F63 Series Liquid Level Float Switch

Transcription

1 FANs 125, 121 Product/Technical Bulletin F63 Issue Date 0796 F63 Series Liquid Level Float Switch The Single-Pole, Double-Throw (SPDT) F63 Series Liquid Level Float Switches are designed to maintain a liquid level in indoor or outdoor closed tanks holding water or other non-corrosive liquids. When the liquid level in the tank rises above or falls below the required level, the F63 will close one circuit and open a second circuit. Figure 1: F63BF Float Switch Features and Benefits Phosphor Bronze Bellows Single-Pole, Double-Throw Switch Sturdy Steel NEMA 3R (F63BF and F63FF Models) Solid Polypropylene Float (F63EC and F63FF Models) Phosphor bronze provides for a longer life while sealing the switch and wiring compartment from the liquid Provides control where liquid levels rise and fall Allows for use in indoor or outdoor applications; inhibits the formation of moisture in low temperature applications Provides greater resistance to corrosion 1996 Johnson Controls, Inc. 1 Part No , Rev. C Code No. LIT

2 Application Overview The F63 Float Switch should not be used with liquids that are lighter than water (specific gravity less than 1.0). Refer to Table 1 for product descriptions. IMPORTANT: All F63 Float Switches are designed for use only as operating controls. Where an operating control failure would result in personal injury and/or loss of property, it is the responsibility of the installer to add devices (safety, limit controls) or systems (alarm, supervisory systems) that protect against, or warn of, failure. CAUTION: Equipment damage hazard. To avoid equipment damage, do not use the F63 switches with hazardous fluids or in hazardous atmospheres. Table 1: F63 Float Switches Model F63AC F63EC F63BF F63FF Float Copper Float Polypropylene Float Copper Float Polypropylene Float Application Temperature at General Purpose Designed for use with indoor tanks holding water or other non-corrosive liquids at temperatures greater than the ambient dew point and between 32 F (0 C) and 250 F (121 C). Must be used where the ambient temperature at the enclosure is greater than 32 F (0 C). General Purpose Designed for use with indoor tanks holding liquids (well water, brine, or ethylene glycol) at temperatures greater than the ambient dew point and between 32 F (0 C) and 175 F (79 C). Must be used where the ambient temperature at the enclosure is greater than 32 F (0 C). NEMA 3R Raintight Designed for use in indoor or outdoor tanks holding water or other non-corrosive liquids at temperatures greater than the liquid s freezing point and between -20 F (-29 C) and 250 F (121 C). Must be used where the ambient temperature at the enclosure is greater than -20 F (-29 C). NEMA 3R Raintight Designed for use in indoor or outdoor tanks holding liquids (well water, brine, or ethylene glycol) at temperatures greater than the liquid s freezing point and between -20 F (-29 C) and 175 F (79 C). Must be used where the ambient temperature at the enclosure is greater than -20 F (-29 C). 2 F63 Series Liquid Level Float Switch Product/Technical Bulletin

3 O peration The F63 Float Switch will control water levels to within approximately 1/2 in. (13 mm). When the liquid level falls approximately 1/2 in. (13 mm) below the height at which the switch is installed, the red contact (common) will close to the blue contact. Refer to Figure 2. When the liquid level rises in the tank to the height at which the switch is installed, the red (common) contact will close to the yellow contact. Refer to Figure 2. I nstallation IMPORTANT: Do not allow the float to touch the side of the tank or any other obstructions. To prevent moisture from entering and condensate forming inside the NEMA 3R enclosure on the F63BF or F63FF, do not remove the cover gasket or the wire grommet in the conduit opening. WARNING: Personal injury hazard. To avoid injury, turn off the liquid supply and relieve the pressure, before installing or removing the float switch. Figure 2: F63 Switching Action CAUTION: Equipment damage hazard. To avoid damaging the switch, do not tighten by grasping the switch enclosure. Use only the wrench flats provided (refer to Figures 3 and 4). To avoid damaging the float, maximum allowable liquid pressure for F63EC and F63FF is 150 psig (1035 kpa). Maximum allowable liquid pressure for F63AC and F63BF is 100 psig (690 kpa). Install the F63 into a properly threaded (and sealed), 1 in. diameter hole in the tank at the height where the liquid level is to be maintained. Position the F63 with the arrow on the enclosure pointing upward and the threads adequately sealed. F63 Series Liquid Level Float Switch Product/Technical Bulletin 3

4 Dimensions Hex (Wrench flats to be used for tightening 38 switch to installation.) 1 in. 11-1/2 NPT UP F63FF Models Only Hex /2-14 NPSM Thread F63BF Models Only Figure 3: F63BF and F63FF Dimensions (in./mm) 4 F63 Series Liquid Level Float Switch Product/Technical Bulletin

5 Hex (Wrench flats to be used for tightening switch to installation.) 1 in. 11-1/2 NPT UP F63EC Models Only /2-14 NPSM Thread for Diameter Hole Conduit with F63AC Models Only for Diameter Knockout Conduit Ring Figure 4: F63AC and F63EC Dimensions (in./mm) F63 Series Liquid Level Float Switch Product/Technical Bulletin 5

