Hitachi RAS-5FS3 - Wall Type Unit Servicing; Field Work Instructions and Best Practices; Field Issue: Compressor Burnout from Low Refrigerant; Field Issue: Poor Cooling with Long Piping

5. FIELD WORK INSTRUCTION.................................................................................................................... 5-1
5.1 Burnt-out Compressor due to Insufficient Refrigerant Charge ........................................................... 5-1
5.2 Insufficient Cooling Performance When A Long Piping Is Applied ..................................................... 5-2
5.3 Abnormally High Operating Sound [In-the-Ceiling Type Indoor Unit] ................................................. 5-3
5.4 Alarm Code “31” ................................................................................................................................. 5-4
5.5 Not Cooling Well due to Insufficient Installation Space for Outdoor Unit ........................................... 5-5
5.6 Attention for SET-FREE FXG/FX3 Series .......................................................................................... 5-6
5.7 Select Guide of Drain Pipe for Indoor Unit ......................................................................................... 5-11
5.8 Caution on Refrigerant Leakage ........................................................................................................ 5-12
5.9 Maintenance Work ............................................................................................................................. 5-14
5.10 Service & Maintenance Record by 7-Segment Display ..................................................................... 5-15
5.11 Service & Maintenance Record by Remote Control Switch ............................................................... 5-16
5.12 Service & Maintenance Record ......................................................................................................... 5-17
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