User`s manual

24
I
mpor
t
ant!
B
efore any component is removed, the water heater must be drained of all water.
7
.3.1 Drain down
7.3.2 Removing the heat exchanger
1. Carry out steps 7.1.1 & 7.3.1;
2. Free the air pressure switch wires
from the heat exchanger by
removing the clip (Fig.57);
3. Unscrew the nut on the
exchanger hot water outlet (Fig.
58);
4. Unscrew the nut on the
exchanger water inlet (Fig.59);
FIG.57 FIG.58 FIG.59
FIG.60
FIG.61 FIG.62
1. Carry out step 7.1.1;
2. Turn OFF the cold water inlet tap on the appliance;
3. Place a container under screw P (Fig. 55) to catch any water;
4
.
R
emove the screw
P o
n the water valve (Fig. 55 & 56);
5. Turn ON the hot water outlet tap.
FI
G
.
55
FIG.56
P
5. Remove the two clips between the heat exchanger and the top of the
combustion chamber (Fig. 60 & 61);
6. Pull the exchanger towards you
(Fig. 62);
7. Reassemble in reverse order.
7.3 Access to the Water Circuit