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Electric Tankless Instant Water Heater -
Installation Manual and User Guide
EN
User Manual
5. User Manual
Operation
The electronically regulated continuous-flow water heater with automatic temperature
adjustment keeps the outflow temperature constant�
The device has touch key to switch it on and off, and
/
keys to adjust the heating�
: Decrease the outlet setting temperature;
: Increase the outlet setting temperature�
Adjust the temperature settings as desired.
If the selected outflow temperature is not reached when the tap is fully opened, then the
water flow through the device exceeds the capacity of the device� In this case, the flow
should be reduced with the hot water valve� There is a danger of scalding at outflow
temperatures exceeding 43°C�
This unit is intended for use with shower heads with a low pressure loss. Mixer
taps and thermostatic mixer taps should be of a design compatible with devices
with flow control.
Fittings for open-outlet water heaters should not be used!
Only fittings for close-outlet water heaters can be used!
Suggestion: To ensure that the minimum flow (switch-on flow) of a water-pressure
operated device is reached, the pressure loss (head loss) of the device, fittings, shower
head, shower hose and piping should all be considered when installing the device�
Typical pressure losses at a water flow of approx� 10L/min:
• Mixer tap: 0�04 - 0�08 MPa
• Thermostatic mixer tap: 0�03 - 0�05 MPa
• Shower head: 0�3 - 0�15 MPa
Without a temperature limiter, high temperatures may be reached at draw-off
points. Keep children away from the draw-off points.
Danger of scalding!
The device should be isolated from the electricity supply before any work is done
on live components.
Remove the fuses or isolate the device in another way.
The main water valve should be closed before any work is done on the water pipe.
If the water supply is interrupted, e.g. due to maintenance on the mains water
supply, then the following steps should be undertaken before returning the device
to operation:
1. Remove the fuses or isolate the device in another way.
2. Open a hot water valve connected to the device until the air is vented from both
the device and the cold-water supply pipe.
3. Replace the fuses or reconnect the supply.
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