Rheem Raypak Delta Limited WH3-649B - All Air from Outdoors; Canadian Installations

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NOTES:
1. LOCATE UNIONS TO FACILITATE SERVICING OF PLUMBING SIDE. 2. PLUMB SWING CHECK VALVE IN GRAVITY-CLOSED POSITION.
3. PIPE ALL RELIEF VALVES TO DRAIN, OR AS LOCAL CODES REQUIRE
.
4. BUFFER TANK REQUIRED WHEN WATER VOLUME IN BOILER LOOP
IS NOT ADEQUATE TO PROVIDE STABLE TEMPERATURE CONTROL. CONSULT FACTORY FOR TANK SIZING.
5. SYSTEM FLOW MUST EXCEED HEATER FLOW AT ALL TIMES.
Typical Cold Water Start Piping