Daikin RZQS100B7V3B [202/344] E4 actuation of low pressure sensor single phase c series

Daikin RZQS100B7V3B [202/344] E4 actuation of low pressure sensor single phase c series
SiBE27-702 Troubleshooting by Remote Controller Display / LED Display
Troubleshooting 189
5.19 E4” Actuation of Low Pressure Sensor: Single phase C
Series
Remote
Controller
Display
E4
Applicable
Models
RZQ100~140C7V1B, RZQS125·140C7V1B
Method of
Malfunction
Detection
[In cooling]
Detect malfunctions by the pressure sensor (S1NPH).
[In heating]
Detect malfunctions by the heat exchanger distribution pipe thermistor (R4T).
Malfunction
Decision
Conditions
[In cooling]
When the detection pressure is the following value
0.12 MPa or less continues for 5 minutes
When the saturated pressure equivalent to the detection temperature is the following value
0.12 MPa or less continues for 5 minutes
Supposed
Causes
The stop valve remained closed
Faulty pressure sensor and intermittent harness
Faulty outdoor PC board
Abnormal drop of low pressure
(Inadequate refrigerant)
(Abnormal refrigerant piping system (liquid pipe system))
(Faulty electronic expansion valve)

Содержание

Скачать