHOOTING CHART A list of possible faults, as well as the probable cause and suggested solutions is shown in Table 12. In the event of a unit malfunction it is recommended to disconnect the power supply and ascertain the cause. Table 12 - Troubleshooting chart Symptoms Cause...

This manual is also suitable for:

50pz38pz40pz38vz

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