PENN COMMERCIAL REFRIGERATION - European Product Catalog 2021 | Page 27

HVAC PENN COMMERCIAL
REFRIGERATION

HVAC PENN COMMERCIAL

CONTROL

REFRIGERATION

PRODUCTS

FLOAT AND FLOW CONTROLS F261 MECHANICAL LIQUID FLOW SWITCH
TECHNICAL SPECIFICATIONS
UL CONFORMITY DECLARATION INFORMATION
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 )
External pollution situation
Pollution degree 4
Internal pollution situation
Pollution degree 2
Rated impulse voltage
4,000 VAC
Ball pressure temperature
Enclosure 130 ° C
Switch component 122 ° C
Control adjustment instruction
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Field wiring rating
Wire / cord temperature ratings :
60 ° C only permitted when ambient air and media are less than 45 ° C
75 ° C only permitted when ambient air and media are less than 60 ° C
90 ° C only permitted when ambient air is less than 60 ° C and media is less than 75 ° C
150 ° C permitted when ambient air is less than 60 ° C and media is less than 121 ° C
Vessel pressure
F261 fluid flow switch : 290 psi ( 20 Bar )
FLUID FLOW SWITCHES
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 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 temperature 1
-29 ° C
Maximum fluid temperature 2
121 ° C
Ambient conditions
-40 to 60 ° C
Compliance
Johnson Controls declares that these products are in compliance with the essential requirements and other relevant provisions of the EMC Directive and Low Voltage Directive .
Notes
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 70 ° C .
21 - REFRIGERATION European Products Catalogue 2021