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Fuel System Installation:
1.
Run two minimum of ¼ inch fuel lines from the fuel
tank/fuel pick-up to the Aqua-Hot.
Both fuel lines should be laid as flat as possible and any
extreme rises in height should be avoided in order to
eliminate any potential air-traps.
Run both fuel lines in areas where they cannot be
pinched, kinked, or damaged during normal operating
conditions.
2.. Be sure to secure all fuel lines where necessary and
apply protective shielding in areas where chafing may
occur.
Maximum
Allowable Suction
Height 7 feet
450 --- DE/DM
Figure 36
© 2008 Aqua-Hot
®
450-DE/DM Hydronic Heating System Installation Manual
Section 6: Fuel System
3.
Label both fuel lines indicating whether they are an
outgoing line or a incoming line.
4.
Connect the fuel lines to the fuel tank/fuel pick-up
pipe. Reference Figure 34.
5.
Install and tighten the appropriate fuel fittings onto the
Aqua-Hot's fuel ports, as well as the two ports of the
fuel filter. Reference Figures 37 and 38.
6.
Connect the inlet and outlet fuel lines to the Aqua-
Hot's fuel port connections. Reference Figure 38.
7.
Cut the fuel line at the fuel filter mounting location and
connect the fuel lines as illustrated in Figures 35 and 36.
50 ft. maximum distance
50 ft. maximum distance
— Page 25 —
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