18.5.6 P1
When the pressure is over 4.4MPa, the system will display P1 protection, the ODUs will be standby.
When the pressure is lower than 3.2MPa, P1 protection is finished and normal operation resumes.
Refers to the wiring diagram to check whether the
high pressure switch is correctly connected
The wire of high pressure is broken or short circuit
high pressure switch the system running normally
No
Reconnect pressure switch
Low heat exchange efficiency, causes may include
dirty heat exchanger, dirty plate type heat
exchanger, abnormal fan operation, water pump
error, too closed outdoors installation, etc.
Replace high pressure switch
The high pressure side of the system is blocked,
caused by crushed or bent pipe, blocked filter or
EXV, etc.
Inspect the system and fix
the error
Yes
Yes
PCB is damaged
P1: High pressure protection
Yes
Inspect the system and fix
the error
No
Yes
No
No
Replace PCB
81
V.2
Содержание EMCH-10W/1
Страница 14: ...14 6 Dimensiones EMCH 07W 1 Unidad mm EMCH 10W 1 EMCH 12W 1 EMCH 14W 3 EMCH 16W 3 Unidad mm V 2...
Страница 16: ...16 6 Diagrama de cables EMCH 07W 1 V 2...
Страница 17: ...17 EMCH 10W 1 V 2...
Страница 18: ...18 EMCH 12W 1 EMCH 14W 3 EMCH 16W 3 V 2...
Страница 29: ...29 V 2...
Страница 30: ...30 V 2...
Страница 31: ...31 V 2...
Страница 33: ...33 12 Vista ampliada EMCH 07W 1 28 1 28 2 28 3 28 5 28 6 28 4 28 7 V 2...
Страница 35: ...35 EMCH 10W 1 V 2...
Страница 37: ...37 EMCH 12W 1 EMCH 14W 3 EMCH 16W 3 V 2...
Страница 53: ...53 Para acceder el panel de control abrir la tapa retirar el tornillo 1 y tornillo 2 subir el panel 3 V 2...
Страница 95: ...MINI CHILLER INVERTER INSTALLATION S AND USER S MANUAL EMCH 10W 1 EMCH 12W 1 EMCH 14W 3 EMCH 16W 3 V 2...
Страница 110: ...7 Wiring Diagram EMCH 07W 1 15 V 2...
Страница 111: ...EMCH 10W 1 EMCH 12W 1 16 V 2...
Страница 112: ...EMCH 14W 3 EMCH 16W 3 17 V 2...
Страница 121: ...11 Hydraulic Data 11 1 Useful pump head curves P C constant curve for 7 kW P C constant curve for 10 12 14 16 kW 26 V 2...
Страница 122: ...11 2 Water Side Water Pressure Drop EMCH 07W 1 EMCH 10W 1 Heat exchanger pressure drop water side 27 V 2...
Страница 123: ...EMCH 12W 1 EMCH 14W 3 28 V 2...
Страница 124: ...EMCH 16W 3 29 V 2...
Страница 126: ...13 Exploded View EMCH 07W 1 31 V 2...
Страница 128: ...EMCH 10W 1 EMCH 12W 1 33 V 2...
Страница 130: ...EMCH 14W 3 EMCH 16W 3 35 V 2...