Operating And Fault Indications; Operating And Fault Indications Via The Heating Appliance Displays; Fault Message Via The Remote Fault Indication; Operating And Fault Indications Via Led - Buderus MCM10 Notice D'installation

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Operating and fault indications

5 Operating and fault indications
Operating state and faults can be indicated in four
different ways:
• via the heating appliance displays;
• via the remote fault indication;
• via the LEDs on the MCM10 module;
• via the display of the RC35 system controller.
5.1 Operating and fault indications via
the heating appliance displays
The operating and fault indications for each heating
appliance can be checked via the heating appliance
displays. For further details about the operating and fault
indications, see the heating appliance documentation.
5.2 Fault message via the remote fault
indication
For example, a fault indicator can be connected to the
zero volt fault contact (
state of the remote fault indication is also shown via an
LED on the MCM10 (
LED OFF
No. Function Diagnosis
1 Line volt- Fault: No line volt-
age age.
2 Heating Operation: Pump
pump OFF
Tab. 9 Operating and fault indications on the MCM10 module
14
paragrahp 3.2.3, page 12). The
Tab. 9, page 14).
Remedy
Check power sup-
ply.
Replace MCM10
module.
5.3 Operating and fault indications via
LED
Generally, three different states in the overall system can
be identified:
• Configuration (during start-up and after a reset);
• standard operation;
• fault.
Depending on the state of the overall system, the LEDs on
the MCM10 module (
indications about the operating and fault state of
individual components, and thereby enable specific
troubleshooting (
Fig. 10 Operating and fault indications via LED
1 Line voltage (green)
2 Heating pump (secondary zone) (green)
3 Switching contact for remote fault indication 120 VAC
(red)
4 Communication between MCM10s (green)
5 Heating appliance 1 (green)
6 Heating appliance 2 (green)
7 Heating appliance 3 (green)
8 Heating appliance 4 (green)
ON
Diagnosis Remedy
Operation: Stan-
dard operation.
Operation: Pump
ON.
Fault: Pump will not Replace fuse
start although the ( paragrahp 5.5,
LED is ON, as the page 17).
fuse for pump out-
put has blown.
Fig. 10, page 14) provide
Tab. 9, page 14).
2 4
1 3 5 6 7 8
Flashing
Diagnosis
–
–
7 746 800 090-10.1O
Remedy
MCM10