Hitachi YUTAKI Series - Compressor ON;OFF Control

153
Compressor ON/OFF control
SMGB0066 rev.0 - 12/2009
Available Optional
functions
Service Manual
5

Keep the same status as before. Setting before shipment:

1

Thefunctionselectionusingthejumperleadsettingisshowninthetablebelow.
  
0 Enable
Ifthisfunctionis'Enable',incaseofpowerfailuretheunitwillrestart
automatically once the power is recovered
1 Disable

ON/OFFTemperatureDifferential(Thermo-ON/OFFDifference)iscongurableby1ºC,i.e.,“1,2,3,4”bysettingmode
operation. The factory setting (default) is “4 ºC”.
This mode is activated by turning pin 3 of DSW1 ON.
Pressing PSW2 and PSW1 for more than three seconds at the same time allows changing from each item displayed. To
nishchanging,pressPSW2andPSW1formorethanthreesecondsagainafterchangingtopredeterminedsetting.
The chart of setting operation is shown below.
PSW1 PSW1 PSW1
PSW2
PSW1 ( )
PSW2 ( )
PSW2 PSW2
PSW1: Valve up
PSW2: Valve down