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Mitsubishi Electric CITY MULTI PAC-AH001-1, Руководство по обслуживанию

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Table of Contents

1. Safety Precautions  ..................................................................................................................  5

Read before installation and performing electrical work  .........................................................  5
Symbol explanations ...........................................................................................................  5

Symbols used in the text  .............................................................................................  5

Precautions for handling units for use with R410A .................................................................  7

2. Features .................................................................................................................................  8
3. Part Names and Functions  ......................................................................................................  9

3.1. System Assembly .........................................................................................................  9
3.2. Installation Detail for Single LEV Assembly  ....................................................................  9
3.3. Installation Detail for 2 LEV Assemblies in Parallel  ........................................................ 10
3.4. Remote Controller  ....................................................................................................... 11

3.4.1. City Multi

®

 Remote Controller, PAC-YT53CRAU  ................................................. 11

3.4.2. 3rd Party Controller  .......................................................................................... 13

4. Specifications  ........................................................................................................................ 14

4.1. AHU Controller Specifications  ...................................................................................... 14
4.2. LEV Assembly Specifications  ....................................................................................... 14

5. Outlines and Dimensions ........................................................................................................ 15

5.1. AHU Controller ............................................................................................................ 15
5.2. Single Valve LEV Assembly  ......................................................................................... 16

PAC-LEV24AC-1  ....................................................................................................... 16
PAC-LEV48AC-1, PAC-LEV60AC-1  ............................................................................ 16

5.3. Double Valve LEV Assembly  ........................................................................................ 17

6. Wiring Diagram  ...................................................................................................................... 18
7. Microprocessor Control  .......................................................................................................... 19

7.1. Cool Operation ............................................................................................................ 19

7.1.1. How to operate ................................................................................................. 19
7.1.2. Thermo-regulating function  ............................................................................... 21
7.1.3. Fan .................................................................................................................. 21
7.1.4. Float switch control ........................................................................................... 22

7.2. Dry Operation  ............................................................................................................. 22

7.2.1. How to operate ................................................................................................. 22
7.2.2. Thermo-regulating function  ............................................................................... 22
7.2.3. Fan .................................................................................................................. 23

7.3. Fan Operation ............................................................................................................. 23

7.3.1. How to operate ................................................................................................. 24
7.3.2. Fan .................................................................................................................. 24
7.3.3. Float switch control ........................................................................................... 24

7.4. Heat Operation  ........................................................................................................... 25

7.4.1. How to operate ................................................................................................. 25
7.4.2. Thermo-regulating function  ............................................................................... 26
7.4.3. Fan .................................................................................................................. 27
7.4.4. Float switch control ........................................................................................... 28

7.5. Auto Operation [Automatic cool / heat change over operation] ........................................ 28

7.5.1. How to operate ................................................................................................. 28
7.5.2. Initial operation mode  ....................................................................................... 29
7.5.3. Mode change  ................................................................................................... 29
7.5.4. COOL mode ..................................................................................................... 29
7.5.5. HEAT mode  ..................................................................................................... 29

7.6. Heater Control  ............................................................................................................ 30

3

© 2018 Mitsubishi Electric US, Inc.

Содержание CITY MULTI PAC-AH001-1

Страница 1: ...AHU Controller PAC AH001 1 SERVICE MANUAL ...

Страница 2: ......

Страница 3: ...2 Single Valve LEV Assembly 16 PAC LEV24AC 1 16 PAC LEV48AC 1 PAC LEV60AC 1 16 5 3 Double Valve LEV Assembly 17 6 Wiring Diagram 18 7 Microprocessor Control 19 7 1 Cool Operation 19 7 1 1 How to operate 19 7 1 2 Thermo regulating function 21 7 1 3 Fan 21 7 1 4 Float switch control 22 7 2 Dry Operation 22 7 2 1 How to operate 22 7 2 2 Thermo regulating function 22 7 2 3 Fan 23 7 3 Fan Operation 23 ...

Страница 4: ...4 Dipswitch setting 41 8 4 1 Discharge Air Control Factory Setting 41 8 4 2 Return Air Control Factory Setting 42 8 4 3 SW2 Capacity Code Setting 44 8 4 4 SW5 Power voltage Setting Factory Setting 45 8 4 5 SWA Controller Type Setting Factory Setting 45 8 4 6 SWC Function Setting Factory Setting 45 8 4 7 SW11 SW12 SW14 Address Setting Factory Setting 46 PAC AH001 1 Specifications are subject to cha...

