12
VUT mini
Fig. 7. Wiring diagram
L
N
1
2
X1
Q
RS-1-400
speed controller
PE
L
N
~230 V
50 Hz
UNIT CONTROL
Smooth speed control is performed with the RS-1-400 speed controller, hereinafter the speed controller, fig. 8.
The speed is controlled from minimum to maximum value by rotating the control dial.
Install the speed controller in an easy operated place. The speed controller is pre-wired to the terminal block located in the terminal
block on the unit side panel in compliance with fig. 8.
Fig. 8. RS-1-400 speed controller and wiring diagram
N M L
2
1
Speed controller
RS-1-400
Unit
VUT mini
Speed controller
RS-1-400
Speed controller
connection
The freeze protection thermostat is installed in the exhaust air duct downstream of the heat exchanger. In case of a freeze danger
the thermostat switches the supply fan off and the heat exchanger is warmed up with warm extract air flow, fig. 2. Rotate the thermostat
control dial to set the operation temperature of the thermostat sensor. The thermostat set point is selected individually depending on
the unit operating specifics.
The recommended thermostat operating temperature is +5 °C (factory setting).
mepokerkft.hu