DencoHappel MATRIX OP71 - Page 67

MATRIX Control Panel OP71 Operating MATRIX control panel OP71
PR-2009-0021-GB • Subject to modifications • R5-04/2016 67
The "MA damper" submenu allows you to enter the settings for the mixing-air damper.
In “manually operated” mode the mixing-air damper is controlled by a setpoint set in
the “mixing-air damper mode” menu.
In “air volume flow” mode the mixing-air damper is controlled by a setpoint set in the
“air volume flow” menu.
An energy and noise optimized operating mode is carried out in "Automatic" operation,
i.e., the control is carried out in the control sequence mixing-air damper, valves, fan
speed .
In "Autom.+fan" operation, an energy-optimized operating mode is carried out, i.e. the
control is carried out in the control sequence mixing-air damper, fan speed, valves.
8.6.16.7 Settings ➜ minimum outside air ratio
In “minimum outside air rate” menu item you can change the parameter for the
minimum fresh air rate for the selected cluster.
The minimum outside air rate can be set in percent to the maximum outside air volume
flow.
8.6.16.8 Settings ➜ minimum fan speed
In “minimum fan speed” submenu you can enable or disable the minimum fan speed.
This setting determines if the room temperature control completely switches the fan off
or keeps it running at speed stage 1 after the setpoint is reached.
disabled: the fan is switched off completely upon reaching the setpoint in room tem-
perature control.
enabled: the fan always runs at least in stage 1.
Mixing-air damper mode
Manual
Air volume flow
Automatic
Autom.+fan
Value
range:
Manual, air volume flow, automatic, autom.+fan
Factory setting: unit-dependent
NOTICE!
The setting for "mixing-air damper mode" applies to all controllers in the cluster.
Minimum outside air ratio
Value range: 0 to 100 % of maximum possible outside air volume flow of
units (with continuous dampers)
Possible intervals: 5 %
Factory setting: 20 %
NOTICE!
THE SETTING FOR MINIMUM OUTSIDE AIR RATIO APPLIES FOR ALL CONT-
ROLLERS IN THE CLUSTER.
HOWEVER THIS VALUE APPLIES TO OPERATION TO ONLY TEMPERATURE-
CONTROLLED MIXED-AIR DAMPERS.
Fan minimum speed
Active
Value range: Enabled, disabled
Factory setting: Enabled