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5. Low/High Cell temperature
The operating temperature range for the cell is 50
o
F to 140
o
F.
Verify actual water temperature
LCD display will read “COLD” when the water temperature is below 50
o
F
LCD display will read “HOT” when the water temperature is above 140
o
F
If the water temperature reads an erroneously high number, the cell temperature sensor is shorted
and the cell needs to be replaced.
Cell Temperature
Sensor
Output is scaled back to 20% at 60
°
F and output stops at 50
°
F