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Typical Cold Water Start Multiple Boiler Piping
1. PLUMB SWING CHECK VALVE IN GRAVITY- CLOSED POSITION.
2. PIPE ALL RELIEF VALVES TO DRAIN, OR AS LOCAL CODES REQUIRE.
3. LOCATE UNIONS TO FACILITATE SERVICING OF PLUMBING SIDE.
4. BUFFER TANKS MAY BE REQUIRED TO PROVIDE STABLE TEMPERATURE
CONTROL ON SYSTEMS WITH VARIABLE FLOW OR LOW WATER VOLUME.
CONSULT FACTORY FOR SELECTION CRITERIA.
5. MAXIMUM 4 TIMES THE PIPE DIAMETER OR 12”, WHICHEVER IS LESS.
6. SYSTEM FLOW MUST EXCEED HEATER FLOW AT ALL TIMES.