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Summary of Contents for 201CRD

Page 1: ...bustion head assembly which permits regulation of the air pattern inthe flame front area for optimum velocity with symmetrical distribution whether the firing rate be at the low intermediate or high portion of the firing range The usual lack of turbulence at the lower firing range inother burners has been overcome and the adjustment feature tunesout instabilitiesandroughstarts inherent in fixed he...

Page 2: ...e positive and quieter air delivery COUPLING Flexible type oil resistant short length with slip on end fittings for easy service CONTROLS Thermostat and limit control 120 volt 60 Hz burner mounted primary relay with cadmium cell flame de tector Complies with UL requirements SHIPPING WEIGHT Approximately 65 lbs DIMENSIONS ARE APPROXIMATE MOUNTING PLATE TYPICAL FLANGE APPLICATIONS EFFECT OF BACK PRE...

Page 3: ...d Use of a small blower wheel fan operating at 3450 rpm provides a more positive yet quiet air flow which does not yield to normal draft variations and therefore assures a more constant air fuel ratio for dependably clean combus tion day after day Models 200CRD and 201CRD are identical in design except that the 201CRD has a larger diameter blower wheel and a higher firing range Model No Blower Whe...

Page 4: ...s are also reduced Table 1 page 3 shows the recommended minimum in side dimensions for refractory brick refractory pre cast and pre formed refractory fiber chambers Due to their quick warm up properties the lightweight insulating type materials are slightly preferable although these burners show less dependence upon refractory temperature than previous models Refractory materials in boilers and fu...

Page 5: ...nefit to good heat distribution in certain boiler or furnace designs Table 2 MINIMUM DIMENSIONS RECOMMENDED IN BOILERS FIRED WITHOUT REFRACTORY CHAMBERS Inches 1 Firing Rate GPH 2 Length L With Target 3 Length L Without Target 4 Width W 5 Dimension C 6 Dimension D 2 00 15 18 13 5 5 6 5 2 50 17 21 14 6 0 7 0 3 00 20 24 15 6 0 7 5 3 50 23 27 16 6 5 8 0 4 00 25 30 16 6 5 8 0 4 50 27 32 17 7 0 8 5 5 0...

Page 6: ...d the unwired black lead in the control The ther mostat or operating control if used is wired to T and T Otherwise jumper T and T When the primary control is mounted on the boiler or furnace the motor transformer and oil valve connections are joined in the junction box mounted on the motor 115 20V 60 Hz SUPPLY THERMOSTAT OR operating CONTROL LIMITS WHITE KEY YELLOW FACTORY WIRED 8Y CARLIN FIELO WI...

Page 7: ... 20 5 00 15 i6 Vis 100 Table 4 RECOMMENDED SETTINGS FOR MODEL 201CRD 53 4 x 4 Blower Wheel Firing Rate GPH Retention RingSetting Inches on Scale Dimension A Air Shutter Opening Percent 4 00 Vis Vis 35 15 4 50 3A A 50 20 5 00 3Vis A 75 25 5 50 1 Vs 90 10 NOZZLE SPECIFICATIONS 45 S S HAGO Other makes of nozzles may or may not prove satisfactory Sufficient test data is not available to make other rec...

Page 8: ...urner and close the bleed valve LIGHT OFF AND ADJUSTMENT Before re starting the burner preset the air shutter and the retention ring position for the particular firing rate ac cording to Table 3 for 200CRD or Table 4 page 5 for 70ICRD If the fire is a little too rich open the air shutter or move the combustion head forward by increasing dimension A Fig 13 page 5 At the lower inputs a very slight c...

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