Proheat X45–School Bus - Manual (Page 44)

SECTION 3. INSTALLATION
Figure 3-32 1 ⁄
4
" NPT Port
Locate an existing pipe thread port in the vehicle fuel tank and select the 1 ⁄
4
"
or 1 ⁄
2
" NPT portion of the fuel pick-up that fits into that port. Apply a pipe
sealant paste to the fuel pick-up pipe threads prior to installation.
Figure 3-33 1 ⁄
2
" NPT Port
FUEL PICK-UP
1/4" NPT
FUEL TANK
EXISTING PORT
IN FUEL TANK
FUEL PICK-UP
1/2" NPT
FUEL TANK
EXISTING PORT
IN FUEL TANK
CAUTION
Do not use teflon tape as this will
contaminate the heater and engine
fuel system.
3-23
OPTION A – 1/4" or 1/2" NPT Port 3.6.2