SZ-CRC-1100T | Sub-Zero Cold Room Controller with RS-485, LCD + LED Display & RTC

🔹 Product Summary

The Sub-Zero SZ-CRC-1100T is a powerful and advanced panel-mount controller designed for freezers and low (negative) temperature cold rooms. Equipped with LCD + LED display, RS-485 Modbus communication, and an inbuilt real-time clock (RTC), it offers superior control, monitoring, and protection. With advanced features like time/temperature-based defrost, compressor current protection, quick freeze mode, and fault logging, it ensures reliable cold storage management.

🔹 Key Features

• Panel-mount design with 96 × 96 mm housing and 92 × 92 mm cutout

• LCD + LED dual display for real-time monitoring

• Touch-sensitive keypad for easy operation

• Time, temperature & RTC-based defrost options (Auto/Manual)

• Energy-saving mode for optimized operation

• Quick Freeze mode for faster cooling

• Compressor current measurement & protection (20A/50A)

• Heater fault detection & protection

• Door open & auxiliary fault inputs

• Internal buzzer for alerts

• Last 10 fault records with date & timestamp

• RS-485 Modbus RTU communication for integration

• Settable resolution: 0.1°C or 1°C

• Temperature range: –50°C to +50°C

🔹 Applications

• Freezers and low-temperature cold rooms

• Negative temperature storage for pharma & food

• Cold chain logistics

• Industrial & commercial refrigeration

🔹 Product Benefits

• Ensures precise temperature control down to –50°C

• Enhances safety with compressor, heater & fault protection

• Saves time and energy with RTC-based defrost scheduling

• Provides traceability with last 10 fault records

• Easy integration with RS-485 Modbus connectivity

• Improves usability with LCD + LED dual display

🔹 FAQ

Q1. What is the temperature range of SZ-CRC-1100T?
👉 –50°C to +50°C with resolution 0.1°C or 1°C (settable).

Q2. Does it support communication with BMS/SCADA?
👉 Yes, it has RS-485 Modbus RTU communication.

Q3. How many outputs are available?
👉 Compressor (5A), Condenser (10A), Evaporator (10A), Heater (5A), Alarm (5A).

Q4. What protection features are included?
👉 Compressor current protection, heater fault detection, door fault input, buzzer alarms.

Q5. What makes it suitable for low-temperature cold rooms?
👉 Features like quick freeze mode, RTC defrost, high/low temperature logs, and robust compressor protection make it ideal.