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4.3 INTERFACE OPERATION
The Ultra Smart™ control access is through four (4)
keys.
Key
provides access to the configuration
menu and is also used as an « ENTER key » to
confirm the selection. The two (2) rocking keys
allow items selection or value change.
The
key light-up the LCD back screen. The
screen will remain lighted until the
depressed again. Depressing any other keys will
light-up the LCD for a default value of 10 sec.
Depressing the
OFF.
4.4 COMBOMAX MODE OPERATION
The Ultra Smart™ control manages both the heating
element(s) and circulation pump. It tries to maintain
the boiler tank temperature around the target
temperature shown on the display. When the tank
temperature decrease under the target temperature,
the heating element(s) is turned ON and modulate
trying to maintain the target temperature. On units
equipped with more than one heating element, the
heating elements will be used in sequence in order
to insure equal aging.Heating stages are indicated
on the LCD by the darkening of the
icon.
On an heat demand, the control will turn the
circulating pump ON if the tank water temperature is
high enough to satisfy the domestic hot water
demands. The following symbol will appear on the
upper right of the display.
domestic hot water prioritisation). The controller will
stop the circulating pump once the space heat
demand is satisfied or if the boiler temperature drops
too much (see section 4.5)
4.5 DOMESTIC HOT WATER DEMAND
PRIORITISATION.
The Ultra Smart™ control can manage both heat
and domestic hot water demand. It's programmed to
prioritize domestic hot water production over building
heating in case of low tank water temperature. The
control accomplish this operation by turning the
heating circuit circulation pump OFF until the tank
water temperature return to normal.
COMBOMAX ULTRA Electric Boiler Installation, Use and Care Manual
key will turn the LCD lighting
(see section on
key is
The value of the tank temperature decrease under
the established target temperature shown on the
display is adjustable on the configuration menu of
the control.
This function has minimal impact on the building
temperature since typically domestic hot water
demands are of short enough duration that the
building temperature will not be affected.
4.6 CONTROL SET-UP
Since every application presents different heating
and domestic hot water needs, it is important to
properly set-up the COMBOMAX ULTRA for the
application in order to maximise its performance.
In order to set-up the COMBOMAX ULTRA control,
the installation technician has to access the Ultra
Smart™ control configuration menu in pressing on
the
displayed.
Selecting the function or the value to adjust is by
using the rocking keys
the next menu.
Table 4 below shows the menus that will appear. If
keys are not pressed for more than 15 sec. the
controller will save the last changes and return to
normal operation display. Scrolling to the end of the
menus will also return to normal operation display.
In case of power failure, function set-up are saved
and restored with when electrical power is returned.
Figure 10: UltraSmart Controller
for 2 sec. until the first menu is
key confirm your selection an brings you to
, Page
(Revision june 2016)
. Pressing the
17.
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