16 control parts photos - US Forest Service - fs.fed.us · PDF filethan 1980 have gast tube...

USDA Forest Service

06/18/2003 Control Systems Parts Photos Page - 1/15

1.01 USFS REGION 6 CONTROL SYSTEM COMPONENT PARTS PHOTOS: A. Shown below are pictures of control system components used in R6 USFS Control panels: B. Free Siemens control system training http://www.sea.siemens.com/step/default.html

1. Typical USFS Water system well pump to tank

control panel. Parts shown on pages below are used in this panel. Battery Box Test Swtch Box GFI Thermostat Main Breaker Fuses Circuit Breakers Time delay relays DC Relays AC Relays Diode 24VDC Power Supply Coyote low flow protector Motor Circuit Protector Well Pump Motor Starter Chlorinator Motor Starter Pump Motor start Capacitors Strip heater Telephone Jack for troubleshooting Lightning protectors for control cable

Service Lightning protector Control transformers

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2. Control panel Front Door Main Breaker Sonalert AC Power on Light DC Power on Light Genreal alarm light Alarm reset pushbutton Set point controller Alarm battery test pushbutton Low flow alarm light Tank Low Level Alarm Tank Hi Level alarm Well Pump Low Flow Well Pump Fault Well pump run light

Running time meter Operation counter

Well pump Overload/ breaker trip Well pump HOA selector switch

Chlorinator HOA selector switch

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3. .24Volt DC Power supply http://www.power-one.com/

4. .Transient Voltage Surge Suppressor http://www.itvss.com/

5. Carbon Lightning protector for control cable with black arcs from lightning strike

6. lightning Protector blocks with gas tube or

carbon gap in pre 1980’s panels. Panels newer than 1980 have gast tube protectors

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7. . lightning Protector blocks with gas tube or carbon gap in pre 1980’s panels. Panels newer than 1980 have gast tube protectors. This model has been in use since about 1980

8. .24 Volt AC Relay plug in Deltrol 3PDT 10A. Most common control relay used in all panels. Note LED on base for indication that relay is energized.

9. 24VAC Time Delay Relay 2PDT 10A Time

Mark.. Time is set by dip switches 1-1023 seconds range. http://www.time-mark.com/index.php

10. 24VDC relay used in water systems and sewage

pump stations for low current application over telephone cable for several miles for water tanks and intrinsically safe areas. Early units 1975 – 1990 Potter Brumfiled. 1990 – 2000 Midtex. 2000 now. Circuit Works.

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11. Motor Circuit Protector used for all motors with instantaneous trip small red dial lower left corner is adjustment point for trip current. Wires coming out of left side are for breaker trip alarm. New units are Cutler hammer older units are Westinghouse. http://www.cutler-hammer.eaton.com/unsecure/cms1/TB01200001E.PDF

12. Motor Circuit Protector used for all motors with

instantaneous trip small red dial lower left corner is adjustment point for trip current. Wires coming out of left side are for breaker trip alarm. Older units are Westinghouse.and are black

13. Enclosed Motor Starter in metal box for shock

protection, MCP motor circuit protector mounted above for each motor. http://www.sea.siemens.com/contrlbu/upld/files/p57-58.pdf

14. Internal contacts of motor starter, Note burned

contacts. Never file contacts. If they are burned replace all 4 sets of contacts and the springs.

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15. Two control transformers mounted in lower part of picture. 240VAC/ 120VAC and 120VAC/24VAC for control voltage.

16. Test Switch panel for all floats, pressure

switches, and other sensors to come into panel to allow operator to simulate sensor operation without disconnecting any wiring. Positions are: Close: simulates sensor closing Open: Opens sensor circuit Auto: Automatic operation

17. Temperature switch and guage for monitoring blower pressure and temperature.

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18. Digital water or sewage flow meter. Yokogawa. Unit has 4-120ma output to run strip chart recorder and has gallon totalizer in display and instantaneous flow.

19. 6 dial Time Clock for multiple system

20. System pressure guage, and shut off and bleed

valves. Make sure gauges are shut off and that they are at 0 pressure when not reading to make them last longer and more accurate. Do not let gauges monitor system pressures constantly, only when you look at them.

21. Diode Used in system power supply

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22. 24V VDC Gell Cell Battery for battery backed up alarm. These last 3-4 years. Note split case on this unit. Replace every 3-4 years.

23. 0.5 A Fuses used in all small ameperage

circuits on telephone cable going outside of panel and in intrinsically safe circuits.

