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14

revised 09/09

Smog-Hog

SG Series Model

10. TROUBLESHOOTING  

   the SG unit can consist of one or more modules. each 

module represents an independent collection system, 

of 2 unicells in series with a power pack enclosure. the 

power pack enclosure indicator light is the reference 

in determining the module status. the indicator light 

illuminated represents a working module, usually within 

high voltage specifications.  an indicator light flashing or 

not illuminated exhibits an abnormal condition. 

 TOOLS REQUIRED 

    • Multimeter 
    • High voltage probe accessory for the multimeter 
    •  High voltage test cables (2), 3’ in length with test clips 

at each end 

    • Basic hand tools
    • One power pack (UAS Part Number 21-1216) 
    •  AC cable with three prone plug (for the wall 

receptacle), opposing end of cable should have two 

connectors for the power pack and a test clip for the 

ground wire.  the ground wire should be secured to 

the ground stud on the power pack. 

PERFORM BEFORE TROUBLESHOOTING 

   the following should be checked to the module(s) 

in which the indicator light(s) is flashing or is not 

illuminated. corrections should be completed and parts 

replaced. 

       •  Toggle switch is in the on position to the power 

pack enclosure. 

       •  Check adjustment of the push rod which engages 

the interlock switch refer to Section 9.6. 

       •  Proper electrical alignment to the unicell 

components. refer to figure 20. 

       •  The proper number of unicells are installed to the 

module. 

       •  Unicell components have a moderate to extreme 

contaminant build up, manually clean the unicell 

components. 

       •  Ionizer wires and tension springs missing or 

broken, remove broken wires and springs from the 

drain sump. 

       •  Ionizer standoff insulators, cell triangular 

insulators, and or door feed through insulators 

display moderate to extreme contaminant build 

up, broken or carbon tracked insulators (imbedded 

black streak which cannot be removed by 

cleaning, replace insulator).  

10.1 TROUBLESHOOTING PROCEDURE 

caution 
  

Risk of electrical shock. The high voltage circuits 

to the ionizer and collector should be grounded 

before removing the power pack, high voltage 

wires, door feed through insulators and unicell(s). 

The grounding procedure can be accomplished 

by waiting one minute after placing the toggle 

switch in off position or by referring to Figures 

14 and 15. An internal resistor within the power 

pack discharges the residual high voltage. The 

grounding procedure statement is not identified 

within the troubleshooting steps but should be 

performed. The power pack total current output 

is limited to a maximum of 5 milliamps to assure 

personnel safety.  

 

   Power pack enclosure(s) service voltage is 

120VAC. This can be lethal. Voltage (120 VAC) 

is present within the power pack enclosure 

even though the toggle switch is placed in the 

off position. 

 

HIGH VOLTAGE SPECIFICATIONS: 

   ionizer circuit operating range: 10.0 to 11.8 KVDc 
   collector cell circuit operating range: 5.0 to 7.5 KVDc  
   there are two factors which will elevate ionizer voltages 

above 12.0 KVDc. 

       1.  the ionizer wires are heavily coated with 

contaminant (two to three times or greater, 

the diameter of the wire). this will decrease 

collection efficiency. 

       2.  there are “run away” voltages to the power pack 

requiring power pack replacement, above 12.0 

KVDc to the ionizer circuit, and 7.5 KVDc to the 

collector cell circuit. 

   there will be continuous cell arcing if cell voltages 

exceed 7.5 KVDC. This is also caused by “run away” 

voltages to the power pack requiring power pack 

replacement. a high voltage measurement can be 

performed by removing both the high voltage wires from 

the power pack to determine high voltage output or 

refer to “testing the Power Pack” in the “Bench testing 

Procedure.” the high voltage measurement should not 

exceed “High Voltage Specifications.” 

   if there is a dead short condition or arcing condition 

usually the problem is within the collector cell. the 

power pack should be confirmed that the power pack 

is operational, start with step (1), before proceeding to 

the step (2). in the event of a dead short condition the 

power pack is designed to “shut down” the high voltage 

to the ionizer and collector cell circuits causing the 

!

