OLYCAT STC-9200 Digital Temperature Controller Thermostat User Guide
- June 5, 2024
- OLYCAT
Table of Contents
Quick Start Guide
(Version 21.08.02GEN)
STC-9200 digital temperature controller controls three loads: the refrigeration device, the defrosting unit, and the Evaporator Fan; Typically suited to an oversized freezer room.
Wiring Diagram
Set the target temperature
The room temperature was supposed to keep at the range from
You can set them in the user interface and the Admin Interface; below is the 2
nd method.
Step 1 : enter the Admin Interface by hold the [SET] key and the [ ]
key at the same time for 10s; you will see the code “F1” (“SET” ).
Step 2: Press the [SET] key to check current value, and press the
key or the key to change the F1 value;
Step 3: Press the [SET] key to save the new data, and back to the
menu list, you will see the code “F1” (“SET”) again.
Step 4: Switch to the “ F2″ (“HY”) code by press the key.
Repeat the above 2-4 steps to update all the code you want to.
At last : Just leave the unit alone; it will auto quit from setting mode
back to normal status in 10s.
- F1 (SET): SP (Temperature Set-Point)
- F2 (HY): Temperature Hysteresis / Return Difference
- F3 (US): Upper limit for SP
- F4 (LS): Lower limit for SP
- F5 (AC): Delay Time for the Compressor and
Delay time for defrosting if it was Hot Gas mode F10 = 1 (TDF = HTG)
If you found the “F1” (SET) value cannot be modified to the value you need, please adjust the F3 and F4 (US and LS ), which are the limitation for F1 (SET).
Configure the Defrosting
This unit controls the defrosting by Time and Temperature.
Temperature Condition: the evaporation sensor temperature is lower than the
preset “defrosting Stop temperature” F8 (DTE), which is a significant value to
prevent over defrost.
Time Condition 1: the real-time passes the preset interval time F6
(IDF), a regular parameter for almost all defrosting thermostats.
Time Condition 2: If the “defrosting method” you take is the hot gas from
the compressor reverse rotary when F10 = 1 (TDF = HTG), it will
count the compressor’s last stops moment plus F5 (ac), which is a
protective value to avoid the compressor frequently startup and stops.
The operates method is just like page 1 shows;
6) F6 (IDF): Defrosting Cycle / Interval Time
7) F7 (ADF): Defrosting Lasting/Running Time
8) F8 (DTE): Defrosting Stop Temperature
9) F9 (FDT) : Defrosting Water Dripping Time
10) F10 (TDF): Defrosting Mode:
• 0 (EL): Electric-Heating.
• 1 (HTG ): Hot Gas from the compressor.
11) F11 (DCT) : Count mode of defrost cycle:
• 0 (RT): Cumulative time from the controller power on.
• 1 (COH) : Cumulative time of the compressor working.
12) F12 (DFD) : Display mode when defrosting:
A. 0 (RT): Shows the room sensor temperature display.
B. 1 (IT) : Shows the evaporator sensor temp. (continue showing 10 minutes
once defrosting over)
Set the Evaporation Fan?
Check the F15 (FOD) value before others
- F15 (FOD): Time delay seconds for the Fan
A. < 0: in this case, f15 (FOD) is the period for the Fan starts earlier than the compressor starts, Fan stops if defrosting begins.
B. ≥ 0 : Fan was controller by F13 (FMC). - F13: Fan output modes when f15 (FOD) ≥ 0
A. 0 (CTR) : Fan Starts by F14 (FOT), Stop by F16 (FST).
B. 1 (O-N): continuous working except defrosting begins.
C. 2 (C-N): in this case, F15 (FOD) is the time for the Fan to start later than the compressor; the Fan stops if defrosting begins. - F14 (FOT): Defrost sensor Temp for Fan Starts
- F16 (FST) : Defrost sensor Temp for Fan Stops
Set the Alarm
The alarm function is based on the room sensor temperature, and the Alarm also
works if the evaporator sensor is broken.
17) F17 (ALU) : Upper Temperature of the Room sensor to Trigger Alarm
18) F18 (ALL) : Lower Temperature of the Room sensor to Trigger Alarm
19) F19 (ALD) : Time delay of the Room sensor to Trigger Alarm
20) F20 (OT) : Temperature Calibration = Real Temperature – Measured
Temperature.
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-9200 Defrost Fan Controller
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