SAVE VTR 100B SERVICE AND ACCESSORIES INSTALLATIONV1

Accessories
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TRIAC installation (left-hand orientation)
1 LEFT-HAND ORIENTATION (outdoor air connection is
situated on the left-hand side of the unit when
viewed from the front)
Remove a screw from the front panel (1).
Peel off label which covers holes for TRIAC screws.
Position TRIAC (2) over holes and use included screws
(3) to secure TRIAC in place.
Lift the main circuit board off the hooks (5) and care-
fully pull it out.
Connect wires to the main circuit board connector (4).
See wiring diagram for more information.
Insert back the main circuit board.
Tighten the panel with previously removed screw (1).
Put the cover back.
Note:
For more detailed information see a wiring diagram delivered with the unit.
Configuration
1. Go to Service menu
2. Enter password (default 1111)
3. Go to Components menu, select Heater menu and select type as Electrical. Do advanced settings if necessary.
4. Configure overheat protection sensor. Go back to Input menu. Select ANALOG tab. Select the analog input to which
the overheat protection sensor is connected. Example if it is connected to AI4 on the main circuit board, then select
ANALOG INPUT 4 and select Overheat Temperature Sensor (OHT) from the input type list.
5. Configure TRIAC. Go to Output menu. Select ANALOG tab then select TRIAC OUTPUT and set output type as Y1
Heating.
Note:
If the supply air temperature is low, it can indicate that the over heat protection is triggered. The overheat
protection can be reset by pressing the reset button.
5.3.2 Electric duct heater (control via relay)
The electric heater can be installed in outdoor or supply air ducts.
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