AQ25042B/U
Aquatrol Boiler Control
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Boiler Control For Zoned Hydronic Systems, 4 Zones, 2 Wire.

Features

Controls One Boiler Loop
Zone Synchronization Through Zone Of Greatest Demand Control
Use With Digital non-Communicating Thermostats Or AQ1000 2-Wire Polarity Insensitive Communicating Thermostats
Automated Test Feature For Quick Start-Up And Simplified Troubleshooting
Boiler Freeze Protection (In The Event Of Network Communication Failure)
Boiler Short Cycling Protection, Post Surge, And Shock Prevention From Cold Water Returning To Boiler
Integral 38 VA Transformer With Self Resetting Electronic Fuse