4. Install mounting bracket in orientation used to determine exit point centerline leaving at least 1 foot from bracket to the
foundation wall or other vertical obstruction. This will allow room in the future to service the fan without detaching it from
the PVC piping, (See Diagram G).
5. Line up vibration isolation studs on back of fan housing to holes in bracket and secure with provided ¼" nuts,
(See Diagram H).
6. Cut a piece of 3" Schedule 40 PVC long enough to connect to the fan discharge and extend about 1 foot beyond the
home’s exterior. Push PVC pipe through hole to outside and insert it firmly in fan discharge -
IMPORTANT:
Do not glue to
fan at this time. This section of PVC will be cut to the finished length in Step 13 after performing the inflation test required
for adjustment of the VAC termination hood.
7. Connect PVC from the slab or sump pit to the inlet of the fan. Glue each section with adhesive approved for your type of
PVC, (See Diagram I). Schedule 40 PVC is most commonly used for radon exhaust. The inlet and outlet on the RMS160
fan is Schedule 40 PVC. Make sure that connection through slab or sump pit is completely sealed.
8. Sub-slab mitigation professionals would generally drill sample holes
in the corners of the slab to validate with the fan operating that the
system can create a suction throughout the entire sub-slab area. For
those points that a suction cannot be established additional PVC suc-
tion points should be installed and PVC piped to the existing Radon
VAC fan or exhausted separately with another fan.
5
Diagram I
Diagram H
Diagram G
Diagram D
Diagram E
Diagram F
ALLOW 12” BETWEEN
BRACKET AND WALL
FOR SERVICE
