Cavagna 52-A-890-0010 RV Automatic Changeover LP Regulator – 160,000 BTU/hr

Overview

The Cavagna 52-A-890-0010 integrates first- and second-stage regulation with an automatic changeover head for dual-cylinder RV setups. When the selected service cylinder runs out, it seamlessly switches to the reserve side and flips the indicator so you know it’s time to swap bottles.

Key Features

• Automatic changeover: Prevents flameouts by pulling from the reserve cylinder when service cylinder empties.
• Two-stage regulation: Smooths inlet pressure and maintains a stable outlet set to 11" WC (< 1/2 PSI).
• Visible indicator: Window shifts from green to red when service cylinder is empty/low.
• Safety built in: Over-pressure protection minimizes emissions; excess-flow device restricts flow during a downstream leak.
• Rugged construction: Zamak alloy 13 EN 1774 with durable metallic grey finish; UL listed.
• RV-ready install: Manual selector lever, mounting hardware included.

Typical Uses

Feeds low-pressure LP gas to furnaces, water heaters, ranges, refrigerators, and outdoor appliances in RV systems.

Installation Notes

• Mount vertically with vent down; keep the vent clear of road spray/debris.
• Connect cylinders via approved pigtails to the dual inlets; outlet goes to the RV low-pressure manifold.
• Leak-test all joints with approved solution after installation (never with open flame).
• Set selector lever toward the active service cylinder; replace the opposite bottle when indicator shows red.
• Follow NFPA 1192 / ANSI A119.2 or local codes; qualified technician recommended.

Specifications

Notes

• Propane (LP) only; not for natural gas.
• Keep regulator vent oriented down and unobstructed at all times.