Daikin FH35BZV1 [195/397] Gas shortage function

Daikin RP125B7W1 [195/397] Gas shortage function
ESiEN02–01A General Functionality
Part 2 Functional Description 2–17
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1.12 Gas Shortage Function
Applicable units R(Y)P71-250B
Purpose The purpose of the gas shortage function is to detect refrigerant shortage before the unit stops due to
a discharge temperature that is too high.
Method When the thermostat is turned OFF due to a discharge pipe temperature that is too high and the E.V.
opening is 450 pulses or more, the gas shortage error is activated. However, operation does not stop
due to gas shortage.
To check the gas shortage error (U0), see page 3–54.
Used input The gas shortage function uses the following inputs:
Input
Connection on
indoor PCB
Connection on
outdoor PCB
Outdoor discharge thermistor R3T-X6A
Outdoor expansion valve Y1E-X24A

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