10
Rev. 6
FAN 2 tests just as FAN 1. Pause for 3 seconds.
FAN 1 and 2 test simultaneously as above. Pause for 3 seconds.
ALARM relay activates for 3 seconds. Then system returns to normal operation.
Operation
The Ice Qube fan speed controller has two adjustable set points, one for the ambient fan and one for the
enclosure fan. The ambient fan (FAN 2) set point has a range of 70°F to 110°F. It is set at 90°F from the
factory. The enclosure fan (FAN 1) set point has a range of 50°F to 90°F. It is set at 70°F from the factory.
Each fan also has an adjustable top speed differential. The fan will begin to operate at approximately 10%
rated speed when the enclosure temperature is at its set point. The fan will ramp up to 100% when the
temperature is 5°, 10°, 15° or 20°F above the selected set point. This differential is selected using the four
dip switches located on the fan speed controller. Dip switches 1 and 2 control the enclosure fan (FAN 1),
and dip switches 3 and 4 control the ambient fan (FAN 2). The differential for both fans is set at 10°F from
the factory.
Differential
1
2
3
5
5°
Off Off Off Off
10°
Off
On
Off
On
15°
On
Off
On
Off
20°
On
On
On
On
Each fan has an LED that will indicate the status of the fans. Normally, with power supplied to the
controller and the fans not operating, the LED’s will blink at a rate of 1 pulse every 2 seconds. When the
fans begin to operate; the LED’s will blink 1 pulse per second. As the fan speed increases the LED blink
speed will increase.
Note: Single speed fans will start and immediately ramp to full speed. However, the LED will blink faster
as temperature increases. The rate of pulse increase is dependent on the dip switch settings.
Fan off temperature will be approximately 5°F (3°C) below fan on setting.
Fan Failure Alarm
A fan failure is displayed by a continuously lit LED. This alarm is not available for single speed fans and
will not activate the alarm relay.
Optional High Temperature Alarm:
An alarm relay can provide a high temperature signal through either normally open (NO) or normally
closed (NC) dry contacts. The high temperature alarm relay activation will be by default determined by:
Fan 2 Tempe Dip Switch S 10°F
The alarm will automatically reset when the temperature decreases 10°F.
Содержание IQ10000HE
Страница 8: ...8 Rev 6 Figure 3 Terminal Cover Figure 4 Terminal Block optional...
Страница 13: ...13 Schematic Wiring Diagram Figure 6...
Страница 14: ...14 Rev 6 Specification Drawings IQ700HE Figure 7...
Страница 15: ...15 Rev 6 IQ800HE Figure 8...
Страница 16: ...16 Rev 6 IQ900HE Figure 9...
Страница 17: ...17 Rev 6 IQ2200HE Figure 10...
Страница 18: ...18 Rev 6 IQ6100HE Figure 11...
Страница 19: ...19 Rev 6 IQ7400HE Figure 12...
Страница 20: ...20 Rev 6 IQ10000HE Figure 13...
Страница 22: ...22 Rev 6 IQ900HE Gasket and Cutout Figure 15...
Страница 23: ...23 Rev 6 IQ2200HE Gasket and Cutout Figure 16...
Страница 24: ...24 Rev 6 IQ6100HE Gasket and Cutout Figure 17...
Страница 25: ...25 Rev 6 IQ7400HE Gasket and Cutout Figure 18...
Страница 26: ...26 Rev 6 IQ10000HE Gasket and Cutout Figure 19...
Страница 29: ...29 Rev 6 Notes...
