MLM Wall Comfort & Relative Humidity Controller
The Rickard MLM/MLC Wall Comfort & Relative Humidity Controller has been designed to give the user primary temperature control and secondary RH level control to maintain comfort levels and keep RH levels in check respectively. The Comfort & Relative Humidity Controller senses temperature and controls the temperature of the zone by modulating the damper of each VAV diffuser. When the RH value rises above a threshold value, the diffusers open fully until the RH value is brought down to an acceptable level. Thereafter the diffuser returns to primary temperature control mode. The Relative Humidity of the supply air should be lower than the rooms relative humidity for the system to work correctly.
If the diffuser is in RH flush mode, the user can override it to revert to temperature control mode if required. This can be activated by pressing and holding the enter button until the controller buzzes.
The Comfort & Relative Humidity Controller converts any drone diffuser into a master so that it can control a zone of up to 15 diffusers. The new design boasts a modern, slim body, a larger digital screen for easier reading and discreet buttons on each side for setpoint adjustment and advanced user control.
To use the temperature/RH functionality of the Comfort & Relative Humidity Controller it is necessary to activate it through the latest MLM application. You can either setup the system with the wizard (see setup at the end of this section).
The Rickard Wall Comfort & Relative Humidity Controller has been designed with discreet buttons located on either side of its body. One side allows straight forward temperature adjustment and the other advanced user control.
Right Hand Side Buttons
The buttons located on the right hand side adjust the temperature up or down. The Up button increases and the Down button decreases the temperature set point.
Left Hand Side Buttons
The buttons located on the side left hand side give the installer access to advanced commissioning functions. The Menu button is located above the Enter Button. Standard symbols depict Menu and Enter. Each press of the Menu buttons cycles through each option, the up and down buttons adjust the value and the enter button writes the value to memory. The RH flush mode can be overridden to revert to temperature control mode by pressing and holding the enter button until the controller buzzes.
The room temperature (default) or setpoint value will be displayed during normal temperature control mode.
FUNCTIONAL EDITING OPTIONS
The following display options are available.
Edit Set point Disable: When activated, the user is prevented from editing set point.
Setup Menu Enabled: When activated, the user has access to the Setup Menu.