Chappee NXR3 Installation And Maintenance Manual page 10

3 . 4 Operational assembly diagram
Operation
Open the "chamber accessories" parcel
Distributor (14 - 14a)
Installing the boiler
Sensor pocket (8)
Sludge flushing
Drain valve (16)
Welding- flange (12)
Filling and hydraulic test
Smoke box (19 - 19a)
Stack
Optimizing baffles (18 and 18a)
Door hinges (9)
Door guide (10)
Door hinge (9a)
Chamber (22) and
Cleaning door (30)
Burner plate (28)
Réf. : CI - 405 - A
• Assemble the 8 studs 12 x 65 around the rear section's start and return orifices.
• If necessary, insert the distributor (see figure 22) in the return orifice by interpolating the seal
(13).
• Place the boiler in its final position and level it, which would be made easier by the "Adjustable
legs" option (chapter 3 . 1)
• Screw the pocket and the reducer (7) in a leaktight manner in the front section's upper orifice.
• A threaded orifice Ø 2" is provided at the bottom of the front section, for mounting a valve
enabling rinsing and flushing of the installation's sludge (we recommend mounting coil, a 90°
bend and the valve). A pre-cut space allows for passing the tubing in the casing's lower
panel.
• Mount a drain valve tightly (not provided) on the installation or in the lower part of the rear
section using a reducer (not provided).
• A drain valve Ø 3/4" is delivered with the "Connection sleeves" option (see chapter4 . 2).
• Connect the flanges on the installation's tubing, than fasten them on the boiler, interpolating
the seal (13), with 4 HM 12 nuts and 4 washers for each.
• After having checked the connections, proceed slowly with filling the installation, ensuring all
the air is vented, then proceed to the hydraulic test ((1.3 x P. operation) to check all leaktight
areas.
• Screw the shortest threaded part of the 4 studs M 8 x 40 in the rear section in the upper part.
• Check that the leaktightness braid (21) is in place.
• Engage the smoke box on the studs and fasten it (4 HM nuts and 4 washers) by tightening
the nuts moderately and simultaneously.
• Connect the boiler to the stack in the most direct possible manner and without reduction of
the size of the smoke duct. Ensure that the latter is leaktight.
• Insert the assembled baffles (18) in the upper "flue-ways" and, if need be, the simple baffles
(18a) in the lower "flue-ways" (see chapter 4 . 3).
• Screw the small threaded part of the 8 studs M 8 x 40 in the front section following the
indications of figure 10.
• Define the opening side for the doors.
• Mount the hinges (1 screw HM 10 x 30 + 1 nut HM 10 + 2 washers L 10 for each guide). The
door guide is located opposite the hinges, in the upper part.
• Depending on the chosen opening side, secure the hinge (9a) on each door using 2 screws
HM 12 x 35 + 2 washers M 12.
Caution: For reasons of practicality, it is recommended to mount the firebox door first.
• Mount the doors on the hinges using the axes (11).
• Engage the doors on the studs and fasten them (4 nuts HM 10 and 4 washers L 10 for each
door), tightening the nuts lightly and simultaneously.
• Depending on the size of its fixation, the burner is mounted directly on the door, or via a
perforated plate (see figure 11). Mount the burner plate (4 screws HM 12 x 35 + 2 washers
M 12) on the chamber door, interpolating the leaktightness seal (29).
- A plain plate may be provided on request.
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Method