HVACopediaFlameworks · Gas fireplace · Ignition
Standing-pilot lighting (manual and millivolt valves)
What happens, in order
- Turn gas cock knob to OFF and set wall switch or thermostat to off or lowest
- Wait 5 minutes (10 minutes with LP) for gas to clear
- Turn the knob to PILOT, press and hold it, and light the pilot
- Hold the knob for 2 minutes, then release; if the pilot goes out, repeat to let air out of the pilot line
- Turn the knob to ON; manual models burn continuously, millivolt models follow the switch or thermostat
- To get from PILOT to OFF the knob must be pushed in first
- If the pilot lights without pressing the knob, replace the valve
Timings and thresholds
| Item | Value |
|---|---|
| Gas clear-out wait | 5 min natural gas / 10 min LP |
| Hold knob after lighting | 2 min |
| Pilot flame coverage | Upper 3/8 in of the thermocouple/thermopile tip |
Applies to: Flameworks millivolt and 3-volt gas valves
Models
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Source: Flameworks gas valve installation manual v3, Operating and Service instructions. Written in our own words; timings can differ by model and software version, so check the manual for your exact unit.
For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.