Penn F261 Series User manual

F261 Series Fluid Flow Switches Product Bulletin 1
Refer to the QuickLIT website for the most up-to-date version of this document.
The F261 Series Flow Switches respond to fluid flow in
lines carrying water, ethylene glycol, or other
nonhazardous fluids. These models also work in
applications with swimming pool water and lubricating
oils.
F261 Series Standard Flow Switches use a variety of
paddle sizes to respond to fluid flow rates in
applications with pipe sizes greater than 1 inch trade
size.
Figure 1: F261KAH Flow Switch
Table 1: Features and Benefits
Features Benefits
Type 3R (NEMA) or Type 4 (NEMA)
Polycarbonate Enclosure Provides dust protection in indoor applications. Suitable for Use in Other Environmental Air Space (Plenums) in accordance with Section 300.22(C)
of the National Electrical Code.
Viton® Diaphragms Allow use in fluid lines carrying chlorinated water, treated water, or other
nonhazardous fluids.
Low-Flow Operation on Low-Flow Models Actuates switch with less than 1.0 GPM (3.8 L/min) flow for water
applications or 9.0 GPM (34.1 L/min) flow for steam applications.
Gold-Plated Contacts on Selected Models Reduce intermittent contact problems in low-voltage and low-current
circuits.
Maximum Fluid Pressure of 290 psig
(20 bar) Permits use in a wide range of pressure flow conditions.
F261 Series Fluid Flow Switches
Product Bulletin Code No. LIT-12011987
Issued March 9, 2015

F261 Series Fluid Flow Switches Product Bulletin2
Application
Standard Flow Switches
Use F261 Series Standard Flow Switches in
applications with fluid pressures up to 290 psig
(20 bar). A typical application for a standard F261 flow
switch is to shut down the refrigeration compressor on
a fluid chiller system if flow stops, reducing chances of
chiller freeze-ups.
Type 3R (NEMA) / IP43 Enclosures
Use models with Type 3R (NEMA) / IP43 enclosures
for indoor or outdoor applications where they are
protected from weather and splashing water. Use these
models with pipes carrying fluids at temperatures in the
range of -20°F to 250°F (-29°C to 121°C). A drain hole
allows Type 3R (NEMA) models to be used in
applications where the fluid temperature is below the
ambient dew point temperature. The drain hole
knockout is plugged on IP43 models to prevent the
intrusion of objects 1 mm Ø and greater. Removing the
plug reduces the enclosure rating to IP23, allowing
these models to be used in applications where the fluid
temperature is below the ambient dew point
temperature. Do not use these models in applications
or environments where the temperature may cause the
fluid to freeze.
Type 4 (NEMA) / IP67 Enclosures
Use models with Type 4 (NEMA) enclosures for indoor
or outdoor applications in high humidity environments.
Use these models with pipes carrying fluids at
temperatures in the range of -20°F to 250°F (-29°C to
121°C). A sealing O-ring between the cover and case
allows these models to be used in high-humidity
environments, or applications where the fluid
temperature is below the ambient dew point
temperature. Do not use these models in applications
or environments where the temperature may cause the
fluid to freeze.
Media Compatibility
F261 Series Flow Switches are compatible with several
common media:
• water
• ethylene glycol
•brine
•seawater
• swimming pool water
• lubricating oils
IMPORTANT: All F261 Series Flow Switches are
intended to control equipment under normal
operating conditions. Where failure or malfunction of
an F261 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 F261 Flow
Switch must be incorporated into and maintained as
part of the control system.
IMPORTANT: Do not install oruse this F261 Series
Flow Switch in or near environments where
corrosive substances or vapors could be present.
Exposure of the F261 Series Flow Switch to
corrosive environments may damage the device’s
internal components and will void the warranty.
IMPORTANT: Do not use F261 Series Flow
Switches where the fluid in the pipes drops below
the fluid’s freezing point, causing an internal
freeze-up.

