SZ-7552T Temperature Controller | Dual Compressor Control for Chillers
The SZ-7552T Temperature Controller is designed for dual compressor chillers, offering precise 0.1°C control, load sharing, sequential or independent operation, compressor fault monitoring, and run hour equalization.
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Product Summary
The SZ-7552T Temperature Controller is a compact, intelligent solution for chillers and dual-compressor refrigeration systems. With features like independent set points, sequential or independent modes, load sharing, and cycling control, it ensures reliable temperature management and balanced compressor usage.
Key Features
Dual compressor control (Compressor 1 & 2)
Temperature range: 0.0°C to 50.0°C (0.1°C or 1°C settable resolution)
Individual set points, differentials, and time delays for each compressor
Sequential or independent compressor operation modes
Run hour equalization & cycling to avoid overloading one compressor
Load sharing between compressors for efficiency
Delay between compressor ON/OFF to prevent surge
Digital inputs for compressor fault detection (Compressor 1 & 2)
Auto operation in case of sensor failure/error
High & low temperature event logs
Cooling & heating mode selection
User-friendly touch-sensitive keypad
Compact panel mount design (78 × 36 × 80 mm)
Applications
Chillers (HVAC and industrial)
Dual compressor refrigeration systems
Cold storage with load sharing requirements
Process cooling plants
Commercial refrigeration units
Product Benefits
Reliable performance – balanced compressor cycling extends equipment life
Energy efficiency – load sharing and smart delay reduce energy usage
Enhanced safety – fault detection prevents compressor damage
Precise control – 0.1°C resolution for accurate temperature management
User-friendly – easy configuration with touch keypad and digital display
FAQs
Q1. What is the temperature range supported?
0.0°C to 50.0°C with 0.1°C or 1°C settable resolution.
Q2. Can it control two compressors independently?
Yes, it supports both sequential and independent operation modes.
Q3. How does it prevent compressor overload?
It uses cycling, run hour equalization, and load sharing features.
Q4. Is it suitable for chillers?
Yes, it is specifically designed for chiller and dual-compressor systems.
