Difference between revisions of "Hitachi"

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! style="text-align: center; font-weight: bold;" | Content of Abnormality
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! style="text-align: center; font-weight: bold;" | Leading Cause
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! colspan="2" | Cool<br>Automation<br>Encoding
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| style="text-align: center; " | 01
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| style="text-align: center; " | Indoor Unit
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| Activation of Protection Device (Float Switch)
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| Activation of Float Switch<br> (High Water Level in Drain Pan,<br> Abnormality of Drain Pipe, Float Switch or Drain Pan)
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| style="text-align: center; " | 01
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| style="text-align: center; " | 01
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| style="text-align: center; " | 02
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| style="text-align: center; " | Outdoor Unit
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| Activation of Protection Device<br> (High Pressure Cut)
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| Activation of PSH (Pipe Clogging, Excessive<br> Refrigerant, Inert Gas Mixing)
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| style="text-align: center; " | 02
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| style="text-align: center; " | 02
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Revision as of 01:56, 24 September 2017

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.
CM5-dips-TO.png

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
Retrieved from "http://www.coolautomation.wiki/index.php?title=Hitachi&oldid=306"