Schwank P40U Fenwal - Manual (Page 15)

15
P40U-F / P40U-IF I&O Manual
IM101220
RD: MAY 2014
RL: 5A
FIGURE 6 P40U MINIMUM CLEARANCES TO COMBUSTIBLES
It is the installer’s responsibility to ensure that building materials with a low heat toler-
ance which may degrade at lower temperatures are protected to prevent degradation.
Examples of low heat tolerance materials include vinyl siding, fabrics, some plastics, filmy ma-
terials, coatings, laminated surfaces, etc.
Turbulators:
The system is assembled at the factory with turbulators inside the tube. The turbulators serve
to increase system efficiency and lower the vent temperature. The turbulators must remain in
place inside the tube.
Burner side tube: 36” (914 mm) Turbulator (located at elbow, away from burner)
Vent side tube: 90” (2286 mm) Turbulator