Malfunction Alerts; Installation; Commissioning - Zehnder ComfoSwitch C-Serie Betriebsanleitung

8

Malfunction alerts

Menu item LED 1
HRU
initializing /
HRU service
mode
ERROR (all
LEDS are
blinking)
Initalisation /Service mode error: LED 1, LED 2
and LED 3 are blinking. Air flow cannot be set
and there is no ventilation. Check HRU display
and HRU manual to fix this error.
Error: Any other HRU or system malfunction,
all indicator LEDs on the device are blinking.
Check HRU display and HRU manual to fix
this error.
9

Installation

Disconnect the ventilation unit from the main
power before installing the device.
Always follow local safety regulations.
During assembly, ensure that ALL screws are
tight.
If ordered (fig 4.1 - 4.5):
1. Attach the wall-mounting casing I with
the plugs H and screws G to the wall.
2. Fasten the wall frame A with the screws
(F) on the wall, wall-mounting casing (I)
or mounting plate (E).
3. Put the communication cable through
the design frame X and resize window
(D).
4. Plug in the communication cable (fig
4.5), to connect the ventilation unit and
the device.
5. The cable requirements are:
■ 2x twisted pair, unshielded, (preferably
in compatible colours with the colour
coding of the connectors);
■ Stiff (solid) wires (not flexible type), for
push-in clamps;
■ Specification according to DIN VDE
0281: J-Y(St)Y 2 x 2 x 0,6.
6. Attach the device (B) (with the design
frame X and the resize window D) with
14 - EN
LED 2 LED 3
the screws E to the frame A.
To replace, use any of the following
screws:
■ Hardened and galvanized steel screw
2.2 x12 PT10;
■ M2.2x 12 cross recess plan plas-fix45°.
7. Push the cover C into its place.
10

Commissioning

Turn ON the main power of the ventilation unit.
When the device first starts, the LED 1, LED 2
and LED 3 are blinking.