Installation
Mounting
The water heater can be installed upright or suspended.
The connections must point upwards. When installing,
ensure that there is sufficient space in front of the water
heater for removing the immersion heater (approx. 200
mm).
When hanging on the wall, use both the "keyholes" on
the reverse.
70
35
395
278
200
390
395
170
55
305
200
X1
XL4
PF3
XL3
XL12
WN1
FL1
RM1
QQ3
QM30
"The Keyholes"
Pipe installation
Install safety valve (FL1), non-return valve (RM1) and
shut-off valve (QM30) in the cold water pipe in the order
shown on the previous page.
An overflow pipe must be routed from the safety valve
to a suitable drain. The dimension of the overflow pipe
must be the same as the safety valve's (Ø15 mm), the
pipe must be routed to prevent water pockets, and be
frost-proof and well supported.
When the water heater is installed without a mixer valve,
the thermostat setting must be such that the tap water
temperature does not exceed 65 °C. Should a higher
temperature be required, follow the relevant directions
for the application.
Ensure that incoming water is clean. When using a
private well, it may be necessary to supplement with an
extra water filter.
If uncertain, contact a plumber alternatively see applic-
able standards.
Filling
The water heater must be filled with water before the
mains supply is switched on. Filling takes place as follows:
■
Check that the cover for the drainage valve (XL12) is
in position.
■
Open the shut-off valve (QM30).
■
Bleed the water heater by opening a hot water tap in
the system. This can be closed when only water comes
out of the tap. The water heater is now filled and the
power can be switched on.
Electrical installation
NOTE
Electrical installation and service must be car-
ried out under the supervision of a qualified
electrician, and in accordance with applicable
electrical safety regulations.
If the power cable is damaged it must be re-
placed by the manufacturer, its authorised
service agent or another qualified person, in
order to prevent a hazard.
The water heater is supplied with a power cable with
earthed plug for 1 phase installation (1 kW). 1 phase in-
stallation provides the best service life for the immersion
heater.
The lowest point of the power cable should be below
the power socket when you connect the water heater
to the socket. This prevents any drops of water from
being led into the socket.
If 3 kW is required, the water heater must be connected
as a permanent installation (2x400V). For permanent
installation, the water heater is preceded by an isolator
(preferably with a signal lamp) with at least 3 mm
breaker gap. The existing power cable can be used if the
plug is cut off.
Electrical circuit diagram
3
13
10
11
14
5
12
2
1
A
B
13
10
5
12
2
1
A
B
10
14
400 V, 3 kW
230 V, 1 kW
X1
X1
SF1
FD1
EB1
Setting thermostat
For optimum operating conditions and to prevent bac-
terial growth, we recommend a setting of 60°C (max.
80°C).
HK 15 | GB
14
