PREVAC
MIC has been manufacturing PREVAC for over 30 years. Originally designed for R-11 low-pressure chillers, and continued on R-123 chillers, it was an industry leading add-on for Trane, York, and Carrier units.
PREVAC Stationary System
The PREVAC System enhances the operation of low-pressure chillers using refrigerants R-1233zd(E), R-123, R-514a and R11. PREVAC prevents air & moisture infiltration in stand-by idle chillers, eliminates surging on start-ups, and prevents acid damage and refrigerant release. It also eliminates electrical code violations during servicing, by eliminating the need for temporary high voltage and temporary water hose connections. The PREVAC system provides 1/100 of 0.0 PSI control for minor repairs and features a high pressure alarm before the bursting disc is activated. This system complies with Ashrae 147, and enables safe and efficient chiller servicing.
The stationary PREVAC system provides:
- “Pressure Seal” Mode 0.00psig Fixed Set Point
- “Leak Test” Mode 0.00 to 6.00psig Adjustable Setting
- 1/100 psi Accuracy
- Proportional Control
- Pressure Activated and/or Electrically Interlocked
- Water Heating Vessel
- Fully Temperature Controlled
- 20kW 480v or 12kW, 240v Heating Capacity
- Stainless Steel Housing for Heaters
- 350 psi Pressure Rating
- 30 gpm Pump
- High Pressure Warning & Disconnect
- 30 amp Circuit Breaker
- Audible and Visual Alarms
- High Pressure Trip
- BAS Interface
Purchase Price: $6,250 Rental Price: $950/yr
Maximize the Lifetime of Your Equipment
Low-pressure chillers are expensive and integral pieces of equipment in a building's operation. Why not get the most out of them? And have them run better? PREVAC is a cost saving insurance policy for you as a building owner.
30,000 Units Installed Worldwide
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PREVAC is trusted by some of the world's biggest companies. Click here to see a list of some of our clients.
Our Partners (including Independent Contractors)
