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16

 

  

 

 

Figure 7 

 
If burner characteristics do not match the above, check for proper air box pressure.  Also look 
for accumulation of lint and other foreign material at fan air inlets. Typical air box settings are as 
follows (settings in brackets denotes condensing application): 
 

AIR BOX “ W.C. (with burner firing)

FLUE SWITCH RECYCLE POINT “ W.C 

 

MODEL 

Left Burner 

Right Burner 

Left Burner 

Right Burner 

800 

1.4 (1.7) 

1.0 (1.4) 

1000 

1.9 (2.2) 

1.5 (1.9) 

1200 

0.9 (1.1) 

0.9 (1.1) 

0.8 (0.9) 

0.7 (0.9) 

1400 

0.9 (1.1) 

1.4 (1.7) 

0.7 (0.9) 

1.1 (1.3) 

1600 

0.9 (1.1) 

1.9 (2.2) 

0.7 (0.9) 

1.5 (1.8) 

1800 

1.6 (1.9) 

1.6 (1.9) 

1.2 (1.6) 

1.2 (1.6) 

2000 

1.9 (2.2) 

1.9 (2.2) 

1.5 (1.9) 

1.5 (1.9) 

 
Depending on field conditions air box pressures will have to be adjusted accordingly. Always set 
the appliance for a CO

2

 level in the range of 7.5% to 8.5 %. 

 
A qualified service technician should follow this procedure when burner needs cleaning. 
 

1.  Shut off power and close main manual gas valve.  

  Allow burner to cool before removal. 

2.  Remove access cover screws.  

  Disconnect pilot gas at bulkhead fitting.  

  Disconnect ground wire and ignition wire. 

  Remove two wing nuts holding down burner. 

  Gently pull down and forward to disengage burner. 

  Remove burner being careful to not damage the igniter or ground electrodes. 

3.  Thoroughly clean burner. Check all ports and air channels for blockage. 

Summary of Contents for MICOFLAME 2 Series

Page 1: ...r appliance WHAT TO DO IF YOU SMELL GAS o Do not try to light any appliance o Do not touch any electrical switch do not use any phone in your building o Immediately call your gas supplier from a neigh...

Page 2: ...8 RELIEF VALVE 10 9 FREEZE PROTECTION 10 10 WARNING REGARDING CHILLED WATER SYSTEMS 11 11 PIPING OF SYSTEM TO BOILER FIG 4 11 12 PLACING BOILER IN OPERATION 13 13 IGNITION SYSTEM SAFETY SHUT OFF DEVI...

Page 3: ...ty having jurisdiction the installation must conform to the Standard for Controls and Safety Devices for Automatically Fired Boilers ANSI ASME CSD 1 The qualified installer shall instruct the end user...

Page 4: ...installed above the level of the building s radiation system a low water cutoff device must be installed in the boiler outlet at the time of installation Some local codes require the installation of a...

Page 5: ...tion leading to reversal of the natural draft action of the venting system Under these circumstances an engineered air supply is necessary If the heater is to be installed near a corrosive or potentia...

Page 6: ...fans must be running in order for the appliance to proceed to trial for ignition MicoFlame series 2 is supplied with more than one burner may use burners that are not of identical size in order to acc...

Page 7: ...to operate at inlet gas pressures not exceeding PSI 14 W C If higher pressures are present consult the gas company for correction When pressure testing the gas supply piping at pressures above PSI th...

Page 8: ...upported approximately every 4 feet to prevent sagging and maintain a minimum upward slope of per foot from the boiler to the vent terminal When an existing boiler is removed from a common venting sys...

Page 9: ...structions from the chimney and flue which might impede draft action Replace any damaged or deteriorated parts of the venting system A qualified service technician should follow this procedure when in...

Page 10: ...efficient and is considered to be a category II or IV appliance Three venting options are available for this boiler in both condensing and non condensing configurations See Figure 2 for details Pleas...

Page 11: ...ACNA AFTS 100 73 Standard When venting through unheated spaces with single wall vent insulation should be wrapped around the vent pipe to prevent flue gas condensation inside the vent Periodically che...

Page 12: ...inst damage that could be caused by malfunctioning controls or excessive water pressure If a relief valve is not used warranty is void The relief valve is to be located as near as practical to the out...

Page 13: ...tic means to prevent gravity circulation of chilled water through the boiler Chilled water in the boiler will create condensate on the boiler tubes which will collect in the combustion chamber causing...

Page 14: ...radiation level it must be provided with a low water cutoff device at the time of boiler installation Available from factory A pressure relief valve is supplied with each MicoFlame series 2 boiler Th...

Page 15: ...ance filled with air Start up boiler following instructions provided Operate entire system including pumps and radiation for at least 1 hour Check water level in expansion tank If level exceeds of tan...

Page 16: ...he inlet temperature is greater than 110 F but not greater than 140 F no further adjustment is required e Check the inlet temperature after 5 minutes and make final adjustments 15 INSTANTANEOUS WATER...

Page 17: ...t burner every six months for proper flame characteristics 16 1 MAIN BURNER The main burner figure 7 should display the following characteristics Acceptable CO and CO2 levels for complete combustion L...

Page 18: ...1 6 1 9 1 6 1 9 1 2 1 6 1 2 1 6 2000 1 9 2 2 1 9 2 2 1 5 1 9 1 5 1 9 Depending on field conditions air box pressures will have to be adjusted accordingly Always set the appliance for a CO2 level in th...

Page 19: ...e electrode does not appear overheated or fouled with carbon It may be necessary to clean the ignition electrode using steel wool Once the pilot appears to be properly set reinstall it into the applia...

Page 20: ...ction 15 of this manual After the first season of operation inspect the heat exchanger and venting Follow the detailed instructions in section 6 of this manual CAUTION Label all wires prior to disconn...

Page 21: ...If pilot fails to light and you suspect air in the line close the main manual valve and repeat lighting steps 1 thru 5 7 Once the pilot lights it should envelope the ignition rod and ground electrode...

Page 22: ...und electrodes are positioned properly Clean with steel wool if necessary Verify that back of burner box is fully engaged into the retaining slot in the combustion chamber base 5 Pilot lights but main...

Page 23: ...ICAL DIAGRAMS Each MicoFlame series 2 boiler will be provided with its own wiring diagram to guarantee that any options ordered with the unit are properly detailed The following diagram 99 5072 and 99...

Page 24: ...22...

Page 25: ...23...

Page 26: ...24 22 EXPLODED VIEW...

Page 27: ...25 23 MICO FLAME REPLACEMENT PARTS LIST...

Page 28: ...standard warranty 2 Years six through ten replacement purchase price pro rated at the following schedule Year six 60 Year seven 65 Year eight 70 Year nine 75 Year ten 80 of the current list price of t...

Page 29: ...t water heaters and heating boilers as well as a into every single unit For more information supplier of specialty HVAC products Our service line is open 24 hours 7 days a week on our innovative produ...

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