AFTC-STC-9200. REF.Temperature Controller.

The AFTC-STC-9200 is a professional-grade microcomputer temperature controller specifically designed for oversized freezer rooms and complex refrigeration systems. It is a “double sensor” unit, meaning it uses two independent probes to monitor both the storage room temperature and the evaporator temperature for optimized defrosting and fan control.
Technical Specifications
  • Measurement & Control Range: -50.0°C to +50.0°C.
  • Accuracy: ±1°C (between -40°C and 50°C).
  • Power Supply: 220VAC ±10%, 50/60Hz.
  • Relay Output Capacity (3 Relays):
    • Refrigeration (Compressor): 8A or 10A / 220VAC.
    • Defrost: 8A or 10A / 220VAC.
    • Evaporator Fan: 8A or 10A / 220VAC.
  • Sensors: Two waterproof NTC probes (10KΩ/25°C), typically 2 meters long.
Key Features & Functions
  • Triple Load Control: Independently manages the compressor, defrosting unit, and evaporator fan.
  • Advanced Defrosting: Controls defrost cycles by both time and temperature. It terminates defrosting once the evaporator reaches a set “stop temperature” (parameter F8) to prevent unnecessary heating.
  • Intelligent Fan Management: Offers multiple fan modes, such as continuous operation, starting/stopping with the compressor, or temperature-controlled starts.
  • Menu Separation: Features a “User Menu” for basic temperature adjustments and a password-protected “Administrator Menu” for deep system configuration.
  • Copy-Key Support: Includes a Mini-USB port for rapid batch programming across multiple units.
Wiring Overview
  • Port 1: Common live wiring for loads.
  • Port 2: Compressor relay output.
  • Port 3: Defrosting relay output.
  • Port 4: Evaporator Fan relay output.
  • Ports 5 & 6: Power supply input (220VAC).
  • Port 7: Storage room temperature sensor.
  • Port 8: Common point (Co-point) for both sensors.
  • Port 9: Evaporator/Defrost temperature sensor.
Basic Operation Guide
  • Unlock Keypad: Press the Up (▲) and Down (▼) keys simultaneously for 10 seconds until it unfreezes.
  • Adjust Target Temp: Press and hold SET for 2 seconds, use the arrows to adjust, then press SET again to save.
  • Manual Defrost: Press and hold the Down (▼) key (or designated defrost key) for 3–5 seconds.
  • Error Codes: E1 indicates a room sensor failure; E2 indicates an evaporator sensor failure.
  • Supplier Information
    This specific branded model is supplied by Ayub First Trading Company, which has showrooms across Saudi Arabia including Riyadh, Dammam, Jeddah, and Khobar.
    • Contact Number: +966 56 004 2170.
Description

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