Instructions / Assembly

BOILER
FF
EXPANSION
TANK
ZONE 1ZONE 2
Z
ONE 1
Z
ONE 2
V2
V2
V3
V3
V1
PV4
FIGURE 1:

P
REFERRED PIPING
F
OR CIRCULATORS
O
N BOILER SUPPLY LINE
P
P
BOILER
FF
EXPANSION
TANK
ZONE 1
ZONE 2
V1
PV4
FIGURE 2:

ALTERNATE
PIPING
FOR CIRCULATORS
ON BOILER RETURN LINE
ZONE 1ZONE 2
V2V2
V3V3
PP
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
5. Fill system with tap water – The system must be filled before operating the circulator. The bearings are water lubricat-
ed and should not be allowed to operate dry. Filling the system will result in immediate lubrication of the bearings. It is
always good practice to flush a new system of foreign matter before starting the circulator.
6. Circulator operation – Operate the circulator for 5 minutes immediately after flushing the system to purge remaining air
f
rom the bearing chamber. This is especially important when installing the circulator during the off-season.
7. Turn speed dial on circulator to the desired speed and performance range. See Figure 3.