PREXTHERM
15
2.03 Fitting the door
In all pressurized boilers the door may be set to open towards either sides.
Opening
To prepare the door to open to a chosen side, turn on the desired side of the door the lock nuts 3 towards
4 and the lock nuts 5 in the other direction. In order to move the lock nuts 3 and 5 and invert the sides of
opening, proceed as follows; keep three bolts 4 tightened, loosen the fourth, take out lock nuts 3 and 5 and
tighten the fourth bolt 4. Insert and tighten the lock nuts 3 and 5 on the opposite side and repeat the procedure
with lock nuts 6 and 7.
Sealing
Loosen the lock nuts 3 and 5; tighten bolt 4 as needed; then tighten lock nuts 3 and 5.
Positioning
After assembling the burner it might be necessary to adjust the door position. This may be done by loosening
the dowel 8 and turning bolt 9. This should be done to assure that the sealing layer is pressed evenly against
the rebate.
Fig. 10
1
2
5
6
3
4
1
2
5
6
3
4
PREXTHERM
100 - 470
PREXTHERM
550 - 1000
Fig. 9
