
36
If an air damper or a return flap has been installed, the running time of the
actuator can be adjusted at this point.
The output signal for the control of the damper drives can be inverted, if the
flaps are connected with inversion and no longer accessible.
The Program Routine controls the actuator as a spring return function so that
the control after restart of the supply voltage starts from a closed flap. The
fan starts with delay after the flap opening. The choice affects the opening of
the chosen external air damper or return air damper and the start of the fan.
In the main display the status „start-up controller „is shown in the status dis-
play.
To the installed filter the pressure loss can be chosen for monitoring and
displaying of the filter contamination. The effect of this entry is the changing
of the alarm limit value. Alarm display gets active when the limit value is
exceeded.
To the installed heat recovery the type can be chosen:
cross-flow heat
exchanger or rotary heat exchanger.
For the heat recovery there is the
possibility of a bypass control with an actuator.
The Program Routine has a specific sequence for the de-frosting and pre-
vention of freeze on the heat recovery. After alarm, if no measures were
effective, the SupraBox COMFORT will after the set time, restart and the
fans starts again automatically to the automatic mode. A disturbance will be
signed in the alarm history. The Program Routine acknowledged automati-
cally the pending alarm. The sequence for the de-frosting and prevention of
freeze will repeat.
For the standard equipment you can choose the following accessory:
Heating warm water pump (PWW) or constant electric heater EEH
Cooling cold water pump (PKW)
Single-stage electrical preheating EEVH
Direct evaporator, if no cooling cold water pump (PKW) is selected.
After choosing the standard equipment a recommendation for the Heating
warm water pump (PWW) will be displayed for the installation of an external
air damper or return air damper.
Summary of Contents for H42 Series
Page 2: ...2...