Centralized Controller G-50A

2. Examples of G-50A utilization (1) Make the control work more efficient by remote control and operation. 1) While you are at your desk doing paper work, you can monitor and control air conditioners from a PC on your desk. 2) When you leave the office for the day, you don’t have to check every remote controller to make sure the power is off. ON/OFF operation can be made collectively from a PC. 3) You can monitor and control air conditioners in remote buildings (via LAN or public phone lines). 4) If you take a lap top PC and PHS with you, you can monitor and control the system away from your office. 5) You can prohibit ON/OFF operation, temperature setting change, and operation mode change by local remote controllers. (2) Energy saving is possible through annually schedule operation 1) By adding optional functions, you can have extended weekly schedule operation and annual schedule operation. (You have to specially register the setting in a PC.) 2) Besides ON/OFF operation, you can schedule operation mode and temperature settings by the unit of minutes. 3) Prohibition of ON/OFF operation, temperature setting change, and operation mode change can be set to the minute so that you can control temperature settings well and never forget to turn off the switch. Example 1: ON/OFF switch can be prohibited during night, making the air conditioning unit inoperable during night. Example 2: Fix the room temperature at 25 C for air conditioning during the intermediate season. Example 3: Energy-saving operation is possible by making the unit inoperable during lunch break or setting the room temperature on a higher side and fixing it. 4) Shops and stores can have air conditioning operation adjusted by pre-setting the room temperature depending on the estimated turnout of visitors for the day. 5) The day’s schedule can be adjusted each day, and air-conditioning in a meeting room can start /stop at a pre-set time. G-50A G-50A G-50A G-50A G-50A G-50A unit License registration (No) License registration (Yes) Weeks On the web TG-2000A Weekly/ annual Weekly/ annual If the annual schedule license is registered, the standard weekly schedule function on the main unit will become inoperable. Extended weekly/annual schedule example G-50A (G-50A provides a billing system in each building) Maintenance Company The optional software can store electricity billing data calculated for each tenant. All I have to do is retrieve the data into spreadsheet software and process into bills. It is very convenient and efficient. (3) Air conditioning charge data can be freely processed on a PC. 1) Air conditioning charge can be calculated as an option. 2) Air conditioning charge data can be edited and processed on a PC. 3) If you build a PC network, you can get the electric power apportioned charge data from a remote location and the transaction can be made without human intervention such as transferring or posting data. 4) If the electric power apportionment function is used, you can confirm the integrated running time of each air conditioning unit. Bill G-50A (4) With the existing air conditioners, energy saving can be accomplished. G-50A G-50A Case: 1 Remote controllers and wires can be destructive to interior design. 1) Energy saving operation will enable energy saving easily. (5) By eliminating the use of local remote controllers, the interior aesthetics will be enhanced. 1) If you are bothered by the design of a remote controller or wiring in the room, you can get rid of them. 2) In a lobby or a place with high traffic, or if you don’t want students or patients to handle a remote controller in a classroom or in a hospital, you can eliminate use of a local remote controller. (6) Various interlock operation is possible using a sequencer. 1) With an interlock to “key lock” and “human thermal sensor” as an energy-saving measure, you can stop the operation of an air conditioning unit when the room is locked or there is nobody inside. 2) Detecting the upper limit and lower limit of the local humidity sensor or temperature sensor, cooling/heating and dry operation can be activated or stopped. (7) Notice of error code via mail at malfunction 1) In case of a machine trouble, the unit number with the faulty operation and the code number for the trouble will be sent by email. Since the type of trouble can be promptly communicated and the spare parts can be arranged in advance, a swift recovery will be possible. In case of “Mr. Slim”, the code will be displayed on G-50A in 4 digits. Basically they are same as Building Multi, but there is one code unique to Mr. Slim, that is “68**” for a Mr. Slim indoor/outdoor unit communication error. Case: 2 Remote controllers need to be avoided or concealed in high-traffic areas such as building lobbies. G-50A Shop G-50A Office Case: 3 Remote controller groupings and locations are subject to frequent change in locations such as tenant buildings I can check the nature of troubles without asking customers. It is convenient. G-50A Coffee Shop G-50A Air conditioners of different outlets are constantly monitored. Reports are provided to the designated e-mail addresses in the event of troubles. Quick restoration is possible thanks to the ability to understand the nature of troubles early. -3-

