Taco 0010-MSF-IFC Instruction Sheet page 2

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
from 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.
FIGURE 1:
PREFERRED PIPING
FOR CIRCULATORS
ON BOILER SUPPLY LINE
ZONE 2 ZONE 1
PV4
V1
FIGURE 2:
ALTERNATE
PIPING
FOR CIRCULATORS
ON BOILER RETURN LINE
ZONE 2
V3
P
V2
FF
BOILER
ZONE 1
V3
P
V2
PV4
V1
EXPANSION
TANK
KEY:
VI, V2, V3 = SHUT-OFF ISOL TION V LVE
P = T CO IFC CIRCUL TOR
FF = F ST FILL BOILER FEED V LVE
PV4 = PURGE V LVE
RECOMMENDED PURGING STEPS:
1. CLOSE V1, PV4, V2
2. OPEN V3
3. OPEN FF V LVE
4. OPEN V2, PV4, TO PURGE ZONE 1
5. CLOSE FF V LVE
6. CLOSE V2, PV4
7. REPE T STEPS 1 TO 6 FOR E CH
8. OPEN V1 WHEN LL ZONES RE
9.
FF
EXPANSION
TANK
BOILER
ZONE 1
V2 P V3
ZONE 2
V2 P V3
DDITION L ZONE
PURGED
DJUST SYSTEM TO DESIRED
OPER TING FILL PRESSURE IF
REQUIRED
ZONE 1
ZONE 2