Chiller Temperature Controller – T502 (12V AC)
LASER PARTS | WATER COOLING & CHILLERS
Chiller Temperature Controller – T502 (12V AC)
The T502 is a digital temperature controller designed for use in compatible older-style S&A chiller systems. It provides temperature monitoring and control through a digital display and four-button interface.
Featuring Up/Down adjustment buttons on the left and RST/SET buttons on the right, the T502 offers convenient access to temperature settings and controller functions. Its compact panel-mount design and 12V AC power requirement make it a replacement option for systems using the matching T502 configuration.
Key Features
- Digital temperature display for monitoring chiller operation
- 12V AC operating voltage
- Up/Down adjustment buttons on the left side
- RST and SET function buttons on the right side
- Panel-mount housing with retaining clips
- Rear terminal connections with labeled wiring diagram
- Designed for compatible older-style chiller systems
Product Specifications
| Model | T502 |
| Manufacturer | S&A / Teyu |
| Power Supply | 12V AC |
| Display | Digital temperature display |
| Control Interface | Four-button interface |
| Left-Side Controls | Up / Down |
| Right-Side Controls | RST / SET |
| Mounting Style | Panel mount with retaining clips |
| Electrical Connections | 12-position rear terminal block |
Compatibility & Installation
This controller is intended as a replacement for compatible chiller systems equipped with the T502 temperature controller.
Before ordering, verify the model number, 12V AC power requirement, button arrangement, and rear terminal configuration of your existing controller. The T502 should not be assumed interchangeable with other temperature controller models. Installation should be performed with electrical power disconnected and wiring matched to the appropriate connection diagram.
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