Sanyo CHDX09663 Discharge Temperature, Discharge temperature protection list, Compressor No

13. Discharge Temperature

W-2WAY ECO-i SYSTEM Control Functions

<Alarm Information>

(1) Discharge temperature protection alarm

This device sets an upper limit discharge temperature of 222°F for all compressors. When the discharge tem-
perature reaches 222°F, that compressor is stopped and restarted. If the same high discharge condition occurs
4 times, then an alarm occurs.
After a compressor has stopped, that compressor will not operate until the temperature has dropped to or
below the start-prohibit temperature.			1
Discharge temperature protection list
Compressor No.	Compressor 1	Compressor 2
Type	Inverter	Constant-speed
Stop temp.	222°F	222°F
Start-prohibit temp.	158°F	158°F
Alarm display	P03	P17

(2)Discharge sensor trouble detection control

An alarm occurs if the discharge temperature remains abnormally high (above 158°F), when the system has been stopped for 60 minutes.

*In this case, possible causes include sensor failure and compressor overheating caused by an insufficient level of refrigerant.

The alarm also occurs if the sensor temperature is at or above the abnormal temperature (176°F) when 20 min- utes have passed after the compressor stopped.

*In this case, it is possible that the discharge temperature from a different outdoor unit is being detected, due

to an error in the installation of the discharge thermistor.

Discharge sensor failure list

Compressor No.	Compressor 1	Compressor 2
Type	Inverter	Constant-speed
Alarm display	F04	F05

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