Which direction should the rotation be

If the coil is showing signs of burn-out or electrical failure

which allow for brazing without disassembling the valve

simplifying field service and replacement

Watts 0278030 Valve R-410A Which direction should the rotationThe Watts 0278030, also identified as the Series 174A 2 30, is a heavy duty ASME Section IV certified pressure relief valve designed for high capacity protection of hot water heating and domestic supply boilers. This 2 inch NPT bronze boiler relief valve is factory set at 30 PSI with a massive steam relief capacity of 3,815,000 BTU hr. Built with a non mechanical seat to disc alignment, the internal stainless steel spring and working parts are