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PCB of indoor unit
2. Control of outdoor unit
Block diagram of control
No. 1 unit of indoor unit group
Drain
pump
Electric heater
Fan
PMV
Remote controller
PCB of indoor unit
Centralized management
Selected
PCB
HA
Sensor
TC2
Sensor
TC1A
Sensor
TA
Pressure
sensor
Fan
revo-
lution
sensor
(hall element)
No.2 unit of indoor unit group
PCB of indoor unit
Remote controller
No.3 unit of indoor unit group
PCB of indoor unit
Remote controller
No.4 unit of indoor unit group
PCB of indoor unit
Remote controller
No.5 unit of indoor unit group
Remote controller
No.6 unit of indoor unit group
PCB of indoor unit
Remote controller
No.7 unit of indoor unit group
PCB of indoor unit
Remote controller
Indoor and outdoor
communication system
Outdoor unit
High pressure
sensor
Low pressure
sensor
Exhaust temperature
sensor TD1
Suction
temperature
sensor TS
High pressure
switch
Inverter
compressor IOL
commercial
compressor OL
Outdoor fan
Electronic expanding
valve
Solenoid valve
4-way valve
7 segment nixie
tube
Defrosting
sensor TE
I/F computer board of outdoor unit
Selected unit board
Note: The 6HP outdoor unit is different from the above-mentioned.
First, the indoor PCB CPU will determine the corresponding running frequency
according to the difference between the room temperature and the setting
temperature of remote control unit and send out the running commands
( run/stop,cool/heat mode, running frequency) to the outdoor unit. Then, the outdoor unitwill determine the running mode according to the running command sent outby the CPU of each indoor unit, and modify the running frequency at the sametime to determine the necessary frequency and whether the fixed frequency
compressor will run. Finally, the frequency conversion PCB will send out the
required frequency to the converter to make the compressor run.
System running:
Snowfall preventing *
fan control PC board *
Demand running PC board
*only one of them can
be selected
Running selection
PC board Cooling
Heating
Full running/stop
PC board
Night low noise
running PC B
Compressor contactor
Maghetic contactor
for compressor
transducer
High pressure
switch
compressor 1
compressor 2
note
Все каталоги и инструкции здесь: http://splitoff.ru/tehn-doc.html
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