51
OCH665B
(5) Operation data during emergency operation
During emergency operation, no communication is performed with the indoor unit, so the data items needed for operation
are set to the following values:
Operation data
Intake temperature (TH1)
Indoor pipe temperature (TH2)
Indoor 2-phase pipe temperature (TH5)
Set temperature
Outdoor pipe temperature (TH3)
Outdoor 2-phase pipe temperature (TH6)
Outdoor ambient temperature (TH7)
Pressure sensor saturated temperature (63HS)
Temperature difference code
(room temperature - set temperature) (∆Tj)
Operation mode
COOL
27°C
5°C
5°C
25°C
45°C
50°C
35°C
50°C
5
HEAT
20.5°C
45°C
50°C
22°C
5°C
5°C
7°C
50°C
5
*1
*1
*1
*1
Remarks
*1
If the thermistor temperature data is normal (not open/short), that data is loaded into the control as valid data.
When the unit enters emergency operation and TH values are mismatched, set the thermistors to open/short.
And the unit runs emergency operation with the values listed above.
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