3. G-50A controlled air conditioners; specification; external dimension; description of control (1) G-50A controlled air conditioners Energy-saving control (Energy-saving control items) Control/ management Type (the series name) Electric power apportioned charge (Electric energy pulse count) Fan speed Room temperature setting Capacity saving CITY MULTI Y Series (8 20HP) 2 C (60 90%) CITY MULTI Super Big Y Series (24 30HP) 2 C (60 90%) CITY MULTI R2 Series (8 20HP) 2 C (60 90%) CITY MULTI WR2 Series (8, 10HP) 2 C (60 90%) 2 C (60 90%) *1 CITY MULTI WY Series (8, 10HP) 2 C CITY MULTI S Series Mr. Slim Series (A-control) *3 (Each billing unit needs a watt hour meter installed.) 2 C x (Each billing unit needs a watt hour meter installed.) 2 C x x x Split Type Air Conditioner (A-control) x K-Control Series *2 Lossnay (GUF Series : OA processing Units) (Incase it’s set as an indoor unit) Lossnay (LGH Series) (Each billing unit needs a watt hour meter installed.) x *1 Pump and cooling tower power supply cannot have apportioned charge. However, a watt-hour meter may be mounted to each billing unit for solution. *2 Due to K-control type, individual items cannot be prohibited or permitted. It also requires K-control converter. *3 Requires A-control adapter. (2) G-50A unit specification Item Product dimension Weight Power source Rated current consumption Rated power consumption CPU Display Network Description 300mm(width) x 120mm(height) x 79mm(depth) * Thickness of the exposed section is 22mm. 1.0 kg DC24V, 12V * Power is fed from a power supply unit for transmission lines. 0.2A 6W ROM 14M bytes (flash memory) RAM 16M bytes (SDRAM) Liquid crystal 128 x 160 dots Batch ON/OFF LED x 1 M-NET, Ethernet (10BASE-T), external output/input terminals (input 4, output 2, A relay up to 0.9W can be connected.) (3) G-50A Exterior view G-50A Mounting plate -4-

(4) G-50A unit control functions Function Indoor units and Lossnay No. of indoor units in one group No. of manageable units No. of remote controllers in one group System controllers in one group Description Up to 50 sets can be connected. (including interlocked units) 1 16 sets (Same for Lossnay with no interlocking. However, you cannot have both indoor units and Lossnay in the same group.) 0 2 sets 0 4 sets (Total number of remote controllers and system controllers in one group should not exceed 4.) Number of interlocked units (Lossnay) connected to one interlocking unit (indoor unit) is Interlocked units 1. Number of interlocking units (indoor units) that can be registered in one interlocked unit (Lossnay) is 16. Power ON/OFF All or group of units can be turned ON/OFF collectively. Operation mode can be switched between cooling/dry/heating/fan/automatic for all or Operation mode group of units collectively. (If the group has only Lossnay’s, heat exchange/normal/automatic in ventilation mode can be switched over.) Air velocity A 4-step change can be made for a group or all of units collectively. (Certain models have only 2 or 3 steps.) Room temperature can be set collectively for all or group of units. Room temperature setting (The room temperature range varies depending on the type of units to be connected.) Temperature range Cooling Heating Automatic 19ºC 30ºC 17ºC 28ºC 19ºC 28ºC The airflow direction can be changed among 4 different vertical directions and swings for Airflow direction setting all or group of units collectively. (The available airflow directions can be different depending on the model.) Operation ON/OFF of interlocked units (Lossnay) Prohibition of control from local remote controllers Standard functions In case there is an interlocked unit (Lossnay), ON (high or low) and OFF switchover can be made for all or group of units collectively. (However, an interlocked unit cannot select a ventilation mode.) You can choose and set some items that cannot be controlled from the local remote controllers for all or group of units collectively. (Such items include ON/OFF, operation mode, room temperature, and filter sign.) A weekly schedule operation can be made for a group of units. 4 types of operation patterns (P1 – P4) can be set weekly. (P4 is the prohibition of control Timer operation from the local remote controller.) ON/OFF can be set 3 times per day. Room temperature setting and setback operation can be interlocked to the timer operation. Filter sign reset External input ON/OFF (batch) Operation status per group Monitor functions Monitor System Group setting Trouble history monitor of interlocked units, time operation valid/invalid will be indicated for each group. Address of the unit having trouble and its error code, and address of the unit whose trouble has been detected will be displayed. Batch ON/OFF and any abnormality signals can be output to outside. (A separate external input/output adaptor is needed.) Indoor units, Lossnay, remote controllers and lower class system controllers will be grouped together and registered. Indoor unit as an interlocking unit will be registered in an interlocked unit (Lossnay). Up to 64 past troubles will be stored in the memory. (The newest trouble is on top of the list, totaling to 64 of them in a chronological order) Refrigerant system monitor For each outdoor unit, actually connected indoor units can be confirmed. Transmission and reception of In case operation by a local remote controller is to be prohibited, whether it should be prohibition Connection /interlocking Data backup ON/OFF, operation mode, air velocity, room temperature setting, airflow direction, ON/OFF Filter cleaning sign will indicate the timing of cleaning for each group Prohibition transmission target Others stopped. The content of the prohibition by this unit or another unit will be displayed. Interlocking setting setting A batch ON/OFF lamp will indicate one or more group is running or the entire group has Prohibit local control External output Initial external input/output adaptor is needed.) Filter sign Trouble occurrence Control Filter sign display reset can be done for all or group of units collectively. Emergency stop, ON/OFF, prohibit/permit can be set from outside collectively. (A separate commanded from the main unit or from another controller will be determined. In case of an operation prohibit, whether it should be only for a local remote controller, or it should include other controllers will be determined. Grouping information and interlock setting information will not be lost even when the power information is off. Trouble history It would not be lost even when the power is off. Timer operation The schedule information for each group will not be lost even when the power is off. Even when the power is off, the time clock will be run by the internal condenser for about Current time one week. (Recharging the internal condenser will take about one day. Battery replacement is not necessary.) -5-