Страница 5: ...s stated poses the risk of serious injury or death CAUTION This symbol indicates that failure to follow the instructions exactly as stated poses the risk of serious injury or damage to the unit Symbols used in the text Indicates an action that must be avoided Indicates that important instructions must be followed Indicates a part which must be grounded Indicates that caution should be taken with r...

Страница 6: ...he unit It may also be in violation of applicable laws MITSUBISHI ELECTRIC CORPORATION cannot be held responsible for malfunctions or accidents resulting from the use of the wrong type of refrigerant Ask your dealer or a qualified technician to install the unit Improper installation by the user may result in water leakage electric shock or fire Properly install the unit on a surface that can withs...

Страница 7: ...om If gaseous refrigerant leaks out and comes in contact with an open flame toxic gases will be generated Properly install the unit according to the instructions in the Installation Manual Improper installation may result in water leakage electric shock or fire Do not use the existing refrigerant piping A large amount of chlorine that may be contained in the residual refrigerant and refrigerator o...

Страница 8: ...AC 1 4 800 24 000 1 8 7 0 0 5 0 7 1 1 25 1 5 2 PAC LV48AC 1 24 000 48 000 7 0 14 1 2 25 2 5 3 4 PAC LV60AC 1 48 000 60 000 14 1 17 6 4 5 5 PAC LV96AC 1 60 000 96 000 17 6 28 1 6 8 PAC LV120AC 1 96 000 120 000 28 1 35 2 10 PAC LV96AC 1 x2 120 000 192 000 35 2 56 3 12 14 16 PAC LV120AC 1 x2 192 000 240 000 56 3 70 3 18 20 PAC AH001 1 Specifications are subject to change without notice 8 ...

Страница 9: ... Ⓔ Heat exchanger field supply Ⓕ Gas Pipe field supply Ⓖ Liquid Pipe field supply Ⓗ LEV Assembly Ⓘ Thermistor gas pipe Ⓙ Thermistor liquid pipe Ⓚ Thermistor suction air Ⓛ Thermistor discharge air 3 2 Installation Detail for Single LEV Assembly Fig 6 2 2 B A D C C E Ⓐ AHU Heat exchanger field supplied Ⓑ LEV Assembly Ⓒ Brazing Ⓓ LEV Ⓔ To Outdoor Unit PAC AH001 1 9 2018 Mitsubishi Electric US Inc ...

Страница 10: ...on with T Joints A B B E C D C F F G H G H Ⓐ To AHU Heat exchanger field supply Ⓑ LEV Assembly Ⓒ Brazing Ⓓ LEV Ⓔ To Outdoor unit Ⓕ Refrigerant pipe size ø1 2 field supply Ⓖ Distributor field supply Ⓗ Refrigerant pipe size field supply based on outdoor unit piping specification PAC AH001 1 Specifications are subject to change without notice 10 ...

Страница 11: ...il changed 1 City Multi Remote Controller Buttons Backlit LCD TEMP button MODE button ON OFF lamp ON OFF button FAN button VANE button The lamp will light up in green when turned on and blink during startup and when an error occurs Pressing this button starts and stops the operation 1 Function not available for PAC AH001 1 1 Keep the remote controller out of the direct sunlight to ensure accurate ...

Страница 12: ...n appears when Operation lock setting is effective icon appears when indoor unit functions are set up Refer to the Installation Manual Fan speed icon Vane icon icon appears when the power is on Return Air Temperature Operation modes CENTRAL icon 1 CHECK icon 2 Preset temperature 3 1 icon Appears when one of the following local operations is prohibited ON OFF operation mode preset temperature fan s...

Страница 13: ...A 3rd party controller can be installed to control the following functions of the AHU controller ON OFF Operation function Temperature set point Analog Input function The AHU controller can either be controlled by a Mitsubishi controller or a 3rd party controller it cannot be installed to be controlled by both Wiring for ON OFF Operation function Connection circuit Operation contact specifications...

Страница 14: ...tor Fuse SOC MQ4 Outdoor Units J Models PUHY P T Y JMU A BS PURY P T Y JMU A BS PUHY HP TJMU A BS K Models PUHY P T Y Z KMU A BS PURY P T Y Z KMU A BS PURY HP T Y KMU A H L Models PUHY P T Y Z LMU A BS PURY P T Y Z LMU A BS PQHY P T Y Z LMU A PQRY P T Y Z LMU A PQHY P T Y Z LMU A1 PQRY P T Y Z LMU A1 Refrigerant Type R410A Installation manual PA79D271H01 4 2 LEV Assembly Specifications Model PAC L...

