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| Pneumatic thermostat |
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| Tools needed: thermometer, Allen wrench tool, and needle pressure |
gauge
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| Use the Allen wrench tool to remove the cover. Turn clockwise to turn the screw into the base allowing the cover to slip over the head of the screw. |
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| Adjust the temperature so that the edge of the black dial is lined up with the measured temperature. This one is set just below 76 degrees. |
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| Push pressure gauge into the hole as shown. Insert Allen tool into adjustment screw. Adjust until the gauge reads 9 psi. Be careful, adjust slowly, it is also sensitive to the heat from your hand. |
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| You can also adjust the temperature reading on the front display, so that it will better reflect the actual temperature of the room. |
Good article, very clearly described with the pictures. When I buy my pneumatic controls they usually come calibrated so I will give this a shot
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