27
s
Never replace the pressure limiter when using a thermostatic valve.
s
Never use the shut-off valve in the cold water supply (23) to reduce the fl ow rate.
3.7 Power
supply
s #ONNECTTHEPOWERCABLETOTHETERMINALSTRIPSEEWIRINGDIAGRAM
I
).
1 heating system
2 High limit safety cut-out
3 Safety pressure limiter
Important information
:
s
The protection level IP 25 (hoseproof) is only assured if the cable grommet is fi tted correctly (
G
or
K
)
and if the cable sheath is sealed correctly.
s
Connect the equipment to earth.
s
For supply cables > 6 mm², increase the hole in the cable grommet.
3.8
Completing the installation
Click the lower part of the back panel (
E
3) into place.
3.9 Commissioning
(only by a qualifi ed contractor)
1
&ILLANDVENTTHEDEVICE0LEASENOTE"OILDRYRISK
Open and close all connected taps several times, until all air
has been vented from the pipework and the equipment.
Air - see "2.3 Important information".
2
!CTIVATETHESAFETYPRESSURELIMITER!0
The instantaneous water heater is delivered with the safety
pressure limiter triggered (press the reset button).
3
0USHTHETEMPERATURESELECTORCABLEPLUGONTOTHE
ELECTRONIC0#"
4
&ITANDAUDIBLYLETTHEDEVICECAPCLICKINTOPLACE
Check the fi rm seat of the device cap on the back panel.
5
3WITCHONTHEMAINSPOWER
6
4URNTHETEMPERATURESELECTORASFARASPOSSIBLECLOCKWISE
ANDANTICLOCKWISEWHICHCALIBRATESTHETEMPERATURE
7
#HECKTHEINSTANTANEOUSWATERHEATERFUNCTION
Optional displays of the “traffi c light” indicators (
A
9), see also
“7. Troubleshooting”):
red
illuminates in case of faults
yellow illuminates when the equipment is heating water
green fl ashing - equipment is supplied with mains power
%QUIPMENTHANDOVER
Explain the equipment function to the user and familiarise the user
with its operation.
)MPORTANTINFORMATION
s )NFORMTHEUSEROFPOTENTIALHAZARDSSCALDING
s (ANDOVERTHESEINSTRUCTIONSTOTHEUSERFORSAFEKEEPING
1
4
5
2.
1.
L
L
3
L3’
4
L2’
1
L1’
2
MV
NT
C
T-
soll
X1
1
1 8
2 1
2 4
k W
6
C26_0
2_0
2_0
769
3
2
For contractors
