56
AGUADENS
COSMOGAS
Figure 8.8 - Removing the flow meter
A
B
020003.01.036
8.8 - Domestic water flow meter
replacement procedure
Proceed as follows, making reference to figure 8.8:
1.- empty the domestic hot water circuit, following the
procedure in paragraph 8.10;
2.- disconnect the electric power supply upstream from the
appliance;
3.- access the components inside the appliance, following
paragraph 8.2;
4.- disconnect the cables from the flow meter (detail “B” in
figure 8.8);
5.- unscrew the small disks “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 8.9 - Removing the safety valve
A
020003.01.034
8 - MAINTENANCE
8.9 - Safety valve
replacement procedure
The safety valve (detail “A” in figure 8.9) protects the
appliance from over pressures. If it has to be replaced,
proceed as follows (refer to figure 8.9):
1.- empty the domestic hot water circuit, following the
procedure in paragraph 8.10;
2.- access the components inside the appliance, following
paragraph 8.2;
3.- disconnect the drain pipe from the valve to be replaced
“A”;
4.- unscrew the lower fixing disk of valve “A”;
5.- extract the safety valve “A” upwards;
