Commissioning
HyCassette-Geko
115
PR-2015-0159-GB • Subject to modifications • R1-11/2015
✓
After a short period, when the water is drained off, the pump must switch off
again.
7.13 Functional characteristics for the use of DencoHappel MATRIX
7.13.1 Fan
Fan control depends on the configured control type and selected operating mode
on the control panel. The following fan modes can be set:
–
Manual fan control
–
Automatic fan control
–
Automatic fan control in “mute” mode
Irrespective of the selected mode, the fan is deactivated if one of the following
errors has occurred:
–
Motor thermal monitoring triggered
–
Insufficient operating data due to sensor error
–
Defective hardware
–
Failure of condensate drain
Automatic
The fan is regulated depending on the difference from the setpoint (temperature).
In "mute" mode the highest fan speed is blocked for stage fans. If the unit is fitted
with EC fans, the speed - specified as "mute" value - is not exceeded.
The fan stages or speed are controlled on the basis of the difference between
actual and setpoint readings. Both size and duration of the current difference
influence the control performance. With stage fans the switch points are deter-
mined by differential gaps.
The number of available fan speeds or continuously variable fans depends on the
unit type.
Possible configurations:
–
Speed number: 0 ... 3 - speed-stage fan
–
continuously variable: minimum speed … 100% (only MATRIX 3500)
MATRIX
3500
✓
Switching difference
Off
Fan sp
eeds
EC motor