  CAUTION

!

  WARNING

Summary of Contents for SMOG-HOG SG-2-A

Page 1: ...OWNER S MANUAL SMOG HOG ELECTROSTATIC PRECIPITATOR SG SERIES MODEL SG 2 ...

Page 2: ... contacting UAS UAS ORDER _________________________________________________________________ UNIT MODEL ________________________________________________________________ UNIT SERIAL _________________________________________________________________ HIGH VOLTAGE POWER PART NUMBER _ _________________________________________ SYSTEM ACCESSORIES ____________________________________________________________...

Page 3: ...5 4 Motor Variable Pitch Pulley Adjustment 7 5 5 Blower Belt Tension Adjustment 7 5 6 Power Pack Operation 7 5 7 Power Pack Enclosure Push Rod and Grounding Bar 8 5 8 In Place Cleaning Optional 8 5 9 Placing SG On Line 9 6 MAINTENANCE AND MANUAL CLEANING 9 6 1 Normal Maintenance 9 6 1 1 Check Power Pack Enclosure Indicator Lights 9 6 1 2 Check Component Appearance Weekly 9 6 1 3 Perform In Place C...

Page 4: ...ii ...

Page 5: ...rough Insulators 12 9 3 Indicator Light 12 9 4 Blower Lubrication 12 9 5 Component Access Door Gasket Replacement 12 9 6 Power Pack Enclosure Push Rod Adjustment 13 10 TROUBLESHOOTING 14 10 1 Troubleshooting Procedure 14 10 2 High Voltage Probe Measurements 17 10 3 Bench Test Procedure 17 10 4 Troubleshooting Guide 19 11 ORDERING PARTS 21 11 1 Replacement Parts 21 11 2 Returning Parts 21 11 3 Frei...

Page 6: ...eres Use non flammable cleaners Keep flammable materials and vapors such as gasoline away from the unit The unit should be inspected frequently and contaminants removed to prevent excessive accumulation which may result in flash over or fire damage Operate only in a safe and serviceable condition Operating temperature to the air stream should not exceed 120 F DANGER WARNING WARNING CAUTION C A U T...

Page 7: ...lower begins to move air through the unit 2 INSPECTION OF EQUIPMENT Upon receipt of your SMOG HOG SG check carefully for possible shipping damage Any damage to carton skid etc may be a warning to you that rough handling has caused internal damage Units supplied with accessories such as an In Place Cleaning System will arrive in multiple cartons Check cartons versus bill of lading The detergent con...

Page 8: ...2 Revised 09 09 Smog Hog SG Series Model MODEL SG 2 MODEL SG 4S ...

Page 9: ...3 Revised 09 09 Smog Hog SG Series Model MODEL SG 4T MODEL SG 6 Figure 2 Installation Dimensions in cm ...

Page 10: ... Ceiling Mounting SG units are designed for suspended mounting using 1 2 all thread rod as shown in Figure 4 Customer should take care to ensure that roof trusses are adequate to support unit weight and support members In Figure 4 angle iron cross members are secured between roof trusses Turnbuckles greatly simplify rod installation Rod length should be kept to a minimum 36 preferred All SG units ...

Page 11: ...with in place cleaning systems refer to In Place Cleaning Owner s Manual Installation should comply with all state and local codes If no codes apply installation should comply to National Electrical Code Refer to Section 12 2 for wiring diagrams Figure 5 Drain and Trap Installation CAUTION When electrical control panels are supplied by others an electrical interlock should be provided for the SG p...

Page 12: ...as pre and after filters if the SG is not equipped with In Place Cleaning The SG inlet plenum if supplied by UAS could have filter media or impingement filters The inlet plenum should be inspected that all filters are installed 5 2 Blower Rotation For proper airflow the blower should be operating in the correct direction If the blower is operating in the reverse direction air will move in the prop...

