Air conditioner circuit board, circuit board, control board, PCB development, design and production
Air conditioner circuit board, circuit board, control board, PCB development, design and production
1. Electrical specifications:
AC110V/60HZ Maximum compressor load output 2kw Static power consumption 5w(MAX)
AC230V/50HZ Maximum compressor load output 2kw Static power consumption 5w(MAX)
2. Function overview:
1. This machine has four functions: automatic, cooling, air supply and heating
2. It can be scheduled to turn on or off at scheduled time: the longest 12 hours (digital display) the shortest 1 hour, in one hour increments
3. Temperature setting range: 18°C~32°C. Fahrenheit 64`F~90`F. (The display of Celsius and Fahrenheit can be switched by a resistor (R14).
4.The compressor is activated again with a three-minute delay protection: that is, there is a three-minute interval from the compressor shutdown to the restart (there is no three-minute delay protection for the first startup).
5. Compressor startup current limit protection.
6. Heating and anti-cold wind function
7. The functions of remote control and wire control are the same
8. Head shaking function: when the fan is turned off, shaking your head off. Manually open
9. Sleep function and photocatalyst (AC110V/220V or DC12V) optional function
10. Display temperature range: 0℃~50℃; Fahrenheit 32`F~122`F.
11. Shut down memory function, restore the state before shutdown when the machine is turned on (no memory at timing).
12. Each state has an automatic frosting function
3. Standby state: (refers to the first power-on state)
1. When the power is turned on, the function selection function is as follows:
Power-on and start-up are fully automatic. The compressor has no three-minute clock protection, and there is no timing setting when power-on. The zero segment of the timing is no timing.
The automatic default cooling setting temperature is 24℃ (75℉), heating is 20℃ (68℉)
Four. Fully automatic operation mode:
When the room temperature is higher than 23°C and 75°F, the automatic refrigeration function is selected.
Select the automatic air supply function when the room temperature is between 20℃~23℃Fahrenheit 68℉~75℉.
Select the automatic heating function when the room temperature is lower than 20°C and 68°F.
Automatic cooling wind speed switch-room temperature-when the set temperature is greater than 5℃ (9℉), the fan runs at high wind speed
Room temperature-when the set temperature is less than 5°C (9°F), the fan runs at low wind speed
Fully automatic refrigeration compressor operation mode-room temperature-when the set temperature is greater than 3°C (5°F), the compressor runs
Room temperature-when the set temperature is less than 3°C (5°F), the compressor stops.
Fully automatic heating wind speed switching--When the set temperature-room temperature is greater than 5°C (9°F), the fan runs at a high wind speed.
Set temperature-when the room temperature is less than 5°C (9°F), the fan runs at low wind speed.
Set temperature-compressor runs when room temperature is greater than 3℃ (5℉)
When the compressor is activated, there is a 20 second anti-cold function
Set temperature-when the room temperature is less than 3℃ (5℉), the compressor stops
5. Single cold temperature control method:
When the room temperature is higher than or equal to the set temperature +1°C (2°F), the compressor is activated. The fan is in working state, and the room temperature is lower than or equal to the set temperature -1°C (2°F) and the compressor stops. The fan is in working state. The high and low control mode of the fan is manual.
Six. Single heat temperature control method:
The four-way valve is in working condition, the room temperature is lower than or equal to the set temperature -1°C (2°F), the compressor is activated. The fan works, and the room temperature is higher than or equal to the set temperature +1°C (2°F) and the compressor stops. The valve works, the fan works, and the high and low control mode of the fan works is manual.
Seven. Single air supply method:
The compressor stops working, the four-way valve stops working, the FAN LED is on, the temperature adjustment key is valid, and the wind speed is timed. Function selection. The switch machine key is valid.
8. Key operation instructions:
Each time the key is pressed, the buzzer will respond to indicate that the key has been accepted.
1. ON/OFF button: this button is the switch button, it can memorize the state set last time when it is powered off, and the state set last time when it is turned on again, the corresponding indicator light is on, and the current room temperature is displayed ( Celsius 0℃~50℃), (Fahrenheit 32`F~122`F), press this button during operation, all indicators will be off, all work will stop, and the compressor will enter the three-minute protection state. Wind speed. Function. Temperature is memory Status, timing without memory. In this status, it can be scheduled to boot for 1~12 hours.
