Daikin EWLD500MBYNN — обзор индикаторов неисправностей и систем безопасности в оборудовании [363/452]

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Daikin EWWD240MBYNN [363/452] Overview of circuit safeties
ESIE05-07 Overview of Fault Indications and Safeties
Part 3 – Troubleshooting 3–7
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1.5 Overview of Circuit Safeties
Circuit safeties
Code&display
CIRCUIT 1 SAFETY
Or
CIRCUIT 2 SAFETY
Description
Safety
possible if
unit is off?
1. Reverse
phase protector
1/2 U1: REV PHASE PROT Safety is activated if digital input is closed
Y
2. High pres-
sure switch
1/2 E3: HIGH PRESSURE SW Safety is activated if digital input is closed
Also manual reset, blue button, on the highpres-
sure switch activation at 25 bar
Y
3. Compressor
therm protection
1/2 E5: COMPR THERM PROT Safety is activated if digital input is closed
activation at 115°C and possible to reset at 95°C
Y
4. Overcurrent 1/2 E6: OVERCURRENT Safety is activated if digital input is closed Y
5. Discharge
therm. Protector
1/2 F3: DISCH THERM PROT Safety is activated if digital input is closed
activation at 135°C
Y
6. Low pressure 1/2 E4: LOW PRESSURE
P If low pressure LP setpoint
P Bypassed in startup
A) If unit probe is present: use unit probe
B) If EEV probe is present: use EEV probe
After a power ON there is a delay of 10 sec. for this
alarm (because controller must receive LP value of
EEV through pLAN network
Possible to reset if LOW pressure > LP setpoint
+0.2
Y
7. Freeze-up
safety
1/2 A4: FREEZE-UP Safety is activated if outlet water temp is to low
activation if evaporator leaving water is below
MOW -1.5°C and after allowed freeze up in speci-
fied time
Y
8. High pres-
sure transmitter
1/2 JA: HP TRANSM ERR Safety if transmitter does not work anymore
+Er / -Er readout by sensor
range 0...30 bar
(broken, bad contact, short circuit,...)
Y
9. Low pressure
transmitter
1/2 JC: LP TRANSM ERR Safety if transmitter does not work anymore
+Er / -Er readout by sensor range
R407c 0...18 bar
R134a -0.8 ... 7 bar
(broken, bad contact, short circuit,...)
Y
10. Outlet Evap-
orator sensor
error
1/2 CA: OUT E SENSOR ERR Sensor out of range
+Er / -Er read-out by sensor
(broken, bad contact, short circuit,...)
Y
11-1. EEV probe
error
1/2 A9: EEV PROBE ERR Sensor out of range (LP probe or NTC sensor)
(broken, bad contact, short circuit,...)
P Readout menu of LP:
> 7.0b (> 7.0 instead of + ER)
P Digital output open of EEV ( only if EEV 1/2 is
present in that circuit,...)
N
ESIE05-07.book Page 7 Wednesday, October 11, 2006 10:42 AM

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Изучите основные системы безопасности и индикаторы неисправностей в оборудовании. Узнайте, как они работают и как их можно сбросить для безопасной эксплуатации.