Page 13: ...leys using straight edge and square 9 Set belt tension using a belt tension gage Improper blower speeds adversely affect system performance Contact the factory before adjusting motor variable pulley setting 5 5 Blower Belt Tension Adjustment The drive belt tension adjustment is critical within the first 24 hours of the system exhaust blower operation During this 24 hour period the initial stretch ...

Page 14: ... limit switch 4 refer to Figure 11 Upon opening the component door 10 the push rod 5 is released from the unicell endplate 6 and spring 7 compression is relieved breaking the contact of the push rod extension 1 from the ground bar 2 placing AC voltage off line to the power pack and causing the grounding bar to contact the acorn nut 8 refer to Figure 12 When opening the power pack door 3 the spring...

Page 15: ...ry system equipment refer manufacturer s owner s instructions for proper operating procedures 6 MAINTENANCE AND MANUAL CLEANING Figure 14 Grounding the Collecting Section Figure 15 Grounding the Ionizing Section CAUTION The SG unit should be inspected frequently and collected contaminant removed from the system regularly to prevent excessive accumulation which may result in a flashover or risk of ...

Page 16: ...a cleaning solution per the detergent manufacturer s directions More or less detergent may eventually be required for effective cleaning at reasonable detergent cost The recommended factory detergent concentration is 5 20 1 CAUTION Never mix caustic and alkaline detergents for manual or in place cleaning Detergent mixing could cause rapid heat release gel formation or some other undesirable condit...

Page 17: ...ffective cleaning including water heating detergent injection agitation rinsing and drying 7 4 Other Cleaning Considerations The previous methods address the cleaning of unicells and filter media The SG cabinet should also be periodically cleaned i e during normal planned downtimes to reduce contaminant build up High voltage output of the power packs should also be checked when manual cleaning is ...

Page 18: ...light which is connected to wires 9 and 2 3 Remove indicator light installation nut The indicator light located on each power pack enclosure is polarity sensitive For proper operation the two wires from the indicator light should be connected as follows red wire connected to 9 wire from the power pack black wire connected to 2 wire from the power pack If the wires are reversed the indicator light ...

Page 19: ...ove existing gasket making sure to scrape off any residual silicone sealant 2 Trim one edge of gasket neatly and evenly 3 The door gasket internally has three lips to one side of the gasket and one lip to the other side The door gasket should be installed with the three lips towards the interior of the cabinet 4 The door gasket should be formed to the complete cabinet flange before applying silico...

Page 20: ...ge circuits to the ionizer and collector should be grounded before removing the power pack high voltage wires door feed through insulators and unicell s The grounding procedure can be accomplished by waiting one minute after placing the toggle switch in off position or by referring to Figures 14 and 15 An internal resistor within the power pack discharges the residual high voltage The grounding pr...

Page 21: ...ting the high voltage wires from contacting the power pack connectors Place the toggle switch in the on position and engage interlock switch the indicator light should be illuminated If the indicator light is illuminated the power pack is operational proceed to step 2 If the indicator light is flashing high voltage wires 8 and 7 disconnected from the power pack the power pack requires replacement ...

Page 22: ...ntacting the opposing cell plate s Warped cell plate s which could be due to high duct operating temperature consult UAS Carbon tracking to the cell high voltage feed through insulator and or cell triangular insulators imbedded black streak which cannot be removed by cleaning replace insulator Surface oxidation to unicell component requiring a replacement Unicell is structurally weak loose steel r...

Page 23: ...Bench Testing may also be required Low ionizer voltage will decrease the collector cell voltage but low cell voltage will not affect the ionizer voltage 4 Engage the interlock switch and place the tip of the high voltage probe to the collector cell door feed through insulator bolt The high voltage measurement should be 5 0 to 7 3 KVDC If the collector cell voltage is below specifications refer ste...

Page 24: ...nect the other high voltage wire use as a ground wire to the metal frame of the unicell cell and to the ground stud on the power pack 4 AC cable should be connected to the power pack connectors 5 and 6 with ground wire secured to the ground stud on the power pack 5 Connect AC cable plug to the wall outlet 6 Measure high voltage with the high voltage probe at the contact spring cell Collector cell ...

