SZ-7590-P | Sub-Zero Bus A/C Temperature Controller with 3 Fan Speeds & Cooling Output

🔹 Product Summary

The Sub-Zero SZ-7590-P is a specialized temperature controller designed for bus and automotive air conditioning systems. With support for three fan speeds and a dedicated cooling output, it ensures precise temperature management and passenger comfort in transit vehicles. Its compact panel-mount housing and compatibility with 12V or 24V DC supply make it ideal for integration into mobile HVAC systems.

🔹 Key Features

• Designed for bus air conditioning applications

• Three fan speeds (Low, Medium, High) + one cooling output

• Cooling mode enable/disable option

• Supports two NTC probe inputs

• Wide operating temperature range: 0°C to 70°C

• 7-segment LED display (2 × 14.2 mm) for clear readings

• Power supply: 12VDC or 24VDC

• Output rating: 100 mA (per output)

• Compact panel-mount housing (71 × 29 mm cutout)

🔹 Applications

• Bus and coach air conditioning systems

• Automotive HVAC systems

• Public transport vehicles requiring passenger comfort

• Specialized mobile cooling units

🔹 Product Benefits

• Ensures efficient passenger comfort with multi-speed fan control

• Compact and easy-to-install panel-mount design

• Compatible with both 12V & 24V systems

• Energy-efficient with direct DC outputs

• Reliable performance in demanding mobile environments

🔹 FAQ

Q1. What voltage supply does SZ-7590-P support?
👉 It works with 12VDC or 24VDC systems.

Q2. How many fan speeds are supported?
👉 The controller supports three fan speeds – Low, Medium & High.

Q3. What type of probes can be used?
👉 It supports 2 NTC probe inputs.

Q4. What is the operating temperature range?
👉 From 0°C to 70°C with 1°C resolution.

Q5. What is the mounting type?
👉 Panel mount with standard 71 × 29 mm cutout.