Инструкция на Чиллеры Trane RTAA/RTAB с воздушным охлаждением и винтовыми компрессорами

Текст инструкции

1. Стр. 1 This manual should be used jointly

   with the manual of the UCM-CLD reference L80 IM 025 E C20 IM 004 E RTAA 213 - 214 - 215 - 216 - 217 - 322 - 324 - 328 - 430 - 432 - 434 RTAB 108 - 109 - 110 - 207 - 209 - 210 - 211 - 212 - 213 - 214 - 215 - 216 - 217 - 220 324 - 328 - 430 - 432 - 434 RTAA/RTAB Air-Cooled Helical Rotary Liquid…

2. Стр. 2 Foreword

   These Installation Operation and Maintenance instructions are given as a guide to good practice in the installation, putting into service, operation and periodic maintenance by the user, of the Trane RTAA/RTAB, screw compressor liquid chiller. They do not give the full service procedures necessary…

3. Стр. 4 General information

   Unit inspection Notify the carrier’s terminal of the damage immediate, joint inspection of the damage with the carrier and the consignee. Notify the Trane sales representative and arrange for repair. Do not repair the unit, however, until damage is inspected by the carrier’s representative. When the…

4. Стр. 5 Figure 2 - Starter and control panels

   Figure 3 - Starter and control panels 5

5. Стр. 6 Table 1A : General data on units R22 (standard units)

6. Стр. 7 Model RTAB

7. Стр. 8 Warnings and cautions

   The RTAA/RTAB series features Trane’s exclusive Adaptive Control logic, which monitors the control variables that govern the operation of the chiller unit. Adaptive Control logic can correct these variables, when necessary, to optimize operational effiencies, avoid chiller shutdown, and keep…

8. Стр. 9 Figure 4 - Nameplate

   Installation mechanical Foundation Provide rigid, non-warping mounting pads or a concrete foundation of sufficient strength and mass to support the chiller operating weight (i.e., including completed piping, and full operating charges of refrigerant, oil and water). Refer to the submittals for unit…

9. Стр. 10 Figure 5 - Multiple-chiller layouts

   Figure 5 shows two possible configurations for a multiplechiller layouts. Positioning the chillers as shown in arrangement A provides good air movement, Arrangement B should be avoided (inhibits air flow between the chillers). Arrangement A : ▲ _ _ _ _ ▲ X ▲ ▲ ▲ ▲ ▲ 1,8 m - 1,8 m (clearance between…

10. Стр. 11 Figure 6A - RTAA rigging and lifting

11. Стр. 12 Lifting procedure

    e. Before tightening the mounting bolts, level the unit using the unit base rail as a reference. The unit must be level within 1/4" (6 mm)over the entire length. Use the leveling bolts and/or additional shims or grout to level the unit. Caution : To prevent damage do not use a forklift to lift the…

12. Стр. 13 Figure 7 - Suggested piping for typical RTAA/RTAB evaporator

    Relief valve Vent Valved pressure gauge Vibration eliminator Thermometer* Water strainer Gate valve Drain Vibration eliminator Flow switch** * = User option = Chilled water flow Thermometer Gate valve Balancing valve Leaving chilled water piping - Air vents (to bleed air from system). - Water…

13. Стр. 14 Specific connection and schematic wiring diagrams are

    shipped with the unit. Some piping and control schemes, particularly those using a single water pump for both chilled and hot water, must be analyzed to determine how and/or if a flow sensing device will provide desired operation. Follow the manufacturer’s recommendations for selection and…

14. Стр. 15 Water treatment

    Note : Use of glycol type antifreeze reduces the cooling capacity of the unit and must be considered in the design of the system specifications. Using untreated or improperly treated water in these units may result in inefficient operation and possible tube damage. Consult a qualified water…

15. Стр. 16 Operation

    Operating principles-mechanical Refrigeration (cooling) cycle General This section describes the mechanical operating principles of Screw compressor air-cooled chillers equipped with microcomputer-based control systems. - Unit Control Module (UCM-CLD) - Unit-mounted panel - Helical-rotary compressor…

16. Стр. 17 Figure 10B - Refrigeration system for CHHB compressors

    1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. Compressor Discharge line Safety valve HP pressure switch Discharge stop valve Oil separator Oil separator vent Condensing coil Condenser saturated temperature sensor Sub-cooler Liquid line Liquid stop valve 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25.…

17. Стр. 18 Cycle description

    There is no physical contact between the rotors and compressor housing. The rotor contact each other at the point where the driving action between the male and female rotors occurs. Oil is injected along the top of the compressor rotor section, coating both rotors and the compressor housing…

