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DEHUMIDIFIER SERVICE INSTRUCTIONS
Removing the Desiccant Media: (Reference Figure B on page 17)
Desiccant media removal is accomplished as follows:
1.
Shut off all power.
2.
Remove unit access cover (drive side).
3.
Swing belt (chain) idler pulley away from media to allow slack in belt (chain).
4.
Remove belt (chain) from drive pulley (sprocket). Allow belt (chain) to hang from media.
5.
Remove the cap screws securing the shaft clamps on both sides of the desiccant media and remove
clamps.
6.
The following must be completed based on size of unit:
For the VFB-3 & VFB-18, the motor mount bracket and drive motor need removed, go to
step 6a.
For the VFB-6, 9,12,24,50,75,100,150,200 & 300 nothing needs done, go to step 7.
For the VFB-36 the tensioner assembly and drive motor needs removed, go to step 6c.
6a. The tensioner bracket and motor mount are the same part for the VFB-3, 6,9,12,18 & 24.
To remove the bracket and motor follow these steps.
1. Disconnect the wiring to the drive motor.
2. Remove the (4) fasteners at the bottom of the tensioner bracket and motor mount.
3. Remove the tensioner bracket and motor from the front of the unit.
6b. To remove the tensioner bracket for the VFB-36,50,75,150,200 & 300. Follow
these steps.
1. Remove the (4) fasteners that hold the bracket to the motor.
2. Remove the tensioner bracket from the front of the unit.
6c. To remove the motor for any VFB except the VFB-100, follow these steps.
1. Disconnect the wiring to the drive motor.
2. Remove the (4) fasteners at the bottom of the motor.
3. Remove the motor from the front of the unit.
6d. To remove the motor on a VFB –100, follow these steps.
1.
Disconnect the wiring to the drive motor.
2.
Remove the drive pulley & bushing.
3.
Remove the (4) fasteners that fasten the motor to the motor mount.
4.
Remove the motor from the front of the unit.
7.
Pull on drive belt (chain) to slide media straight toward access opening. Stop pulling when support
shaft reaches perimeter of media seal.
8.
Gently lift the bed enough to remove the support shaft from the media. (Some units may have ramps
internal to the unit to make removal of the support shaft easier) (On a VFB-300 attach external
ramps supplied with the unit to the internal ramps before removing bed).
9. Remove the desiccant media by pulling on the drive belt (chain on VFB-150, 200 & 300).
To re-install media, reverse the above procedure.
