Инструкция на Чиллеры с воздушным конденсатором.

Текст инструкции

1. Стр. 1 Product Manual

   511 B – 08/10 A Date: October 2008 Supersedes: None Inverter Air cooled screw chillers McEnergy Inverter SSE (Standard Seasonal Efficiency) – XSE (High Seasonal Efficiency) 094.2÷147.2 Cooling capacity from 329 to 515 kW Refrigerant: R-134a McQuay is participating in the Eurovent Certification…

2. Стр. 2 Features and benefits

   High part load efficiency McEnergy Invert is the result of careful design, aimed to optimizing the seasonal energy efficiency of chillers, with the objective of bringing down operating costs and improving profitability, effectiveness and economical management. Per European Seasonal Energy Efficiency…

3. Стр. 3 Code requirements – Safety and observant of laws/directives

   All water cooled units are designed and manufactured in accordance with applicable selections of the following which are equivalent to American Air-conditioning industry applicable codes: Rating of chillers Construction of pressure vessel Machinery Directive Low Voltage Electromagnetic Compatibility…

4. Стр. 4 General characteristics

   Cabinet and structure The cabinet is made of galvanized steel sheet and painted to provide a high resistance to corrosion. The base frame has rings for lifting the unit with ropes for an easy installation. The weight is uniformly distributed along the profiles of the base and this facilitates the…

5. Стр. 5

   • • Electronic expansion valve Suction line shut off valve Discharge line shut off valve Electrical control panel Power and control are located in two sections of the main panel that is manufactured to ensure protection against all weather conditions. The power panel is fitted with an interlocked…

6. Стр. 6

   High oil pressure drop. • Low oil pressure. System security • Phase monitor. • Freeze protection. Regulation type Proportional + integral + derivative regulation on the leaving water evaporator output probe. Condensation The condensation can be carried out according to temperature or pressure or…

7. Стр. 7 Options (on request)

   Total heat recovery – Produced with shell and tube heat exchangers to produce hot water up to +55° C. The heat exchangers are mounted on the refrigerant circuits parallel to the condenser coils to remove all the condensation heat. Partial heat recovery – Produced with plate to plate heat exchangers…

8. Стр. 8 Supervising systems (on request)

   PlantVisorTM: Solution for tele-maintenance and supervisory MicroTech II C Plus can be monitored locally or via modem or GSM by PlantVisor TM supervision program. PlantVisorTM is compatible with all Windows based systems. It allows the followings functions: • Unit status monitoring • Circuits status…

9. Стр. 9 Nomenclature

   McEnergy Inverter XSE 094 .2 ST 134 McEnergy Inverter Air cooled screw chiller SSE XSE Standard Seasonal Efficiency High Seasonal Efficiency 094.2 ÷ 147.2 Unit size 2 N° of compressors ST LN XN Standard Noise version Low Noise version Extra Low Noise version 134 Refrigerant R 134A 808 B – 07/11 A…

10. Стр. 10 Specifications

    TECHNICAL SPECIFICATIONS Capacity Capacity control Unit power input EER ESEER Cooling Type Minimum capacity Cooling Casing Colour Material Dimensions Unit Weight ST Weight LN Water heat exchanger Air heat exchanger Fan Sound level (ST) Sound level (LN) Refrigerant circuit Piping connections Safety…

11. Стр. 11 Capacity control

    Unit power input EER ESEER Casing Colour Material Dimensions Unit Weight ST Weight LN Water heat exchanger Air heat exchanger Fan Sound level (ST) Sound level (LN) Refrigerant circuit Piping connections Safety devices Safety devices Safety devices Safety devices Safety devices Safety devices Safety…

12. Стр. 12 ELECTRICAL SPECIFICATIONS

    Power Supply Version SSE Phase Frequency Voltage Minimum Maximum Maximum starting current Nominal running current cooling Maximum running current Maximum current for wires sizing Min displacement power factor at nominal conditions Nominal running current in cooling Phase Voltage Minimum Voltage…

