Service
- 199 -
‘19 • HM-T-340
Troubleshooting guide
220 - High pressure alarm
YES
YES
NO
NO
Open the service valves.
NO
Defective the pressure
sensor (BP4)
→
replace.
Are the service valves fully open?
Is the connection of the pressure
sensor (BP4) OK?
Is the characteristics of the pressure
sensor (BP4) OK?
Correct it.
YES
1. During cooling:
- Does the fan motor run?
- Is the air flow obstructed?
- Is the installation space sufficient?
2. During heating:
- Is the indoor module’s sensor for
the heat exchanger correctly
connected?
- Is the filter blocked?
NO
NO
NO
YES
NO
NO
YES
YES
YES
YES
NO
Is the service valve on the water
line open?
Open it.
Is the valve(s)
functioning properly?
Is the operation signal of the
valves outputted correctly?
Replace the indoor unit relay board AA23.
Replace the valve(s).
Still the phenomenon persists,
If the phenomenon persists,
Is there clogging on the strainer on
the water line?
YES
NO
Clean - up the strainer.
Is air - bleed done properly?
Bleed the air in the water line.
Is the circulation pump setting
(Menu 5.11.1.2) done properly?
Set the appropriate value to
obtain enough water flow.
Is the operation signal of the pump
outputted correctly?
YES
Replace the pump.
Replace the indoor unit relay board AA23.
Troubleshooting guide
Содержание FDCW100VNX-A
Страница 7: ... 5 Technical data 19 HM T 340 Technical data ...
Страница 36: ... 34 Technical data 19 HM T 340 Dimensions FDCW71VNX A Meaning of symbol ...
Страница 38: ... 36 Technical data 19 HM T 340 FDCW140VNX A Meaning of symbol Dimensions ...
Страница 41: ... 39 Technical data 19 HM T 340 Electrical circuit diagram ...
Страница 42: ... 40 Technical data 19 HM T 340 Electrical circuit diagram ...
Страница 43: ... 41 Technical data 19 HM T 340 Electrical circuit diagram ...
Страница 44: ... 42 Technical data 19 HM T 340 Electrical circuit diagram ...
Страница 45: ... 43 Technical data 19 HM T 340 Electrical circuit diagram ...
Страница 46: ... 44 Technical data 19 HM T 340 Electrical circuit diagram ...
Страница 47: ... 45 Technical data 19 HM T 340 Electrical circuit diagram ...
Страница 48: ... 46 Technical data 19 HM T 340 Electrical circuit diagram ...
Страница 49: ... 47 Technical data 19 HM T 340 Electrical circuit diagram Split box HSB60 W ...
Страница 50: ... 48 Technical data 19 HM T 340 HSB100 Electrical circuit diagram ...
Страница 51: ... 49 Technical data 19 HM T 340 HSB140 Electrical circuit diagram ...
Страница 52: ... 50 Technical data 19 HM T 340 Electrical circuit diagram Outdoor units FDCW60VNX A ...
Страница 57: ... 55 Technical data 19 HM T 340 Electrical circuit diagram POWER SOURCE RC HY20 W sheet 3 ...
Страница 58: ... 56 Technical data 19 HM T 340 Electrical circuit diagram RC HY20 W sheet 4 ...
Страница 61: ... 59 Technical data 19 HM T 340 Electrical circuit diagram POWER SOURCE RC HY40 W sheet 3 ...
Страница 62: ... 60 Technical data 19 HM T 340 Electrical circuit diagram RC HY40 W sheet 4 ...
Страница 63: ... 61 Technical data 19 HM T 340 Electrical circuit diagram INDOOR UNIT HSB INDOOR UNIT HSB RC HY40 W sheet 5 ...
Страница 64: ... 62 Technical data 19 HM T 340 Electrical circuit diagram RC HY40 W sheet 6 ...
Страница 65: ...Installation 19 HM T 340 Installation 63 ...
Страница 133: ...Control 19 HM T 340 Control 131 ...
Страница 170: ... 168 Service 19 HM T 340 Service ...
Страница 263: ... 258 Service 19 HM T 340 Outdoor unit FDCW60VNX FDCW71VNX Component replacement ...
Страница 264: ...Service 259 19 HM T 340 FDCW100VNX FDCW140VNX LEK LEK Component replacement ...
Страница 290: ... 285 Components 19 HM T 340 Components ...
Страница 300: ... 295 Components 19 HM T 340 PT300 Component positions ...
Страница 301: ... 296 Components 19 HM T 340 Component positions PT300 PT300 A mm 1634 B mm 743 C mm 673 ...
Страница 302: ... 297 Components 19 HM T 340 PT500 Component positions ...
Страница 303: ... 298 Components 19 HM T 340 PT500 Component positions PT500 A mm 1835 B mm 897 C mm 832 ...
Страница 311: ...THo R THo A THo D Outside units FDCW60VNX 306 Components 19 HM T 340 Piping system ...