Daikin EWADC19T-SSC3 Bedienungsanleitung

Daikin Klimaanlage EWADC19T-SSC3

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Air cooled chiller with screw compressor

MICROTECH CONTROLLER

Original Instructions

Rev.

Date

04/2021

Supersedes

D EOMAC00A04- –14_01EN

CONTROL PANEL OPERATING MANUAL

D EOMAC00A04- 2–14_0 EN

D EOMAC00A04-14_02 - 2/–EN 62

Contents

1 Introduction .................................................................................................................................................................... 5

2 Controller Features 6 ........................................................................................................................................................

3 General Description 7 .......................................................................................................................................................

3.1 General Description ................................................................................................................................................... 7

3.2 Control Panel Layout 7 .................................................................................................................................................

3.3 Hardware Structure .................................................................................................................................................... 7

3.4 System Architecture ................................................................................................................................................... 8

3.4.1 Control network details ......................................................................................................................................... 9

4 Sequence of Operation ............................................................................................................................................... 10

5 Controller Operation .................................................................................................................................................... 13

5.1 MicroTech Inputs/Outputs ........................................................................................................................................ 13

5.1.1 Analog Inputs ..................................................................................................................................................... 13

5.1.2 Analog Outputs ................................................................................................................................................... 13

5.1.3 Digital Inputs ....................................................................................................................................................... 13

5.1.4 Digital Outputs .................................................................................................................................................... 13

5.2 Extension I/O Compressor #1 to #3 ......................................................................................................................... 14

5.2.1 Analog Inputs ..................................................................................................................................................... 14

5.2.2 Analog Outputs ................................................................................................................................................... 14

5.2.3 Digital Inputs ....................................................................................................................................................... 14

5.2.4 Digital Outputs .................................................................................................................................................... 14

5.3 I/O EXV Circuit #1 to #3 ........................................................................................................................................... 14

5.3.1 Analog Inputs ..................................................................................................................................................... 14

5.3.2 Analog Outputs ................................................................................................................................................... 14

5.3.3 Digital Inputs ....................................................................................................................................................... 14

5.3.4 Digital Outputs .................................................................................................................................................... 14

5.4 Extension I/O Fan Module Circuit #1 & 2 ................................................................................................................. 15

5.4.1 Digital Inputs ....................................................................................................................................................... 15

5.4.2 Digital Outputs .................................................................................................................................................... 15

5.5 Extension I/O Fan Module Circuit #3 ....................................................................................................................... 15

5.5.1 Digital Outputs .................................................................................................................................................... 15

5.6 Extension I/O Unit Alarm & Limiting ......................................................................................................................... 15

5.6.1 Analog Inputs ..................................................................................................................................................... 15

5.6.2 Analog Outputs ................................................................................................................................................... 15

5.6.3 Digital Inputs ....................................................................................................................................................... 15

5.6.4 Digital Outputs .................................................................................................................................................... 15

5.7 Setpoints .................................................................................................................................................................. 16

5.7.1 Auto Adjusted Ranges ....................................................................................................................................... 19

5.7.2 Dynamic Default Values ..................................................................................................................................... 19

6 Unit Functions .............................................................................................................................................................. 20

6.1 Calculations .............................................................................................................................................................. 20

6.1.1 LWT Slope .......................................................................................................................................................... 20

6.1.2 Pulldown Rate .................................................................................................................................................... 20

6.2 Unit Type .................................................................................................................................................................. 20

6.3 Unit Enable ............................................................................................................................................................... 20

6.4 Unit Mode Selection ................................................................................................................................................. 20

6.4.1 Glycol Conguration ........................................................................................................................................... 21

6.5 Unit Control States ................................................................................................................................................... 21

6.6 Unit Status ................................................................................................................................................................ 22

6.7 Ice Mode Start Delay ............................................................................................................................................... 22

6.8 Evaporator Pump Control ........................................................................................................................................ 22

6.8.1 Pump Selection .................................................................................................................................................. 22

6.8.2 Primary/Standby Pump Staging ......................................................................................................................... 23

6.8.3 Auto Control ....................................................................................................................................................... 23

6.9 Noise Reduction ....................................................................................................................................................... 23

6.10 Leaving Water Temperature (LWT) Reset ............................................................................................................... 23

6.10.1 LWT Target ........................................................................................................................................................ 23

6.10.2 Leaving Water Temperature (LWT) Reset ......................................................................................................... 23

6.10.3 4-20 mA External Signal Reset .......................................................................................................................... 24

6.10.4 Outside Air Temperature (OAT) Reset ............................................................................................................... 24

6.11 Unit Capacity Control ............................................................................................................................................... 25

6.11.1 Compressor Staging in Cool Mode .................................................................................................................... 25

6.11.2 Compressor Staging in Ice Mode ....................................................................................................................... 25

6.11.3 Staging Sequence .............................................................................................................................................. 25

6.11.4 Compressor Capacity Control In Cool Mode ..................................................................................................... 26

6.11.5 Load/Unload Sequence ...................................................................................................................................... 26

6.11.6 Compressor Capacity Control In Ice Mode ........................................................................................................ 26

