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Summary of Contents for McQuay MAC060D4
- Page 1 INSTALLATION, OPERATION & MAINTENANCE MANUAL Air Cooled Chiller Models: MAC060/090/120D4 Contents...
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Page 2: Table Of Contents
MAC0906-V2 Part No.: M08019320011 1. Introduction Introduction……………………………………………………………………………………………………3 Nomenclature ………………………………………………………………………………………………3 2. Features General Specification………………………………………………………………………………………6 Parameter……………………………………………………………………………………………………7 Performance Chart……………………………………………………………………………………………8 Outlines And Dimensions …………………………………………………………………………………11 Operation Limit………………………………………………………………………………………………13 3. Installation Unit Installation ………………………………………………………………………………………14 Water System Installation ……………………………………………………………………………16 Power Connection …………………………………………………………………………………………20 4. Servicing and Maintenance Servicing and Maintenance ………………………………………………………………………………21 Troubleshooting and Solution ……………………………………………………………………………22 Schematic Diagram ………………………………………………………………………………………27 5. - Page 3 Installation and maintenance are to be performed only by qualified personnel who are familiar with local codes and regulations, and experienced with this type of equipment. McQuay is not responsible for any unit damage, personal injury or death due to not complying with these requirements.
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Page 4: Introduction
1 Introduction Introduction For years, McQuay international has earned a reputation for providing the industry with various highest quality and most technologically advanced air conditioning systems. Now Shenzhen McQuay is proud to introduce the new generation air-cooled chiller-MAC D series. Inherited from the advantage of the earlier product experiences and introduced the most up-to-date technology, the new MAC D series is designed with the always-in-mind concept - to satisfy customers’... -
Page 5: Features
Detailed engineering work coupled with extensive market research has resulted the new MAC model come in new mono-block design to yield a compact and robust structure while maintaining the slim outlook. The smaller capacity models MAC060D4 are having side discharge design, while the larger capacity models MAC090/120D4 are having top discharge design. - Page 6 Safety Control Protection devices such as dual pressure protection and overload protection etc. is provided to ensure unit operating within safety condition range. The microprocessor-based controller automatically directs system on or off by processing the water temperature feedback. If the water temperature falls to unacceptable low point, the controller automatically shut off the system to prevent hydraulic system internal freeze for unit safety operation.
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Page 7: General Specification
General Specification Compressor McQuay Mini Chillers are equipped with highly efficient, reliable and silence scroll compressors for MAC060/090/120D4 Air-Cooler Condenser The air-cooled condenser coil consists of staggered rows of 3/8’’ OD seamless copper tube, mechanically expanded into die formed aluminum fins to ensure optimum heat exchange capability. -
Page 8: Parameter
Parameter MODEL MAC060D4 MAC090D4 MAC120D4 NOMINAL COOLING CAPACITY 17500 30000 33500 POWER SUPPLY 208-230V/3～/60Hz REFRIGERANT TYPE R407C RATED COOLING POWER INPUT 6000 10100 10600 RATED COOLING CURRENT 18.8 34.7 35.7 TYPE/DRIVE Propeller/Direct FAN MOTOR RATED POWER INPUT 1000 1000 RATED CURRENT... -
Page 9: Performance Chart
Performance Chart Cooling Capacity Performance Chart MAC060D4 30.0 25.0 20.0 15℃ 12℃ 9℃ 15.0 7℃ 5℃ 10.0 15℃ 20℃ 25℃ 30℃ 35℃ 40℃ 45℃ 48℃ Ambient Temperature(℃) MAC090D4 45.0 40.0 35.0 30.0 15℃ 12℃ 9℃ 25.0 7℃ 5℃ 20.0 15℃... - Page 10 35.0 12℃ 30.0 9℃ 7℃ 25.0 5℃ 20.0 15℃ 20℃ 25℃ 30℃ 35℃ 40℃ 45℃ 48℃ Ambient Temperature(℃) Cooling Power Input Char MAC060D4 8.50 15℃ 12℃ 7.50 9℃ 7℃ 5℃ 6.50 15℃ 5.50 12℃ 9℃ 7℃ 4.50 5℃ 3.50 15℃...
- Page 11 MAC090D4 15℃ 14.00 12℃ 9℃ 13.00 7℃ 12.00 5℃ 11.00 10.00 9.00 8.00 7.00 15℃ 20℃ 25℃ 30℃ 35℃ 40℃ 45℃ 48℃ Ambient Temperature(℃) MAC120D4 15℃ 15.00 12℃ 14.00 9℃ 7℃ 13.00 5℃ 12.00 11.00 10.00 9.00 8.00 7.00 15℃ 20℃...
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Page 12: Outlines And Dimensions
Outlines and Dimensions Model: MAC060D4 4-10X20 2-Rc1 UNIT: mm Model MAC060D4 1212 1700 1135 1162 604.5 ©2009McQuay... - Page 13 Model: MAC090D4 Fixing Hole 4-14 × 20 4-14 × 20 Fixing Hole Zoom Outlet G Inlet H UNIT: mm Model MAC090D4 Rc1-1/2 Rc1-1/2 MAC120D4 1200 1290 Rc1-1/2 Rc1-1/2 ©2009McQuay...
