Clip-In Module Oci420; Functions; General; Inputs / Outputs - Siemens LMU54 Series Basic Documentation

Functions

General

Note

Inputs / outputs

Interfaces to LMU...

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Siemens Building Technologies
HVAC Products
5 Clip-in module OCI420... for
communication via LPB
• Communication clip-in module for connecting LMU5... / LMU6... to the ALBATROS
range of controllers via a LPB interface
• Connection of the LMU... to
−
RVA46... zone controllers
−
RVA47... cascade controllers
−
RVA63... boiler and heating circuit controllers
−
RVA65... energy managers for solar, wood, etc.
−
RVA66... boiler and heating circuit controllers
−
OCI6... communication interface for remote supervision (in connection with
suitable ACS... software)
1)
Planned; on request
Maximum one clip-in module OCI420... can be connected to the LMU5... / LMU6... .
A maximum of 2 clip-in modules (OCI420 / AGU2.500... / AGU2.51x) can be connected.
Refer to «Connection diagrams».
• Connect X40 of the LMU... and OCI420... via cable AGU2.104
5.1 Connection of LMU... to ALBATROS via OCI420
(LPB clip-in)
The connection of the LMU... to the ALBATROS system represents a functional
extension which, in principle, comprises 3 applications:
1. Additional heating circuits that are controlled by an RVA46..., RVA63... or RVA66...
2. Support of external DHW heating, provided the types of RVA... controllers used offer
this facility (e.g. RVA63... or RVA66...).
3. Use of the LMU... in a multiboiler plant (cascade) that is controlled by a superposed
cascade controller.
5.1.1 Additional heating circuit extensions via ALBATROS
controllers
ALBATROS heating circuit controllers, such as the RVA46..., make it possible to
connect additional heating circuits to the LMU...
In that case, the BMU acts as the heat supplier to one or several external consumers
that are controlled by the RVA...
All sensors, pumps and valves required for operating the external heating circuit will be
connected to the relevant ALBATROS controller that evaluates and controls them.
It is practical to also use that controller for making all settings required in connection
with the extension of the zone (setpoints, time switch programs, etc.).
For the operation of external heating circuits, an appropriate hydraulic diagram must be
selected on the LMU... Suitable choices are diagram 64 through 76.
Basic Documentation LMU54... / LMU64...
5 Clip-in module OCI420... for communication via LPB
1)
CC1P7494en
07.11.2002