McQuay R410A SINGLE COMPRESSOR SERIES Installation Manual

McQuay R410A SINGLE COMPRESSOR SERIES Installation Manual

Air cooled chiller r410a single compressor series
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AIR COOLED CHILLER
(R410A SINGLE COMPRESSOR SERIES)
© 2005 McQuay International
INSTALLATION MANUAL
IM-5ACC-0205SC
Group: Mini Chiller
Part Number: A08019024588
Date: February 2005

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Summary of Contents for McQuay R410A SINGLE COMPRESSOR SERIES

  • Page 1 INSTALLATION MANUAL IM-5ACC-0205SC Group: Mini Chiller Part Number: A08019024588 Date: February 2005 AIR COOLED CHILLER (R410A SINGLE COMPRESSOR SERIES) © 2005 McQuay International...
  • Page 2: Outline And Dimensions

    OUTLINE AND DIMENSIONS 5AC 020/025 CR 10,0 1181,6 10,0 460,0 85,0 128,5 128,5...
  • Page 3 ! Caution Sharp edges and coil surfaces are potential locations which may cause injury hazards. Avoid from being in contact with these places. Les bords coupants et les surfaces du refroidisseur tuulaire présentent ! Avertissement un risque de blessure. Mieux vaut éviter le contact avec ces endroits. ! Vorsicht Scharfe Kanten und Wärmetauscherflächen stellen eine Gefahrenquelle dar.
  • Page 4: Electrical Wiring Diagram

    ELECTRICAL WIRING DIAGRAM MODEL : 5AC 020/025 CR...
  • Page 5 ISOLATOR DIAGRAM AC TERMINAL BOX TB1 L/L1 N/L2 ISOLATOR FUSE Power supply 230V / 1Ph-N / 50Hz 5AC/AC020/025 CR...
  • Page 6 INSTALLATION MANUAL This manual provides the procedures of installation to ensure a safe and good standard of operation for the chiller. Special adjustments may be necessary to suit local requirements. Before using the chiller, please read this instruction manual carefully and keep it for future reference. AIR COOLED CHILLER MODEL HEAT PUMP...
  • Page 7 INDEX - Outline And Dimensions page i-ii - Recommended Fuse And Cable Sizes page 6 - Electrical Wiring Diagram page iii - Water Piping System Setup page 7 - Isolator Diagram page iv - Refrigerant Circuit page 7 - Transportation page 1 - Special Precautions When Dealing With - Installation Location...
  • Page 8: Installation Location

    INSTALLATION LOCATION • Installation work should be done by the authorized dealer or qualified contractor. Never install the unit yourself. • Make sure there is sufficient space for airflow around the unit. The discharged air should be directed outside using a duct should the unit be installed in a plant room.
  • Page 9: Unit Installation

    • Unit subjects to floor installation must be placed on a concrete slab. The slab must have thickness of 100mm and 50mm wider and longer than the footprint of the unit (Figure 4). Place the concrete slab a distant from building to prevent vibration and noise.
  • Page 10: Physical Data

    PHYSICAL DATA Table A-1 : R410A - Heatpump Model 5AC020CR 5AC025CR Nominal cooling capacity 4.98 6.15 Nominal heating capacity 6.30 7.320 Operating Weight 115.50 122.50 Refrigerant charge R410A 1.20 1.725 Compressor 1 Rotary comp Control system LCD Electronic Control Refrigerant - water heat exchanger Brazed Plate Heat Exchanger Water connections (BSP) inches...
  • Page 11: Water Piping And Fitting

    WATER PIPING AND FITTING • All water pipe must be adequately insulated to prevent capacity losses and condensation. • Install a 40 to 60-mesh strainer to ensure good water quality. • Water pipes recommended are black steel pipe and copper pipe. •...
  • Page 12 RECOMMENDED FUSE AND CABLE SIZES Cooling / Heat Pump Model 5AC020CR 5AC025CR 220 ~ 240V /1Ph /50Hz + N + ! Voltage Range ** Recommended Fuse * Power Supply Cable Size * Number of Conductor Interconnection Cable Size * IMPORTANT : * The figures shown in the table are for information purpose only. They should be checked and selected to comply with the local/national codes of regulations.
  • Page 13: Water Piping System Setup

    WATER PIPING SYSTEM SETUP • Fill up the water circuit after connecting all the pipes and equipment. Perform leak checks for all connections and joints. Do not start the unit when the system is leaking. • To optimize the capacity of the system, ensure that the system is free of air bubbles. The air trapped in the system would make the system unbalanced.
  • Page 14 CONTROL OPERATION GUIDE The unit is equipped with a microprocessor controller board. The microprocessor controller is provided to give temperature control for the system by accurately measuring and controlling the water entering and water leaving temperature. The tem- perature setting in the unit is preset in the factory. It is not recommended to change the setting unless necessary. A wired controller handset is connected to the microprocessor board.
  • Page 15: Servicing And Maintenance

    SERVICING AND MAINTENANCE • Servicing Servicing or maintenance of these units must be carried out by experienced personnel with specific training in refrigeration. Repeatedly check the safety devices and continuous cycling of control components. These items must be analyzed and corrected before being reset.
  • Page 16: Troubleshooting

    TROUBLESHOOTING When any malfunction is occurred, immediately switch off the power supply to the unit, and contact the local dealer, if necessary. Some simple troubleshooting tips are given below : SYMPTOMS POSSIBLE CAUSES REMEDIAL ACTION 1. Compressor does • No power supply. •...
  • Page 17: Fan Speed Controller (Optional)

    FAN SPEED CONTROLLER (OPTIONAL) Operation of the mini chillers without any fan speed control is limited to an ambient temperature of 17°C. With the fan speed control, the units are able to operate down to -5°C. The fan speed controller does not come as a standard item in the mini chiller units. It is field- installed.
  • Page 18 • In the event that there is any conflict in the interpretation of this manual and any translation of the same in any language, the English version of this manual shall prevail. • The manufacturer reserves the right to revise any of the specification and design contain herein at any time without prior notification.

This manual is also suitable for:

5ac 020 cr5ac 025 crM5ac 020 crM5ac 025 cr

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