10
The SS1R vent system is shipped from the factory with the plug connected to the rear and the vent pipe inlet collar connected at
the bottom. If using the bottom inlet, see “Vent Pipe Clamp Assembly” at bottom of page. If the installation requires the use of the
rear inlet, see “Vent Pipe Inlet Collar Conversation” to move the vent pipe inlet collar from the bottom to the rear.
VENT PIPE INLET COLLAR CONVERSION
1. Remove the plug from rear inlet port
by unfastening the 6 nuts that secure it
to the Plenum. Keep the plug & nuts
for later use.
2. Remove the sensing tube from the
Fan Proving Switch by loosening the
plastic compression fitting.
3. Remove the vent pipe inlet collar from
the bottom port by unfastening the
6 nuts that secure it to the plenum.
Keep the nuts for later use.
4. Using a tube cutter, cut the sensing
tube 2" from the elbow directed at the
vent pipe inlet collar, (See Diagram L).
Discard the cut off section of metal tube.
5. Attach the vent pipe inlet collar to the rear inlet port making sure that the sensing tube is orientated as shown, (See Diagram M).
NOTE: Alignment marks on the inlet collar and plenum casing must match.
6. Attach 90
0
compression fitting to the short tube on the inlet collar.
7. Using the "soft" aluminum tubing, connect the Fan Proving Switch to the inlet collar. Take care not to crimp the tubing.
8. Install the plug removed in step 1 over the bottom inlet port, tightening securely.
VENT PIPE CLAMP ASSEMBLY
NOTE: The following diagrams show the use of the rear inlet. The same steps will apply if using the bottom inlet.
1. Attach the three vent pipe clamps to the inlet collar, (See Diagram N).
2. Bend each vent pipe clamp so it conforms to the outside diameter of the vent pipe being used, (See Diagram O)
3. Route the adjustable clamp through the openings at the opposite end of the legs.
4. Slide the vent pipe over the inlet collar of the SS1R.
5. Tighten the adjustable clamp around the vent pipe, (See Diagram O).
DIAGRAM K
IMPORTANT:
Oil installations
must have a barometric draft
control.
DIAGRAM N
DIAGRAM O
DIAGRAM M
DIAGRAM L