6.12 Unit Capacity Overrides ........................................................................................................................................... 26

D EOMAC00A04-14_02 - 3/–EN 62

6.12.1 Soft Load ............................................................................................................................................................ 26

6.12.2 Demand Limit ..................................................................................................................................................... 26

6.12.3 Network Limit ...................................................................................................................................................... 27

6.12.4 Current Limit ....................................................................................................................................................... 27

6.12.5 Maximum LWT Pulldown Rate ........................................................................................................................... 27

6.12.6 High Water Temperature Capacity Limit ............................................................................................................ 27

6.13 Daikin on Site ........................................................................................................................................................... 27

6.14 Heat Recovery ......................................................................................................................................................... 27

6.15 Heat Recovery Pump ............................................................................................................................................... 28

6.16 Rapid Restart ........................................................................................................................................................... 28

7 Software Options ......................................................................................................................................................... 30

7.1 Inserting the Password in a Spare Controller .......................................................................................................... 30

7.1.1 Modbus MSTP Software Option ......................................................................................................................... 31

7.1.2 BACNET MSTP .................................................................................................................................................. 32

7.1.3 BACNET IP ........................................................................................................................................................ 33

8 Circuit Functions ......................................................................................................................................................... 34

8.1 Calculatio ns.............................................................................................................................................................. 34

8.1.1 Refrigerant Saturated Temperature ................................................................................................................... 34

8.1.2 Evaporator Approach ......................................................................................................................................... 34

8.1.3 Suction Superheat .............................................................................................................................................. 34

8.1.4 Discharge Superheat .......................................................................................................................................... 34

8.1.5 Oil Dierential Pressure ..................................................................................................................................... 34

8.1.6 Maximum Saturated Condenser Temperature ................................................................................................... 34

8.1.7 High Saturated Condenser Hold Value –........................................................................................................... 34

8.1.8 High Saturated Condenser Unload Value –....................................................................................................... 34

8.1.9 Condenser Saturated Temperature Target ........................................................................................................ 34

8.1.10 Heat Recovery Condenser Saturated Temperature Target ............................................................................... 34

8.2 Circuit Control Logic ................................................................................................................................................. 34

8.2.1 Circuit Availability ............................................................................................................................................... 34

8.2.2 Starting ............................................................................................................................................................... 34

8.3 Circuit Status ............................................................................................................................................................ 35

8.4 Compressor Control ................................................................................................................................................. 36

8.5 Condenser Fan Control ............................................................................................................................................ 37

8.5.1 Saturated Condenser Temperature Target ........................................................................................................ 37

8.5.2 Heat Recovery Saturated Condenser Temperature Target ............................................................................... 37

8.6 EXV Control (for chiller units) ................................................................................................................................... 38

8.7 Economizer Control ................................................................................................................................................. 39

8.8 Subcooler Control .................................................................................................................................................... 39

8.9 Liquid Injection ......................................................................................................................................................... 39

9 Alarms and Events ...................................................................................................................................................... 40

9.1 Signaling Alarms ...................................................................................................................................................... 40

9.2 Clearing Alarms ....................................................................................................................................................... 40

9.2.1 Remote Alarm Signal ......................................................................................................................................... 40

9.3 Description of Alarms ............................................................................................................................................... 40

9.3.1 Phase Volts Loss/GFP Fault .............................................................................................................................. 40

9.3.2 Evaporator Flow Loss ......................................................................................................................................... 40

9.3.3 Evaporator Water Freeze Protect ...................................................................................................................... 40

9.3.4 Evaporator #1 Water Freeze Protect ................................................................................................................. 41

9.3.5 Evaporator #2 Water Freeze Protect ................................................................................................................. 41

9.3.6 Evaporator Water Temperatures Inverted ......................................................................................................... 41

9.3.7 Leaving Evaporator Water Temperature Sensor Fault ...................................................................................... 41

9.3.8 Leaving Evaporator Water Temperature Sensor Fault #1 ................................................................................. 41

9.3.9 Leaving Evaporator Water Temperature Sensor Fault #2 ................................................................................. 41

9.3.10 AC Comm Failure ............................................................................................................................................... 41

9.3.11 Outdoor Air Temperature Sensor Fault .............................................................................................................. 41

9.3.12 External Alarm .................................................................................................................................................... 41

9.3.13 Emergency Stop Alarm ...................................................................................................................................... 41

9.4 Unit Events ............................................................................................................................................................... 41

9.4.1 Entering Evaporator Water Temperature Sensor Fault ..................................................................................... 42

9.4.2 Unit Power Restore ............................................................................................................................................ 42

9.4.3 ternal Event Ex .................................................................................................................................................... 42

9.4.4 Low Ambient Lockout ......................................................................................................................................... 42

9.5 Option Alarms .......................................................................................................................................................... 42

9.5.1 Heat Recovery Water Freeze Protect ................................................................................................................ 42

9.5.2 Heat Recovery Leaving Water Temperature Sensor Fault ................................................................................ 42

9.5.3 Option Comm Failure ......................................................................................................................................... 42

9.6 Option Events ........................................................................................................................................................... 42