background image

Start-Up and Calibration 

(continued) 

15 

SC27P - Ozone Generator Drive Board LED Function   

 

           

Figure 7-1B

 

LED 

                                Function 

12V MAIN 

POWER 

When illuminated, this “Green” LED indicates that main power is supplied to the drive module up to the “on board” 
fuse of the drive board.

 

XFMR 

POWER 

When illuminated, this “Green” LED indicates that 48V Buss power is available to the drive module transformer 
(XFMR) from the “on board” fuse to the drive transformer.

 

OZONE 

OUTPUT 

The  “Amber”  ozone  output  LED  will  illuminate  when  ozone  is  being  generated.    The  LED  will  also  pulse  as  the 
output increases or decreases with either the Manual Ozone Output Control or from a Remote 4-20mA signal.

 

FAULT 

When  illuminated,  this  “Red”  LED  indicates  that  there  is  a  fault  with  the  drive  module  or  the  Ozone  Reaction 
Chamber. If this LED is illuminated, refer to the Troubleshooting Guide.  

Notes: Upon startup, the fault LED will 

remain illuminated for 30 seconds before ozone is produced. If the drive module goes to a fault condition, 
the drive board will restart every 30 seconds. If the fault is not remedied the drive module will continue to 
go into a fault mode. When the drive module is in fault mode ozone will not be generated.

 

 

SC27P Drive Board 

Figure 7-1C 

 

 

 

 

 

 

 

 

 

 

 

 

Vacuum Break

 

Check  the  water  level  in  the  vacuum  break,  making  sure  it  is 

above

  the  flapper  valve  (see  Figure  6-2).  If  water  is  not 

pressing downward on the flapper valve it  will open, causing a loss of vacuum.   A loss of vacuum  means ozone cannot 
flow from the vacuum break, which in turn can cause an ozone leak. 

Note: If the vacuum break must be refilled with 

water  disconnect  the  External  Loop  from  the  SC27P  and  shut  down  the  system  and  follow  the  steps  outline  in 
Chapter  6  “Installation  Procedures  –  Pneumatic.”  Then  re-start  the  system  by  following  the  steps  outlined  in 
Chapter 7 “Start-up and Calibration Procedures.”

 

 
 
Pneumatic Operating Parameters       

 

                     

Figure 7-2

 

SC27P                                                                

Operating Range    Optimum

 

Air prep System air flow * 

Ozone generator air flow (gauge – front control panel) 

PSI gauge (gauge – front control panel) 

Injector manifold air flow 

Injector manifold injector 

8 to 10 scfh 

 4 to 6 cfh 

9 to 12 psi 

8 to 12 scfh 

-3 to -8 in. Hg. 

10 scfh 

  6 cfh 

10 psi 

10 scfh 

-5 in. Hg. 

*  Be  sure  that  the  SCFH  flow  rate  is  regulated  to  no  more  than  10  SCFH  with  the  air  flow  gauge 
adjustment valve.  

 

Drive Board 

Fuse 

Variable Input Connector 

DC Power Input Connector 

 
 

Fault LED 

Drive Board Main Power LED 

Transformer – XFMR LED 

Ozone Output LED  

24VDC Output Connector 

 

Summary of Contents for SC27P

Page 1: ...component only Tested and certified by WQA to NSF ANSI 50 as a component only ClearWater Tech LLC Integrated Ozone Systems 850 E Capitolio Way San Luis Obispo Ca 93401 805 549 9724 Fax 805 549 0306 E mail service cwtozone com www cwtozone com Copyright 2005 ClearWater Tech LLC Reproduction of any kind is prohibited LIT135 REV093010 ...

Page 2: ...7P ozone generation system incorporates PSA oxygen concentrator it will yield the highest grams per hour at the highest concentrations Greater ozone concentration equates to higher solubility of the ozone gas in solution which will yield a greater oxidation potential Ozone Generator The ClearWater Tech SC27P self contained pressurized ozone generator is designed to supply high concentrations of oz...

Page 3: ...ace area to the amount of ozone entering the water Depending on the application and the water treatment goals a ClearWater Tech contacting system may also be required Some oxidation reactions take place so quickly that they are limited only by the rate at which the ozone is dissolved in the water Other reactions such as disinfection may require that proper ozone residual be maintained for a specif...

Page 4: ...is detectable at very low concentrations 0 02 ppm which is far below OSHA s maximum permissible exposure level of 0 1 ppm HIGH VOLTAGE WARNING CLEARWATER TECH OZONE GENERATORS OPERATE AT HIGH VOLTAGE DO NOT TAMPER WITH OR DELIBERATELY BYPASS THE COVER OR SAFETY SWITCHES BUILT INTO THE OZONE GENERATOR UNLESS INSTRUCTED TO DO SO BY THIS MANUAL IF CONTACT IS MADE WITH OPERATING HIGH VOLTAGE COMPONENT...

