Removal And Evacuation; Charging Procedures; Decommissioning - Beko BEHPI 090 Installation Manual

13 Informat on serv c ng
15. Removal and evacuat on
When break ng nto the refr gerant c rcu t to make repa rs of for any other purpose convent onal
procedures shall be used. However, t s mportant that best pract ce s followed s nce flammab l ty s a
cons derat on. The follow ng procedure shall be adhered to:
remove refr gerant;
purge the c rcu t w th nert gas;
evacuate;
purge aga n w th nert gas;
open the c rcu t by cutt ng or braz ng.
The refr gerant charge shall be recovered nto the correct recovery cyl nders. The system shall be
flushed w th OFN to render the un t safe. Th s process may need to be repeated several t mes.
Compressed a r or oxygen shall not be used for th s task.
Flush ng shall be ach eved by break ng the vacuum n the system w th OFN and cont nu ng to f ll unt l
the work ng pressure s ach eved, then vent ng to atmosphere, and f nally pull ng down to a vacuum.
Th s process shall be repeated unt l no refr gerant s w th n the system.
When the f nal OFN charge s used, the system shall be vented down to atmospher c pressure to enable
work to take place. Th s operat on s absolutely v tal f braz ng operat ons on the p pe-work are to take
place.
Ensure that the outlet for the vacuum pump s not closed to any gn t on sources and there s
vent lat on ava lable.
16. Charg ng procedures
In add t on to convent onal charg ng procedures, the follow ng requ rements shall be followed:
Ensure that contam nat on of d fferent refr gerants does not occur when us ng charg ng equ pment.
Hoses or l nes shall be as short as poss ble to m n m ze the amount of refr gerant conta ned n them.
Cyl nders shall be kept upr ght.
Ensure that the refr gerat on system s earthed pr or to charg ng the system w th refr gerant.
Label the system when charg ng s complete ( f not already).
Extreme care shall be taken not to overf ll the refr gerat on system.
Pr or to recharg ng the system t shall be pressure tested w th OFN. The system shall be leak tested
on complet on of charg ng but pr or to comm ss on ng. A follow up leak test shall be carr ed out pr or
to leav ng the s te.
17. Decomm ss on ng
Before carry ng out th s procedure, t s essent al that the techn c an s completely fam l ar w th the
equ pment and all ts deta l. It s recommended good pract ce that all refr gerants are recovered safely.
Pr or to the task be ng carr ed out, an o l and refr gerant sample shall be taken.
Spl t-type room a r cond t oner / Installat on Manual
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