Haswill Electronics STC-8080A+ Thermostat

STC-8080A defrosting thermostat with one sensor and two output relays to connect and control the refrigeration and the defrosting unit, alarm once the temperature is over your preset point.
Wiring Diagram


- Normally Closed point
- Live wiring Input Co-Point
- Compressor
- Defrosting
This unit does not output AC electricity; hence you have to wire all live and null wires to each port; you may use the jumper wire conveniently.

Configuration
The aimed temperature range was defined from “F1” to f2”; you need to set both.
- ≥ F1, refrigeration starts.
- ≤ F2, refrigeration ends.
- Step1: Hold the
key for 3s, and the code F1 will appear. - Step2: Press the
or
keys to get the aim function you want to update; - Step3: Press the
key to check the existing value; Hold the
key meanwhile press the
or
key to change the value; - Step4: Release all keys once it reaches your aim value; Repeat operation from Step 2 / 3 / 4 to adjust other parameters;
- Step5: After configuring all values, press the
key to save data and back to normal monitor status.
Attention: the modified value will be saved automatically and back to normal status if without operation in 30 seconds.
Open the Forced Refrigeration
- Hold the
key for 3s to start the forced-defrosting mode; do it again to stop defrosting.
More Tips: This unit controls the defrosting only by the time, but not by the evaporator temperature like STC-9100
This is not a step-by-step user manual; It just shows the key points. The new user should read the Full-Content Version User Manual

Haswill Electronics
STC-8080A+ Thermostat
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