Air-cooled modular chiller unit
72
7) Power supply phase sequence malfunction
8) Communication malfunction
Power supply phase sequence
malfunction.
Communication malfunction
Yes
Inform the customer service
center.
Phase sequence error.
Lack of phase.
Phase lack protector is broken.
PCB mistakes to alarm.
No
Yes
Adjust connecting wire.
No
No
No
Yes
Check power supply.
Yes
Yes
Replace phase lack
protector.
Replace PCB.
Inform the customer service
center.
No power input to unit or wired
controller.
Communicating wire malfunction.
Address repeat.
PCB mistakes to alarm.
The attachments of unit have
strong
electromagnetic
interference.
Replace PCB.
Yes
Inspect power supply.
Yes
Yes
Inspect communicating
wire.
Adjust address.
Yes
Yes
Yes
Reduce electromagnetic
interference.
No
No
No
No
No
Summary of Contents for MCCDH30A-TA3SL
Page 37: ...Air cooled modular chiller unit 37 MCCH65A SA3L...
Page 38: ...Air cooled modular chiller unit 38 MCCD65A SA3L...
Page 40: ...Air cooled modular chiller unit 40 MCCH130A SA3L...
Page 41: ...Air cooled modular chiller unit 41 185 kW module...
Page 46: ...Air cooled modular chiller unit 46 130 kW module...
Page 48: ...Air cooled modular chiller unit 60 200kW module...
Page 78: ...Air cooled modular chiller unit 78 65kW module 130kW module...
Page 153: ...Air cooled modular chiller unit Fig 4 70 Fig 4 71...
