Maxol SUPACOMBI HE28, Инструкция по установке и обслуживанию

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Refer to Figur e 39
a) Ensur e supply voltage is isolated.
b) Remove the casing fr ont panel and lower the controls fascia panel.
c) Empty the DHW cir cuit.
d) Remove the DHW flow sensor (see section 9.11).
e) Unscr ew the body 2 and extract the flow switch group.
f) T o remove the filter from the flow switch group separate the filter 9
from the threaded ring by gently levering it apart.
g) Unscr ew the flow regulator 8 and threaded ring 7 and remove it
from the body 2.
h) Reassemble the par ts following the removing sequence in reverse
order.
Par ts of DHW flow switch group (Fig. 39)
b) Drain both the boiler and DHW cir cuits, refer to section 9.9.
c) Remove the two spring clips securing the bypass pipe and pull
out the pipe.
d) Remove the two socket scr ews l securing the heat exchanger to
the water manifolds and push the heat exchanger m backwards to
release it.
e) Fit the new heat exchanger and r e-assemble in reverse order.
f) Re-commission the heating and hot water systems. Refer to
section 5.
Refer to Figur e 38
a) Ensur e supply voltage is isolated.
b) Remove the casing fr ont panel and lower the controls fascia
panel.
c) Isolate the boiler fr om the system. Refer to section 5.
d) DHW ther mistor: Close the cold water inlet valve and open all
DHW taps to empty the DHW circuit.
e) CH ther mistor: Close the boiler flow and return isolating valves
and drain the boiler’s CH circuit, refer to section 9.9.
f) Disconnect the electrical lead fr om the thermistor.
g) Unscr ew the thermistor from the manifold.
h) Fit the new ther mistor and re-assemble in reverse order.
i) Ensur e that the copper washers are correctly fitted to provide a
sealed joint.
j) Re-commission the system. Refer to section 5.
9.12 DHW FLOW REGULATOR
9.13 DHW PLATE HEAT EXCHANGER
1 Flow switch sensor
2 Body
3 O-ring
4 Spring
5 Magnetic ring
6 Float
7 Threaded ring
8 Flow regulator
9 Filter
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Please note, in hard water areas, an increased
temperature display on the digital display may mean
that the DHW plate heat exchanger requires cleaning.
Refer to Figur e 38 and 40
a) Remove the casing fr ont panel (see section 6.2) and lower the
controls fascia panel.
9.14
CH/DHW THERMISTORS
9.15 PUMP
Refer to Figur es 41 and 42
a) Ensur e supply voltage is isolated.
b) Remove the casing fr ont panel and lower the controls fascia
panel.
c) Empty the primar y circuit of the boiler.
d) Disconnect the connector n.
e) Loosen the connection o, r emove the fork p and the pipe q.
5
6
4
9
2
8
7
3
1
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