Access panel description and location, Rail mounting / layout – Greenheck Fan PVE-35 User Manual
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7
Model PVe Heat Recovery Unit
Isometric view of
PVe on rails
Side view of
PVe on rails
Unit Size
A
B*
C*
D
PVe-20
5
14
13.25
7.75
PVe-35
5
14
12.00
6.50
PVe-45
5
14
15.50
10.5
PVe-55
5
14
18.75
13.25
All dimensions are shown in inches.
*Zones B and C identify regions/zones where rails may 
not be place due to ductwork.
Rail Mounting / Layout
An alternative method of unit installation is to mount 
the unit on rails supplied by others. The purpose of 
mounting the unit on either rails or the GKD curb is to 
elevate the unit away from moisture conditions and 
to provide proper clearance for installation of water 
drain traps.
 • Rails should be designed to handle the weight of 
the PVe unit, taking into consideration weight per 
square inch on bearing surfaces. Rails should be 
positioned as shown in the drawing below, taking 
into consideration proper load distribution and 
support by roof support elements.
• Make sure that rail positioning does not interfere
with either the RA Intake duct or the optional 
straight down SA Discharge duct.
• Rails should extend beyond the unit a minimum
of 12 inches.
• Set unit on rails.
Access Panel Description and
Location
1
Filters 
Optional OA Damper 
Optional RA Damper
2
Optional Face and Bypass Dampers 
Plate Heat Exchanger 
Optional Preheater
3
Plate Heat Exchanger
4
Control Center
5
Blowers
1
2
3
4
5
D
C
A
B
D
C
A
B