Page 5: ...uipment 7 The electrical supply for this product must include a suitably rated switch or circuit breaker to open all ungrounded supply conductors to comply with Section 422 20 of the National Electrical Code ANSI NFPA 70 1987 The disconnecting means must be readily accessible to the operator s but installed at least five feet from any open body of water 8 Be sure to bond ground the system using th...

Page 6: ...if so equipped In a Full Flow plumbing configuration see Figure 4 2 without recirculation locate downstream of the pH adjustment chemical injection point Adequate protection from weather dust and excessive heat Like any electronic component performance and longevity is enhanced by favorable operating conditions Also since ozone generator is air cooled a relatively dust free well ventilated area is...

Page 7: ...nical print or as dictated by equipment layout and serviceability considerations Do not secure booster pump and contact vessel to housekeeping pads at this point Dry fit plumbing as appropriate to insure proper fit and location before making permanent connections Step 2 Install a tee or plumbing saddle into the main water line after the filter if so equipped and before the flow diversion mechanism...

Page 8: ...the two holes for mounting the L bracket to the wall The bracket should be located so that the 6 clamp assembly will be approximately 12 from the top of the contact column Drill a 1 2 hole at each of the marks about 3 1 2 deep Insert a concrete anchor into each hole with the threaded end facing outward Slip the L bracket over the threaded ends of the anchors followed by a washer for each anchor Se...

Page 9: ... Base Flange Gasket Base Flange Nuts Washers 8ea Contact Column Exploded View Figure 4 4 Contact Column Installation Diagram Figure 4 3 6 Clamp Assembly Bolts nuts with bolt Nut washers 2ea Unistrut cut to length Unistrut L Bracket Protective End cap Concrete Anchors with nuts washers 2ea ...

Page 10: ...e output voltage will be 120VAC 2 amp max for a 120VAC 60Hz system or 220VAC 2 amp max for a 220VAC 50Hz system Using a 18 AWG wire from the External Contactor terminal 3 of the Electrical Hook up Box Terminal Strip to the coil side of a contactor If so required an External Contactor Neutral may also be wired using a 18 AWG wire from the Auxiliary Neutral terminal 5 to the coil side of the contact...

Page 11: ...input signal and override the setting of the manual ozone output control Based on the 4 20mA signal ozone output will increase or decrease 4mA 0 ozone output 20mA 100 ozone output The Ozone Output is indicated by the LED s on the control panel of the ozone generator see Start Up and Calibration Procedures Figure 7 1A for LED function and Appendix Section A for LED location Note If the remote 4 20m...

Page 12: ... Electrical Interface Figure 5 2 120V COIL N Power from ORP PPM pump or timer L1 Interface Relay External Loop 120VAC Signal 240VAC Signal L1 L2 240V COIL Interface Relay Power from ORP PPM pump or timer External Loop ...

Page 13: ...generator and out to drain protecting the SC27P from potential water damage All pneumatic connections have been made between the ozone generation components of the SC27P and the vacuum break The only pneumatic field connections required are between the vacuum break ozone outlet fitting and the injector manifold Follow the steps outlined below for this procedure see Figure 6 2 Step 1 Remove the vac...

Page 14: ... a ClearWater Tech vacuum test assembly to check vacuum at the injector port If no suction is present continue to close the ball valve on the injector manifold until vacuum is detected If using the vacuum test assembly check the VAC PSI gauge for vacuum If the needle is in the red zone on the pressure PSI side of the gauge gradually close the ball valve on the injector manifold until the needle mo...

Page 15: ...y through it when the LED is not illuminated which indicates ozone is being produced The External Loop does not have continuity when the LED is illuminated which indicates no ozone production Manual Control Ozone output is being controlled by the Manual Ozone Output Control when LED is illuminated Remote 4 20mA Control Ozone output is being controlled by an External 4 20mA Control signal when LED ...

Page 16: ...the drive module is in fault mode ozone will not be generated SC27P Drive Board Figure 7 1C Vacuum Break Check the water level in the vacuum break making sure it is above the flapper valve see Figure 6 2 If water is not pressing downward on the flapper valve it will open causing a loss of vacuum A loss of vacuum means ozone cannot flow from the vacuum break which in turn can cause an ozone leak No...

Page 17: ...g steps outlined in the Start Up Calibration section Pressure Check the PSI gauge located on the ozone generator cabinet door Make sure pressure is within the range shown on the PSI Gauge line of the Pneumatic Operating Parameters chart see Figure 7 2 Adjust if necessary by following steps outlined in the Start Up Calibration section Vacuum Break Water Level Check the water level in the vacuum bre...

