Primary Heat Exchanger; Function; Removal; Cleaning - QHT RIVA FP Service Instructions Manual

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Third Part
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Primary Heat Excanger

1) Function

2) Removal

3) Cleaning

1 Function
The primary heat exchanger A in Figure 1 has
the function of transferring heat produced from
combustion of the gas to the water circulating in
it.
The hydraulic circuit is composed of 8 elliptical
pipes connected in parallel (Figure 2).
RIVA FP SERVICE MANUAL – REV A
A
Figure 1
Figure 2
(edition-0106)
2 Removal
1) Remove the case panels.
2) Empty the primary circuit.
3) Remove the sealed chamber lid.
4) Remove the front panel B of the combustion
chamber by unscrewing the screws C (Figure
3).
5) Remove the screw D and the deflector E.
6) Remove the clips F (Figure 3).
C
B
7) Loosen the connection G, rotate to the left and
then move downwards the pipe H freeing it
from the connection of the primary heat
exchanger (Figure 4).

Primary Heat Exchanger

Figure 3
I
J
Figure 4
F
E
D
H
G
2-1