Dsw Setting And Led Indication; Troubleshooting - Hitachi PC-AMTB Installations- Und Betriebshandbuch

Dsw setting and led indication

4 DSW SETTINg AND LED INDICATION
  
Setting of DIP switches
DSW1: Not used
Factory setting
(Do not change)
  
LED indication
• Monitor led 1 is ON while PC-AMTB is power supplied.
• Monitor led 2 flickers from time to time when there is traffic at HLINK bus 1.
• Monitor led 3 flickers from time to time when IU is ON and there is traffic at HLINK bus 2.
• Monitor led 4 is used for system diagnosis.

5 TROUBLEShOOTINg

The indoor unit is not recognized by the outdoor unit despite being powered ON.
Check that PC-AMTB is power-supplied by checking monitor LED1. If it is OFF, please check fuse state, and in case it is fused, replace
it by a 5x20 mm, 250mA, 250V compatible fuse.
4 PMML0325A rev.0 - 07/2014