Page 25: ... not properly electrically aligned Unicell s have a moderate to extreme contaminant build up Power pack has failed Power pack enclosure s push rod assembly is not properly adjusted Fuses have failed to the power pack circuit Unicells are not properly electrically aligned Air volume ACFM is not within specifications RECOMMENDED SOLUTIONS Place disconnect switch in the on on position Press the unit ...

Page 26: ...ULATOR ASSEMBLIES 2 37 0026 INSULATOR ONLY 2 6 37 0028 IONIZER STANDOFF INSULATOR 4 7 03 0559 IONIZER WIRE SPRING 20 8 03 0738 IONIZER WIRE 10 MIL SST 10 9 30 0387 CELL CONTACT SCREW 1 10 30 0384 FLAT WASHER 1 4 SST 1 11 36 0012 CELL CONTACT SPRING 1 12 37 0061 CELL TRIANGULAR INSULATOR 8 13 10 0158 WIDE PLATE GND 37 14 10 0157 NARROW PLATE 38 15 36 0012 GROUND SPRING DOOR 1 16 36 0142 SCREW 8 32 ...

Page 27: ...4647 For prompt service please specify 1 Unit Model No nameplate 2 Unit Serial No nameplate 3 Part No or Part Description see Illustrated Parts 11 2 ReTURNING Parts When returning parts directly to UAS call UAS for a return material authorization number RMA This number should be on the package being returned This assures prompt handling and service Replacement parts are listed in Figure 20 11 3 FR...

Page 28: ...ng Diagram SG Standard Units Without Cleaning Magnetic Starter NOTE CUSTOMER TO PROVIDE STARTER WITH PUSH BUTTON STATION BETWEEN TERMINALS AND 1 7 LEGEND WIRING BY CUSTOMER H SUPPLIED BY CUSTOMER H H OPTIONAL START STOP STATION TERMINAL IN ELECTRICAL BOX u SG 4T UNITS ONLY 12 APPENDIX 12 1 WiRING DIAGRAMS ...

Page 29: ...STATION BETWEEN TERMINALS AND 1 7 LEGEND WIRING BY CUSTOMER H SUPPLIED BY CUSTOMER H H OPTIONAL START STOP STATION TERMINAL IN ELECTRICAL BOX u SG 4T UNITS ONLY 12 1 WiRING DIAGRAMS Wiring Diagram SG Agency Certified Units Without Cleaning Manual Starter Wiring Diagram SG Power Pack Enclosure ...

Page 30: ...9 Smog Hog SG Series Model 16 17 12 13 15 35 4 28 26 29 34 19 22 18 24 25 23 1 20 21 31 30 27 31 1 32 33 8 1 5 7 6 2 3 9 10 11 14 12 3 Remote Start Stop Assembly 20 3032 optional 12 2 POWer pack enclosure illustration ...

Page 31: ...bly 2 37 0026 Door Feed Through Insulator 2 19 30 0398 Round Head Screw 10 32 x 4 SST 2 20 30 0412 Lock Washer 10 EXT Tooth SST 2 21 30 0367 Fender Washer x 1 1 2 SST 2 22 35 0013 Spacer 2 23 30 0310 Pal Nut 5 8 16 2 24 30 0003 Hex Nut 10 32 x 1 4 25 30 0249 Hex Cap Nut 10 32 SST 2 26 20 1239 Interlock Switch SPST N O 1 27 10 1077 Mounting Switch Bracket L R 1 10 1076 Mounting Switch Bracket R L 1...

Page 32: ... wear and tear This warranty will be void with respect to equipment that is subject to unauthorized repairs or modifications UAS makes no warranty as to goods manufactured or supplied by others This warranty is subject to any limitations in UAS quotation and may not be modified except by a written instrument signed by the President or Vice President of Sales of UAS THIS WARRANTY IS EXCLUSIVE AND I...

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