Munters R Series, Руководство по эксплуатации и техническому обслуживанию

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Manual# I27028 6-10 Rev. 2 – 11/22/2017
DuPont Teflon® Mutli-Use Lubricant. Follow “Directions for Use” on the lubricant.
4. Check for alignment and centering of the chain relative to the ring sprocket on the
perimeter of the desiccant wheel. Inspection should be performed on the return
from the drive motor sprocket to the return of the ring sprocket.
5. Check that all hardware and set screws are tight before returning equipment to
service.
6.15 INSPECTING THE WHEEL DRIVE MOTOR AND BELT (BELT DRIVE SYSTEMS)
1. The drive motor is located behind the front access panel.
2. Check the belt for signs of stiffness or cracking. Replace it if necessary. In order to
do this, you must remove the wheel.
3. Disconnect the belt from the drive pulley. On the R05, lift the pivot assembly and
remove the belt from the drive pulley. On the R10 and R15, press down on the idler
to loosen the belt and remove the belt from the pulley. When the belt is
disconnected, try to turn the drive pulley by hand. You should not be able to move
the motor shaft side-to-side. There should not be any significant backlash between
the drive gears. If you notice either condition, replace the motor.
4. If you replace the drive pulley, mount the pulley as close as possible to the body of
the motor. This will reduce the side load on the shaft and bearings.
5. When replacing the drive belt, be sure the belt is centered on the drive pulley. If the
belt is off-center, the pulley may not be able to provide enough drive to turn the
wheel. This can cause the wheel to turn more slowly than it should.
6.16 CHECKING THE HUMIDISTAT (OPTIONAL)
1. Start by adjusting the humidistat to the high end of the scale (close to 100% relative
humidity). At this point, the humidistat should not be calling for drying. The
contacts inside the humidistat should be closed, and 0VDC should be present
across the contacts.
The contacts inside the humidistat carry 24VDC. Shorting of the
leads could result in failure of fuses within the electrical
enclosure.
2. Next, adjust the humidistat to the low end of the scale (close to 10% or 20% relative
humidity). Now the humidistat should be calling for drying, and the contacts inside
the humidistat should be opened. 24VDC should present across the contacts.
3. The wiring between the humidistat and the unit can also be checked. See the wiring
diagram included in this manual. When the humidistat is not calling for
dehumidification, 0 VDC should be present across the contacts. When the
humidistat does call for dehumidification, the voltage across the terminals should be
24VDC.