2. MODE key: This key is a function selection key, which is valid when the system is ON. The function switching sequence is as follows:
Fully automatic ------- Refrigeration ------- Air supply ------- Heating -----
The corresponding indicator light is on, and the selected function starts to be executed after two seconds of stopping the button.
3.SPEED key: This key is the wind speed switch key, press this key to switch mode:
High wind --------- Low wind ---
When the system is fully automatic, this key is invalid. When this key is valid, the corresponding HI.LOW LED is on
4.TIME button: This button is the timing setting button. Pressing this button during shutdown is the scheduled start-up time. Only the scheduled time is displayed. Other LEDs are off. Pressing this button during the start-up is the scheduled shutdown time. When it is greater than zero, the TIME LED lights up, and the digital display changes from the indoor temperature display to the time setting. If you don't press this key within 2 seconds, the indoor temperature display will be restored. When you press this key, the digital display will increase from 0 to 12 and increase by 1 display cycle , 0 means unscheduled or unscheduled startup, others are the corresponding hours. Press and hold this button, and the number will increase by one every 0.5 seconds. When there is a timing function, the TIEM LED will be on. When the number is zero, the TIME LED will not be on, indicating No timing function. When you press this button, the ST light indicator will be on and the NT light will be off. The NT light will be on after 2 seconds. (ST is the setting state, NT is the unset state)
2. UP and DOWN keys: These two keys are the set temperature up and down adjustment keys. Press the UP key to increase the number. If you press and hold this key, the set temperature will increase by one degree every 0.5 seconds. Press the DOWN number to decrease, If you press and hold this button, the set temperature will decrease by one degree every 0.5 seconds. The adjustment range is 18℃~32℃Fahrenheit 64℉~90℉. The initial adjustment value is the power-on default value. When this button is pressed, the ST light will be on , The NT light is off. The NT light will be on after 2 seconds.
3. SWING key: This key is a shaking head key, which controls the direction of air supply. Press this key to:
Shaking your head---------Don't shaking your head--------
When the fan stops, shake your head to stop, and automatically restore the original state when the fan is turned on. The corresponding SW LED is on
4. SLEEP key: This key is the sleep operation mode key. Pressing this key is effective in single cooling mode. The SLEEP LED is on. After the sleep function is turned on, the set temperature will automatically increase by 1℃ (2℉.) and another interval. It will automatically increase by 1℃(2℉) after 2 hours. The temperature will not increase after 2 hours. The machine will automatically shut down 12 hours after the sleep function is turned on. If sleep is turned off at any time after sleep is turned on, the temperature will automatically return to the original set temperature and Status. Sleep mode takes the set time as the priority to shut down the timer, that is, if there is a time, the time is subject to the time, and the time is 12 hours.
Nine. Automatic cream function
Refrigeration method defrosting: After working for 40 minutes, it is detected that the indoor coil temperature is less than or equal to -2°C (28°F), that is, stop and defrost for 5 minutes. When defrosting, the compressor is turned off, and the power indicator is always on. , After defrosting for 5 minutes, exit defrosting, and the compressor will be reactivated to enter the next working cycle. Check every 40 minutes.
Heating method defrosting: After working for 40 minutes, when the outdoor coil temperature is detected to be less than or equal to -5°C (23°F), it will enter the defrosting function. When defrosting, the four-way valve is closed, the fan stops, and compression The machine continues to work. The POWER light flashes at 0.5HZ. When the coil temperature rises to 8°C (46°F) or defrosts for 10 minutes, the defrosting is exited, and the four-way valve and fan return to working status. Check the outdoor every ten minutes. Coil temperature, when the outdoor coil temperature is less than or equal to -5℃ (23℉), the defrosting function will be activated again. (Attention! The coil copper rod must be correctly installed on the coil to ensure normal operation of the whole machine), If the defrosting function is not required, a 10K1/4W resistor can be connected to the copper rod socket
10. Anti-cold wind function
The anti-cold air function means that when the heating function is turned on, the fan can be activated 20s after the compressor is activated.
11. Full water detection function
When the water tank level reaches the full water level, all loads will stop working after 3 seconds, the buzzer will sound fifteen times and then stop, and the POWER indicator light will flash at 0.5hz to inform the user that all buttons are invalid until the water in the tank is cleared. , After the water level switch is reset, press the ON/OFF button to reactivate the system.
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