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MDV MDC-SS35/RN1L - User Manual

MDV MDC-SS35/RN1L
100 pages
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MCAC-ATSM-2014-05 Aqua Tempo Super Series air cooled scroll chiller unit (50Hz)
Content i
Content
1Nomenclature ................................................................. 2
2Product Lineup ............................................................... 2
3. External Appearance ..................................................... 3
4Features .......................................................................... 4
5Specifications ................................................................. 9
6Dimensions ................................................................... 17
7Refrigeration System Sketch Drawing ....................... 20
8Wiring Diagrams ........................................................... 22
9Electric Characteristics ............................................... 35
10Capacity Tables .......................................................... 36
11Exploded View ............................................................ 54
12Trouble Shooting ........................................................ 72
13Installation .................................................................. 84
14Commissioning ........................................................ 101
15Maintenance ............................................................. 102
16Control System ......................................................... 104
17. Optional Accessories ................................................ 163
Appendix .......................................................................... 163
Manufacture reserves the right to discontinue, or change at any time, specifications or designs without notices and without
incurring obligations.
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Summary

1. Nomenclature

2. Product Lineup

3. External Appearance

4. Features

4.1 New structure design

Describes the H-shape condenser and 360° air suction for enhanced heat exchange.

4.2 Modular design, flexible combination

Explains the unit's modularity for connecting up to 16 modules, offering flexibility.

4.3 Backup functions

Details the operational behavior when master or slave units fail, ensuring system continuity.

4.4 Alternative cycle duty operation

Ensures equal running time for all slave units, improving stability and lifespan.

4.5 Intelligent defrosting technology

Focuses on Midea Fast Defrosting for reduced water temperature fluctuation.

4.6 High efficiency heat exchange technology

Highlights the use of grooved copper tubes and hydrophilic aluminum foil for better efficiency.

4.7 EXV more precisely flow control

Discusses patented liquid distribution and 500-step EXV for accurate gas flow control.

4.8 Reliable protections

Lists various protection mechanisms ensuring safe chiller operation.

4.9 Easy transportation and installation

Covers compact structure, light weight, and simplified installation process.

4.10 Applicable temperature range

Details the ambient and water outlet temperature ranges for cooling and heating modes.

4.11 Double pipe&shell and tube heat exchanger

Describes the SS series heat exchanger with a focus on helical baffle design.

4.12 Plate heat exchanger

Explains the SP series plate heat exchanger for reduced energy consumption.

4.13 Built-in hydraulic module

Describes integrated modules like expansion tank and pump, saving space and cost.

5. Specifications

6. Dimensions

7. Refrigeration System Sketch Drawing

7.1 35 kW module refrigeration system sketch drawing

Depicts the refrigeration circuit for 35kW modules, including compressor, condenser, and evaporator.

7.2 65;80 kW module refrigeration system sketch drawing

Shows the refrigeration circuit for 65/80kW modules, featuring key components like compressor and condenser.

7.3 130 kW module refrigeration system sketch drawing

Illustrates the refrigeration circuit for 130kW modules with two compressors and shell-tube evaporator.

8. Wiring Diagrams

8.1 Wiring Diagrams

Offers detailed electrical wiring diagrams for SS series chiller units, showing component connections.

8.2 Networking Communication Schematic

Illustrates the communication schematic for main and auxiliary units in networking configuration.

9. Electric Characteristics

10. Capacity Tables

10.1 Cooling

Presents cooling capacity and power data across various ambient and water outlet temperatures.

10.2 Heating

Provides heating capacity and power data across different ambient and water outlet temperatures.

11. Exploded View

12. Trouble Shooting

12.1 Failure &protection codes

Lists error and protection codes with brief descriptions for troubleshooting.

12.2 Troubles and Solutions

Details common troubles with their possible reasons and suggested solutions.

12.3 Typical malfunction solutions

Provides flowcharts for diagnosing and resolving common system malfunctions.

13. Installation

13.1 Unit Installation

Covers transportation, installation space, and foundation requirements for the unit.

13.2 Water System Installation

Details connection requirements, water quality, performance factors, and pipeline installation.

13.3 Wiring Installation

Explains precautions, power supply specifications, and wiring connection steps for safe installation.

14. Commissioning

1. Preparation

Outlines necessary steps before starting the unit, including system flushing and pre-heating.

2. Test run

Describes procedures for initial startup, trial run, and final checks for normal operation.

15. Maintenance

Maintenance for main components

Covers essential checks for discharge/suction pressure, electrical connections, and component reliability.

Removing scale

Details procedures for cleaning scale from the water-side heat exchanger using appropriate agents.

Winter shutdown

Provides instructions for preparing the unit for winter shutdown, including cleaning and draining.

Replacing parts

Emphasizes using only company-provided parts for replacements.

First startup after shutdown

Lists preparations for restarting the unit after a long period of inactivity.

Refrigeration system

Guides on checking refrigerant levels, leakage, and injection procedures.

16. Control System

16.1 PCB Outline and Description

Details the physical layout and component descriptions of the control system PCB.

16.2 Wired Controller KJRM-120 D;BMK-E(Standard)

Explains the operation and functions of the standard wired controller model.

MODBUS gateway

Describes the Modbus gateway for intelligent network control and unit connectivity.

16.3 Wired controller KJR-120 A;MBTE(Optional)

Details the operation and functions of the optional wired controller model.

Appendix

3.Temperature-Resistance characteristic sheet for discharge temperature sensor of digital compressor.

Offers temperature-resistance data specifically for the digital compressor discharge sensor.

MDV MDC-SS35/RN1L Specifications

General IconGeneral
Cooling Capacity35 kW
RefrigerantR410A
Power Supply380-415V/3Ph/50Hz
Noise Level65 dB(A)
Operating Ambient Temperature5°C to 43°C