McQuay MAC060D4 Installation, Operation & Maintenance Manual Download Page 1 | Manualshive

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Air Cooled Chiller

Models:

MAC060/090/120D4

Contents

INSTALLATION, OPERATION & MAINTENANCE MANUAL

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Summary of Contents for MAC060D4

Page 1: ...Air Cooled Chiller Models MAC060 090 120D4 Contents INSTALLATION OPERATION MAINTENANCE MANUAL...

Page 2: ...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 Main...

Page 3: ...h 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 Caution Wa...

Page 4: ...the new MAC D series is designed with the always in mind concept to satisfy customers high efficiency comfort safety intelligence requirements to maximum extent The unit can be flexibly coupled with m...

Page 5: ...MAC060D4 are having side discharge design while the larger capacity models MAC090 120D4 are having top discharge design Simple to Operate The machine is complete with intelligent microprocessor contro...

Page 6: ...it to indoor controller to greatly ease the work of status monitor and troubleshooting All Weather The cabinet is made of electro galvanized mild steel sheet coated with baked polyester power to ensu...

Page 7: ...o give optimum thermal insulation Refrigerant Circuit The refrigerant circuit is brazed and vacuumized in factory before accurately charged with R407C to ensure optimum operating requirement to ensure...

Page 8: ...ION WATER PIPE CONNECTION Rc 1 Rc 1 1 2 CONDENSER TYPE Cross Aluminum Finned Seamless Copper Tubes EVAPORATOR TYPE Stainless Steel Brazed Plate Heat Exchanger SOUND LEVEL dB A 62 66 66 NET WEIGHT kg 2...

Page 9: ...t LWT Leaving Water Temperature MAC060D4 10 0 15 0 20 0 25 0 30 0 15 20 25 30 35 40 45 48 Ambient Temperature Cooling Capacity kW LWT MAC090D4 20 0 25 0 30 0 35 0 40 0 45 0 15 20 25 30 35 40 45 48 Amb...

Page 10: ...WT MAC120D4 20 0 25 0 30 0 35 0 40 0 45 0 50 0 55 0 60 0 15 20 25 30 35 40 45 48 Ambient Temperature Cooling Capacity kW 15 12 9 7 5 LWT MAC060D4 3 50 4 50 5 50 6 50 7 50 8 50 15 20 25 30 35 40 45 48...

Page 11: ...at there are some little differences between the performance of actual manufactured unit and that obtained using these charts MAC090D4 7 00 8 00 9 00 10 00 11 00 12 00 13 00 14 00 15 20 25 30 35 40 45...

Page 12: ...2009McQuay 11 Outlines and Dimensions Model MAC060D4 UNIT mm Model A B C D E F G H I J MAC060D4 1212 502 1700 1135 1162 132 254 235 80 604 5 2 Rc1 4 10X20 E A D G F C B J H I...

Page 13: ...mm Model A B C D E F G H MAC090D4 900 990 180 215 285 271 Rc1 1 2 Rc1 1 2 MAC120D4 1200 1290 180 215 286 267 Rc1 1 2 Rc1 1 2 F E C Outlet G D Inlet H 4 14 20 Fixing Hole Zoom 265 1840 B 8 1575 B A 840...

Page 14: ...rainage valve and auto air vent valve etc Operation Limit Water Drainage Port DN25 4 10x20 Chilled Water Inlet N Chilled Water Outlet N Dirt Drainage Port R1 2 448 680 500 816 400 302 87 48 151 61 N M...

Page 15: ...f the unit Remove obstacles which blocking intake or discharge the air if exist 4 If good ventilation cannot be guaranteed when unit being installed indoors it is advisable to induce discharge air fro...

Page 16: ...ure to avoid lifting ropes contact with side heat exchanger panel and unit s top part After installation location is confirmed remove the package base by unfastening the bolts Mounting When mounting p...

Page 17: ...uld be installed at lowest points on chilled water piping system In order to achieve the unit long life operation it is recommended to give first priority to new type plastic water pipe such as PP R P...

Page 18: ...en 2 If the water volume V while the unit is running is less than Vmin it s recommended to install a water tank of Vmin V L or it will cause the unit frequent ON OFF 3 The Vmin in the table is calcula...

Page 19: ...Pump Performance Chart 0 5 10 15 20 25 30 35 0 1 2 3 4 5 6 7 8 9 10 Water Flowrate m3 h H m 0 50 100 150 200 250 1 36 1 9 2 44 2 6 2 98 3 07 3 47 3 58 3 91 4 1 4 61 5 12 5 63 6 08 6 51 7 17 Water Flo...

Page 20: ...ype 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 t...

Page 21: ...ected without tension to the cables and terminals All cables should not contact with refrigerating piping and moveable components such as compressor and fan motor etc Electrical Data Model MAC060D4 MA...

Page 22: ...ery dirty or oily for maintaining superior performance and sufficient capacity please ask specialized personnel to do regular cleaning of heat exchanger Maintenance For keeping consistent performance...

Page 23: ...mbient temp too high low 19 51 TH12 malfunction 8 29 super heat less than 2 protection 20 53 low pressure sensor malfunction 9 32 suction temperature too high 21 F6 communication failure Troubleshooti...

Page 24: ...high ER48 ER19 lack of water flow ER34 Reserved ER49 TH10 malfunction ER20 high pressure malfunction ER35 Reserved ER50 ER21 low pressure malfunction ER36 Reserved ER51 TH12 malfunction ER22 ER37 Rese...

Page 25: ...setting is correct according to the wiring diagram compressor overload Compressor running current too high overload protection works check if compressor resistance is normal check if current overload...

Page 26: ...oo low under cooling mode 3 discharge temperature too high for 3 times 4 fan overload for 3 times 5 high pressure malfunction for 3 times 6 ER21 LED low pressure malfunction 6 water differential gauge...

Page 27: ...15 ER43 LED TH4 failure 3 PCB failure change PCB 1 EWT sensor disconnect short circuit check TH6 resistance change 16 ER45 LED TH6 failure 2 PCB failure change PCB 1 LWT sensor disconnect short circui...

Page 28: ...MAC090 120D4 is two compressors paralleled 6 Difference Pressure Switch 3 Throttle Device 7 Accumulator 1 Compressor 4 Bphe LEGEND 7 1 5 Water Pump 2 Heat Exchanger Fan Refrigerant Fow Direction Chil...

Page 29: ...er circulating in the hydraulic system All the chilled water in the hydraulic system must be drained out completely during unit shutdown in winter to avoid water piping damage due to freeze 3 Make sur...

Page 30: ...ing 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 subj...

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