PV 20a
Boiler firebox length L (Figure 5) should be at least 2,5 x the length of the burning chamber. For PV
20a, minimum of 420mm is acceptable (leaving L1 approx. 250mm). The height should be enough to
leave H1 below the burner about 100mm for ash.
Minimum dimensions L and H for PV 20a: L≥420mm; H≥350mm.
Figure 5 Boiler firebox requirements
Burners are mounted to door using supplied oil burner flange. Bolt hole circle diameter and bolt sizes
can be customized by using custom flanges. D1 and D2 given in Table 3 are only valid with supplied
flanges.
Table 3 Mounting holes for boiler door
Unit
⌀D hole for burning chamber neck mm 90
⌀D1 flange bolt ring diameter mm 130..150
⌀D2bolt holes mm 8..9
Figure 6 Mounting holes with supplied flanges for boiler door
9 www.pelltech.eu
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