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.
- 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
Available Models
Ordering Information
| MODEL | UPC | TYPE | WIRE LEADS | VOLTS | AMPS | TEMP. RANGE | FAN ONLY SWITCH | Purchase |
|---|---|---|---|---|---|---|---|---|
| HW120 | 19048 | Electronic Line Voltage | 4 Wire | 120 | 12.5 | 40F-95F | NO | Buy Now |
| HWP120 | 19047 | 7 Day Independent Electronic Programmable | 4 Wire | 120 | 12.5 | 44F-93F | NO | Buy Now |
| HWPT120 | 19049 | 7 Day Ind. Elec. Prog. w/ 15 min. pump timer every 24 hrs. | 4 Wire | 120 | 12.5 | 44F-93F | NO | Buy Now |
| HW120-FS | 70010 | Electronic Line Voltage | 4 Wire | 120 | 15 | 40F-95F | YES | |
| HWP120-FS | 70011 | 7 Day Independent Electronic Programmable | 4 Wire | 120 | 15 | 44F-93F | YES |
Engineering Specs
SPECIFICATIONS
Purpose of Control: Operating Control
Construction of Control: Independently Mounted for Junction Box Mounting
Temperature Range: 40° to 95°F (HW)
Temperature Default: Program Temperatures
Display Format: Liquid Crystal Display (LCD)
Display Size: Large Format
Simple Rate: Every 60 Seconds
Delay ON or OFF 1st Relay: 3 minutes
Delay ON 2nd Relay: 1 minute from 1st Relay
Illumination: Blue LED
Heat Indicator: Red LED
Type 1 Action
Pollution Degree: 2
Impulse Voltage: 2500V
Relays Rating: 12.5A Resistive or 1/2HP
Accuracy: ± 1.2°F
Total Combined Load: 15 Amps Max Resistive or Inductive with Both Relays Energized.
Maximum Watts: Total Combined Load not to Exceed 1800 Watts
Minimum Watts: None
Power Supply: 120V
Downloads
Related Products
HWP120 TWO-CIRCUIT
- 12.5A Max / 120volts
- range: 44°F to 93°F (7°C to 34°C)
Intended to be used as a 2 circuit thermostat controlling a circulation pump and a fan on a hydronic coil heating system.
HW120-FS TWO-CIRCUIT
- 15A max / 120volts / Fan Only Switch
- range: 40°F to 95°F (4°C to 35°C)
Intended for use as a 2 circuit thermostat controlling a circulation pump and fan on a hydronic coil heating system.
HWP120-FS TWO-CIRCUIT
- 15A max / 120volts / Fan Only Switch
- range: 44°F to 93°F (7°C to 34°C)
Intended to be used as a 2 circuit thermostat controlling a circulation pump and a fan on a hydronic coil heating system.
HWPT120 TWO-CIRCUIT
- 12.5A Max / 120volts
- range: 44°F to 93°F (7°C to 34°C)
Intended to be used as a 2 circuit thermostat controlling a circulation pump and fan on a hydronic coil heating system. 15 min. pump timer every 24 hrs.