13
Electric instant water heater
EN
1. Off position
2. On/Off and power control knob
3. Low power position
4. Medium power position
5. Full power position
Before first start or after a long idle period of the water heater, fill it with
water opening the cold water feed isolation valve and make sure that cold
water steadily flows from the water outlet at the consumption point. After
that, switch on the appliance and make sure that the power indicator on the
front panel lights up*.
* The service life of the power indicator is 3000 hours continuously. There-
fore, disconnect the appliance from the electrical mains after use to extend
the power indicator life.
To switch on heating, place the control knob to the ON position ( ). If
sufficient water flow and pressure at least 0.08 MPa are available, the water
heater will start heating water.
Incoming water is heated inside the heating flask, when it flows through
the heating element. Water temperature in the water supply network may
fluctuate throughout the year from +3°C to +20°C. Therefore, water flow in
winter shall be made lower than in summer to obtain the optimum water
temperature. Water flow is controlled by the valve at the water inlet of the
water heater. Never install an isolation valve or shut off water flow at the
water heater outlet. After activation of heating, wait for 10-20 sec until
temperature of heated water is stabilized.
For adjustment of hot water temperature, use the valve at the inlet
connection (cold water inlet). When you decrease inlet flow rate of water,
you increase outlet temperature of water and vice versa. For water heaters
of H-IWR1-5P and H-IWR1-6P series, you can also place the On/Off/power
control knob to the low power position ( ) or to the medium power position
( ) in order to adjust water temperature. To switch off the water heater,
place the On/Off/power control knob to the OFF position ( ), close the cold
water feed valve at the inlet, and de-energize the water heater.
OPERATION
OFF
ON
5
3
4
2
1
Summary of Contents for H-IWR1-3P-UI057/S
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