Mitsubishi Electric PAC-AH125 Installation Manual Download | Manualshive

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GB

Air Handling Unit Controller

PAC-AH125, 140, 250, 500M-J

FOR INSTALLER

INSTALLATION MANUAL

For safe and correct use, please read this installation manual thoroughly before installing the controller.

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Summary of Contents for PAC-AH125

Page 1: ...GB Air Handling Unit Controller PAC AH125 140 250 500M J FOR INSTALLER INSTALLATION MANUAL For safe and correct use please read this installation manual thoroughly before installing the controller ...

Page 2: ...1 A Air handling unit controller PAC AH M J B Air handling unit field supply C Controller field supply D Outdoor unit E Heat exchanger field supply F Gas pipe G Liquid pipe H LEV kit I Thermistor gas pipe J Thermistor liquid pipe K Thermistor suction air L Thermistor discharge air 1 2 3 4 5 6 7 8 B L H I J K G F A C D E ...

Page 3: ...t C Brazing D Linear expansion valve E Outdoor unit F Refrigerant pipe size ø9 52 field supply G Distributor field supply H Refrigerant pipe size ø9 52 field supply I Refrigerant pipe size P400 ø12 7 field supply P500 ø15 88 field supply Fig 6 3 0 1 Fig 6 3 0 2 B A 400 274 A B A D C C E A Heat exchanger field supply B LEV kit C Brazing D Linear expansion valve E Outdoor unit Type 125 140 G G H H C...

Page 4: ... signal K Error signal output L LEV kit M LEV kit N Distant signal ON OFF O Error signal input P Thermistor suction air Q Thermistor gas pipe R Thermistor liquid pipe S Thermistor discharge air T To outdoor unit U Contact signal V To remote controller W Analog signal X Distant signal Y Thermistor Z Transmission A B D E C F A B G D E C F A C C D B B A A F T U V W N O P Q R L M S E M Z B C D L Y X G...

Page 5: ...smission cable B Terminal block for outdoor transmis sion cable C Remote controller Fig 7 2 3 Fig 7 2 4 A Non polarized B Remote Controller 8 9 Fig 8 1 1 A Address switch B SW2 Fig 9 0 1 A B D C TBY TBY TBY TBY S M1M2 S M1M2 TB3 M1M2 2 1 2 1 A A B C C TBY TBY S M1M2 S M1M2 TB3 M1M2 A A B C C DC10 13 V A B 1 2 A B 2 1 DC24 30 V A B 1 2 A B M2 M1 S A B ...

Page 6: ...d Interior Wire Regulations and the instructions given in this manual and always use a special circuit If the power source capacity is inadequate or electric work is performed improperly electric shock and fire may result Keep the electric parts away from water washing water etc It might result in electric shock catching fire or smoke Securely install the outdoor unit terminal cover panel If the t...

Page 7: ...quired If an leak circuit breaker is not installed electric shock may result Use power line cables of sufficient current carrying capacity and rating Cables that are too small may leak generate heat and cause a fire Use only a circuit breaker and fuse of the specified capacity A fuse or circuit breaker of a larger capacity or a steel or copper wire may result in a general unit failure or fire Do n...

Page 8: ... 250 400 500 Reference air flow rate in case of connection without standard indoor units m3 h 2000 2500 3000 4000 5000 8000 10000 Max air flow rate in case of connection with standard indoor units except cooling only m3 h 800 1000 1120 1600 2000 3200 4000 Min volume inside heat exchanger tube cm3 1500 1900 2150 3000 3750 6000 7500 Max volume inside heat exchanger tube cm3 2850 3550 4050 5700 7100 ...

Page 9: ... pro vided 50 cm away from the indoor unit s flare connection Warning When installing and moving the unit do not charge it with refrigerant other than the refrigerant specified on the unit Mixing of a different refrigerant air etc may cause the refrigerant cycle to malfunction and result in severe damage Caution Use refrigerant piping made of C1220 CU DHP phosphorus deoxidized copper as specified ...

Page 10: ...s no slack on all wire connections 5 Some cables power remote controller transmission cables above the ceil ing may be bitten by mouses Use as many metal pipes as possible to insert the cables into them for protection 6 Never connect the power cable to leads for the transmission cables Other wise the cables would be broken 7 Be sure to connect control cables to the indoor unit remote controller an...

Page 11: ...es 7 3 1 Connecting LEV kit cables Connect the lead wire of the linear expansion valve to the controller Pull the end of wire ring terminal through the bunch of wires LEV kit at the bot tom of the controller Connect the lead wire of the expansion valve to the same colored terminal When the lead wire is too long cut it to the appropriate length Do not bind it in the box This time connect the lead w...

Page 12: ...remain SW12 for over 10 at 0 and match SW11 for 1 to 9 with 3 2 How to set branch numbers SW14 Series R2 only The branch number assigned to each indoor unit is the port number of the BC controller to which the indoor unit is connected Leave it to 0 on the non R2 series of units The rotary switches are all set to 0 when shipped from the factory These switches can be used to set unit addresses and b...

Page 13: ... After 16 minute or more cooling operation and when 1 C or less of the thermistor detection temperature for liquid pipe is detected for 3 minutes in a row the linear expansion valve will be closed to prevent freezing The operation will be normal when either of the following conditions is met When 3 minutes have passed after 10 C or more of the thermistor detection temperature for liquid pipe is de...

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Page 16: ...anding it to the customer HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN Authorized representative in EU MITSUBISHI ELECTRIC EUROPE B V HARMAN HOUSE 1 GEORGE STREET UXBRIDGE MIDDLESEX UB8 1QQ U K WT05932X01 Printed in Japan The product at hand is based on the following EU regulations Low Voltage Directive 2006 95 EC Electromagnetic Compatibility Directive 2004 108 EC ...

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