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CHAPTER 17
TEMPERATURE GAUGE
Temperature Gauge
Principles
The temperature gauge displays the temperature of the water in the water jacket.
The temperature gauge body ts into a “well”. The “well” is completely watertight
and is threaded into the water jacket. This allows the temperature gauge to be
removed with no loss of water. The temperature gauge is for reference only, not
to be used for exact temperature readings. More accurate equipment is needed
to determine actual water temperature.
Maintenance
Keep the face of the dial clean by cleaning periodically with glass cleaner.
Removal and Replacement
1) To remove the temperature gauge from the “well,” pull straight out on the face of the dial. Do
not pull on the face of the dial in a twisting motion. A twisting motion may result in de-calibrating the
temperature gauge.
2) To install, push the temperature gauge straight into the well. (Ensure contact paste has been applied
to well.)
NOTE: Different makes and models of temperature gauges have different sized wells. Often they are not
interchangeable. Replace with the correct unit from your local dealer.
NOTE: The temperature reading on the temperature gauge may not coincide exactly with the temperature of
the water leaving the back of the HEATMOR™ or the temperature of the water arriving into the building being
heated. There may also be small variances between the temperature reading on the temperature gauge at the
front of the HEATMOR™ and the aquastats on the back of the HEATMOR™.
These variances result from:
1) The temperature gauge is reading the temperature of the water at the top of the water jacket, at the
front of the HEATMOR™. The hot supply water is taken from the bottom of the water jacket at the rear
of the HEATMOR™.
2) The same reason for the variance between the temperature gauge and the aquastats.
3) Until the water is thoroughly mixed, whether or not the unit is ring, there will be variances between
the different instruments.
IN A NORMAL OPERATING MODE, SMALL VARIANCES IN READINGS AND
CALIBRATIONS WILL NOT AFFECT THE END RESULTS OF THE TOTAL SYSTEM.
Temperature Gauge
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