FIG. 4
CAUTION:
Screw the device into the TEE fitting as shown.
Care must be taken to properly orient the device for
the direction of the flow. Do not tighten by grasping
the switch enclosure. Use the wrenching flats on the
bushing only. Turning radius required for mounting
the IFS is 3".
FIG. 5
Use the drawing at
right as a template
and trim at the dot-
ted arc when trim-
ming the appropri-
ate paddle for in-
termediate pipe
sizes.
CAUTION:
The paddle must
not touch the in-
side of the pipe or
bind in any way.
FIG. 3
Typical paddle arrangement
for 6" to 8" pipe, using smaller
flexible paddles for added
support and higher sensitiv-
ity.
NOTE:
When installing
rigid paddles
, do
not stack paddles.
Only install
ONE
paddle that best
fits the pipe.
WIRING
Use properly rated temperature supply wire for
the anticipated service temperature.
Make all electrical connections in accordance
with the National Electrical Code and local regu-
lations.
See Figs. 6A and 6B for diagrams illustrating
switch action.
ADJUSTMENT
Remove switch cover and turn the sensitivity
adjusting screw clockwise to increase the flow
rate required to actuate the switch. Turn the
sensitivity adjusting screw counter-clockwise to
decrease the flow rate required to actuate the
switch. (See Fig. 1.) Be sure to replace the
cover upon completion of the installation and
adjustment.
CAUTION:
Check the installation for "no-flow"
switch operation. Make appropriate adjustments
to the sensitivity adjustment screw to be sure the
switch restores fully at the desired flow rate.
NOTES:
1
.
Typical flow rates for 1" to 1 1/2" pipe sizes
are averages which may vary approximately
±1 GPM with the use of a bronze reducing
tee.
2
.
Typical flow rates for 2" to 8" pipe sizes are
averages which may vary ±10% with the use
of a 1" weldolet.
(*) Flow rates for these sizes are calculated.
IFS01 / IFS02
SWITCH INFORMATION
IFSH1 / IFSH2
SWITCH INFORMATION
FIG. 6B
S
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all
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e
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r
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zi
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e
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/
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4
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e
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5.
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15
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9
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a
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w
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e
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75
.
85
.
0
15
.
8
16
25
45
65
0
10
6
10
8
3
Do it Once. Do it Right.
TACO, INC.,
1160 Cranston Street, Cranston, RI 02920 Telephone: (401) 942-8000 FAX: (401) 942-2360.
TACO (Canada), Ltd.,
6180 Ordan Drive, Mississauga, Ontario L5T 2B3. Telephone: 905/564-9422. FAX: 905/564-9436.
Manufactured by
POTTER ELECTRIC SIGNAL CO.,
St. Louis, MO
Visit our web site at:
http://www.taco-hvac.com
Printed in USA
Copyright 2002
TACO, Inc.
FIG. 6A
FIG. 7
