1. exhaust temperature of Inventer & fixed COMP monitor
2. Outdoor coil;outdoor condition;temperature of all return gas monitor
3. High/low pressure protect
4. Outdoor COMP;FAN;4-WY;EXV control
5. Adjusted frequency to 120HZ while connecting IDU & module board
With over 16 years' experience in AC & refrigeration markets, Vestar International is known as one of the professional China manufacturers of controller-odu. Our products made in China are high in quality and reliable in performance. Offering customized service, we warmly welcome you to wholesale our quality products in stock.