HW-FS Series 2 Circuit Electronic Line Voltage Hydronic Thermostat (120V, 15A)

The HW-FS (hot water) Series with Fan Only Switch is intended for use as a 2 circuit thermostat controlling a circuit pump and fan on a hydronic coil heating system, though it could be used when needing a 2 circuit control with 1 minute delay on the second circuit. This control solves the historic problem of using a standard 22 Amp bi-metal heating thermostat on a hydronic system which require high Amp loads to be accurate. Without a load they will not shut off properly, continuing to circulate hot water when not needed. This control positively controls both circuits creating energy savings and superior comfort control, while providing excellent hydronic control.

The HW-FS  includes a Fan Only switch, allowing for fan only cooling operation in the summer months.

Features:

• Accuracy: ± 1.2°F
• Total Combined Load: 15 Amps Max Resistive or Inductive with Both Relays Energized. (120V)
• Range: 40°F to 95°F (4°C to 35°C)
• Includes Fan Only Switch For Summer Cooling Operation
• Save Up to 15% on Your Heating Costs
• Electronic Temperature Sensing is The Most Accurate Technology
• 3 Minute Cycle Rate Reduces Temperature Swings & Increases Comfort at All Control Settings
• 2 Circuits, 1 Minute Delay on 2nd Circuit
• LCD Backlight Display with Temperature
• Imported to King Specifications
• cUlLus Approved for US and Canada
• 1-Year Limited Warranty