4. Special considerations about the use of G-50A, due to its difference from conventional models, and the concept of the upper class and lower class (1) Special considerations about the use of G-50A, due to its difference from conventional models 1) A group of indoor units cannot be controlled by more than two G-50A units. You cannot have multiple connections of G-50A within the same group. If you want to have 2 separate centralized control within the same group, use one G-50A and one system remote controller, or something equivalent. (The reason is described below in the concept of upper class and lower class.) 2) G-50A cannot be used together with the system controller like MJ-300 that are higher in class than G-50A. (2) The concept of upper class and lower class pertaining to G-50A *Upper class system controller and lower class system controller This unit (G-50A) always functions as an upper class system controller. controller. It can not be treated as a lower class system Upper class system controller (upper class SC) A system controller that encompasses the control scope of all other system controllers is called “upper class system controller”. Also, if there is only one controller in the entire system, that controller becomes the upper class system controller. Only the upper class system controller needs to have a group setting and interlocking operation setting. Lower class system controller (lower class SC) A controller whose entire control area is controlled by an upper class system controller is called a lower class system controller. Control scope of upper class SC Control scope of lower class SC Group Group Group This unit is for upper class SC use only. It cannot be used as a lower class SC and controlled by upper class SC (gateway and others). The following group settings cannot be made. A group outside the control of the upper class system controller is controlled by a lower class controller. Upper class system controller Group Lower class system controller Group Group Two or more system controllers control the same group of units. Upper class system controller 1 Group Upper class system controller 2 Group Group Therefore, G-50A always has to be an upper class system controller. G-50A can never be used as a lower class system controller. -6-

5. System configuration examples for G-50A stand-alone application, equipment address setting and power supply (1) G-50A stand alone system configuration (no connection to PC, monitor and operation to be done by G-50A unit) (Example 1) When air conditioners and Lossnay are mixed in the system K-control outdoor unit TB7 Indoor unit Group 11 12 13 K 11 M-NET outdoor unit 057 Numbers in Group 3 058 007 Indoor/outdoor system M-NET outdoor unit (Group number) BC controller TB3 Centralized control system 14 K 13 (Group number) TB7 Local remote controller M-NET type : PAR-F27ME(A) PAC-SE51CR(A) PZ-52SF/52KF2(LR) MA type : PAR-20MA(A) PAR-FA(FL)31MA M-NET transmission line K-control transmission line MA type remote control line TB3 11 K-control transmission converter 211 PAC-SC25KAA Group 13 show address numbers. Group 4 008 ME 106 Lossnay Lossnay 009 010 LR 109 Lossnay remote controller Group 1 Group 2 051 TB7 TB3 001 002 003 004 005 006 Lossnay ME LAN Centralized controller Model G-50A (Example 2) ME ME 000 Power supply unit for transmission lines (option) Model PAC-SC50KUA When only Lossnay are in the system Transmission line power supply extension unit (option) Model PAC-SF46EPA Group 1 Lossnay Lossnay Lossnay Lossnay 001 002 003 004 Lossnay remote LR controller 000 LAN 101 Centralized controller Model G-50A Group 2 Lossnay remote LR controller 103 Power supply unit for transmission lines (option) Model PAC-SC50KUA Power supply lines are omitted from this diagram, showing only the transmission lines. This shield for M-NET centralized system transmission lines should be grounded at a single point through the transmission line power supply unit. Indoor/outdoor transmission lines should be grounded for each outdoor unit system. M-NET outdoor unit centralized control switch (SW2-1) should be always “ON”. (2) Address setting for equipment Indoor unit Address setting method Address The lowest number should be given to the indoor unit functioning as the parent unit within the same group. Give the serial numbers to the indoor units in the same group. 1 50 Outdoor unit Take the lowest number of indoor unit address within the same refrigerant system and add 50 to it. Outdoor auxiliary unit (BC controller, etc.) Take the address of the outdoor unit within the refrigerant system and add 1 to it. Lossnay After all the indoor units are given the address, choose any number as address. M-NET remote controller Take the lowest number of indoor unit (parent unit) address in the same group and add 100 to it. However, in case of a subordinate remote controller, add 150 to it. 101 200 MA type remote controller Address setting is not necessary. In case of 2 remote controller operation, however, main/subordinate switching setting is necessary. K-control indoor unit After all the M-NET indoor units (including Lossnay) are assigned a number, the next number should be set for K-control indoor units. 1 50 K-control remote controller Take the lowest number given to the K-control indoor unit (parent unit) in the same group, and use the same address. K-transmission converter The lowest number of the K-control indoor unit 200 should be used as address. -7- 51 100 52 100 1 50 1 50 201 250

