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PV500-9 04-2000

(5)

Section 9

REMOVAL OF THE NOZZLE ASSEMBLY

(EXCEPT “L” SERIES BURNERS)

Figure 9-2

ELECTRODE POSITIONS

“L,P,Q,R,S,T” SERIES BURNER

Figure 9-3

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Summary of Contents for FIREPOWER

Page 1: ...ket 19 Ignition transformer 33 Air shutter 6 Blast tube screw 20 On off switch 34 Union 7 Blast tube 21 1 4 NPT pressure port plug 35 Flame safeguard control 8 Nozzle assembly 22 Motor mounting plate 36 Flame cone 9 Nozzle mount bolt 23 Motor relay or starter 37 Manual gas valve 10 Air inlet cone 24 Pressure plate 38 Lifting eye bolt 11 Air screen 25 Primary gas ports 39 Power connector 12 Fan whe...

Page 2: ...ent of burner electrodes be required certain procedures must be followed In all cases removal of the electrodes is accomplished by loosening the electrode mounting bracket retaining screw Draw the electrodes out of the nozzle assembly through the holes in the pressure plate 10 Inspect the electrodes for cracked ceramics or loose retaining studs that hold the wire within the ceramic Using supplied ...

Page 3: ...itch on the side of the control enclosure assembly and the toggle switch on the burner If the operating control switches are closed the burner should come on and pre purge begin B If nothing happens check the control to be sure it is not in the tripped position and reset it by pushing flame safeguard reset button The burner should pre purge for not longer than thirty seconds The TFM series control...

Page 4: ...ster in 1 4 test opening and take CO reading CO should not exceed 03 A reading greater then 03 indicates lack of air Open air shutter slightly and take readings until CO is within proper range Optimum reading is no CO F If air shutter has been changed during CO test take a final CO2 reading G Insert stack temperature gauge in 1 4 test opening and read gross stack temperature Temperature should be ...

Page 5: ...PV500 9 04 2000 5 Section 9 REMOVAL OF THE NOZZLE ASSEMBLY EXCEPT L SERIES BURNERS Figure 9 2 ELECTRODE POSITIONS L P Q R S T SERIES BURNER Figure 9 3 ...

Page 6: ...Make all adjustments with linkage in the low fire position CAUTION Do not allow the modulating motor to push the air damper past the full open or full closed position while making adjustments Damage will occur Record damper positions from indicator dials and hold linkage rod in ball joint with fingers as motor actuates to eliminate this risk After correct damper movement is determined tighten ball...

Page 7: ...9 04 2000 7 Section 9 Figure 9 6 NOTE Nomograph is limited for use with Natural Gases with the following characteristics Heating Value gross Btu SCF 970 1100 Specific Gravity 0 57 0 70 Ultimate CO2 11 7 12 2 ...

Page 8: ...ND FLUE TEMPERATURE FOR L P GAS STEADY STATE EFFICIENCY CAN BE DETERMINED FROM THE FLUE LOSS Figure 9 7 NOTE Nomograph is limited for use with L P Gas with the following characteristics Heating Value gross Btu SCF 2466 2542 Specific Gravity 1 522 1 574 Ultimate CO2 13 73 13 82 ...

Page 9: ...if supplied is correct for the voltage and power VAC being supplied E Occasional low gas supply pressure Have local utility correct 3 BURNER MOTOR RUNS BUT PILOT DOES NOT LIGHT A Gas supply to burner shut off make sure all manual gas supply valves are open Automatic high pressure valve at meter such as Sentry type tripped shut due to high gas pressure reset valve and correct cause for trip out B P...

Page 10: ...ize as required or raise supply pressure to compensate for small line Do not raise pressure so high that under static no flow condition the pressure exceeds the maximum allowable pressure to the gas train components on the burner F Burner gas train components sized too small for supply pressure Increase component size as appropriate or consult factory G Automatic gas valve not opening fully due to...

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