I have a 2011 Pinnacle, and I retrofitted a residential refrigerator three years ago. It has been running full time from a 1000 watt Xantrex sine wave inverter since I installed it. The refrigerator always sees clean constant power, even when hooking up and unhooking at campsites. No transfer switch, the power for the refrigerator comes only from the inverter.
David and Denise, fulltiming since 2011.
Pinnacle 36RETS, Samsung RF197 refer, 17.5 wheels/H-rated tires, Mor-Ryde pinbox, wet bolts and X-Factor, Monroe shocks, TireMinder TPMS.
2013 GMC 3500HD DRW 2wd, AirLift rear airbags, Curt Q20, 46 gal ATI transfer tank, Yamaha 3000iS in pickup bed