24. Red Indicator light with 10 segment LED

Lamp. IDEC 24VAC or 24VDC life 500,000 hours and does not burn out, will retrofit all panels built since 1975. Colors:Red, Green, White. Red lights are all alarms

25. White Indicator light with 10 segment LED Lamp. IDEC 24VAC or 24VDC life 500,000 hours and does not burn out, will retrofit all panels built since 1975. Colors:Red, Green, White. White lights are for system Power

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26. Green Indicator light with 10 segment LED Lamp. IDEC 24VAC or 24VDC life 500,000 hours and does not burn out, will retrofit all panels built since 1975. Colors:Red, Green, White. Green lights are for motors on or for other items such as solenoid valves open.

27. 3 Phase Monitor relay, used for protection of motors from phase loss, Phase reversal, low voltage, high voltage. Note adjustments for voltage and for time delay on dropout.

28. Control panel shut off and bleed valves used for

incoming air lines to shut off and bleed pressure switches and gauges.

29. Pressure Switches, Mercoid mercury switches

30. Operation Counter, counts each time motor

starts,

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31. Running time Meter Records motor run time to 0.1 hour. Energizes every time motor turns on.

32. Hand – Off –Auto Selector Switch Used for

operational control of motors and other devices such as solenoid valves.

33. Contact blocks on backs of selector switches

and pushbuttons. These switches turn on motors and other devices thru relays.

34. Strip Chart recorder used for recording flows and levels. 4-20ma Rustrack 288 recorder

35. Setpoint Controller universal controller used for

water tank and sewage pu p station level controls, temperature, flow PH DO or any other kind or monitoring alarming and digital readout. Yokogawa UT320 4-20ma input, hi/lo alarms and on off control and PID loop control in one unit about $350

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36. Stainless Steel water tank level switch used in potable water tanks made by GEMS Co. Gems Level Switch Model LS-750 part # 197433. needs 24VDC low current relay to operate. Will interchange with any mercury float in current tanks. Has both NO and NC connections.

37. Water Tanks or sewage Level transducer Made by Gems Sensors 4-20 ma 2 wire transmitter used in potable water tanks and sewage systems and deep wells to measure and control pumps with setpoint controller shown above

38. Rotofloat Brand mercury float switch to be used in sewage pump stations only. Not for potable water. Used for turning on pumps. Available in NO and NC versions.

39. Control panel circuit breakers. Ususally from 1 A to 20A. Breakers on right are Westinghouse. Small breakers on left are less than 10A and are not used in current deisgns and are connectron brand.

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40. Control panel terminal strips for connection of motors and other sensors, usually located on panel bottoms.

41. Poewr panel in control buildings for circuilt

breaker protection of builind loads, lights outlets heaters. This is NOT USED for motor circuilt breakers as standard panel breakers are not specifically designed for motor protection. MCP instantaneous breakers are used for motor protection.

42. 24Hr 96 pin time clock ususlly used for control of lighting or other timed applications such as backwash in some treatment units.

43. Diode and heat sink used in battery back up charging circuits.

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44. Typical panel layout for motors, with running time meter, operation counter, overload/breaker trip light, run light and hand – off – auto selector switch. 1 line of controls for each motor.

45. Air operated diaphram valve where automatic control of valving is required used in conjunction with 24VAC pilot air operated solenoid valves.

46. 24VAC air solenoid valves, used to switch compressed air for large air operated diaphragm valves or butterfly valves. Control panel sends 24VAC signal to open valve to allow air to open larger valve.

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47. Flow Switch Mcdonnel Miller FS7-4SV stainless steel flow switch used for pump low flow protection. Switch closes on no flow starting a time delay. If pump does not move water in 10 seconds locks pump off and sounds alarm.

48. Chlorine Solution Tank Low level Alarm Switch US Flite U 21780 float switch. Mounts on lid of chlorine solution tank. When tank is 6” from empty switch closes causing alarm in control panel, and shutting off well pump and chlorinator.

49. Same as above with picture inside chlorine tank.

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50. Frankline Subtrol This unit is made by Franklin electric to protect submersible well pumps from running dry or from rapid cycling. If no flow is detectrd, unit shuts pump off for a time then restatrts. Unit works by measuring motor current. No probes are required to us this in a well.

51. Intrinsically safe barriers for sewage pump stations Data signal protectors for transient protection of 4-20ma transducers.

52. Rubber Switchboard matting on floor in fornt of each panel for shock protection. Minimum 5KV insulation value.

2.

16 control parts photos - US Forest Service - fs.fed.us · PDF filethan 1980 have gast tube...

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