Instructions / Assembly

BOILER
FF
EXPANSION
TANK
ZONE 1
ADDITIONAL
ZONES
ZONE 1
V2
V2
V3
V3
V1
PV4
FIGURE 1 – PREFERRED
R
ECOMMENDED PIPING FOR
IFC CIRCULATORS
ON BOILER SUPPLY LINE
P
P
ADDITIONAL
ZONES
BOILER
FF
EXPANSION
TANK
ZONE 1
V1
PV4
FIGURE 2 – ALTERNATE
RECOMMENDED PIPING FOR
IFC CIRCULATORS
ON BOILER RETURN LINE
ZONE 1
V2V2
V3V3
P P
I
MPORTANT: NOTE LOCATION
F
OR PURGE VALVE. IF IFC IS
I
NSTALLED ON BOILER RETURN,
P
V4 MUST BE ON PUMP DISCHARGE.
ADDITIONAL
ZONES
ADDITIONA
L
ZONES
KEY:
VI, V2, V3 = SHUT-OFF ISOLATION
VALVE
P = TACO IFC CIRCULATOR
FF = FAST FILL BOILER FEED VALVE
PV4 = PURGE VALVE
RECOMMENDED PURGING STEPS:
1 . CLOSE V1, PV4, V2
2 . OPEN V3
3 . OPEN FF VALVE
4 . OPEN V2, PV4, TO PURGE ZONE 1
5 . CLOSE FF VALVE
6 . CLOSE V2, PV4
7 . REPEAT STEPS 1 TO 6 FOR EACH
ADDITIONAL ZONE
8 . OPEN V1 WHEN ALL ZONES ARE
PURGED
9 . ADJUST SYSTEM TO DESIRED
OPERATING FILL PRESSURE IF
REQUIRED