Chappee NXR3 Installation And Maintenance Manual page 17

4. I
nstalling the options
4 . 1 Adjustable legs
F
or levelling the assembled heating chamber, located in the boiler room.
Assembly of the 4 heating chamber legs:
- Screw the adjusting screws up to the maximum in the supports,
- Engage the support in the space provided on each heating chamber leg, as shown in figure 19. Fasten the supports on
the end of each assembly linkage (nut + washer),
- Slide the pads under the adjusting screws,
- Level using the screw with a 17 flat wrench (adjusting travel = 16 mm maximum).
Boiler leg
4 . 2 Heating system flow and return connection manifolds with drain valve and
sensor pocket for remote control
T
he manifolds move the main heating system
connection outside the casing. They are provided with threaded
orifices for fitting the following accessories:
- On Ø 1/2" start and return: pockets (17) for remote
control sensor,
- On Ø 3/4" flow: drain or safety accessories (not provided),
- On Ø 3/4" return: drain valve (16);
Mount the manifolds (see figure 20) on the boiler's flow and
return orifices, positioning the threaded orifice Ø 1/2" towards
the exchanger, placed on top for flow and on the side for return.
NOTE: For boilers fitted with a water distributor (14) on the
return, the distributor must penetrate as far as possible in the
exchanger return orifice.
Its fixation flange will be placed, between two joints (13),
between the return manifold and the rear section.
Heating system's connecting flanges (12) should be welded
to the water system's pipes before fitting on the boiler.
Support Support fixation
nut
Adjusting
screw
Pad
12 - Flange
13 - Gasket
14 - Distributor
17
Fig. 19
Wrench
Fig. 20
15 - Return manifold
16 - Drain valve
17 - Sensor pocket
Réf. : CI - 405 - A