H1657 Gas Valve Remote Ready Natural Gas SIT 820 Series

The Lennox IHP H1657 Gas Valve is a SIT Controls Series 820 Nova Millivolt Natural Gas valve.

This H1657 Gas Valve is a Manual Gas Control valve for use with Natural Gas NG and is remote ready and can be controlled with a millivolt wall switch or similar millivolt system

This IHP Lennox Sit Controls Gas valve model has the following specifications.

• Split-system millivolt control natural gas valve for use in vented appliances.
• HI/LO burner adjustment with manually operated knob
• Minimum voltage 145mV Coil resistance 2.25±0.5 Thermo-Electric Unit Hold-in current less than 285Ma
• Drop-out current Greater than 125mA with coil resistance 0.018± 0.003
• Gas type Natural Gas HI/LO action Manual Pressure set-point 3.5” w.c. ± 0.3
• Range of adjustment 3.5” w.c. -1.6” w.c. Set at 30K btu/hr
• Thermocouple connection 11/32 ASA-DNC
• Natural Gas Inlet 3/8 in. NPT
• Natural Gas Outlet 3/8 in. NPT
• Maximum natural gas inlet pressure 1/2 PSIG Ambient operating
• temperature 32° to 175° F
• Maximum @ 1 in. w.c. pressure drop 100,000 BTU per hour Regulation capacity 5,000 to 195,000 BTU AP per hour