Connecting The Cooling Tube To The Flame Inspection Window; Assembling The Panels, Mod. Prextherm Rsw 1250N÷1890N - Ferroli PREXTHERM RSW Series Instruction For Use, Installation And Assembly

PREXTHERM RSW N
The fuel connections to the burner must be placed so that the boiler door can open
completely with the burner installed. It is advisable to place a rigid supporting base
under the burner to prevent its full weight from negatively affecting the door.
Models L min. (mm)
1250N 320
1480N-1830N 350
2360N 350
3000N-3600N 370
4000N-4500N 450
5000N-6000N 500

5.8 Connecting the cooling tube to the flame inspection window

The flame inspection window is equipped with a pressure fitting (1).
Once the interior screw is loosened, it must be connected to outlet 2 on the
burner using a silicone hose or copper pipe. This allows the air blown back
by the fan to cool the glass on the window and prevent it from turning black.
Failure to connect the hose or pipe to the window can cause the glass to
break. When disassembling the window for cleaning, check the condition of
the seals, replacing them if necessary. After closing, verify tightness.
5.9 Assembling the panels, mod. PREXTHERM RSW 1250N÷1890N
a) Carefully position the side panels (pos. 1, 2 - 3 and 4), hooking them
onto the supports on the boiler.
b) Assemble the U (pos. 12).
c) Attach the control panel to the top front panel (pos. 5).
d) Rest the top panel (pos. 5), which includes the control panel, against the side
panel (pos. 1), which includes springs, closing pins and nuts (pos. 9-10-11).
e) Insert the instrument bulbs in the sheaths (pos. 13) and make the electri-
cal connection from the control panel to the mains, burner, any pumps, etc.
It is advisable to insert the probes fully into the sheaths to improve contact.
Then secure the capillary tubes with the springs. Close the cover on the electrical panel and pass the burner plug through the openings on the
previous plate (pos. 14).
f) Install the top panels (pos. 6-7-8), hooking them onto the side panels (pos. 2-3-4), which include springs, closing pins and nuts (pos. 9-10-11).
L max. (mm) S
390 248
420 262
420 262
450 272
500 270
550 290
7
4
3
cod. 3545453/0 - 06/2019
8
6
5
13
12
1
14
fig. 14
fig. 12
fig. 13
10
11
9
2
EN
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