111
Low pressure protection
Low pressure protection
Whether the wiring
between the low pressure
protector and main control
board is connected well or
correctly
Whether the wiring
between the low pressure
protector and main control
board is connected well or
correctly
Method: Disconnect the plug.
Measure the resistance of the
low pressure protector. If the
protector is normal the value is
o
Method: Disconnect the plug.
Measure the resistance of the
low pressure protector. If the
protector is normal the value is
o
Yes
Yes
Connect it well
Connect it well
Replace outdoor main board
Replace outdoor main board
No
Replace low pressure protector
Replace low pressure protector
No
Whether the low
pressure protector
is broken
Whether the low
pressure protector
is broken
Check whether the outdoor
ambient temperature is too
low
Check whether the outdoor
ambient temperature is too
low
No
Stop the unit
Stop the unit
Yes
Open fully valve core of
high pressure valve
Open fully valve core of
high pressure valve
No
Check whether valve core
of high p
ressure
valve is
opened
Check whether valve core
of high p
ressure
valve is
opened
Check if the indoor fan runs
properly in cooling mode
Check if the indoor fan runs
properly in cooling mode
please refer to the solution of fan
speed has been out of control
malfunction. Find out the cause and
have it solved.
please refer to the solution of fan
speed has been out of control
malfunction. Find out the cause and
have it solved.
No
Yes
Yes
No
Check whether the refrigerant
system is ok
Check whether the refrigerant
system is ok
Refrigerant is not enough add the
refrigerant
Refrigerant is not enough add the
refrigerant
No
Содержание 3PAMS18-HH-MZO2
Страница 5: ...4 ...
Страница 28: ...27 6 Wiring Diagrams 6 1 Wiring diagram of 1 drive 2 outdoor M2OF 18HFN1 M M2OH 18HFN1 M 3PAMS18 HH MZO2 ...
Страница 29: ...28 3PAMSH18 MZO2 5 ...
Страница 30: ...29 6 2 Wiring diagram of 1 drive 3 outdoor M3OF 27HFN1 M ...
Страница 31: ...30 3PAMSH27 MZO3 3PAMS27 HH MZO3 ...
Страница 32: ...31 M3OH 27HFN1 M ...
Страница 33: ...32 6 3 Wiring diagram of 1 drive 4 outdoor M4OF 36HFN1 M ...
Страница 34: ...33 M4OH 36HFN1 M 3PAMSH36 MZO4 ...
Страница 36: ...35 6 4 Wiring diagram of 1 drive 5 outdoor M5OF 48HFN1 M ...
Страница 46: ...45 7 CN53 CN53 Connect to main PCB CN5 8 CN52 CN52 Connect to PFC inductor 9 CN55 CN55 Connect to main PCB CN7 ...
Страница 47: ...46 PCB board of M5OF 48HFN1 M M4OH 36HFN1 M ...
Страница 51: ...50 PCB Board of 3PAMS48 HH MZO5 3PAMS36 HH MZO4 3PAMSH48 MZO5 ...
Страница 53: ...52 IPM board of 3PAMS48 HH MZO5 3PAMS36 HH MZO4 3PAMSH48 MZO5 ...
Страница 72: ...71 Operating els Standby Pic 2 IPM for 2 zone 3 zone ...
Страница 73: ...72 PIC3 Main board LED when power on and unit standby Pic 2 IPM for 4 zone 5 zone Power Standby Operating els ...
Страница 91: ...90 Operating els Standby Pic 2 IPM board for 2 zone 3 zone ...
Страница 92: ...91 PIC3 Main board LED when power on and unit standby Pic 2 IPM for 4 zone 5 zone Power Standby Operating els ...
Страница 93: ...92 PIC 4 Check point button press 1 time for check how many indoor units are connected ...
Страница 99: ...98 IPM board for 4 zone ...
Страница 103: ...102 Two ports of the inductance Inductance ...
Страница 106: ...105 Vs Vcc Vsp FG ...
Страница 110: ...109 ...
Страница 113: ...112 ...
Страница 116: ...115 ...
Страница 120: ...119 Faulty outdoor PCB Trouble shooting ...
Страница 129: ...128 ...
Страница 136: ...135 Red Blue Red Yellow Brown Orange ...
Страница 137: ...136 Brown White ...