CoolMaster User Manual CoolMaster 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 Revision 1.00 26/06/2012 © 2008 Cool Automation www.coolautomation.
CoolMaster User Manual Contents 2 Table of Contents Foreword 0 General Description 3 Overview ...................................................................................................................................3 Compatibility ...................................................................................................................................3 Main Features ................................................................................................................
CoolMaster User Manual 1 General Description 1.1 Overview General Description 3 CoolMaster is a versatile seamless Control adapter connecting VRV / VRF Air Conditioning Systems with any RS232 or USB featured devices like Home PCs, Embedded PCs or Home Automation Controllers. Connecting such Controllers through common RS232 or USB interfaces with the CoolMaster will provide end-users with full control of all indoor units enabling them with access to HVAC's various functionalities including diagnostic.
CoolMaster User Manual Fujitsu Mitsubishi Heavy Hitachi General Description 4 CoolMaster 7000F CoolMaster 8000MH CoolMaster 9000H In VRV/VRF air conditioning system, regardless of the specific AC manufacturer, CoolMaster should be connected to the main air conditioning communication line. The specific details about connection to the AC system are provided in Connection and Wiring paragraph. Using the CoolMaster with non VRV/VRF systems will require additional interface adaptors for each indoor unit.
CoolMaster User Manual 2 Functional Description 5 Functional Description Simple RS232 Interface for Easy Integration CoolMaster is equipped with an RS232 serial port. The port can be used in two different ways: 1. Configuration and monitoring of the air conditioning system from PC using simple Windows based terminal program. (See PC connection) 2. Connected to Home Automation controller or BMS. See Commands List for brief description of supported commands.
CoolMaster User Manual Functional Description 6 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.
CoolMaster User Manual 3 Specifications 3.1 Port Definition Specifications 7 RS232 Interface connector used in Cool Master is D-Type 9-pin DB9 female connector. Cool Master DB9 Connector front view DB9 Pin 2 3 5 Signal Lvel ±12V ±12V GND Description TxD (Data from Cool Master) RxD (Data to Cool Master) 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.
CoolMaster User Manual 3.2 Specifications 8 Technical specifications Item Power Supply Installation Method Surrounding C Temperature Humidity % Dimensions HxWxD mm Weight gr LCD Characters Maximal number of indoor units Maximal number of outdoor units Maximal allowable wiring length (to BMS over m RS232) RS232 Communication functions Aircon Communication Operating Conditions www.coolautomation.
CoolMaster User Manual 4 Installation Instructions 4.1 Accessories Installation Instructions 9 Standard Accessories The following accessories are shipped in the kit. The power adaptor can be selected according to domestic AC standards (see Power Supply). Name Quantity RS232 Cable 1 Power Adaptor 1 Shape Optional Accessories The following accessories can be supplied at request depending on the desired installation location of the CoolMaster. Name Quantity DIN Rail Fixing 1 Shape 4.
CoolMaster User Manual 4.3 Installation Instructions 10 Power Supply The CoolMaster device requires standard power supply of 9V DC voltage. The power transformer is included in the kit and varyies according to the country of the user. Please make sure there is a standard power plug point prepared near the CoolMaster for connection of the power transformer.
CoolMaster User Manual 4.4 Installation Instructions 11 Connecting to non VRV/VRF Units CoolMaster can be used also with split units. In this case each indoor has to be provided with a communication interface (for example, D3 net interface for Daikin Units, M-Net interface for Mitsubishi Electric units, etc').
CoolMaster User Manual 4.5 Installation Instructions 12 Connecting and Wiring Connecting the CoolMaster to the system is done by 3 steps: 1. Power supply connection. 2. Connecting to the Air Conditioning Communication line. 3. Connecting to the BMS/Home Automation controller. Power Supply Connection The power plug is supplied with the CoolMaster and connected as shown in the following figure.
CoolMaster User Manual Installation Instructions 13 Make sure to connect the communication wires to exact terminal names according to the table below.
CoolMaster User Manual 4.6 Installation Instructions 14 Precautions 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. www.coolautomation.
CoolMaster User Manual 5 User Interface 5.1 LCD Screen Explanation User Interface 15 Two types of screens can appear on the LCD of the CoolMaster. One screen shows the indoor units status, as shown in the figure and the explanation table below. The following table describes what is shown on the LCD Display of the CoolMaster.
CoolMaster User Manual 5.2 User Interface 16 Led Functions The unit is equipped with 2 leds, as can be seen in the figure below. Leds indicate whether there is a communication with the Air Conditioning system. When there is no communication, the upper led is off. When the CoolMatser senses the communication from the Air Conditioning system, the upper led starts blinking. The lower led is currently not functioning. 5.
CoolMaster User Manual User Interface 17 In the opened window “Connection Description” an 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 www.coolautomation.
CoolMaster User Manual User Interface 18 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. www.coolautomation.
CoolMaster User Manual 5.
CoolMaster User Manual 6 Troubleshooting 20 Troubleshooting Symptom The LCD of the CoolMaster is off 1 (there is no visible display on it). After connecting the CoolMaster it does 2 not show on its LCD the correct number of indoor units. Cause a. Incorrect power supply a. Check the power adaptor and supplied voltage. Must be stable 9v DC. a. It takes several minutes to recognize the system. b. The communication line to the air conditioner is connected improperly. a. Wait for about 5 minutes b.
