Table of contents
Installer and user reference guide
4
LREN8~12A7 + LRNUN5A7
COâ‚‚ ZEAS outdoor unit and capacity up unit
4P704142-1 – 2022.08
17.6 To fix the refrigerant charge label .................................................................................................................................. 121
18 Finishing the outdoor unit installation 122
18.1 To check the insulation resistance of the compressor .................................................................................................. 122
19 Configuration 123
19.1 Making field settings....................................................................................................................................................... 123
19.1.1 About making field settings............................................................................................................................ 123
19.1.2 To access the field setting components......................................................................................................... 123
19.1.3 Field setting components............................................................................................................................... 124
19.1.4 To access mode 1 or 2.................................................................................................................................... 126
19.1.5 To set field settings......................................................................................................................................... 127
20 Commissioning 128
20.1 Overview: Commissioning .............................................................................................................................................. 128
20.2 Precautions when commissioning .................................................................................................................................. 128
20.3 Checklist before commissioning ..................................................................................................................................... 129
20.4 About the test run........................................................................................................................................................... 130
20.5 To perform a test run (7-segment display) .................................................................................................................... 130
20.5.1 Test run checks............................................................................................................................................... 131
20.5.2 Correcting after abnormal completion of the test run.................................................................................. 133
20.6 Operating the unit........................................................................................................................................................... 133
20.7 Logbook........................................................................................................................................................................... 133
21 Hand-over to the user 135
22 Maintenance and service 136
22.1 Precautions for maintenance and service...................................................................................................................... 136
22.2 To prevent electrical hazards ......................................................................................................................................... 136
22.3 To release refrigerant ..................................................................................................................................................... 137
22.3.1 To remove refrigerant using the service ports .............................................................................................. 137
23 Troubleshooting 139
23.1 Precautions when troubleshooting ................................................................................................................................ 139
23.2 Prerequisites: Troubleshooting ...................................................................................................................................... 139
23.3 Solving problems based on error codes ......................................................................................................................... 139
23.3.1 Error codes: Overview .................................................................................................................................... 140
24 Disposal 144
25 Technical data 145
25.1 Service space: Outdoor unit ........................................................................................................................................... 145
25.2 Piping diagram: Outdoor unit ......................................................................................................................................... 148
25.3 Piping diagram: Capacity up unit.................................................................................................................................... 149
25.4 Wiring diagram: Outdoor unit ........................................................................................................................................ 150
26 Glossary 155
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