Installation - plenum and plug fans, Installation - housed plenum array, Unhoused wheels – Greenheck Housed Plenum Array , Plug and Plenum Fans (475405) User Manual
Page 5: Caution

5
Housed Plenum Array, Plug and Plenum
One-half
wheel
diameter
One-half
wheel
diameter
One-half
wheel
diameter
One
wheel
diameter
Installation - Plenum and Plug Fans
Unhoused Wheels
Adjacent Walls - The distance between the fan and
walls or ceilings will effect the performance of the fan.
The recommended distance between the fan wheel
and any wall is a minimum of one-half wheel diameter.
Multiple walls reduce the performance even more.
Side by Side - When two or more plenum fans are
in parallel, there should be at least one fan diameter
spacing between the wheels. Applications with less
spacing will experience performance losses.
CAUTION
When installing a fan, ensure the proper protective
devices are used to protect personnel from moving
parts and other hazards. A complete line of protective
accessories are available from Greenheck including
inlet guards, outlet guards, belt guards, shaft guards,
protective cages, and electrical disconnects.
Wheel
Size
Standard Housing
W
H
D^
Maximum
Stacked
Modules
Maximum
Motor
Frame
Weight*
(lbs.)
15
29.00 29.00 32.06
4
215T
215
16
31.50 31.50 37.00
256T
250
18
34.38 34.38 38.19
3
256T
290
20
37.25 37.25 39.56
256T
340
22
41.00 41.00 42.19
286T
380
24
44.75 44.75 43.75
286T
425
27
48.94 48.94 47.56
2
286T
680
30
53.81 53.81 48.94
326T
820
33
58.81 58.81 51.06
326T
960
36
64.56 64.56 51.06
326T
1100
Dimensions are in inches.
^Does not account for motors or accessories.
*Weight is less motor and drives.
Installation - Housed Plenum Array
3. Bolt the fan to the floor and
adjacent fans using the inlet
and outlet mounting flanges.
The first layer of fans should
be securely installed before
installing the second layer of
fans.
4. Thin gasket material or caulk between fans is
recommended to prevent unwanted noise of air.
5. Do not exceed the maximum number of stacked
modules (refer to table).
1. Carefully remove any crate
and packing materials.
2. Place the fan onto the
mounting structure using
the recommended lifting
points and hooking
method as shown. Lift
each fan individually into
it’s proper position.
H
W
D
Recommended
Lifting Points