Instructions / Assembly
®
System1738 Installation Methods26
6)
 Once fastened, the 
Access Panel and the Pipe 
Socket can be reinstalled 
using the screws on the 
opposite side (Figure 6).
7)
 The spacing between 
the appliance exhaust and 
air intake collars vary from 
appliance to appliance. 
Reference the appliance 
installation instructions 
to determine the center 
to center distance of the 
collars. If this information 
is not available, using a 
measuring tape measure 
from edge to edge to 
determine the collar 
vent spacing (D1) for the 
Universal Concentric Vent 
Kit (Figure 7).
Universal Concentric Vent Kit Configuration Guide
1)
 The Universal Concentric Vent Kit comes assembled 
in the box for a venting system with a left hand side 
configuration (Figure 1). If your system is set up as a left 
hand configuration skip to step 7.
2)
 If the venting system 
has a right hand side 
configuration start by 
removing the 2 screws on 
the Access Panel and the 
Pipe Socket (Figure 2) 
3)
 Next remove the 
remaining 5 front screws 
and separate both sides 
of the casing (Figure 3), 
providing access to the 
inside of the unit.
4)
 Once open, the locking 
tab on the 90D Reducer 
Elbow should disengage 
from the casing. Turn the  
elbow 180° on the 3" 
socket entrance (Figure 4) 
engaging the locking tab 
into the other side of the 
casing.
5)
 Once engaged, close the 
casing again making sure 
to align the adjustable air 
vent with the foam gasket 
to prevent damage. Inspect 
to make sure that the 
foam gasket remains intact 
(Figure 5) before re-installing 
the screws
Figure 2: Remove Pipe Socket & Access Panel
Figure 5: Gasket Inspection
Figure 6: Reverse the Access Panel and Pipe Socket
Figure 7: Vent Collar Spacing
Figure 8: Adjust the Air Vent
Figure 1: Determine Configuration
Exhaust
Air Intake Air Intake
water heater water heater
Left Hand Side Configuration Right Hand Side Configuration
Exhaust
8)
 Locate the adjustable 
air vent on the Universal 
Concentric Vent Kit socket 
which seals on the foam 
gasket. Holding the 
Universal Concentric Vent 
Kit unit securely, apply 
uniform force to the air vent 
down and away from the 
unit (Figure 8- 1 ) and shift it 
left or right (Figure 8- 2 ) until 
the spacing matches D1.
BEFORE
AFTER










