Mitsubishi Electric Owners Manual - Enlarge page 1 
From inside (document excerpt):
GB WT04113X02 3 1. How to wire transmission line group 01 group 02 Indoor unit 002 TB5 TB15 TB5 6 group 03 Indoor unit 003 TB15 TB5 Group registration and interlocked registration (C) Returning to the normal state When all the group registration and interlock registration operations are completed, return to the normal state as described below. 0 Press and hold down the A [FILTER] and B [Louver ( )] buttons at the same time for two seconds.
The remote controller returns to the state of 1. 9 Repeat steps 7 and 8 above to interlock all the indoor units in a group with the LOSSNAY. When grouping by same refrigerant system CITY MULTI Control System ME Remote Controller Installation Manual PAR-F27MEA Outdoor unit 051 TB7 TB3 Indoor unit 001 TB5 TB15 Indoor unit 004 TB15 LOSSNAY 005 TB5 TB13 This manual describes installation of the ME remote controller that connects to CITY MULTI air conditioner indoor unit. Please read this manual thoroughly and install the remote controller accordingly. For information on how to wire and install the air conditioning units, refer to the installation manual for them. 101 102 152 103 Remote Controller Master Remote Controller Subordiate Remote Controller Remote Controller This operation should be performed to set a group of indoor units between different refrigerant systems and to manually raise the indoor/outdoor unit addresses. (A) Group setting . To register the indoor units you want to control with the remote controller, confirm the registered units, or delete registered units. (B) Interlock setting To register the LOSSNAY to be interlocked with indoor units, confirm the registered units, or delete registered units. [Setting Procedure] (1) Address registration Register the indoor unit address you want to control with the remote controller. TEMP. ON/OFF 1 Display “H0 “, which flashes when the power is on, or OFF using the [ON/OFF] butF C ton. A The liquid crystal displays are shown below. If any of these displays is different, the next G set cannot be performed. CLOCKONOFF To return to the normal state, go to step 0. To confirm the addresses, go to “(2) Registered address confirmation “. FILTER (2) Registered address confirmation Display the indoor unit address No. registered in the remote controller by performing steps 1 and 2. CHECK TEST PAR-F27ME TIMER SET E D (A) Group registration information confirmation A Displaying “GROUP REGISTRATION ” – Each time you press the E [Timer selection ( )] button, the registered indoor unit address No. and unit type are displayed. 1 Safety Precautions WARNING CAUTION This symbol denotes what could lead to serious injury or death if you misuse the PAR-F27MEA. This symbol denotes what could lead to a personal injury or damage to your property if you misuse the PAR-F27MEA. G Read these Safety Precautions and perform installation work accordingly. G The following two symbols are used to dangers that may be caused by incorrect use and their degree: G After reading this installation manual, give it and the indoor unit installation manual to the end user. G The end user should keep this manual and the indoor unit installation manual in a place where he or she can see it at anytime. When someone moves or repairs the PAR-F27MEA, make sure that this manual is forwarded to the end user. WARNING Ask your dealer or technical representative to install the unit. Any deficiency caused by your own installation may result in an electric shock or fire. Install in a place which is strong enough to withstand the weight of the PAR-F27MEA. Any lack of strength may cause the PAR-F27MEA to fall down, resulting in personal injury. Firmly connect the wiring using the specified cables. Carefully check that the cables do not exert any force on the terminals. Improper wiring connections may produce heat and possibly a fire.