-3-
F
PREFERRED PIPING FOR ZONE VALVES ON BOILER SUPPLY
KEY:
VI, V2, V3 = SHUT-OFF ISOLATION VALVE
P = TACO 0034e CIRCULATOR
FF = FAST FILL BOILER FEED VALVE
PV4 = PURGE VALVE
ZV = ZONE VALVE
PREFERRED PRIMARY / SECONDARY PIPING FOR ZONE VALVES ON BOILER SUPPLY
ALTERNATE PIPING FOR ZONE VALVES ON BOILER RETURN
igure 3:
MOD CON
BOILER
ZONE 1 ZONE 2 ZONE 3
ZONE 1
ZONE 2
ZONE 3
ZONE 1
ZONE 2
ZONE 3
ZONE 1 ZONE 2 ZONE 3
Figure 3
PREFERRED PIPING FOR ZONE VALVES ON BOILER SUPPLY
ALTERNATE PIPING FOR ZONE VALVES ON BOILER RETURN
PREFERRED PRIMARY / SECONDARY PIPING FOR ZONE VALVES ON BOILER SUPPLY