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• Before installing the Mounting attachment B type, please read the following safety precautions carefully to ensure proper 

installation.

• Observe the following precautions to ensure safety.
• The following symbols are used in this manual to indicate the type and severity of potential consequences that may result when 

given instructions are not followed exactly as stated.

• After the completion of installation, perform a test run to confirm proper operation.
• Retain this manual for future reference. When the unit is reinstalled or repaired, make this manual available to those who provide 

these services. Make sure that the manual is passed on to any future air condition system users. 

1

Safety Precautions

 WARNING

Indicates a risk of death or serious injury.

 CAUTION

Indicates a risk of injury or damage to the product.

 WARNING

 CAUTION

Air-conditioner Control System

Optional Parts

Mounting attachment B type for use with AG-150A

PAC-YG81TB

Installation Manual

Applicable 
Model

Centralized Controller

AG-150A

Only a dealer or qualified technician should replace 
the unit. 

Improper replacement by an unqualified person may result 
in electric shock or fire.

The Mounting attachment B type should be installed 
on a surface that is strong enough to support the 
weight of the unit.

If the Mounting attachment B type is installed on a surface 
that lacks the strength to support it, it may fall and cause 
injury.

Do not attempt to modify or repair the Mounting 
attachment B type.

Modification or improper repair may result in electric shock 
or fire. Consult your dealer when repairs are necessary.

Install the Mounting attachment B type properly 
according to the instructions detailed in this 
Installation Manual.

Improper installation by an unqualified person may result in 
electric shock or fire.

Electric work must be performed by authorized 
personnel according to the local regulations and the 
instructions detailed in the Installation Manual.

Inadequate circuit capacity or improper installation may 
result in electric shock or fire.

Ask your dealer or an authorized technician to move 
the Mounting attachment B type. 

Improper installation by an unqualified person may result in 
electric shock or fire. Consult your dealer or a qualified 
technician.

Do not install the Mounting attachment B type where 
there is a risk of leaking flammable gas.

If the leaked gas accumulates around the Electric Box, it 
may ignite and cause an explosion.

Do not use the Mounting attachment B type in an 
environment that has high concentrations of oil, 
steam, or sulfuric gas.

These substances may have adverse effects on the 
performance of the Mounting attachment B type or 
damage its parts.

Seal the wire access holes with putty to prevent dew, 
water, and insects from entering to avoid electric 
shock.

Do not install this Mounting attachment B type in a 
place that has the potential for steam, such as a 
bathroom or kitchen. 

Steam may cause an electric shock or a unit malfunction.

Do not install this Mounting attachment B type where 
an acid, alkaline solution, or special chemical spray is 
used frequently to avoid electric shock or malfunction.

Keep the cables from coming in direct contact with the 
edges of the wire access holes. 

If the cables are damaged, they may cause electric shock 
or fire.

This Mounting attachment B type is for exclusive use 
with the AG-150A and cannot be used with other 
devices.

Summary of Contents for PAC-YG81TB

Page 1: ... Install the Mounting attachment B type properly according to the instructions detailed in this Installation Manual Improper installation by an unqualified person may result in electric shock or fire Electric work must be performed by authorized personnel according to the local regulations and the instructions detailed in the Installation Manual Inadequate circuit capacity or improper installation...

Page 2: ...0A including the Mounting attachment B type PAC YG81TB is 2 7 kg 6 0 lbs Use screws with the head size of between 7 0 and 8 8 mm 5 16 and 6 16 in 2 Parts List Name 1 Mounting attachment B type PAC YG81TB 2 AG 150A mounting screws 3 LAN link up cable Quantity 1 4 1 Shape 3 Field supplied parts Name 1 Wall mounting screws M4 Quantity 6 4 External Dimensions Roundhead screws M4 16 299 11 13 16 184 7 ...

Page 3: ... type PAC YG81TB at the top with a nipper for the cable the thin part of the plastic 2 Sand the cut surface of the knockout hole smooth 5 Selecting an Installation Site 6 Installation CAUTION Any rough edges that are left may damage the cable and cause electric shock or fire Mounting attachment B type PAC YG81TB Unit mm in 30 1 3 16 151 6 184 7 1 4 299 11 13 16 30 1 3 16 121 4 13 16 UP NOTE Instal...

Page 4: ... Install it on the surface strong enough to support its weight 4 Push the cable through the knockout hole 5 Remove AG 150A surface cover NOTE Install the Mounting attachment B type PAC YG81TB so that the arrow ÇUP on the back of it points up Wall Wall Insert a flat tip screwdriver in the holes indicated and move the handle up to remove the cover ...

Page 5: ...eal the cable lead in port with putty to prevent dew water and insect etc from entering CAUTION When routing the cable from the top of the controller let the cable hang down below the connector before connecting it to the terminal block or connector as shown in the figure below to prevent water from running down the cable and cause electric shock or fire Terminal block or connector Good example Ba...

Page 6: ... 6 9 Install the AG 150A with the four screws that are supplied If the LAN link up cable is used place it inside the Mounting attachment B type 10 Attach the cover on the AG 150A ...

Page 7: ...e six mounting screws field supplied Use screws that are suitable for the wall type Install it on the surface strong enough to support its weight CAUTION Any rough edges that are left may damage the cable and cause electric shock or fire NOTE Install the Mounting attachment B type PAC YG81TB so that the arrow ÇUP on the back of it points up Knockout hole NOTE Install the Mounting attachment B type...

Page 8: ...6 Connect the cable to the AG 150A Refer to the AG 150A Installation Manual for details Insert a flat tip screwdriver in the holes indicated and move the handle up to remove the cover M NET transmission cable Shield DC power cable Back of controller Functionearthing ground cable ...

Page 9: ...0A is always connected to the LAN connect the LAN cable field supplied via a HUB and the LAN link up cable is not required 8 Install the AG 150A with the four screws that are supplied If the LAN link up cable is used place it inside the Mounting attachment B type 9 Attach the cover on the AG 150A LAN LAN link up cable supplied ...

Page 10: ...tenance access panel 1 Unscrew the four screws on the panel with a Phillips driver 2 Remove the panel by placing your finger on the dent at right and pulling it down If the AG 150A is not always connected to the LAN connect a LAN cable to the LAN link up cable through this maintenance access panel to upgrade the AG 150A software as necessary 7 Access panel Bottom view Bottom view Dent LAN cable PC...

Page 11: ......

Page 12: ...Authorized representative in EU MITSUBISHI ELECTRIC EUROPE B V HARMAN HOUSE 1 GEORGE STREET UXBRIDGE MIDDLESEX UB8 1QQ U K WT05422X02 Printed in Japan Recycled Paper Please be sure to put the contact address telephone number on this manual before handing it to the customer ...

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