Contents 1 Warnings........................... 1 2 Left and Right models ........................ 1 3 Changing the bypass damper ..................... 2 4 Changing the bypass damper in the units produced before 10–08–2014 ........8 4.1 Disconnecting the transformer................... 9 4.2 Mounting the new bypass damper and connecting the adapter ..........13...
Note: This document describes installation of the bypass damper on the right (R) model. The inside of a left (L) model is mirrored. Replacement instructions SAVE VTC 700 Systemair AB 209246...
Disconnect the unit from the mains supply. Use a 8 mm Allen key to release the lock of a front hatch. Tilt back the hatch (pos 1) and then lift it off completely (pos 2). Replacement instructions SAVE VTC 700 Systemair AB 209246...
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Note: On the left (L) model the damper is located on the right side of the unit. Remove the lid (pos 2) of the bypass damper by loosening 4 screws (pos 1). Replacement instructions SAVE VTC 700 Systemair AB 209246...
Page 6
Disconnect all the cables: disconnect 4–pin connector (pos 1), 3–pin connector (pos 2) and ground GND connector (pos 3). Remove 2 screws with the black knobs (pos. 1) Replacement instructions SAVE VTC 700 Systemair AB 209246...
Page 7
Slightly lift up the bypass damper (pos 1) and then remove it by pulling it outside (pos 2). Mount the new bypass damper (pos 1), lock it into the position (pos 2). Replacement instructions SAVE VTC 700 Systemair AB 209246...
Page 8
Tighten the damper with locking screws with black knobs (pos 1). Connect all previously disconnected cables to the new bypass damper. Connect 4–pin connector (pos 1), 3–pin connector (pos 2) and ground GND connector. Replacement instructions SAVE VTC 700 Systemair AB 209246...
Page 9
Mount the lid (pos 1) of the bypass damper by tightening 4 screws (pos 2). Close the left door and tighten 4 screws. Mount the front hatch and lock it with the 8mm Allen key. Connect the unit to the mains supply. Replacement instructions SAVE VTC 700 Systemair AB 209246...
4 Changing the bypass damper in the units produced before 10–08–2014 If the SAVE VTC 700 unit was produced before the 10th of August 2014, a new released bypass damper cannot be changed directly anymore as shown in the installation section 3 Changing the bypass damper.
4.1 Disconnecting the transformer General changes that needs to be made on components in the connection box are shown in the illustrations bellow. Position Description Transformer Print card (PCU-EC) 5–pol socket Replacement instructions SAVE VTC 700 Systemair AB 209246...
Page 12
These wires are not needed anymore. Note: There is another set of brown and blue wires connected to 5–pol socket, DO NOT remove them. Remove only brown and blue wires that are connected to the transformer. Replacement instructions SAVE VTC 700 Systemair AB 209246...
Page 13
Disconnect red and black wires connected to the transformer (pos 1). Reconnect the red wire to the 5–pol socket terminal brown wire (pos 2) and the black wire to the 5–pol socket terminal blue wire (pos 3)). The transformer is now completely disconnected. Replacement instructions SAVE VTC 700 Systemair AB 209246...
Page 14
The grey GND wire is too short to be connected directly on the right side of the print card, cut and remove the protective black shrinking tubing from the cable (about 5–8 cm) before connecting the wire (pos 5). Replacement instructions SAVE VTC 700 Systemair AB 209246...
Remove the bypass damper (see: step 8, page 5 ). Mount the new bypass damper (see: step 9, page 5 ). Lock the bypass damper with two screws with knobs (see: step 10, page 6 ). Replacement instructions SAVE VTC 700 Systemair AB 209246...
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4, page 12 (pos 3 and 4)). Do not mix DI6 and Damper GND grey wires from the connection box while connecting them to the adapter or else bypass damper alarm will occur! Replacement instructions SAVE VTC 700 Systemair AB 209246...
Page 17
Mount the lid of the bypass damper by fastening four screws (see: step 12, page 7 ). Close the left door and tighten 4 screws. Mount the cover plate of the connection box (pos 1) then fasten two screws (pos 2). Replacement instructions SAVE VTC 700 Systemair AB 209246...
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Close the right door and tighten 4 screws. Mount the front hatch and lock it with the 8mm Allen key. Connect the unit to the mains supply.. Replacement instructions SAVE VTC 700 Systemair AB 209246...
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Replacement instructions SAVE VTC 700 Systemair AB 209246...
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Systemair AB reserves the right to make changes and improvements to the contents of this manual without prior notice. Systemair AB Industrivägen 3 SE-739 30 Skinnskatteberg, Sweden Phone +46 222 440 00 Fax +46 222 440 99 www.systemair.com 209246...
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