NuTone VX550 Installation Guide Page 32

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TUBING CONNECTIONS AT
POWER UNIT
This section refers to Figures 53 and 54.
Your VX Series power units are capable of being connected
to the intake vacuum trunk line from either side. Select the
intake connection to be used. On some installations, you
may connect the vacuum air intake into both intakes.
1. Using provided coupling (part
no. V127), attach the utility valve
assembly with the vacuum trunk line
feeding into the power unit. The utility
valve can be installed on the left or
right hand side.
2. Cap off the unused intake tube with the green plastic cap
provided.
3. Attach exhaust tube to power unit using provided
coupling (part no. V127) (if vented to the outside).
4. Make sure all tubing connections are air tight.
5. The exhaust should NOT be vented into a wall, ceiling or
concealed space in the house. It is recommended to vent
the vacuum exhaust air to the outside of the house.
Exterior vented exhaust lines should be terminated using
Model 393 wall caps or CI330 wall caps.
DIMENSIONAL CHART
32
EXHAUST
B CENTER OF EXHAUST
TO MOUNTING
BRACKET HOLES
A
OVERALL
HEIGHT
C
INTAKE
AD0004A
MOUNTING
BRACKET HOLES
EXHAUST
B CENTER OF EXHAUST
TO MOUNTING
BRACKET HOLES
A
OVERALL
HEIGHT
C
INTAKE
AD0073
FIGURE 53
FIGURE 54
CYCLONIC
BAGGED
CAUTION
Models VX475, VX550 and VX1000 will attach to
the upper intake connections. See Figure 53.
Models VX475C, VX550C and VX1000C will attach
to the lower intake connections. See Figure 54.
DIMENSION CYCLONIC BAGGED CYCLONIC BAGGED
VX475C VX475 VX550C/1000C VX550/1000
A 36 9/16” 36 9/16” 39 9/16” 36 9/16”
B 11” 11” 11” 11”
C 10 7/8” 2 1/8” 10 7/8” 2 1/8”
V127
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