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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'.

Summary of Contents for CoolMaster 1000D

Page 1: ...n 1 00 26 06 2012 CoolMaster www coolautomation com Universal Interface Adapter for VRV VRF Air Conditioning Systems CoolMaster 1000D CoolMaster 2000S CoolMaster 3000T CoolMaster 4000M CoolMaster 6000L CoolMaster 7000F CoolMaster 8000MH CoolMaster 9000H ...

Page 2: ...atures Functional Description 5 Specifications 7 7 Port Definition 8 Technical specifications Installation Instructions 9 9 Accessories 9 Placement and Mounting 10 Power Supply 11 Connecting to non VRV VRF Units 12 Connecting and Wiring 14 Precautions User Interface 15 15 LCD Screen Explanation 16 Led Functions 16 PC Connectivity 19 Commands List Troubleshooting 20 ...

Page 3: ...understanding and working with HVAC s internal Communication lines and gateways including their unique physical layers Now with the CoolMaster integrators will be provided only with a simple well documented open ASCII protocol over RS232 or USB to seamlessly integrate with any Home Automation applications The product is provided with LCD that continuously indicates the status of indoor units and m...

Page 4: ...F E PAC SF81MA Toshiba RAV series TCB PCNT30TLE2 LG Inverter splits PI485 Mitsubishi Heavy split units SC ADNA E Detailed description of connectivity can be found in Connection to non VRV VRF Units paragraph CoolMaster can be connected to different home automation controllers that have a controllable RS232 port Vantage Lite Touch Unitronics AMX Crestron Pronto Control4 Domintel etc BMS PC Main Fea...

Page 5: ...nit Fan Speed Currently set fan speed of the monitored indoor unit There are 4 available Fan Speeds High Medium Low and Automatic 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 Room Temperature This is the temperature measured in the return...

Page 6: ...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 Au...

Page 7: ...nal Lvel Description 2 12V TxD Data from Cool Master 3 12V RxD Data to Cool Master 5 GND Ground Connecting Cool Master to Home Automation Equipment According to RS232 specification cable length should not exceed 25m RS232 Cable supplied with Cool Master is 1 5m length suitable for direct connection to PC RS232 serial port Please note that for certain controllers it will be mandatory to use cable w...

Page 8: ...g Conditions Surrounding Temperature C 0 45 C Humidity Less then 85 RH Dimensions H x W x D mm 30 x 115 x 60 Weight gr 300 LCD Characters 16 x 1 Maximal number of indoor units Depends on the manufacturer Maximal number of outdoor units Depends on the manufacturer Maximal allowable wiring length to BMS over RS232 m 25 Communication functions RS232 9P RS232 Port Femail Connection Aircon Communicatio...

Page 9: ...t request depending on the desired installation location of the CoolMaster Name DIN Rail Fixing Wall Mounting Plate Quantity 1 1 Shape Currently N A Placement and Mounting 4 2 The CoolMaster should be placed in a dry ventilated place It is advised to be installed in the electricity cabinet near the BMS Home Automation controller since the length of the RS232 connecting cable is limited see Technic...

Page 10: ...ure there is a standard power plug point prepared near the CoolMaster for connection of the power transformer The supplied types of the power transformer are described in the following table AC Parameters Regions Countries Picture 110 120 v 60 Hz USA Canada Japan Mexico Brazil South America 220 240 v 50 Hz United Kingdom 220 240 v 50 Hz Australia New Zealand Asia 220 240 v 50 Hz Europe South Afric...

Page 11: ...or units in a regular VRV VRF system CoolMaster has to be connected to this line as shown in the following diagram When using the CoolMaster 1000D with KRP928 or DTA102 112 adaptors in Multi Split Sky air range of Daikin Air Conditioning systems a change should be made also inside the CoolMaster itself This change should be made only if there is no VRV Centralized Controller connected to this F1 F...

Page 12: ...ontroller Power Supply Connection The power plug is supplied with the CoolMaster and connected as shown in the following figure Connecting to the Air Conditioning Communication line The CoolMaster is simply wired to the Main air conditioning Communication Line anywhere within the system It can be wired to the terminals on one of the indoor units directly to the terminals on the outdoor unit or to ...

Page 13: ...f two wires with 0 75 1 25 mm2 cross section diameters The wiring diameters must be the same as the wires used within the air conditioning system according to the AC manufacturer requirements The total wiring length within the system should not exceed AC manufacturer limitations The following table describes the wiring specifications for different manufacturers Connecting to the BMS Home Automatio...

Page 14: ...ions 4 6 Attention 1 During the system automatic operations the CoolMaster must be disconnected from the system Examples of the automatic operations are Test Reset Automatic charge 2 Do not change the original positions of the quadruple dip switch SW1 inside CoolMaster when using it with VRV VRF systems ...

Page 15: ...lay of the CoolMaster Segment Number Description Range Example 1 Address of the indoor unit 100 815 101 2 Operation Status off on 3 Set Point Temperature 16 32 18 4 Fan Speed Low high Medium High Auto 5 Operation Mode Cool Heat Fan Dry Cool 6 Filter Sign 7 Error Status OK Normal Opearation U4 example of malfunction Ok Another screen shows the number of identified indoor units and number of groups ...

Page 16: ... Conditioning system the upper led starts blinking The lower led is currently not functioning PC Connectivity 5 3 When the CoolMaster is connected to the air conditioning system it is suggested to check its performance by connecting it to a PC or Laptop In order to do so the device has to be connected to the serial PC Port RS232 or to USB port by using a transformer cable RS232 to USB and appropri...

Page 17: ...arbitrary name should be chosen Then in the next window named Connect to a correct port has to be chosen at the bottom box called Connect Using for example modem com1 com4 etc Next the port setting has to be defined as following After finishing the above definitions if everything is correct the version of the CoolMaster software is ...

Page 18: ...aster User Manual 18 www coolautomation com 2008 Cool Automation supposed to appear at the top of the window At this point all the commands from the command list can be typed and transferred to the air conditioning system ...

Page 19: ...o mode fspeed fspeed UID l m h a Sets the unit s fan speed swing swing UID Turns on off swing operation stat Prints the status of the all indoor units stat stat UID Prints status of the specified indoor unit stat2 Prints the status of all indoor units including filter sign stat3 Prints the status of all indoor units when each parameter has a constant place in the string set set echo myid val allon...

Page 20: ... upper led is blinking c If the led is off check the wiring connection of the communication line 3 The communication does not work the system does not react to any of your sent commands a Improper serial port definitions b The centralized addresses of the indoor units are not defined c The wires transmit and receive of the RS232 cable are not twisted d Carriage return has not been added to your co...

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