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3.2.2. The temperature of hot water running out of the appliance is shown on the digital display 8 (see
scheme 1). Also on display, when pressing the buttons 9 or 10 the hot water temperature set by the
user is shown. Pressing the button 9 reduces the set temperature, pressing the button 10 increases it.
The hot water temperature can be set in the range from 35 °С to 70 °С: in the range from 35...50 °С
with a step of 1 °С, and in the range from 50...70 °С – with a step of 5 °С. In 2-3 seconds after you
stop pressing the control buttons the real temperature of hot water by the appliance's outlet is shown
on display.
When water flow through the appliance is changed (by the water tap or due to change of pressure in the
water supply pipeline) and when gas pressure in the network or inlet water temperature is changed, the
control system automatically changes gas consumption, keeping the water temperature set by the user.
Note.. The possibility of keeping the set hot water temperature is limited by the appliance's heating
effect (18 kW), i.e. in case of low inlet water temperature (in winter time), or in case of high set water
temperature and substantial increase of its consumption the hot water temperature by the appliance's outlet
can be reduced to a value lower than the set one (error code Н1). So in order to keep the set hot water
temperature more stably it is recommended to set water temperature not more than 45 ...50 °С and limit the
water flow through the appliance, turning the knob 15 (scheme.) clockwise up to the stop (into the leftmost
position).
After switching the appliance on, setting new temperature or changing the water flow through the
appliance, the set water temperature will not be reached immediately, but only in some time, necessary for
automatic adjustment of the main burner's power. At that, a short-term increase of water temperature by the
appliance's outlet higher than the set one is possible..
When water consumption is reduced to 2...2,5 l/min and less automatic switching off of the appliance
will occur. In case of water consumption not much higher than the switching off threshold the appliance's
operation may be unstable (error code L0).
The control system remembers the last set temperature value and at the appliance's next launching it
will heat water to this temperature. The appliance's memory is energy-dependent: when switching a new
appliance on or after the power elements replacement the system sets water heating temperature 45 °С by
default.
Note 1. Water overheating in the heat exchanger causes the appearance of noise during the appliance's
operation and causes fast scale deposit appearance in the heat exchanger's pipes and narrowing of their flow
sections, what in some time will lead to the appliance's operation efficiency reduction and weakening of hot
water jet. So in order to reduce the appliance's output water temperature it is not recommended to use a
mixing vessel, adding cold water but to use the above listed methods.
Note 2. It is not recommended to set high hot water temperature by the appliance's outlet if not
necessary, as water overheating in the heat exchanger causes the appearance of noise during the appliance's
operation and causes fast scale deposit appearance in the heat exchanger's pipes and narrowing of their flow
sections, what in some time will lead to the appliance's operation efficiency reduction and weakening of hot
water jet. So in order to reduce the appliance's output water temperature it is not recommended to use a
mixing vessel, adding cold water but to set the temperature needed in the water pumping point by means of
control buttons.
3.3. Switching the appliance off
3.3.1
In order to switch the appliance off it is enough to stop water flow through it, closing all hot water
taps. After closing all hot water taps it is necessary to make sure that the main burner's flame has
completely gone out.
ATTENTION! If after closing all hot water taps the main burner is still operating, it is necessary
to immediately block gas supply by means of the gas stop valve of the appliance's inlet, and call a
specialized service organization for the appliance's repair.
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