Dunkirk Q90-50 - Page 16

Figure 6 - Piping Primary/Secondary Multi Zone System Piping With Zone Valves And
Domestic Hot Water (With Zone Valve)
ZONE 4
SYSTEM
CIRCULATOR
ZONE 1 (PRIORITY ZONE)*
* USE FULL PORT ZONE
VALVE.
FOR OPTIMUM TANK
PERFORMANCE,
CONSIDER USING ZONE
CIRCULATOR.
BOILER
MAX =4 X DIAMETER !_...
CLOSLEY-SPACED
TEES I
C:h
BOILER
PUMP