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Maximum 3 extension modules can be connected to an LMS 14 mainboard. In case of using a
double or triple extension module set (please also refer to Section 2.4.2 Additional Accesories)
neither than a single, the cable with 5 connectors in the above picture must be used to make the
connection. The extension modules starting from the first which is located at the back side of the
front control panel and the second and the third, the ones mounted below the boiler, should be
connected as in the image. The furthest cable connector to the X50 terminal, the first extension
module to the adjacent cable connector, and the second and the third modules to the last two
cable connectors.
After making the connections, all the extension modules are being capable of energizing and
controlling the related 3-way diverting valves or other equipment through their relay outputs and
sensor terminals.
page and define the function of extension module.
Assume for instance that you have one heating circuit with a mixing valve. Under the
Rev: RINNAI Service manual (English)
Date:14/05/2019
The
connected to the boiler as seen
in the left image. An additional
extension
plate must be used in order to
make the second and the third
extension modules on the boiler.
It is easy to attach the plate.
Firstly, unscrew the left holder
extension module plate with the
screw holes and the holder plate
concentrically and re-screw from
above all.
74
extension
modules
module
mounting
Configuration
are
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