Hitachi RAS-8FSXNS2E - Page 7

V
PMML0628 rev.0 - 05/2023
I
General Index
3.5 Air-Tight Test ....................................................................................................41
3.5.1 Tightening check of stop valves ............................................................41
3.5.2 Air-ght test method .............................................................................42
3.5.3 Insulaon work ......................................................................................42
3.6 Vacuuming .......................................................................................................43
3.6.1 Basic Method ........................................................................................43
3.6.2 Triple Evacuaon Method .....................................................................43
3.7 Charging work .................................................................................................. 44
3.7.1 Maximum permied concentraon of hydrouorcarbon (HFC)
refrigerant ..............................................................................................45
4. Drain piping ............................................................................................................... 47
4.1 Condensaon drainage system .......................................................................48
4.2 Installaon posion of the oponal drainage kit DBS-TP10A .........................49
4.2.1 Drain kit components ...........................................................................49
4.2.2 Quanty .................................................................................................50
5. Electric wiring ...........................................................................................................51
5.1 General informaon ........................................................................................52
5.2 General vericaons ........................................................................................52
5.3 Seng of the DSW switches on PCB1 ............................................................. 53
6. Commissioning .........................................................................................................59
6.1 Preliminary checks ........................................................................................... 60
6.2 Carry out the Test Run ..................................................................................... 61