13. Стр. 13 Capacity control

    Unit power input EER ESEER Casing Colour Material Dimensions Unit Weight ST Weight LN Weight XN Water heat exchanger Air heat exchanger Fan Sound level (ST) Sound level (LN) Sound level (XN) Refrigerant circuit Piping connections Safety devices Safety devices Safety devices Safety devices Safety…

14. Стр. 14 Capacity control

    Unit power input EER ESEER Casing Colour Material Dimensions Unit Weight ST Weight LN Weight XN Water heat exchanger Air heat exchanger Fan Sound level (ST) Sound level (LN) Sound level (XN) Refrigerant circuit Piping connections Safety devices Safety devices Safety devices Safety devices Safety…

15. Стр. 15 ELECTRICAL SPECIFICATIONS

    Power Supply Phase Frequency Voltage Minimum Maximum Maximum starting current Nominal running current cooling Maximum running current Maximum current for wires sizing Nominal running current in cooling Phase Voltage Minimum Voltage Tolerance Maximum Maximum running current Starting method Voltage…

16. Стр. 16 Sound pressure level

17. Стр. 17 Sound Pressure and Sound Power attenuation for different compressor

    load McEnergy Inverter SSE – ST / LN XSE – ST / LN / XN 0 A – Version ST B – Version LN C – Version XN -1 -2 A B dB attenuation -3 -4 -5 -6 -7 -8 -9 C -10 -11 0% 5% 10% 15% 20% 25% 30% 35% 40% 45% 50% 55% 60% 65% 70% 75% 80% 85% 90% 95% 100% Compressor Load (%) Sound pressure correction factors for…

18. Стр. 18 Operating limits

    McEnergy Inverter SSE – XSE Amb. Temp (°C) 30 25 OPERATION WITH GLYCOL FAN SPEED REGULATION ONLY 0 -5 -10 -15 -10 -9 -8 -7 -6 -5 -4 -3 -2 -1 ELWT (°C) Table 1 – Operating limits °C °C Max evaporator water ∆T Min evaporator water ∆T 8 4 Table 2 – Evaporator fouling factors Fouling factors m2°C / kW…

19. Стр. 19 Table 4 – Ethylene glycol and low ambient temperature correction factors

    Air ambient temperature °C % of ethylene glycol by weight Cooling capacity correction factor Power input correction factor Flow rate correction factor Water pressure drops correction factor -3 -8 -15 -23 -35 10 0,991 0,996 1,013 1,070 20 0,982 0,992 1,040 1,129 30 0,972 0,986 1,074 1,181 40 0,961…

20. Стр. 20 Standard ratings

21. Стр. 34 Evaporator water pressure drop

22. Стр. 35 Hydronic Kit (Option on request)

    McEnergy Inverter SSE – XSE Hydronic Kit (one water circulation pump – low lift) 212.5 200.0 A – Size 094.2 B – Size 103.2 – 112.2 C – Size 122.2 – 130.2 D – Size 139.2 – 147.2 Net available static pressure (kPa) 187.5 175.0 162.5 150.0 137.5 125.0 112.5 100.0 87.5 75.0 62.5 D 50.0 B 37.5 25.0 C A…

23. Стр. 36 Hydronic Kit (two water circulation pump – low lift)

    225.0 212.5 A – Size 094.2 B – Size 103.2 – 112.2 C – Size 122.2 – 130.2 D – Size 139.2 – 147.2 Net available static pressure (kPa) 200.0 187.5 175.0 162.5 150.0 137.5 125.0 112.5 100.0 87.5 75.0 D 62.5 50.0 37.5 C 25.0 A 12.5 B 0.0 29.0 30.0 Water Flow (l/s) Hydronic Kit (two water circulation pump…

24. Стр. 37 Hydronic Kit - Technical Specification (one and two water circulation pump)