F261 Series Fluid Flow Switches Product Bulletin 3
Dimensions
Operation
The flow switch responds to pressure exerted on the
fluid paddle by the flowing fluid. A range adjustment
screw adjusts the rate of the flow required to activate
the switch. See Table 3 through Table 6 for flow rates.
Figure 2: Dimensions for F261 Standard Flow Switch, in. (mm)
1/2 (12)
Typical
Thread
Engagement
3-1/2
(89)
4-1/2
(114)
5-11/16
(144)
8-3/4
(222)
2-3/4
(70)
11/16
(18)
2-1/8
(54)
1/2 in.
trade size
or PG-16
conduit
opening
FIG:F261_stndrd_dmnsns
4
(102) 2
(51)
1-11 1/2 NPT
30 mm Hex
2-9/16
(65)

F261 Series Fluid Flow Switches Product Bulletin4
The red terminal is the Common. Red to Yellow closes
on flow increase. Red to Blue closes on flow decrease.
Table 2: F261 Switch Action
Flow Action Switch Closure
Increase Red to Yellow
Decrease Red to Blue
Figure 3: F261 Control Switch Action
Red
Yellow
Blue
Decrease in Flow
Above Setpoint
Increase in Flow
Above Setpoint
Table 3: Flow Rates for Standard Models, 1-3 in. Paddles
GPM (m3/hr) Required to Activate Switch for Pipe Size (in.)
11-1/411-1/2122-1/22343536383
Minimum
Adjustment Flow Increase
(Close
R to Y)
4.20
(0.95) 5.80 (1.32) 7.50 (1.70) 13.7 (3.11) 18.0 (4.09) 27.5 (6.24) 65.0 (14.8) 125 (28.4) 190 (43.2) 375 (85.2)
Flow
Decrease
(Close
R to B)
2.50
(0.57) 3.70 (0.84) 5.00 (1.14) 9.50 (2.16) 12.5 (2.84) 19.0 (4.32) 50.0 (11.4) 101 (22.9) 158 (35.9) 320 (72.7)
Maximum
Adjustment Flow Increase
(Close
R to Y)
8.80
(2.0) 13.3 (3.02) 19.2 (4.36) 29.0 (6.59) 34.5 (7.84) 53.0 (12.0) 128 (29.1) 245 (55.6) 375 (85.2) 760 (173)
Flow
Decrease
(Close
R to B)
8.50
(1.93) 12.5 (2.84) 18.0 (4.09) 27.0 (6.13) 32.0 (7.27) 50.0 (11.4) 122 (27.7) 235 (53.4) 360 (81.8) 730 (166)
1. Values for 2 in. paddle trimmed to pipe.
2. Values for a 3 in. paddle trimmed to fit pipe.
3. Values calculated for a factory-installed set of 1, 2, and 3 in. paddles.

F261 Series Fluid Flow Switches Product Bulletin 5
Ordering Information
F61 to F261 Cross-Reference Tables
Selection Tables
Repair Information
Do not make field repairs, except for replacement of
the flow paddle. For a replacement control or paddle
kit, contact the nearest Johnson Controls/PENN
distributor. For more information, contact
Johnson Controls/PENN application engineering at
1-800-275-5676 or 1-414-524-5535.
Table 4: Flow Rates for Standard Models, 6 in. Paddles
GPM (m3/hr) Required to Activate Switch for Pipe Size (in.)
4568
Minimum
Adjustment Flow Increase (Close R to Y) 37.0 (8.40) 57.0 (12.9) 74.0 (16.8) 205 (46.6)
Flow Decrease
(Close R to B) 27.0 (6.13) 41.0 (9.31) 54.0 (12.3) 170 (38.6)
Maximum
Adjustment Flow Increase (Close R to Y) 81.0 (18.4) 118 (26.8) 144 (32.7) 415 (94.3)
Flow Decrease
(Close R to B) 76.0 (1.93) 111 (25.2) 135 (30.7) 400 (90.8)
Table 5: Standard Flow Models Cross Reference
F61 Series Model F261 Series Model
F61KB-11C F261KAH-V01C
F61LB-1C F261MAH-V01C
F61MB-1C F261MAH-V01C
F61MB-5C F261MAH-V01C
Table 6: F261 Series Standard Model Flow Switches
Product Code
Number Description
F261KAH-V01C Standard model flow switch with Type 3R (NEMA) enclosure; 1 in., 2 in., 3 in., and 6 in. stainless steel
paddles, lock-tooth washer, and stainless steel paddle screw supplied uninstalled
F261MAH-V01C Standard model flow switch with Type 4 (NEMA) enclosure; 1 in., 2 in., 3 in., and 6 in. stainless steel
paddles, lock-tooth washer, and stainless steel paddle screw supplied uninstalled
Table 7: Replacement Paddle Parts
Product Code
Number Description
KIT21A-600 Stainless steel 3-piece paddle (3 in., 2 in., and 1 in. segments)
KIT21A-601 Stainless steel 6 in. paddle
PLT52A-600R Stainless steel 3-piece paddle (3 in., 2 in., and 1 in. segments) and Stainless steel 6 in. paddle

