23
To open the control panel, proceed as follows:
1. Remove the rotary
knob
2. Fully unscrew and
remove the fixing screw
3. Remove top section of
the control panel
4. Access the control
panel connecting
terminal
Control panel connecting
terminal
Flat connector
wire
Signal
X.01
1
+12 V
X.02
2
U
s
(supply fan control voltage)
X.03
3
U
s
(extract air fan control voltage)
X.04
4
GND
X.05
./.
Analogue input 0–10 V
X.06
./.
Analogue input GND
X.07
./.
Input for external boost ventilation key
X.08
./.
GND input for external boost ventilation key
Table 6: Control panel connecting terminal assignment
Connecting external boost ventilation keys
Boost ventilation mode can be activated by operating one or more boost ventilation keys (connected in parallel). The
keys that are usually installed as part of the switch range design are triggered when the boost ventilation mode is
selected. To establish the potential-free connection between the key and control panel connecting terminal, use a 2-
core cable as a minimum (recommended cable type: J-Y(ST)Y 2x2x0,6).
Control panel connecting terminal
Wire of boost ventilation key cable
X.07
Wire 1
X.08
Wire 2 (GND)
Table 7: Terminal assignment of boost ventilation key connection
Connecting external sensors
A sensor-controlled automatic mode is supported. This is controlled by an analogue 0–10 V sensor signal generated
by one or more sensors. To establish the connection between the sensor module and control panel connecting
terminal, use the type of cable stipulated for transmitting the sensor signal.
Control panel connecting terminal
Sensor module cable wire
X.05
Wire 1 (0–10 V sensor signal)
X.06
Wire 2 (GND)
Table 8: Terminal assignment of analogue sensor signal connection
Connecting an external pre-heater
If there is an optional electric pre-heater, this must be connected to terminals X2/X4b of the control board. Feed the
pre-heater power cable through a cable guide and fix it in place using a cable gland for strain relief.
The optional electric pre-heater must take the form of the Iso defroster heater DN 125 (Zehnder art. no.
527003450) with a thermal output of 700 W!
X2 / X4b terminal on control board
Wire of pre-heater cable
X2.33– PE
PE
X4b.44 – N
N
X4b.45 – Lvo
L
Table 9: Terminal assignment control board for connecting a pre-heating register
1
2
3r
4t
Summary of Contents for FOCUS 200 Base
Page 1: ...Translation of the original instruction manual Heat Recovery Unit FOCUS 200 Base...
Page 30: ...30 Dimensions Fig 33 Dimensional drawing...
Page 31: ...31 FOCUS 200 Base terminal scheme Fig 34 Terminal assignment terminal plan...
Page 36: ...36 PDE Manual_Focus 200 Base_V1 1 V1122 DE Subject to change...
