DIVISION 1 - GENERAL REQUIREMENTS - IDEAS-EC

I. Keep openings in piping closed during construction to prevent entrance of foreign matter.3 .3 VALVESA. Field check valves for packing and lubricant. Determine disk is for service intended. Replaceleaking packing. Service valves with lubricant for smooth and proper operation before placing inservice.B. Install valves accessible from floor level. Locate valves for easy access. Install valves inhorizontal piping with stem at or above center of pipe. Install valves in position to allow full stemmovement. Provide operating handles for valves and cocks without integral operators.C. Provide extended valve stems where insulation is specified.D. Provide separate support where necessary.E. Provide valves same size as line size.F. Provide gate blowdown valves and hose adapters at strainers; same size as strainer blowoffconnection.G. Check Valves: Install wafer check valves on pump discharge. Install check valves for properdirection of flow as follows:1. Swing Check Valve: Horizontal position with hinge pin level.2. Wafer Check Valve: Horizontal or vertical position, between flanges.3 .4 BACKFLOW PREVENTERSA. Route pipe from air gap fitting or funnel drain at relief outlet to nearest floor drain.3 .5 EQUIPMENT PIPINGA. Provide combination balancing and shutoff valves to regulate water flow through piping, coils,and at other equipment and piping where shown or required for proportioning flow.B. Install automatic fill valve in cold water make-up to boiler. Install three valve bypass with globevalve around automatic fill valve for quick filling system. Install backflow preventer upstream offill valve and bypass. Install funnel drain below backflow preventer relief port and extend drainpiping to floor drain.3 .6 PRESSURE GAUGESA. Install pressure gauges in piping tees with isolation valve and in readable position.3 .7 THERMOMETERSA. Install with brass separable sockets of proper length to ensure accurate reading and extensionnecks to suit insulation thickness.15500-7HYDRONIC SYSTEMS