GREENHECK 486001 Centrifugal Upblast Exhaust

Operation and Maintenance Manual

Please read and save these instructions for future reference. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information. Failure to comply with these instructions will result in voiding of the product warranty and may result in personal injury and/or property damage.

Recommended tools for installation:

• 2 Phillips screw driver

• One 5/16 inch wrench or hex socket or driver bit
• One 7/16 inch wrench or hex socket or driver bit

Included Fasteners

Included Fasteners

Qty| Description| Part Number
4| Birdscreen clip| 641315
4| #12 x 1” self-drilling screw/clima seal| 415815
4| 1/4” – 20 flanged nut| 415575
Fan will use either #12 self-drilling screws or

1/4” – 20 flanged nuts but not both. Mount designs vary depending on production year. There may be extra self-drilling screws or flange nuts depending on the fan size and production year.

Installation sizes

Installation sizes 060-240

• * Disconnect the wiring conduit from any existing externally mounted switches connected to the motor if directed through the fan’s breather tube (See Figure 1, Component B).

  • NOTE: Ensure power is disconnected from the unit before this step is completed. If conduit through the fan’s breather tube is non-existent this step is not required.
  • Remove the motor hood cover (See Figure 1, Component A).
  • Remove the interior bird screen retaining clip from the breather tube by expanding the clip at the open end
  • Remove the breather tube from the fan housing assembly by firmly pushing the tube structure through both the outer wind band and inner hood band assembly in the exterior direction of the fan.
  • Place single-piece bird screen over fan outlet ensuring perpendicular screen supports do not overlap existing flange bolts or holes located on/in horizontal support structures.
  • Secure the bird screen with a bird screen clip and either a #12 x 1-inch self-drilling fastener or a 1/4-inch flanged nut at each horizontal support location. The clip should cover at least 2 radial wires within the bird screen provided.
  • Re-install the breather tube previously removed in steps 3-4 and reconnect any switches before re-connecting power to the unit.

Installation Sizes 300-480

• Place one of the bird screen pieces over the fan outlet at a time with the screen end over horizontal support
• Secure both bird screen pieces with a bird screen clip at each horizontal support location using a #12 x 1-inch self-drilling fastener 

NOTE: Birdscreen clip located at the bird screen ends needs to cover both bird screen ends with all other clips covering at least 2 radial wires within the bird screen provided (See Figure 4). Sizes 300 and above utilize 2 bird screen clips and fasteners at each horizontal support location.One of the 2 bird screen pieces provided will need to be oriented underneath the existing breather tube to rest against the existing horizontal support structures.

Our Commitment

As a result of our commitment to continuous improvement, we reserves the right to change specifications without notice.

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