25. Стр. 38 Total heat recovery (Option on request)

26. Стр. 42 Total heat recovery pressure (Option on request)

    Pressure drop McEnergy Inverter SSE – XSE Ref A B C D Size 094.2 Circ #1 / #2 102.2 Circ #1 102.2 Circ #2 113.2 Circ #1 / #2 122.2 Circ #1 122.2 Circ #2 131.2 Circ #1 / #2 139.2 Circ #1 139.2 Circ #2 147.2 Circ #1 / #2 808 B – 07/11 A – pag. 42/52

27. Стр. 43 Partial heat recovery (Option on request)

    Ratings McEnergy Inverter SSE – XSE HEAT RECOVERY LEAVING WATER TEMPERATURE (°C) Unit size 102.2 113.2 122.2 131.2 139.2 147.2 50 (∆ ∆T=5°C) 55 (∆ ∆T=5°C) Cooling capacity (kW) Cooling capacity (kW) Cooling capacity (kW) Evaporator leaving water temp. 7°C - ∆ T 5°C ambient temperature 35°C 94.2 45…

28. Стр. 44 808 B – 07/11 A – pag. 44/52

    A 2224 2224 2224 2224 2224 2224 2224 Size 094.2 102.2 113.2 122.2 131.2 139.2 147.2 Legend 1 – Condenser Coil 2 – Water heat exchanger (evaporator) 3 – Evaporator water inlet 4 – Evaporator water outlet 5 – Victaulic connection for 168.3 O.D. tube 6 – Operating and control panel 7 – 330 x 180 mm…

29. Стр. 45 Installation notes

    Warning Installation and maintenance are to be performed only by qualified personnel who are familiar with local codes and regulations, and who are experienced with this type of equipment. Must be avoided the unit installation in places that could be considered dangerous for all the maintenance…

30. Стр. 46 Acoustic protection

    When noise level must meet special requirements, it is necessary to pay the maximum attention to ensure the perfect insulation of the unit from the support base by applying appropriate vibration-dampening devices on the unit, on the water pipes and on the electrical connections. Storing The…

31. Стр. 47 Specification

    Technical Specification for Air Cooled Screw Chiller GENERAL The air cooled screw chiller will be designed and manufactured in accordance with following European directives that are equivalent to American Air-Conditioning Industry codes: Rating of chillers Construction of pressure vessel Electrical…

32. Стр. 48 DIMENSIONS

    Unit dimensions shall not exceed following indications: unit length mm, unit width mm, unit height mm. CHILLER COMPONENTS Compressors Semi-hermetic, single-screw type with one main helical rotor meshing with gaterotor. The gaterotor will be constructed of a carbon impregnated engineered composite…

33. Стр. 49 Unit-Mounted Variable Frequency Driver (VFD) and Electrical Requirement

    All interconnecting wiring between the VFD and the chiller shall be factory-installed. Customer electrical connection for compressor motor power shall be limited to main power leads to the single point power connection located into electrical panel. The VFD shall be air cooled type. Water cooled…

34. Стр. 50 Condensation control

    The units will be provided with an automatic control for condensing pressure which ensures the working at low external temperatures down to -10 °C, thanks the Inverter of the condenser fans, to maintain condensing pressure. Automatic compressor unloading when abnormal high condensing pressure is…

35. Стр. 51 - scheduling via internal time clock to allow programming of a yearly start-stop schedule

    accommodating weekends and holidays. Optional High Level Communications Interface The controller as a minimum shall be capable of providing the data shown in the above list and document entitled McQuaycomms, using the following options: Option A Option C Option E RS485 Serial card Option B RS232…

36. Стр. 52

    “The present publication is drawn up by of information only and does not constitute an offer binding upon McQuay. McQuay has compiled the content of this publication to the best of its knowledge. No express or implied warranty is given for the completeness, accuracy, reliability or fitness for…

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