Temperature Controller

ECS-974T Digital Temperature Controller with WIFI

Keywords: digital temperature controller, ECS-974T thermostat, defrost fan controller, Smart Life wifi temperature controller, refrigerator thermostat

Digital refrigeration temperature controller with compressor, defrost and fan outputs, a -50°C to 99°C measuring and controlling range and Smart Life WiFi remote monitoring.

The ECS-974T runs a complete refrigeration cycle on its own: compressor output for cooling, defrost output with settable cycle, duration and stop temperature, and a fan output with its own run modes and delays. Two probes (cabinet and evaporator) keep the readings honest, the P0–P32 parameter menu is protected by an administrator password, and a copy card copies one unit's settings to the rest of the batch.

ECS-974T refrigeration temperature controller — compressor, defrost and fan outputs, IP65 front panel, 100–240 V AC

Cooling, Defrost and Fan — Controlled Separately

Cooling, defrosting and air circulation are three different jobs, and each one gets its own output, its own setpoints and its own delays.

Compressor output — starts on the on-temperature, stops on the off-temperature, with start / stop delays (OD / dOF).
   Defrost output — electric, reverse cycle (hot gas) or free defrost; interval and duration settable; manual defrost with one key.
   Fan output — FC0 (runs on probe reading) or FC1 (runs with the compressor).
   Alarms — HAL / LAL high and low cabinet temperature with independent differential and delay; E1 / E2 probe faults.

Key Features

1.  Refrigeration, Defrost and Fan Outputs: Compressor output for refrigeration, defrost output for automatic or manual defrost, and fan output for air circulation — flexible configuration for various temperature control needs.

2.  Wide Temperature Measurement Range: Stable and accurate control across a wide temperature range (see "Technical Specifications" below for the exact figures).

3.  Bright LED Display: Displays real-time current temperature and setpoint values; clear and visible readings even in low-light conditions.

4.  Safety and Protection Functions: Compressor delay protection to prolong compressor life; over-temperature alarms to prevent system damage.

5.  Easy Programming and Operation: Simple button interface for quick setup and adjustments; supports manual calibration for precise system tuning.

6.  Wi-Fi Remote Control: 2.4G Wi-Fi connection for remote check and control via the Smart Life app.

7.  Copy Card Support: Parameters can be uploaded to / downloaded from a copy card for quick batch setting.

Built for Real Installations

Panel-mount in a 71 × 29 mm cut-out, with two probes and a wiring diagram printed on the housing — the three things an installer actually works with.

LED display, 0.1°C resolution, with a status column for cooling, defrost, fan and WiFi.

Key pad for set temperature, parameter menu and one-key defrost; keyboard lock to stop accidental changes.

Wiring diagram printed on the housing: power, compressor, defrost, fan and the two probe inputs.

Technical Specifications

Applications

1.  Commercial Refrigeration Systems: Ensure consistent cooling.

2.  Aquariums and Fish Tanks: Maintain ideal water temperatures.

3.  Incubators: Provide stable environments for hatching.

4.  Greenhouses: Regulate temperatures for optimal plant growth.

5.  HVAC Systems: Improve refrigeration efficiency in residential and commercial buildings.

6.  Food Processing and Storage: Safeguard food safety and quality.