COSMOGAS AGUADENS Series, Installation, Operating And Maintenance Manual

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59
AGUADENS
COSMOGAS
Figure 8-9 - Removing the flow meter
8.8 - Domestic water flow meter
replacement procedure
Proceed as follows, making reference to figure 8-9:
1.- empty the domestic hot water circuit, following the
procedure in section 8.10;
2.- disconnect the electric power supply upstream from the
appliance;
3.- access the components inside the appliance, following
section 8.2;
4.- disconnect the cables from the flow meter (detail “B” in
figure 8-9);
5.- unscrew the tightening nuts “A”, paying attention that the
residual water from the pipes does not reach the control
board;
6.- slide the flow meter “B” upwards and replace it.
Figure 8-10 - Removing the safety valve
8 - MAINTENANCE
8.9 - Safety valve
replacement procedure
The safety valve (detail “A” in figure 8-10) protects the
appliance from over pressures. If it has to be replaced,
proceed as follows (refer to figure 8-10):
1.- empty the domestic hot water circuit, following the
procedure in section 8.10;
2.- access the components inside the appliance, following
section 8.2;
3.- disconnect the drain pipe from the valve to be replaced
“A”;
4.- unscrew the lower fixing disk “B” of valve “A”;
5.- extract the safety valve “A” upwards and replace it.
A
B
A
B
020003.01.050
B
A
C
D
B
A
C
D
020003.01.049