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Replacement of the thermostats or the thermometer requires removal of the bulb from its location and the control from the control box.
•The bulb for the Boiler Temperature Thermo- meter is located on the first circuit heating out- put tube. Remove the bulb from the tube, remove the thermometer mounting screws in the control box and remove the thermometer. Replace the thermometer with another, routing the bulb capillary the same way as the original, replacing the bulb on the tube properly and as securely as possible.
•The bulbs for the Boiler Temperature Control Thermostat and the Water Overheating Safety Thermostat are both located in pockets on the side of the boiler shell. To change either, remo- ve the bulb from the pocket, remove the ther- mostat mounting screws in the control box and
remove the thermostat. Replace the thermos- tat with another, routing the bulb capillary the same way as the original, replacing the bulb properly into the pocket as far as possible.
•The bulb for the Combustion Product Overhea- ting Thermostat is located in a well provided in the condenser access plug/inspection port. Remove the combustion test point plug and washer from the inspection port to free the thermostat bulb, and remove the bulb from the well. Remove the thermostat mounting screws in the control box and remove the thermostat. Replace the thermostat with another, routing the bulb capillary the same way as the original and replacing the bulb properly into the well as far as possible. Replace the combustion test point plug and washer in the inspection port, securing the bulb in place.
23 | 7 |
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7 | M |
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