Daikin LX10F11B User Manual

2-33
019 E413
（LPT）
・ E415
（HPT）
Alarm
Logic
〈E413〉LPT≦-110 kPa with 3 minutes elapse or ≧1420 kPa with 3 minutes elapse
〈E415〉HPT≦-340 kPa with 3 minutes elapse or ≧4260 kPa with 3 minutes elapse
Possible
Causes
1. Faulty contact of connector X7A (CPU board)
2. Pressure transducer failure
3. Controller failure
Trouble
Shooting
Step 1. Check connector X7A and make sure it is properly installed.
Step 2-1. Connect manifold gauges and compare the value of pressure gauge and HPT value
in LCD display.
Replace HPT if the difference is greater than 50 kPa.
Step 2-2. Connect manifold gauges and compare the value of pressure gauge and LPT value
in LCD display.
Replace LPT if the difference is greater than 10 kPa.
Step 3. Turn on the circuit breaker and check if there is DC5V input from the controller.
X7A
V
V
CPU board
Sensor
name
Voltage value
Pin No.
(Connector X7A)
HPT
1
2
4
5
3
3
6
6
DC 5V
Refer to5.3 Pressure Sensor Characteristics
DC 5V
Refer to5.3 Pressure Sensor Characteristics
LPT
Black – Red
Black – White
：Input voltage DC5V
：Output voltage
DC5V
DC5V
LPT
Black
Red
White
HPT
Black
Red
White
6
4
2
5
3
1
Example of voltage check
(Connector X7A)
If input DC 5V is not present, check the controller.
If input DC 5V is present, replace the pressure transducer.
Controller
Action
E413 Backup operation
E415 Backup operation
0219-44LX10F11BEn.indd2-330219-44LX10F11BEn.indd2-33 2014/11/1916:38:052014/11/1916:38:05
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Daikin LX10F11B Specifications

General

Brand	Daikin
Model	LX10F11B
Category	Inverter
Language	English