Page 18: ...ter elements as required Note Fan filter stainless steel cover must be removed to access fan filters Depressurization Valve Rebuild the depressurization valve see Appendix Section A for location Check Valve Replace check valve located behind the system control panel see Appendix Section A for location Reaction Chambers Remove and disassemble one reaction chamber according to the steps outlined bel...

Page 19: ... screw bosses until heads are snug against the end cap Step 5 Roll the high voltage anode foil like material lengthwise preserving the longer dimension Insert the rolled anode into the dielectric Center the anode in the dielectric approximately 1 2 from either end of the glass making sure it is rolled squarely Step 6 Slide the dielectric into the heat sink cathode assembly Seat the dielectric into...

Page 20: ...or some water to be flowing from the injector during this procedure Contact Vessel Cleaning Contact Column only Inspect the diffuser slots at the top of the contact column riser tube If they are clear no further maintenance is required If the slots are fouled disassemble the column and clean as required following the steps outlined below see Figure 4 4 Step 1 Make sure the isolation valves before ...

Page 21: ...uit breaker trips Incorrect wiring See Installation Procedures Electrical Circuit breaker amperage does not match draw Replace with correct circuit breaker Unit flooded with water Assess damage correct cause and rebuild as required Receive an electrical shock Incorrect wiring See Installation Procedures Electrical upon touching the unit Unit not grounded Ground unit according to local codes Unit f...

Page 22: ...rt or debris in the ozone reaction Clean dielectric and replace O rings chamber Loose or disconnected High Voltage lead to Attach High Voltage lead to transformer transformer High temp limit If the temperature with in the SC27P system is greater than 150 F the drive modules will go to Fault mode Drive Module Main Power No power to drive module from Check main power to unit Green LED s not illumina...

Page 23: ...valve check valve Water bubbling in vacuum No vacuum See Start Up Calibration break Debris on seat of vacuum break Clean seat of flapper flapper valve See Maintenance Procedures Annual Low vacuum at injector Hydraulics Pneumatics out of See Start Up Calibration adjustment Defective check valve Replace check valve Hydraulic back pressure Back wash filter if so equipped Check for obstruction in vent...

Page 24: ... GENERATOR SPECIFICATIONS OZONE OUTPUT SCFH SC27P 34 h x 29 w x 13 d 139 lbs 27g h 6 12 scfh 10PSI Mounting Bracket Hole Measurement 16 w On Center Control Panel Access Door Control Panel Vacuum Break Cover Electrical Hook Up Cooling Fans Bonding Grounding Lug Stainless Steel Needle Valve Conduit Knockouts ...

Page 25: ...ontrol Panel Oxygen Concentrator Compressor Compressor Cooling Coil Reaction Chamber Drive Module Oxygen Concentrator Sieve Bed ATF Vacuum Break Ozone Destruct and Depressurization Valve Compressor Inlet Filter Compressor Pressure Relief Valve Power Supply Main Power Fuse F1 Motor Controlled Interlock MCI Fuse F2 External Contactor Fuse F3 Terminal Strip 1 16 Exhaust Fans ...

Page 26: ...ix continued 25 Section A Specifications SC27P Control Panel Shown ClearWater Tech SC27P Control Panel Front View Shown ClearWater Tech SC27P Control Panel Back View Pressure Switch Display Board Check Valve ...

Page 27: ...Fuse Bussmann FNM 2 2 amp 250VAC Midget Time Delay External Contactor FUSE102 Fuse Littelfuse Minifuse 297003 3 amp 32VAC Drive Board FUS66 Maintenance Kit ASP500A Part QTY Description OXS350 1 Oxygen Concentrator Replacement Compressor Inlet Filter OXS356 1 Oxygen Concentrator Compressor Rebuild Kit OXS361 1 Oxygen Concentrator Compressor Pressure Relief Valve FA40 2 Filter Fan filter element onl...

Page 28: ...27 APPENDIX Section C Logic Schematic Shown Electrical Schematic SC27P Line Side Note This system is not dual voltage rated System voltage is 120VAC 60Hz or 220VAC 50Hz ...

Page 29: ...28 APPENDIX Section D Drive Module Input Voltages Shown HO Drive Module ...

Page 30: ...enced with the product and or part must be clearly described The RGA number must appear prominently on the exterior of the shipped box es The product and or part must be packaged either in its original packing material or in comparable and suitable packing material if the original is not available You are responsible for paying shipping charges to CWT and for any damages to the product and or part...

Reviews: