5
RICKARD 2018
MLM RF OPERATION MANUAL
The following MLM RF hardware models are available:
BU2011-2 MLM 24 RF Access Point
BU2111-2 MLM 24 RF Wallstat
BU2211-2 MLM 24 RF Remote Thermostat
Installation and Commissioning
The MLM RF units are fitted onto a standard MLM 24 installation. It interfaces to the MCU 2 V6.20, with the
MLM Tool V8.16, used for commissioning and diagnostics.
Note that when reference is made in this document to the End Device it refers to both the Wallstat and POD
sensor devices, the main difference between devices being the Wallstat LCD display.
Hardware Installation
The RF system requires an AP (Access Point) to be installed within a 50 meter radius of the remote units, either
Wallstat or POD sensor. One AP can be installed per Power Pack unit at any point on the MLM24 slave cabling
link. Ensure the AP is installed at a central vantage point, normally inside a ceiling void. Ensure the antennae
wire protruding from the AP enclosure is flexed in a vertical position. The AP is supplied with a 2m cable, install
at least one meter away from any sheet metal objects. Ensure the AP is securely fixed.
A maximum of 15 Wallstats or POD sensors can be installed per AP. Any combination of Wallstat and POD sen-
sor is allowed provided the total does not exceed 15 units. Please follow the installation instructions provided
indicating how to fit the remote unit back shell to a wall. Fit two of the correct battery types to each remote
unit, ensuring the correct polarity as indicated in pictures below. The batteries to be used are 1.5V AAA lithium
cells. Clip the remote unit onto the back shell. The remote unit will be in sleep mode with the LCD screen
switched off.
Battery Polarities
RF Wallstat
RF POD Sensor