Biddle CA Anleitung Seite 26

3 4 5
T F
ERMINAL UNCTION
O1-O1 An error has occurred. The error code is shown on the display of the control panel in the
module. See also chapter Faults of the unit's manual.
O2-O2 The set time of the filter fouling tracker has lapsed.
See also functions 2, 3 and 4 in section 3.2.3.
O3-O3 There is insufficient heating capacity available to achieve the required discharge tempera-
ture (heat demand). The central heating installation is not working or the heating capacity
of the boiler of the central heating installation must be increased (for water heating). The
source voltage of the unit must be checked (for electrical heating).
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4. The BMS module has three digital output ports 4, 11 dig-
ital input ports 5 and one NTC port 6. Connect the low-
voltage cables of the building management system to those
terminals in the BMS module which are essential for the
functionality of your installation. Use paragraphs 2.3.1,
2.3.2 and 2.3.3 in this guide for reference.
5. Tighten the cables using the strain reliefs of the BMS mod-
ule.
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6. Close the BMS module by returning cover
lock 1 one quarter.
2.3.1 Functions of digital output ports
c
Caution:
Output ports are potential-free contacts and may carry a
maximum safe voltage of 24 V (AC or DC).
The output ports show the operation of the unit without the
need for checking the display on the BMS module. The output
ports are of the normally closed type (NC): the function of an
output port is activated when the contact on the port is inter-
rupted. More than one port can be activated simultaneously.
n
Note:
If the unit that is connected to the BMS module is not sup-
plied with power, the contacts on the ports will always be
interrupted.
Table 2-1 Functions of the output ports
BMS M
ODULE
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and turning