Chaffoteaux & Maury MINIMA MX2 24 FF NG, Руководство по обслуживанию и ремонту

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F
G
11
H
15. Main heat exchanger
and insulation pads
Carry out steps 1 and 2 as above. Drain
the boiler (only heating circuit). Remove
the 2 front clips E securing the heat
exchanger. Remove the NTC clips and
overheat clip. Unscrew the nut F from the
pump. Remove the clip C from the left
side hydraulic bloc, pull the 2 pipes
downward.
Pull the heat exchanger toward you to
remove . Reassemble in reverse order,
do not forget to grease o rings before
reassembly.
To replace insulation pads, carry out the
above procedure.
To remove the pads bend down the
retaining clip and retract the pads .
Reassemble in reverse order.
16 Pump
Drain the boiler. Open the electrical box
cover (two T20 screws G). Remove the
pump plug from the control board and
earth plug from earth socket.
Unscrew the pump nut F of the flow pipe
from the volute. Remove the clip H on the
pump volute and pull the pump toward
you. Reassemble in reverse order.
17. Pressure relief valve
Drain the boiler first, remove the clip
securing the valve and pull it toward you .
Remove in reverse order take care to the
valve positionning.
18. NTC and Overheat thermostat
Remove the casing as step 1. Remove
the clips securing NTC and thermostat .
19. Safety thermostat
Remove the casing as step 1 unscrew
four self tapping screws securing the
sealed chamber front panel. Disconnect
the 2 cables, pull out the sensor with the
clip 11. Reassemble in reverse order.
20 Control board
Carry out step 1, Pivot the electrical box
downward. Unscrew the two T20 screws.
Replace the electrical box in the original
position. Unscrew the two T20 screws
and pull toward you.
Reassemble in reverse order.
21. Expansion vessel
Remove the boiler from the wall to
change it.
E
F
C