6 W iring WARNING: Shock hazard. To avoid possible electric shock or damage to the equipment, disconnect the power supply before making wiring connections. Make all wiring connections only with copper conductors and in accordance with the National Electric Code and local regulations. The F63AC and F63EC models have color-coded screw terminals. Remove the cover to make wiring connections. Use the terminal screws furnished (8-32 x 1/4 in. binder head). Substitution with other screws will void the warranty and agency approvals. Refer to Figures 6 and 7 for terminal identification. The F63BF and F63FF models have color-coded wire leads. Make connections externally (outside the enclosure). Connections made internally (inside the enclosure) may break the vapor-proof seals. Refer to Figures 6 and 7 for terminal identification. Figure 6: Suggested Circuit for Controlling Fill Levels with Several Inches/Feet Difference Between Minimum and Maximum Levels Figure 5: F63 Switching Action (Repeated for Reference) Figure 7: Suggested Circuit for Controlling Dump Levels with Several Inches/Feet Difference Between Minimum and Maximum Levels 6 F63 Series Liquid Level Float Switch Product/Technical Bulletin

7 Adjustments All F63 switches are factory set and sealed. No field adjustments are required. Changing the factory settings will void the warranty. Checkout Procedure Before applying power to the F63, make sure installation and wiring connections are according to job specifications. After all necessary adjustments and electrical connections have been made, put the system into operation and observe at least three complete operation cycles before leaving the installation site. Troubleshooting Table 2: F63 Float Switch Troubleshooting Problem Water (in the form of condensation) is within the enclosure. Control switch action is reversed. Control does not switch. Solution If using F63AC or F63EC, use vaportight enclosure instead. If using F63BF or F63FF, inspect grommet in conduit conductor. Replace unit if grommet is defective. If the bellows are leaking, replace unit. Ensure wiring connections follow wiring diagrams in Wiring section. F63 may be installed upside down. Install F63 with arrow on the enclosure pointing upward. Check connections. Ensure wiring connections follow wiring diagrams in Wiring section. Inspect float. If it is broken, replace. Inspect switch mechanism. Clear any debris within mechanism. O rdering Information Table 3: F63 Ordering Information Product Number F63AC-1 F63BF-1 F63EC-1 F63FF-1 Description Repairs and Replacement SPDT Float Switch with General and Copper Float for Liquid Temperatures Ranging from 32 F (0 C) to 250 F (121 C); Maximum Liquid Pressure is 100 psig (690 kpa) SPDT Float Switch with NEMA 3R and Copper Float for Liquid Temperatures Ranging from -20 F (-29 C) to 250 F (121 C); Maximum Liquid Pressure is 100 psig (690 kpa) SPDT Float Switch with General and Solid Polypropylene Float for Liquid Temperatures Ranging from 32 F (0 C) to 175 F (79 C); Maximum Liquid Pressure is 150 psig (1035 kpa) SPDT Float Switch with NEMA 3R and Solid Polypropylene Float for Liquid Temperatures Ranging from -20 F (-29 C) to 175 F (79 C); Maximum Liquid Pressure is 150 psig (1035 kpa) Do not make field repairs. For a replacement float switch, contact the nearest Johnson Controls/PENN distributor. Refer to Table 3 for ordering information. F63 Series Liquid Level Float Switch Product/Technical Bulletin 7

8 Specifications Product Minimum Tank Diameter F63 Series Liquid Level Float Switch 9 in. (229 mm) Maximum Liquid Pressure F63AC and F63BF: 100 psig (690 kpa) F63EC and F63FF: 150 psig (1035 kpa) Liquid Temperatures F63BF F63FF F63AC F63EC Minimum -20 F (-29 C) or Liquid Freezing Point -20 F (-29 C) or Liquid Freezing Point 32 F (0 C) or Ambient Dew Point 32 F (0 C) or Ambient Dew Point Maximum 250 F (121 C) 175 F (79 C) 250 F (121 C) 175 F (79 C) Ambient Temperatures F63BF F63FF F63AC F63EC Minimum -20 F (-29 C) -20 F (-29 C) 32 F (0 C) 32 F (0 C) Electrical Ratings 120 VAC 208 VAC 240 VAC 277 VAC Horsepower Full Load Amperes Locked Rotor Amperes Non-inductive Amperes Pilot Duty Wiring Connections F63BF and F63FF Four Color-coded No. 14 AWG Solid Conductor Wire Leads 125 VA at 24/277 VAC F63AC and F63EC Three Color-coded Screw Terminals F63BF and F63FF F63AC and F63EC Case in. (1.57 mm) Cold Drawn Steel in. (1.57 mm) Cold Rolled Steel Cover in. (1.57 mm) Cold Drawn Steel in. (0.7 mm) Cold Rolled Steel Switch Pipe Connector SPDT Snap-acting Pennswitch 1 in. 11-1/2 NPT Threads Conduit Connection F63BF and F63FF F63AC and F63EC Finish Female Hub for 1/2 in. Conduit, 1/2-14 NPSM Threads Gray Baked Enamel One 7/8 in. (22 mm) Hole for 1/2 in. Conduit with 1-3/32 in. (28 mm) Knockout Ring for 3/4 in. Conduit Agency Listings UL Listed: File E5368, Guide NMFT CSA Certified: File LR948, Class Shipping Weight F63BF F63FF F63AC F63EC Individual Pack 2.5 lb (1.13 kg) 2.9 lb (1.3 kg) 2.4 lb (1.1 kg) 2.4 lb (1.1 kg) Overpack of lb (12.2 kg) 31 lb (14.1 kg) 26 lb (11.8 kg) 26 lb (11.8 kg) The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these specifications, consult the local Johnson Controls office. Johnson Controls, Inc. shall not be liable for damages resulting from misapplication or misuse of its products. Controls Group 507 E. Michigan Street P.O. Box 423 Milwaukee, WI Printed in U.S.A. 8 F63 Series Liquid Level Float Switch Product/Technical Bulletin