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User Manual
User Manual
Marey Electric Tankless Water Heater by Wahlbach
Marey Electric Tankless Water Heater by Wahlbach
How to use (POWER PAK Series)
Simply connect the power supply and inlet/outlet, open the tap for about 15 secs
before switching on power supply, then switching on power supply, the water
heater will start working.
How to adjust the maximum water flow rate
May only be carried out by a specialist.
1
2
3
4
Direction
Flow
Step 1
Push the cover at the corrugation towards the wall bracket.
Step 2
Press the cover down at the rear corners until the front edge lifts.
Step 3
Remove the cover by pulling forward.
Step 4
Turn the adjusting screw clockwise to decrease the maximum flow
rate, turn the adjusting screw counter-clockwise to increase the
maximum flow rate.
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 (109°F).
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,
hose and piping should all be considered when installing the device.
The appliance should be disconnected from the electrical mains supply when
working on the water supply. After service work is complete, proceed as during
the first-time appliance start-up.
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 de-
vice 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 rPOWER PAKnnect the supply.