Xylem McDonnell & Miller 150S Series Instruction Manual Download Page 1 | Manualshive

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Summary of Contents for McDonnell & Miller 150S Series

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Page 2: ...FFERENTIAL 19mm PUMP OFF PUMP ON 3 4 DIFFERENTIAL 19mm PUMP OFF BURNER OFF NORMAL BOILER WATER LINE 113 16 DIFFERENTIAL 46mm OPERATION Maximum Pressure 150 psi 10 5 kg cm2 Electrical Ratings Settings...

Page 3: ...ening or closing will occur at slightly different levels than indicated above Model 158S 150 psi 10 5 kg cm2 Levels 0 psi 0 kg cm2 150 psi 10 5 kg cm2 Pressure Settings and Differential Pressures cont...

Page 4: ...8 DIFFERENTIAL 35mm Values are 8 3 2mm 150 psi 10 5 kg cm2 Levels Approximate Distance Above Cast Line Differential Setting In mm In mm Pump 1 Off 15 16 24 5 16 8 Pump 1 On 5 8 16 Pump 2 Off 5 8 16 3...

Page 5: ...boiler to a level which is below the float chamber A Allow the boiler to cool to 80 F 27 C and release the boiler pressure to 0 psi 0 bar b Using a flathead screwdriver remove the junction box cover B...

Page 6: ...ew head gasket J on the sealing surface of the control body a Carefully remove the new replacement head mechanism from the carton Handle it carefully to prevent damage to the float rod G K D c Install...

Page 7: ...lay is used in conjunction with it To prevent electrical shock turn off the electrical power before making electrical connections This low water cut off must be installed in series with all other limi...

Page 8: ...larm off Boiler feed pump on burner off alarm on 1 2 4 5 6 1 2 4 5 6 1 2 4 5 6 Motorized valve closed burner on alarm off Motorized valve open burner on alarm off Motorized valve open burner off alarm...

Page 9: ...al rating 1 2 4 5 6 ALARM NEUTRAL HOT ALARM NEUTRAL HOT 1 2 4 5 6 1 2 4 5 6 SEE PUMP CONTROL CIRCUIT TO NEUTRAL TO BURNER CONTROL CIRCUIT HOT ALARM 1 2 4 5 6 LOAD LINE 3 PHASE SEE PUMP CONTROL CIRCUIT...

Page 10: ...erification of proper operating sequence If the burner comes on immediately turn the boiler off and make the necessary corrections Failure to follow this warning could cause an explosion or fire and r...

Page 11: ...on NOTE Refer to page 2 for switch operating points Open upper valve 1 Slowly open the lower valve 2 Water in the sight glass should lower As the water in the sight glass lowers the pump should turn o...

Page 12: ...oses Seller warrants the goods purchased hereunder with the exception of membranes seals gaskets elastomer materials coatings and other wear parts or consumables all of which are not warranted except...

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