Daikin LRLEQ5AY1(E) - Default Chapter; Table of Contents

SiENBE28-901
Air Cooled Refrigeration Condensing Unit 1
Air Cooled Refrigeration
Condensing Unit
LRMEQ5AY1, 6AY1, 8AY1, 10AY1, 12AY1, 15AY1, 20AY1
LRLEQ5AY1, 6AY1, 8AY1, 10AY1, 12AY1, 15AY1, 20AY1
Air Cooled Refrigeration Condensing Unit 1
1
LRMEQ5AY1, 6AY1, 8AY1, 10AY1, 12AY1, 15AY1, 20AY1 1
LRLEQ5AY1, 6AY1, 8AY1, 10AY1, 12AY1, 15AY1, 20AY1 1
1. Introduction .............................................................................................2
2. Standard Specification ............................................................................7
2.1 Standard Specification .............................................................................7
2.2 Set Values for Functional Components and Protection Devices............13
2.3 Operation Limits .....................................................................................14
2.4 Wiring Diagram.......................................................................................15
2.5 Piping Diagram.......................................................................................18
2.6 Description and Layout of Functional Parts and Piping Diagram ...........21
3. Field Settings ........................................................................................30
3.1 Field Setting From Outdoor Unit.............................................................30
4. Description of Functions and Operation................................................40
4.1 Operating Mode......................................................................................40
4.2 Outline of Functions ...............................................................................47
4.3 Detailed Description of Functions...........................................................48
5. Test Operation ......................................................................................57
5.1 Refrigerant Piping...................................................................................57
5.2 Field Wiring ............................................................................................63
5.3 Inspection and Pipe Insulation ...............................................................66
5.4 Checks after Work Completion...............................................................69
5.5 Additional Refrigerant Charge ................................................................69
5.6 Test Run.................................................................................................71
6. Troubleshooting ....................................................................................73
6.1 Checking Points at Servicing..................................................................73
6.2 List of Malfunction Codes .......................................................................76
6.3 Checking Malfunction Codes by LED Lamps on PCB............................77
6.4 Checking Malfunction Codes of the Condensing Unit ............................79
6.5 Troubleshooting by RAM Monitor...........................................................80
6.6 Flow Chart for Troubleshooting ..............................................................84
6.7 Maintenance.........................................................................................141
7. Appendix (Supplementary Information)...............................................149
7.1 Restriction Matter of Showcase............................................................149
7.2 Selection of Expansion Valve...............................................................149
7.3 Trouble Case with Present Machine (R-407C).....................................150
7.4 Option List ............................................................................................154