Install Instructions

ManualsBrandsJohnson Controls ManualsFlow Switches1" Liquid Flow Switch (SS Paddles)

Table Of Contents

F261 Series Flow Switches Installation Instructions

Refer to the QuickLIT website for the most up-to-date version of this document.

Applications

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 1 inch trade size (or greater) pipe.

F261 Series Low Flow Switches respond to low fluid

flow rates in applications with 1 inch trade size (or less)

pipe.

A low-energy model with gold-plated contacts provides

improved electrical performance in low-voltage, low-

current circuits to operate small relays, solenoid valves,

and electronic control circuits.

Installation

F261 Series Standard Flow Switches are packaged

with 1 in., 2 in., 3 in., and 6 in. stainless steel flow

paddles along with a paddle screw and lock washer.

See Table 2 for replacement parts.

IMPORTANT: Do not install or use 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.

IMPORTANT: Use this F261 Series Flow Switch

only as an operating control. Where failure or

malfunction of the flow switch could lead to personal

injury or property damage to the controlled equipment

or other property, additional precautions must be

designed into the control system. Incorporate and

maintain other devices, such as supervisory or alarm

systems or safety or limit controls, intended to warn of

or protect against failure or malfunction of the flow

switch.

IMPORTANT : Utiliser ce F261 Series Flow Switch

uniquement en tant que dispositif de régulation.

Lorsqu'une défaillance ou un dysfonctionnement du

flow switch risque de provoquer des blessures ou

d'endommager l'équipement contrôlé ou un autre

équipement, la conception du système de contrôle

doit intégrer des dispositifs de protection

supplémentaires. Veiller dans ce cas à intégrer de

façon permanente d'autres dispositifs, tels que des

systèmes de supervision ou d'alarme, ou des

dispositifs de sécurité ou de limitation, ayant une

fonction d'avertissement ou de protection en cas de

défaillance ou de dysfonctionnement du flow switch.

F261 Series Flow Switches

Installation Instructions

Part No. 24-7664-2969, Rev. D

Issued March 2016

Summary of content (12 pages)

PAGE 1
F261 Series Flow Switches Installation Instructions Part No. 24-7664-2969, Rev. D Issued March 2016 Refer to the QuickLIT website for the most up-to-date version of this document. Applications F261 Series Standard Flow Switches use a variety of paddle sizes to respond to fluid flow rates in applications with 1 inch trade size (or greater) pipe. IMPORTANT: Do not install or use this F261 Series Flow Switch in or near environments where corrosive substances or vapors could be present.
PAGE 2
Dimensions 4 [102] 2-3/4 [70] 2 [51] 11/16 [18] 1/2 [12] Typical Thread Engagement 1/2 in. trade size or PG-16 conduit opening 30 mm Hex 3-1/2 [89] 2-9/16 [65] 2-1/8 [54] 1-11 1/2 NPT 4-1/2 [114] 5-11/16 [144] FIG:F261_stndrd_dmnsns 8-3/4 [222] Figure 1: Dimensions for F261 Standard Flow Switch, in. [mm] 2-3/4 (70) 2 (51) 11/16 (18) 1/2 in. -14 dryseal thread or 3/4 in.
PAGE 3
Installing the Flow Paddles WARNING: Risk of Personal Injury. Shut off the liquid supply and relieve pressure in the line before servicing the valve. Contents of liquid lines could be under pressure and the release of liquid under pressure may cause severe personal injury. FIG:trm_flw_pddl ! Note: Allow a minimum clearance of 3/16 in. (5 mm) between the end of the flow paddle and the pipe wall. AVERTISSEMENT : Risque de blessure.
PAGE 4
FIG:pddl_tmplt Accessories Table 2: Replacement Paddle Parts 1 in. pipe 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 1-1/2 in. pipe Mounting FIG:wrnch_flts 2 in. pipe 2-1/2 in. pipe 3 in.
PAGE 5
When mounting the flow switch on horizontal pipe, mount the flow switch within 60 degrees of vertical. See Figure 9. Example: Use a 2 in. x 2 in. x 1 in. tee for a 2 in. pipe. If a standard 2 in. x 2 in. x 2 in. tee is used, install a face or hex bushing in the top opening to reduce the top opening to 1 in.
PAGE 6
Wiring ! The F261 models have three color-coded terminals. Red is common. See Figure 11 and Table 3 for switch action. WARNING: Risk of Electric Shock. Disconnect the power supply before making electrical connections. The printed circuit board and its components are at AC line voltage. Contact with components carrying hazardous voltage can cause electric shock and may result in personal injury or death. Red Yellow Blue AVERTISSEMENT : Risque de décharge électrique.
PAGE 7
! Note: Do not lower the flow rate required to activate the switch, unless the flow rate required to activate the switch was raised from the factory-set flow rate. CAUTION: Risk of Property Damage. Do not attempt to change sealed settings. Attempted adjustment may damage the control or cause loss of calibration or other property damage. 4. Replace the enclosure cover and tighten the cover screws with 12 in•lb of torque. MISE EN GARDE : Risque de dégâts matériels.
PAGE 8
Table 4: Flow Rates for Standard Models, 1-3 in. Paddles, GPM (m3/hr) GPM (m3/hr) Required to Activate Switch for Pipe Size (in.) Minimum Adjustment Maximum Adjustment 1. 2. 3. 1 1-1/41 1-1/21 2 2-1/22 3 43 53 63 83 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.
PAGE 9
Flow Rate (L/Min) 0 7.6 15.1 22.7 30.3 37.9 45.4 53.0 60.6 68.1 75.7 83.3 90.9 98.4 106 113.6 20 137.9 18 124.1 16 110.3 14 96.5 1/2 in. pipe size 10 69.0 8 55.2 6 41.4 4 27.6 2 13.8 0 0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 Pressure Drop (kPa) 82.7 FIG:F261_LwFlw Pressure Drop (PSI) 3/4 in.
PAGE 10
Troubleshooting Table 8: Troubleshooting Symptom Solution Water (condensate) appears within the enclosure. If the control has a Type 3R/IP43 enclosure, inspect the grommet in the field-installed cable gland or conduit fitting, and replace the grommet if it is defective. If the control has a Type 4/IP67 enclosure, inspect the case-to-cover O-ring provided on the flow switch. Ensure that the O-ring is in place and undamaged.
PAGE 11
Table 12: 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.
PAGE 12
F261 Series Fluid Flow Switches Switch Enclosure SPDT UL: Type 3R or Type 4 CE: IP43 (IP23 with drain hole plug removed) or IP67 Three color-coded screw terminals and one ground terminal One 7/8 in. (22 mm) hole for 1/2 in. trade size (or PG16) conduit Standard: 1 in. 11-1/2 NPT Threads Low-Flow: 1/2 in. x 1/2 in. Female NPTF 3/4 in. x 3/4 in.