(3) G-50A power supply 1) In case a transmission line power supply unit is used. Transmission line power supply unit (connected to centralized control transmission lines) Maximum number of G-50A connection in one system Remarks 1 set Other system controllers (PAC-YT40ANRA, etc.) cannot be connected to centralized control system transmission lines on the outdoor unit TB7 side. In such a case, the controller should be connected to indoor/outdoor system transmission lines. PAC-SC50KUA 2 sets When only one G-50A is connected. Up to 3 other system controllers can be connected to the centralized control system transmission lines. When 2 of G-50A are connected. (When the system of 50 or less indoor units is divided into two groups, and each is controlled by G-50A.) Only one other system controller can be connected to the centralized control system transmission lines. 2) Points to notice when connecting to indoor/outdoor transmission lines The system controllers that can be connected to indoor/outdoor transmission lines are: G-50A, MJ-103MTR-A, PAC-YT34STA, PAC-SF44SRA, PAC-SC30GRA. However, the outdoor unit City Multi S PUMY-P Series cannot have a system controller connected to indoor/outdoor transmission lines. Also, in case connecting a system controller to indoor/outdoor transmission lines, the system controller becomes unable to control once the outdoor unit power supply is shut off. Please give enough precaution to that point. In case you use the electric power apportioned charging ("Air Con Electricity Charge") function, as an option to the centralized controller G-50A, do not connect G-50A to indoor/outdoor transmission lines. Up to 3 system controllers can be connected within the same refrigerant system, and only one G-50A unit can be one of those 3. In that case, the number of connectable indoor units will be 4 less. If other system controllers are used, the number of maximum connection per group will be 2 less per system controller. -8-

6. External I/O functions External I/O functions Using an external I/O adapter (PAC-YG10HAA), you can send contact signals and pulse signals to control a batch ON/OFF of air conditioners connected to G-50A. G-50A(CN2) G-50 (CN2) Connector of external I/O adapter (PAC-YG10HAA) To be connected to G-50A (CN2) (1) External input Using energized contact signals (DC12V or DC24V) from outside, it can operate emergency stop/normal, ON/OFF, prohibit/permit of local remote controllers for all the air conditioners under its control. Function setting switch No. 6 No. 7 No External input signal functions 1 External input signals not to be used (default at shipment) OFF OFF 2 Emergency stop/normal will be executed by level signals. OFF ON 3 ON/OFF will be executed by level signals. ON OFF 4 ON/OFF and prohibit/permit will be executed by pulse signals. ON ON (2) Level signals and pulse signals (A) Level Signals Contact ON OFF Contact OFF Contact ON Contact OFF Normal ON (B) Lead wire Orange Yellow Blue Gray Red During emergency stop, ON/OFF by a local remote controller, and ON

G-50A Sales Manual CONTENTS 1. . Electric power apportionment information can be obtained to calculate air conditioning charge for each area. (Optional function. A separate license number has to be input.) Using electric power apportionment function (optional), you can enter the electric power apportionment data for each indoor unit into a PC .