35
Installation instructions
Assembly sequence (Ref. fig. 36)
The
TRISTAR 3900 2S ÷ TRISTAR 6100 2S
boilers are supplied
with casing, for the mounting of the panel board, do the following:
A) Dismount the right upper walkways (pos. 1 and 2).
B) Fix the support box of the panel board to the bracket on the
right side of the boiler.
C) Remove the lower cover pos. 4 from the support box of the
panel board.
Fasten the panel board (pos. 5) to the support box pos. 3.
D) Rotate the cover of the panel board frontwards after having
removed the two screws on the side and insert the electric
inlet cables and the outlet probe capillaries through the slots
at the base.
fig. 36
TRISTAR 3900÷6100 2S
A
3
4
1
2
5
Insert the thermostat probe capillaries in the tube designed
for their passage, that is placed under the casing (see detail
“A”).
Pay special attention when unrolling the capillaries and insert
the bulbs in the two holders, inserting the contact springs and
blocking the capillaries with the fixing springs.
E) After having carried out the electric connections, close the
panel board and reposition the lower cover of the support box.
F) Remount the upper walkways.