Lochinvar Crest 1251 Supplemental Manual Download Page 14 | Manualshive

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Dual Fuel Supplemental Manual

Notes

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Summary of Contents for Crest 1251

Page 1: ...along with the Crest Installation and Operation Manual and the Crest Service Manual before installing Perform steps in the order given Failure to comply could result in severe personal injury death o...

Page 2: ...situation which if not avoided may result in minor or moderate injury CAUTION used without the safety alert symbol indicates a potentially hazardous situation which if not avoided may result in prope...

Page 3: ...ernal to the appliance Do not use this boiler if any part has been under water The possible damage to a flooded appliance can be extensive and present numerous safety hazards Any appliance that has be...

Page 4: ...o flow only if the gas valves are powered and combustion air is flowing 7 Small propane valve Valve 1 Propane The small propane gas valve senses the negative pressure created by the blowers allowing g...

Page 5: ...tes Department of Energy 2 Net AHRI ratings are based on net installed radiation of sufficient quantity for the requirements of the building and nothing need be added for normal piping and pickup Rati...

Page 6: ...to the appliance 13 Remove the manometer from the pressure tap on top of the gas valve Remove the 1 8 3 mm field supplied fitting and reinstall the pipe plug removed in Step 3 DO NOT adjust or attemp...

Page 7: ...e replacement The gas valve MUST NOT be replaced with a conventional gas valve under any circumstances As an additional safety feature the gas valves have flanged connections to the venturis and blowe...

Page 8: ...oming gas pressure less than 4 inches w c 99 kPa If none of the above corrects the problem refer to the Troubleshooting Section of the Crest Service Manual Check system and boiler Check water piping 1...

Page 9: ...inspect the appliance and to replace any part of the control system and any gas control which has been under water OPERATING INSTRUCTIONS 1 STOP Read the safety information above on this label 2 Set...

Page 10: ...6 Insert the probe from a combustion analyzer into the hole left by the removal of the fitting 7 Once the boiler has modulated up to rate measure the combustion The values should be in the range list...

Page 11: ...ot in use FIG 2 3 Figure 2 3 Shutoff Valves NATURAL SHUTOFF VALVE PROPANE SHUTOFF VALVE DIR 2000508189 4 Turn on the shutoff valve for the one in use 5 Turn the main power ON 6 Using the Touch Screen...

Page 12: ...2 INTEGRATED CONTROL CN3 4 X8 15 X7 7 X8 11 X8 6 X8 16 X8 7 X8 17 X8 1 X8 3 X8 8 X8 2 X8 4 X8 9 X7 1 X7 5 GROUND X11 LCD DISPLAY X4 X5 1 X5 7 X5 2 X5 8 X5 3 X5 9 X5 4 X5 10 X5 5 X5 41 X5 6 CN3 12 BAS...

Page 13: ...R BL X6 18 X6 8 X1 8 G X6 9 MAIN BLOWER BLOWER R BK GY W T BK X2 3 X1 7 X1 10 X1 5 TRANSITION FLAME SENSE LG CON BRD FLAME SENSE SPARK GENERATOR SPARK ROD X2 5 FLUE DAMPER TRANSFORMER X13 4 FLUE DAMPE...

Page 14: ...Dual Fuel Supplemental Manual Notes 14...

Page 15: ...15 Dual Fuel Supplemental Manual Notes...

Page 16: ...Revision Notes Revision A Change 500001029 initial release MM 100268179_DIR 2000509263 Rev A 10 15...

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