6.6.6 Purge ............................................................................................................................................... 89
6.6.7 Auxiliary equipment ......................................................................................................................... 89
6.6.8 Describe chiller cycles ..................................................................................................................... 89
6.6.9 Review maintenance ....................................................................................................................... 89
7. OPERATING INSTRUCTIONS .................................................................................................................... 92
7.1 operator duties ........................................................................................................................................ 92
7.2 to start the chiller .................................................................................................................................... 92
7.3 Check the running system ...................................................................................................................... 92
7.4 To stop the chiller ................................................................................................................................... 93
7.5 After Limited Shutdown .......................................................................................................................... 93
7.7 After Extended Shutdown ....................................................................................................................... 93
7.8 Cold Weather Operation ......................................................................................................................... 93
7.11 Chiller Idle Requirement ....................................................................................................................... 95
7.11.2 Be idle for a long time: ................................................................................................................... 95
8. PURGE OPERATION SEQUENCE ............................................................................................................. 95
8.1 Purge Operating Modes ......................................................................................................................... 95
9.
MAINTENANCE ........................................................................................................................................ 96
9.1 General maintenance ............................................................................................................................. 96
9.1.1 Soldering and welding ..................................................................................................................... 97
9.1.2 Refrigerant properties ...................................................................................................................... 97
9.1.3 Adding Refrigerant ........................................................................................................................... 97
9.1.6 Leak Rate ......................................................................................................................................... 97
9.1.9 Checking Guide Vanes .................................................................................................................... 98
9.2 Weekly maintenance ............................................................................................................................ 100
9.3 Scheduled maintenance ....................................................................................................................... 101
9.3.1 Service On time ............................................................................................................................. 101
9.3.3 Inspect Purge ................................................................................................................................. 102
9.3.4 Purge Unit Maintenance ................................................................................................................ 102
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