F261 Series Fluid Flow Switches Product Bulletin6
Technical Specifications
Table 8: F261xxH Series Standard Controls Electrical Ratings
Volts 50/60 Hz
UL60730/UL1059 EN60730
24 120 208 240 24 230
Horsepower –111––
Full Load Amperes –161010–8
Locked Rotor Amperes –966060–48
Resistive Amperes 16 16 10 10 16 16
Pilot Duty VA 125 720 720 720 77 720
Table 9: UL Conformity Declaration Information
Information Description
Purpose of Control F261 Fluid Flow Switch
Construction of Control Electronic independently mounted control
Number of Cycles 100,000 cycles
Method of Mounting
Control Mounting to sensed media vessel/orientation
Type 1 or Type 2 Action Type 1.C (Microinterruption)
ExternalPollutionSituation Pollution degree 4
Internal Pollution Situation Pollution degree 2
Rated Impulse Voltage 4,000 VAC
Ball Pressure Temperature Enclosure: 266°F (130°C )
Switch Component: 252°F (122°C)
Control Adjustment
Instruction -
Field Wiring Rating Wire/Cord Temperature Ratings:
• 140°F (60°C) only permitted when ambient air and media are less than
113°F (45°C)
• 167°F (75°C) only permitted when ambient air and media are less than 140°F (60°C)
• 194°F (90°C) only permitted when ambient air is less than 140°F (60°C) and media is less
than 167°F (75°C)
• 302°F (150°C) permitted when ambient air is less than 140°F (60°C) and media is less
than 249°F (121°C)
Vessel Pressure F261 Fluid Flow Switch: 290 psi (20 Bar)
F261 Series Fluid Flow Switches (Part 1 of 2)
Switch SPDT
Enclosure UL: Type 3R or Type 4
CE: IP43 (IP23 with drain hole plug removed) or IP67
Wiring Connections Three color-coded screw terminals and one ground terminal
Conduit Connection One 7/8 in. (22 mm) hole for 1/2 in. trade size (or PG16) conduit
Pipe Connector Standard: 1 in. 11-1/2 NPT Threads
Maximum Fluid Pressure 290 psi (20 bar)
Minimum Fluid Temperature1-20°F (-29°C)

Published in U.S.A. www.johnsoncontrols.com
F261 Series Fluid Flow Switches Product Bulletin 7
Building Efficiency
507 E. Michigan Street, Milwaukee, WI 53202
® Johnson Controls and PENN are registered trademarks of Johnson Controls, Inc. in the
United States of America and/or other countries. All other trademarks used herein are the property
of their respective owners. © Copyright 2015 by Johnson Controls, Inc. All rights reserved.
Maximum Fluid
Temperature2250°F (121°C)
Ambient Conditions -40 to 140°F (-40 to 60°C)
Compliance North America: cULus Listed; UL 60730, File E6688;
FCC Compliant to CFR47, Part 15, Subpart B, Class B
Industry Canada (IC) Compliant to Canadian ICES-003, Class B limits
Europe: CE Mark – Johnson Controls, Inc. declares that this product is in compliance with
the essential requirements and other relevant provisions of the EMC Directive and the Low
Voltage Directive.
Australia/New Zealand Mark: RCM Compliant
1. Ensure that the low liquid temperature combined with the low ambient temperature does not lead to the freezing the liquid
inside the body (or bellows, where appropriate). Please observe the liquid freezing point.
2. At higher ambient temperatures, the maximum allowed liquid temperature becomes lower. The temperature of the electrical
switch inside should not exceed 158°F (70°C).
The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these
specifications, consult Johnson Controls/PENN Refrigeration Application Engineering at 1-800-275-5676. Johnson Controls, Inc. shall not be
liable for damages resulting from misapplication or misuse of its products.
United States Emissions Compliance
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules. These
limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to
radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try
to correct the interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Canadian Emissions Compliance
This Class (B) digital apparatus meets all the requirements of the Canadian Interference-Causing Equipment Regulations.
Cet appareil numérique de la Classe (B) respecte toutes les exigences du Règlement sur le matériel brouilleur du Canada.
F261 Series Fluid Flow Switches (Part 2 of 2)