Not knowing your particular RV model, I personally wouldn't know. If you have the Suburban brand water heater, you might could use this FAQ as a reference and check to see for yourself if nobody can answer.
Dan-Retired California Firefighter/EMT
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package