Skuttle Indoor Air Quality Products SEH-7100-000 Temperature/Resistance Chart

Temperature/Resistance Chart

100°F	6,000 ohms	38°C
90°F	7,500 ohms	32°C
80°F	9,500 ohms	27°C
70°F	11,500 ohms	21°C
60°F	14,000 ohms	16°C
50°F	18,000 ohms	10°C
40°F	23,000 ohms	4°C
30°F	28,500 ohms	-1°C
20°F	37,000 ohms	-7°C
10°F	46,500 ohms	-12°C
0°F	61,500 ohms	-18°C
-10°F	78,500 ohms	-23°C
-20°F	105,500 ohms	-29°C
-30°F	135,000 ohms	-34°C

For automatic applications…

• Make sure the outdoor temperature sensor is mounted completely outside the house (i.e., not recessed into the hole) on the North, Northeast or North- west side, away from direct sunlight.

• Make sure the outdoor temperature sensor is mounted at least three feet away from all exhaust vents.

• If the outdoor temperature sensor is mounted in the fresh air intake duct,

		make sure the probe is no further than 30 inches from an outside wall.
	NOTES:
		In AUTOMATIC applications, if the outdoor temperature is greater than
		+50°F (+10ºC) or less than -32°F (-35.6ºC), the humidifier control will not
		operate (except in “Test” mode).
		In both AUTOMATIC and MANUAL applications, if the relative humidity
		in the home is higher than the knob setting, Compustat will not operate the
		humidifier. Similarly, Compustat will not operate if the indoor relative
		humidity exceeds 45 percent.
Humidifier operates constantly	•	Check the humidifier control setting. If the relative humidity in the home is
		less than the knob setting, the humidifier will operate until the humidity level
		is higher than the knob setting.

•

•

In the “Test” mode, verify that the humidifier will shut off after approxi- mately one minute.

Check the resistance of the sensor. (See previous section.)

For automatic applications…

•Make sure the outdoor temperature sensor is mounted completely outside the house (i.e., not recessed into the hole) on the North, Northeast or North- west side, away from direct sunlight.

•Turn the humidifier control knob counterclockwise (4) to the “Off” posi-

Humidifier or humidifier control

“chatters” or clicks on and off rapidly

•

•

tion and observe whether the humidifier turns off. If the humidifier continues to operate, perform the following:

—Check the wiring diagrams (Figures 5-8) for correct installation.

—Remove the wires from the humidifier control’s “Out” terminals. If the humidifier continues to operate, check the humidifier.

Use a voltmeter to check for a steady 22-to-30VAC.

For automatic applications, make sure the outdoor temperature sensor wiring does not run alongside wires carrying high voltage (120 VAC or higher).