Installation Instructions F61
Issue Date July 30, 2002
© 2002 Johnson Controls, Inc.
1
Part No. 24-8407-4, Rev. C
www.johnsoncontrols.com
F61 Series Standard Flow Switches
Installation
IMPORTANT:
All F61 Series Flow Switches are
intended to control equipment under normal
operating conditions. Where failure or malfunction of
an F61 Flow Switch could lead to an abnormal
operating condition that could cause personal injury
or damage to the equipment or other property, other
devices (limit or safety controls) or systems (alarm or
supervisory) intended to warn of, or protect against,
failure or malfunction of the F61 Flow Switch must
be incorporated into and maintained as part of the
control system.
Some models of the F61 Series Standard Flow
Switches require installation or adjustment of paddles
prior to mounting. See
Installing the Flow Paddles
.
Parts Included
Standard models of the F61 flow switch include an
installed three-piece flow paddle. Some models also
include a large flow paddle for large pipe sizes.
Table 1: Replacement Parts
Kit Number
Description
KIT21A-600
Stainless Steel Three-piece Paddle
(3 in., 2 in., and 1 in. Segments)
KIT21A-601
Stainless Steel 6 in. Paddle
PLT52A-600R
Stainless Steel Three-piece Paddle
(3 in., 2 in., and 1 in. Segments) and
6 in. Paddle
CVR62A-600R
Replacement Cover Assembly for LB,
MB, MD, and MG types
Installing the Flow Paddles
IMPORTANT:
To allow the switch to detect changes
in the fluid flow, the flow paddle must not touch the
pipe or any restrictions in the pipe.
Adjust flow paddles to the size of the pipe used. If
needed, trim the large flow paddle at the arc
corresponding to pipe size (see Figure 1 and Figure 2)
and install.
Flow
Paddle
Screw
Trim flow paddles to fit
pipe diameter or remove
flow paddles that are
too large to fit pipe diameter.
Figure 1: Installing the Paddles
6 in.
5 in.
4 in.
3 in.
2-1/2 in.
2 in.
1-1/2 in.
1 in.
Original
Length
Figure 2: Trimming Diagram for Large Flow Paddle