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Page 14: Operation Limit
Accessory Hydraulic Kit Accessory hydraulic kit consists of 40L capacity stainless steel water storage tank, 8L volume water expansion chamber, safety valve, dirt drainage valve, and auto air vent valve etc. MAC-S1U/M MAC-S4U/M 4-10x20 Chilled Water Inlet N Chilled Water Outlet N Dirt Drainage Port R1/2 151 61 Water Drainage Port DN25... -
Page 15: Installation
3 Installation Unit Installation The chiller must be installed by qualified company or personnel, which is authorized by McQuay, and the installation must satisfy all the following requirements. Location In order to achieve maximum capacity, the location selection should fulfill the following requirements: The location must be well ventilated, so that air can be drawn in and discharge out efficiently. - Page 16 7) It is advised to have sufficient clearance around the unit for proper condenser air flow and to facilitate access for maintenance.( see clearance shown in figure below) Back Side >450mm >450mm Front Side guiding device >45 ° >450mm+h1 >450mm+h2 >1000mm >450mm+h3 >100mm+h...
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Page 17: Water System Installation
Water System Installation Chilled water piping must be insulated and waterproof to avoid performance loss and moisture condensing on it. To guarantee the chilled water quality, the water strainer shipped with unit must be installed on the chilled water inlet pipe. Inlet/Outlet Side Panel When performing water pipe connection, use gripping pliers to fix the... - Page 18 Vmin is referred to the below table： Item Model Setting EWT(℃) Vmin(l) MAC060D4 MAC090D4 MAC120D4 Notice： The total water volume of the entire hydraulic system includes the water in main pipe, water tank and terminal equipment, in which the 2-way valve is open.
- Page 19 Unit Water Pressure Drop 1.36 2.44 2.98 3.07 3.47 3.58 3.91 4.61 5.12 5.63 6.08 6.51 7.17 Water Flowrate(m Water Pump Performance Chart Water Flowrate(m ©2009McQuay...
- Page 20 Auxiliary heater in the diagram below is available for option, please choose either type of auxiliary electric heater or auxiliary gas heater. If you have the demand, please contact with local McQuay sales representation, and install it according to below diagram, if you have no need of this option, the components in dotted line box can be omitted.
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Page 21: Power Connection
Carry out the electrical connection according to the circuit diagram in unit electrical box so that achieved their automatic on/off governed by the unit controller. In addition, contact with local McQuay service representative for performing trail startup. ©2009McQuay... -
Page 22: Servicing And Maintenance
There is no need to conduct any maintenance to refrigerant piping if the unit is under normal running. McQuay designers have given full consideration to make servicing convenient during unit development. After opening service panel, both servicing and maintenance can be easily carried out. -
Page 23: Troubleshooting And Solution
Troubleshooting and Solutions Troubleshooting Displayed on controller and Descriptions Item Code Description Item Code Description compressor overload discharge temperature too high fan overload TH1 malfunction water pump malfunction TH2 malfunction lack of water flow TH3 malfunction high pressure malfunction TH4 malfunction low pressure malfunction TH6 malfunction TH7 malfunction... - Page 24 Error code and Description Error Code Description Error Code Description Error Code Description ECXX ------- ER30 ------- ER45 TH6 malfunction compressor overload ER31 ------- ER46 TH7 malfunction ER16 suction temperature fan overload ER32 ER47 TH8 malfunction too high discharge ———— ER18 pump overload ER33...
- Page 25 Reasons for Malfunction Generating and Solutions Item Error Code Description Reasons Solutions 1. communication cable is A/B connected opposite check communication cable connection 2. communication cable is loose re-do the wiring to avoid power cable and communication cable close; 3. communication cable and power cable is crossed use shield twisted cable communication 4.
- Page 26 Item Error Code Description Reasons Solutions 1. motor is damaged(cooling) Change motor; 2. air is short circuit (cooling) improve condenser air circulation; 3. heat exchanger is dirty (cooling) clean condenser 4. refrigerant side filter is dirty check and replace ER20 high pressure (LED)
- Page 27 Item Error Code Description Reasons Solutions 1. motor failure(cooling) Change fan motor; 2. return air short circuit (cooling) Improve terminal equipment air circulation; discharge ER33 Clean condenser 3. condenser is dirty (cooling) temperature (LED) 4. EWT is too high re-set EWT by service personal too high 5.
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Page 28: Schematic Diagram
Schematic Diagram MAC060D4 (MAC090/120D4 is two compressors paralleled) Chilled Water In Chilled Water Out LEGEND Refrigerant Fow Direction 2.Heat Exchanger Fan 3.Throttle Device 1.Compressor 5.Water Pump 6.Difference Pressure Switch 4.Bphe 7.Accumulator ©2009McQuay... -
Page 29: Notice
6) Only clean water is suitable to fill in system, in addition, install the high efficiency water strainer, which is provided by McQuay, on the upstream pipe to unit water inlet 7) Special attention to winter antifreeze During long period shutdown in winter, the water in system must be completely drained out. Please refer to the diagram below and the labels stuck on unit. - Page 30 While utmost care is taken in ensuring that all details in the publication are correct at the time of going to press, we are constantly striving for improvement and therefore reserve the right to alter model specifications and equipment without notice. Details of specifications and equipment are also subject to change to suit local conditions and requirements and not all models are available in every market.
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