Difference between revisions of "Hitachi"
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| − | | | + | |Low Pressure Sensor |
| − | | | + | |Incorrect Wiring, Disconnecting Wiring<br>Breaking Wire, Short Circuit |
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Revision as of 03:39, 24 September 2017
Contents
Control Wiring Termination
In some cases with relatively big HVAC systems, where the total length of the wiring is high, control wire termination may be required. Termination can also be helpful if a control communication is noisy as a result of external electromagnetic influence. Termination can be easily made on CoolMasterNet side. To do it turn ON DIP Switch S2 - for line L1 and/or S3 - for line L2 as shown below. Rest of the DIP Switches should not be changed.
| Malfunction Code |
Category | Content of Abnormality | Leading Cause | Cool Automation Encoding | |
|---|---|---|---|---|---|
| 01 | Indoor Unit | Activation of Protection Device (Float Switch) | Activation of Float Switch (High Water Level in Drain Pan, Abnormality of Drain Pipe, Float Switch or Drain Pan) |
01 | 01 |
| 02 | Outdoor Unit | Activation of Protection Device (High Pressure Cut) |
Activation of PSH (Pipe Clogging, Excessive Refrigerant, Inert Gas Mixing) |
02 | 02 |
| 03 | Transmission | Abnormality between Indoor and Outdoor | Incorrect Wiring, Loose Terminals, Disconnect Wire, Blowout of Fuse, Outdoor Unit Power OFF |
03 | 03 |
| 04 | Transmission | Abnormality between Inverter PCB and Outdoor PCB | Inverter PCB - Outdoor PCB Transmission Failure (Loose Connector, Wire Breaking, Blowout of Fuse) |
04 | 04 |
| 04 | Transmission | Abnormality between Fan Controller and Outdoor PCB | Fan Controller - Outdoor PCB Transmission Failure (Loose Connector, Wire Breaking, Blowout of Fuse) |
04 | 04 |
| 05 | Supply Phase | Supply Phase | Incorrect Power Source, Connection to Reversed Phase, Open-Phase |
05 | 05 |
| 06 | Voltage | Abnormal Inverter Voltage Abnormal Fan Controller Voltage |
Outdoor Voltage Drop, Insufficient Power Capacity | 06 | 06 |
| 07 | Cycle | Decrease in Discharge Gas Superheat | Excessive Refrigerant Charge, Failure of Thermistor, Incorrect Wiring, Incorrect Piping Connection, Expansion Valve Locking at Opened Position (Disconnect Connector) |
07 | 07 |
| 08 | Cycle | Increase in Discharge Gas Temperature | Insufficient Refrigerant Charge, Pipe Clogging, Failure of Thermistor, Incorrect Wiring, Incorrect Piping Connection, Expansion Valve Locking at Closed Position (Disconnect Connector) |
08 | 08 |
| 0A | Transmission | Abnormality between Outdoor and Outdoor | Incorrect Wiring, Breaking Wire, Loose Terminals | 10 | 0A |
| 0b | Outdoor Unit | Incorrect Outdoor Unit Address Setting | Incorrect Outdoor Unit Address Setting | 11 | 0B |
| 0C | Outdoor Unit | Incorrect Outdoor Unit Main Unit Setting | Two (or more) Outdoor Units Set as “Main Unit” | OC | OC |
| 11 | Sensor on Indoor Unit | Inlet Air Thermistor | Incorrect Wiring, Disconnecting Wiring Breaking Wire, Short Circuit |
11 | 11 |
| 12 | Sensor on Indoor Unit | Outlet Air Thermistor | Incorrect Wiring, Disconnecting Wiring Breaking Wire, Short Circuit |
12 | 12 |
| 13 | Sensor on Indoor Unit | Freeze Protection Thermistor | Incorrect Wiring, Disconnecting Wiring Breaking Wire, Short Circuit |
13 | 13 |
| 14 | Sensor on Indoor Unit | Gas Piping Thermistor | Incorrect Wiring, Disconnecting Wiring Breaking Wire, Short Circuit |
14 | 14 |
| 19 | Fan Motor | Activation of Protection Device for Indoor Fan | Fan Motor Overheat, Locking | 19 | 19 |
| 21 | Sensor on Outdoor Unit | High Pressure Sensor | Incorrect Wiring, Disconnecting Wiring Breaking Wire, Short Circuit |
21 | 21 |
| 22 | Sensor on Outdoor Unit | Outdoor Air Thermistor | Incorrect Wiring, Disconnecting Wiring Breaking Wire, Short Circuit |
22 | 22 |
| 23 | Sensor on Outdoor Unit | Discharge Gas Thermistor on Top of Compressor | Incorrect Wiring, Disconnecting Wiring Breaking Wire, Short Circuit |
23 | 23 |
| 24 | Sensor on Outdoor Unit | Heat Exchanger Liquid Pipe Thermistor | Incorrect Wiring, Disconnecting Wiring Breaking Wire, Short Circuit |
24 | 24 |
| 25 | Sensor on Outdoor Unit | Heat Exchanger Gas Pipe Thermistor | Incorrect Wiring, Disconnecting Wiring Breaking Wire, Short Circuit |
25 | 25 |
| 29 | Sensor on Outdoor Unit | Low Pressure Sensor | Incorrect Wiring, Disconnecting Wiring Breaking Wire, Short Circuit |
29 | 29 |
