Functional Description
CoolMaster User Manual 6
www.coolautomation.com © 2008 Cool Automation
Controlling the Air Conditioning System
·Operation mode - CoolMaster enables Home Automation controllers or BMS to set the operation
mode of each indoor unit independently. Cool, Heat, Fan, Dry and Auto operations are possible.
·For heat pump air conditioning system Coo" and Heat operation status cannot be set simultaneously for 2
different indoor units. For example, once at least one of the indoors has been set for Cool, all other indoor units
of the system cannot be set to Heat.
·In Daikin air conditioning systems one of the indoor units can be set as a master for Cool or Heat operation. In
this case, Cool or Heat operation of the entire air conditioning system may be carried only by sending the Cool
or Heat command to this specific indoor unit. Sending the Cool or Heat command to other indoor units will have
no effect.
·Operation status - CoolMaster enables Home Automation controllers or BMS to turn indoor units to:
ON and OFF.
·Set Point Temperature - The Set Point Temperature of each indoor unit can be changed separately
in two ways:
1. Defining the desired temperature.
2. Raising or lowering the existing set temperature by the defined delta.
·Fan Spped - CooMaster enables Home Automation controllers or BMS to change the fan speed of
the specified indoor unit.There are 4 available fan speeds: Low, Medium, High and Auto.
·Sanyo and Toshiba support all 4 Fan Speeds.
·Most of the Daikin indoor units support only 2 Fan Speeds: High and Low.
·Some of the new Daikin units (FXDQ-P and FXMQ) support 3 Fan Speeds: High (HH), Medium (H) and Low
(L).
·Reset Filter Sign - Each indoor unit is designed to show a reminder regarding cleaning of the filters.
After certain number of operation hours the "filter" sign will show on the local remote controller. The
time period, after which the sign appears may differ between different types of indoor units.
CoolMaster enables Home Automation Controllers or BMS to send a command to the system that
will reset the filter sign.
·Swing (On/Off) - CoolMaster enables Home Automation Controllers or BMS to change the status of
the "Swing" function on each indoor unit from "On" to "Off" and vise versa. Swing function is
available on wall mounted and cassette type
Plug&Play Device
When CoolMaster is connected to the air conditioning system, it does not require any additional
configuration. After connecting the wiring, supplying the power and defining addresses of the indoor
units (as explained in the installation chapter) the system is ready to work.
Field Upgradeable Firmware
When new features are added or some changes have been applied to the CoolMaster's functionality,
the firmware of the already installed CoolMaster can be easily upgraded by the user himself. The latest
firmware can always be downloaded from http://www.coolaut.com/secdown/ using the following user
name and password:
User : cooluser
Password : coolpasswd
The upgrade process is described in details in the Programmers Reference Manual.
Customizable for Specific Applications
CoolMaster has a number of optional functions, that can be ordered by request in order to fit specific
customer's needs. Example of optional features:
1. Digital/Analog I/O.
2. Connection to the additional devices, such as CoolEx, CoolBridge etc'.
