3
Gas connections 3/8” NPT or 1/2” NPT
Pilot connections 7/16” UNEF
Installation position Multi-position, Never Upside down
Gas families Liquefied Petroleum Gas or Natural Gas
Maximum gas inlet pressure 1/2 PSI
Maximum outlet pressure setting range 3.5”~6” w.c. for NG and 8”~12” w.c. for LPG
Working temperature range 32 ~ 175ºF (optional 32 ~ 225ºF)
Pressure regulator Servo regulated
APPLICATION
The 820 Nova Millivolt combination gas control is an On/Off
gas valve suitable for use with gas fireplaces, gas log sets,
gas space heaters and other gas heating equipment.
Millivolt control permits complete regulation of the
appliance, without requiring main supply voltage.
- The True Millivolt version utilizes a thermo-generator to
power the main operator and the safety valve in B-vent
applications.
- The Millivolt Plus is typically used in direct-vent
MAIN FEATURES
Three position control knob: “OFF/ PILOT / ON” (MS)
Thermo-electric flame failure device with re-start interlock (GM)
Servo controlled Pressure Regulator (PR)
Manual or electronic “HI/LO” adjustment (optional) (MA)
Millivolt Operator (EV)
Pilot outlet with flow adjustment screw (RQ)
Inlet and pilot filters (FL)
Inlet and outlet pressure test ports
applications wherethe main operator is powered by a thermo-generator and the safety
valve is powered by a thermocouple with 11/32” thermocouple connection to the safety magnet.
- The Millivolt Plus may, in some instances, also be used in vent free applications that require a
special oxygen depletion system (ODS) pilot. Valves for this application use a M8 thread for the
thermocouple connection to the safety magnet.
SPECIFICATIONS
TECHNICAL DATA
USE AND INSTALLATION INSTRUCTIONS
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