SAVE VTR 300B SERVICE AND ACCESSORIES INSTALLATIONV1 20210616 121938589

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Service
4.3.1.9 Overheat protection reset button
Fig. 6 Overheat protection reset button
If the supply air temperature is low, it can indicate that the over heat protec-
tion is triggered. The overheat protection can be reset by pressing the reset
button (1).
4.4 Electrical connections
4.4.1 Main circuit board layout
The SAVE VTR 300/B is equipped with built-in regulation and internal wiring.
Fig. 7 Main circuit board connections
Position Description
CB
Connection to the external connection box
1
Terminals for a heater
2
Terminals for a TRIAC
3
Terminals for the mains power supply
4
Terminals for power supply of extract air fan
5
Terminals for power supply of supply air fan
6
Terminals for internal relative humidity/temperature sensor
7
Analog input 1 Outdoor air sensor
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