18. Стр. 19 Figure 11B - Typical CHHB compressor

    Oil system operation Compressor bearing oil supply Oil is injected into the bearing housings located at each end of both the male and fermale rotors. Each bearing housing is vented to compressor suction, so that oil leaving the bearings returns through the compressor rotors to the oil separator.…

19. Стр. 20 Remote clear language display

    Slide valve movement Movement of the slide valve piston determines slide valve position which, in turn, regulates compressor capacity. Oil flow into and out of the cylinder governs piston movement and is controlled by the normally-closed, load and unload solenoid valves. The solenoid valves receive…

20. Стр. 21 Figure 13 : Remote CLD Panel

    Remote CLD Panel Wiring The Remote CLD requires a 24 V power source and a shielded, twisted-pair wire between the panel and the local CLD. Note : A field supplied 24V, 40VA separation transformer with electrostatic screen must be used as a power supply for the Remote CLD. If the Remote CLD share the…

21. Стр. 22 Pre-start procedures

    General When installation is complete, but prior to putting the unit into service, the following pre-start procedures must be reviewed and verified correct : 1) Inspect all wiring connections to be sure they are clean and tight. 11) With chilled water circulating through the system, adjust water…

22. Стр. 23 - Measure the system superheat. Refer to «System superheat», below

    - Measure the system subcooling. Refer to «System subcooling», below. - A shortage of refrigerant is indicated if operating pressures are low and subcooling is also low. If the operating pressures, sight glass, superheat and subcooling rea dings indicate a refrigerant shortage, gas charge…

23. Стр. 24 Unit shutdown procedures

    Caution : The compressor sump heaters must be energized for a minimum of 24 hours prior to unit operation, to prevent compressor damage caused by liquid refrigerant in the compressor at start-up. Temperatures shutdown and restart To shut the unit down for a short time, use the following procedure…

24. Стр. 25 Maintenance

    - Have a qualified service technician check the setting and function of each control. Inspect the condition of compressor and control contactors and replace as required. Periodic maintenance General Perform all maintenance procedures and inspections at the recommended intervals. This will prolong…

25. Стр. 26 With this information, water treatment firms will be able to

    recommend a suitable chemical for use in this system. A typical configuration for chemical cleaning is shown in figure 14. The supplier of the cleaning chemicals must provide or approve : Service pumpdown The UCM-CLD provides a one-time “Service Pumpdown” mode with which the service engineer can…

26. Стр. 27 CHHB Compressor oil filter replacement

    CHHN Compressor oil filter change Note : Routine changing of the oil or the oil filter is not recommended. The oil filter is oversized for this application and should not require replacement. Note : Routine changing of the oil or the oil filter is not recommended. The oil filter is oversized for…

27. Стр. 28 10. Install a new copper gasket under the bolt head that

    had one at time of removal. Replace all other bolts and tighten to 20 m.kg. 11. Energize the three solenoid valves on the compressor by jumpering the proper terminals at the UCM. 12. Evacuate to 400 microns from the three ports in Step 2. 13. De-energize the three solenoid valves in Step 11. 14.…

28. Стр. 29 Figure 16 - Oil pressure drop

    35 & 40 Ton compressor oil filter replacement chart 29

29. Стр. 30 Start log sheet (compressors A and B)

    Job Name Elevation Above Job Location Sea Level Unit Model No. m S.O. No. Unit Serial No. Nameplate Volt Comp Model No. A Serial No. Comp Model No. B Serial No. Ship Date Nameplate RLA Nameplate RLA Cond Fan Motor RLA Evap H20 Heat Tape Volt Pres. Drop Design Actual kPa l/s kPa l/s Fifteen Minute…

30. Стр. 31 Start log sheet (compressors C and D)

    Job Name Elevation Above Job Location Sea Level Unit Model No. m S.O. No. Unit Serial No. Nameplate Volt Comp Model No. C Serial No. Comp Model No. D Serial No. Ship Date Nameplate RLA Nameplate RLA Cond Fan Motor RLA Evap H20 Heat Tape Volt Pres. Drop Design Actual kPa l/s kPa l/s Fifteen Minute…

31. Стр. 32 Safety recommendations

    To avoid accidents and damage, the following recommendations should be observed during maintenance and service visits : 1. The maximum allowable pressures for system leak testing on low and high pressure side are given in the chapter "Installation". Always provide a pressure regulator. 2. Disconnect…

Схемы, таблицы и рисунки — в просмотре документа выше. Клик по номеру страницы открывает её в просмотре.