Product Name: Air Conditioning Controller

1、 Main functions and indicators of the controller

Main functions and technical indicators

major function 

1. Real time display function of ambient temperature.

2. Multiple parameter setting and adjustment functions.

3. There are three types of compressor protection functions, A, B, and C.

Main technical indicators

1. Applicable range of power supply voltage: 15VAC ± 10%.

2. Applicable frequency of AC power supply: 50/60Hz ± 10%.

3. The working temperature range of the controller is -25 ℃ to 75 ℃ (at 75 ℃, it can operate normally).

4. The humidity range of the controller's working environment is RH10% to RH100%.

5. Temperature control accuracy: ± 1 ℃.

6. Resolution: 1 ℃ or 1 ℉.

7. Temperature sensor parameters: NTC R25 ℃=10K Ω B25 ℃/50 ℃=3470K ± 1%.

8. Controller standby power consumption: ≤ 4W.

2、 Operation Guide

1. In normal display mode, long press the "SET" key to enter the setting state. After entering, press the "▲" and "▼" keys to change the setting items and values. If no key is pressed for eight seconds, the set state will automatically exit and the setting will be saved (if the power is cut off without a delay, the set value will not be permanently saved).

2. In normal display mode, if you need to check the set temperature, press the "▲" button once, and the digital tube will change from a temperature measurement value to a temperature set value display. After 5 seconds, it will automatically exit.

3. In normal display mode, press the "▼" button three times to cancel the compressor delay waiting.

When a malfunction occurs, the display screen flashes to display the fault code, the buzzer sounds, and pressing the SET key can cancel the audio.

Setting Table

三、Fault codes and corresponding relay action table

Explanation:

When the high voltage switch contact is disconnected and lasts for 0.5 seconds, the compressor stops, the decimal point (HPA) of the middle digit digital tube flashes, an alarm is triggered, and the compressor

Stop the machine, the alarm relay is engaged, and at the same time, the buzzer sounds to remind. The display screen flashes to show E02. The fault code must be powered off to be eliminated.

2. Shield low pressure detection for the first 220 seconds after starting the compressor. After the shielding time, if the low-voltage switch contact is continuously connected for 30 seconds, the compressor will stop and alarm, the alarm relay will be activated, and the buzzer will sound to remind. The display screen will flash and display E01. The fault code must be powered off to be eliminated.

3. After 0.2 seconds of temperature sensor malfunction, the compressor stops. The alarm relay is engaged, and at the same time, the buzzer sounds a reminder. The display screen flashes and shows E03. After the fault is restored, it will automatically disappear. During the fault period, high and low voltage faults are detected normally.

When the alarm relay operates in reverse mode (R set to 01), in any case, after powering off and reconnecting, the normal working mode and alarm mode of the relay will be reversed.

4、 Other indicators:

1. Relay contact capacity: 250VAC 5A (resistive), compressor relay is normally open, and alarm relay is a group of normally open and closed.

2. Temperature display resolution: 1 ℃.

3. Temperature measurement allowable error: 1 ℃.

4. Environmental temperature range: -25 ℃ -+75 ℃.

5、 Wiring diagram

1. 2. Compressor: Switching output

3, 4, 5 alarm outputs: 3 common points, 4 normally closed, 5 normally open

Type A: 6, 7, 8 protection inputs: 6 low-voltage connection, 8 high-voltage connection, 6/8 and 7 connected to AC220V

Type B: 6, 7, 8 protection inputs: 6 low-voltage connection, 8 high-voltage connection, 6/8 and 7 connected to AC15V

C type: 6, 7, 8 protection inputs: 6 low-voltage connection, 8 high-voltage connection, 6/8 and 7 contact signals

9, 10 power input: AC/DC 15V input

11, 12 sensor inputs: NTC10K

6、 Panel installation hole 163mm * 35.2mm (tolerance: 0.05)