User Manual of STC-9200 Thermostat

1. Package

• Controller: 1PCS
• Sensor: 2PCS
• Clips: 2PCS
• Manual: 1 PCS
• Waterproof Cover: 1PCS

2. Specification

• Input Power: 220V AC ± 10% 50/60HZ; (12/24/48/110V Option)
• Maximum current: 8A (Default) under 250V AC
• Thermistor / Sensor: NTC, 25°C/10 KΩ, the sensor cable 200cm
• Protection Class: IP65 to the front panel
• Storage: -10°C~60°C, RH<90%, without condensation
• Temperature Range: Measurable: -50.0°C ~ +50.0°C; Controllable: -50.0°C~+50.0°C
• Resolution: 0.1°C
• Accuracy: ± 1°C from -40°C to +50°C; ± 2°C in other range
• Power Consumption: <3W

3. Environmental Information

The package's material is 100% recyclable. Please dispose of it through specialized recyclers.

The electro components can be recycled if disassembled for specialized companies. Please do not burn or throw the controllers in domestic garbage. Observe the respective law in your region concerning the environmentally responsible manner of disposing of its devices.

4. Appearance & Operation

4.1. Front Panel & Operation

Under normal status, the screen shows room sensor temp.

• A. Hold the SET for 3s to enter/exit the user setting interface to check and modify the set-point and the hysteresis here.
• B. Hold the ▲ key and the ▼ key at the same time for 10s to lock/unlock the admin menu: OFF = unlock, editable; ON = locked, only can check the value, not editable.
• C. Hold the SET and the ▼ keys for 10s to enter admin interface; Press the SET to check current data, and press the ▲ or ▼ key to change the data; Press the SET again to save data and back to menu list; If without operated in 10s, the new data will be auto-saved.
• D. Hold the ▲ for 3s to check the defrost sensor temp.
• E. Hold the ▼ for 3s to trigger the forced refrigeration mode manually (conditions in 5.3); do it again to quit.
• F. Hold the SET for 3s to trigger the forced defrosting mode manually (conditions in 5.2); do it again to enter defrosting water dripping status.

4.2. Indicator / Character in Display

4.3. Dimensions & Installation

Mount size: 71*29*85 mm (W*H*D); Detach the slide fasteners, put the controller into the hole, and wire it. Install the fasteners and the waterproof cover.

Diagram Description: A visual representation showing the dimensions of the STC-9200 controller with measurements for width (75mm), height (71mm), depth (34mm), and mounting hole dimensions (29mm x 77mm).

4.4. Wiring Diagram

Diagram Description: A wiring diagram for the STC-9200 controller. It shows connections for Live, Neutral/Null, Earth, Compressor Power Supply Input, Compressor, Defrosting, Fan, Room Sensor, Defrosting Sensor, and Co-point of Sensors. Terminal numbers 1 through 9 are indicated.

• A. 10K NTC sensor, need not distinguish + or -.
• B. The input voltage must be within the voltage value marked in the diagram ±10% value.
• C. Suggest Load Power ≤ Voltage*Max current of Relay Factor

4.5. Copykey (Optional)

A. Upload to Controller

1. Insert the Copykey, Press the ▼ key, the display shows "UPL";
2. Now Press the SET key to upload data will show "End" once finished;
3. Shut down the controller and then pull out the Copykey.

B. Download from Controller

1. Assure controller being shut down and insert the Copykey, then starting up
2. The controller will scan the Copykey and download data automatically, shows "dol" when downloading, and shows "End" once finished.
3. Restart the controller; it will work according to the new data.

Attention:

• Part of the parameters will be executed in the next cycle; please power off the controller and power back to start a new cycle for running by the new data without a wait.
• If a parameter in the Copykey exists error or in the wrong format, the display shows Err.

5. Configurations

5.1. Code and Function Menu

Hold the SET + ▲ keys at the same time for 10s to enter the Admin Interface; The codes SEE and HY (FO 1 and F02) are user menu; others are admin menu, ref 4.1 A & C

5.2. When will the Defrosting Start / Stop?

Defrost relay will close/on when reaching all the below conditions:

• The time should later than: the compressor last stops moment + AC/FOS if the defrosting Mode was thermal air / Hot Gas (EDF/F 10 = HEG).
• The defrost sensor temperature < Defrost stop temperature (in dEE/FB).
• Time passed the defrosting cycle time (dF/F06) or forced defrosting beginning.

Defrost relay will open/off when reaching any one of the below conditions:

• The defrost sensor temperature > Defrost stop temperature (in dEE/FB).
• Passed the defrosting Lasting Time (dF/F07).

5.3. When will the Compressor Start / Stop?

The room temperature was supposed to keep at the range from "SEE/FO1" to "SEE+HY (FO1+F02)."

First, Time Conditions

• A. When Fod/F 15 > 0s, the time should be later than: The moment of the compressor recent stops + AC/FOS.
• B. When Fod/F 15 < 0s (the fan startup earlier than the compressor), the time later than: The moment of the compressor recent stops + AC/FOS, and The fan starts moment + Fod/F 15.

A. If EdF/F10 = EL/O (like an electric heating wire wound around the evaporator)

B. If EdF/F10 = HEG/1 (Hot Gas from the compressor Reverse Rotary), 1 more status than A

5.4. Alarming & Error Code

Once alarming, the readout flashing and buzzer screaming press any key to stop the buzzer ticktack, but the error code in the display will not disappear until all errors have been fixed.

5.5. When will the Fan Work/Stop?

Please check the conditions from Fod/F 15 & FnC/F 13 in the menu list.

Video on YouTube: Haswill Electronics https://www.thermo-hygro.com

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