Rickard MCU 2 - Input to BMS; Zone;Master;Slave Diffuser Concept

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RICKARD 2019
MLM INTEGRATION WITH BMS
Input to BMS
 Space temperature, °C or °F
 Re-heater output, 0 to 100%
 Diffuser plate position, 0 to 100%
 Supply air temperature, °C or °F
 BacNet Mode
 System Idle (in control temperature band)
 Initializing
 Heating mode
 Cooling mode
 Motor in manual drive mode
 Occupancy state occupied/unoccupied
 Zone air pressure
 Zone air flow
 Averaged MCU inputs available on BACnet:
 Average disk position
 Average space temperature
 Lon Mode specific:
 Data from the MCU active
 Busy initializing
 Heating mode
 Cooling mode
Zone/Master/Slave Diffuser concept
The MLM Proprietary network can consist of up to 60 diffusers installed on 4 separate channels per MCU. Each
channel is connected to a maximum of 15 diffusers. They can be arranged into temperature control areas, with
each such area being populated with the number of diffusers required to satisfy the comfort control in that ar-
ea.
Areas of control are designated ‘zones’ and comprise a demarked space such as a room, hallway or office area.
Each such ‘zone’ will contain a single or multiple diffusers.
One diffuser in such a zone will be designated a ‘master’ diffuser and will ‘host’ the space temperature measure-
ment and setpoint facility.
Other diffusers in the same control zone will be designated ‘slave’ or ‘drone’ diffusers and will follow the
‘master’ control outputs.