Страница 15: ...s and Dimensions 5 1 AHU Controller PAC AH001 1 12 8 in 326 19 5 in 496 17 3 in 440 12 1 in 307 4 7 in 119 19 5 in 496 4 7 in 119 11 7 in 296 4 5 in 114 11 3 in 288 PAC AH001 1 15 2018 Mitsubishi Electric US Inc ...

Страница 16: ...le Valve LEV Assembly PAC LEV24AC 1 4 5 in 114 16 4 in 416 4 1 in 104 6 7 in 171 PAC LEV48AC 1 PAC LEV60AC 1 16 5 in 419 4 5 in 114 7 2 in 183 PAC AH001 1 Specifications are subject to change without notice 16 ...

Страница 17: ...5 3 Double Valve LEV Assembly PAC LEV96AC 1 PAC LEV120AC 1 23 2 in 590 5 6 in 142 6 4 in 163 9 1 in 232 4 0 in 102 PAC AH001 1 17 2018 Mitsubishi Electric US Inc ...

Страница 18: ...NPUT Fcom FH FM FL D1 D2 1 2 B1 B2 FAN SIGNAL OUTPUT DAMPER SIGNAL OUTPUT MA CONTROL ANALOG INPUT 3 4 2 5 X01 X02 X03 1 3 M NET M1 M2 POWER L1 L2 F1 10A F2 10A M TH24 TH23 TH22 TH21 TB A TB B TB C TB D TB5 TB2 CNEC2 CNXA1 CNXC1 CNXB1 CNEC1 Vi ComHI MI LO Vi Xi Xi Xi Xi Vi SWi SWi SWi CN2A CN2M CNXA2 CNXC2 CNXB2 CN51 CN52 CN20 CN4F CN44 CN22 CN30 CN60 CN7V CN32 CN3A CN27 CN24 TO OUTDOOR UNIT BC CON...

Страница 19: ...ontrol Type Type 1 For Temperature Control SWA 2 Type 2 For Capacity Control SWA 3 Control Relationship COOL Set point temperature 5 6 X Ain 40 96 F Ain Input Temperature Set point temperature 5 6 X Ain 100 32 F Ain Input Temperature Note COOL operation mode must be set using City Multi controller 2 Thermo regulating function 1 Thermo regulating function Function to prevent restarting for 3 minute...

Страница 20: ...emperature Set point temperature 5 625 X Ain 100 4 F Ain Input Temperature Input Voltage Setting Temperature Input Voltage Setting Temperature NOTE COOL operation mode must be set using City Multi controller Cooling Set point Range with 3rd Party Controller Discharge Air Control 46 4 82 4 F 8 28 C PAC AH001 1 Specifications are subject to change without notice 20 ...

Страница 21: ...o 1 8 F 1 C d Thermo OFF continues over 3 minutes 2 Anti freezing control Detected condition When the liquid pipe temp TH22 is 33 8 F or less 16 minutes after compressors start up anti freezing control starts and unit goes to thermo OFF Released condition The timer which prevents reactivating is set for 3 minutes and anti freezing control is cancelled when any one of the following conditions is sa...

Страница 22: ...City Multi Controller 1 3 rd Party Controls Type 1 1 1 Type 2 1 1 1 Dry mode only available when using City Multi Controller set to Return Air Control 1 How to operate 1 Press POWER ON OFF button 2 Press the operation MODE button to display DRY 3 Press the TEMP button to set the desired temperature Note The set temperature changes 2 F when the TEMP button is pressed one time Dry Set point Range Re...

Страница 23: ... than 64 F DRY thermo OFF 2 Frozen prevention control No control function 7 2 3 Fan 1 Indoor fan operation control depends on the compressor conditions Dry thermo Fan speed notch ON Low OFF Room temp 64 F Stop Room temp 64 F Low 7 3 Fan Operation Fan Operation Available Control Modes Control Mode Return Air Control Discharge Air Control Controller Type City Multi Controller 3rd Party Controls Type...

Страница 24: ... 1 Press POWER ON OFF button 2 Press the operation Mode button to display DRY 3 Press the Set Temperature button to set the desired tempera ture The set temperature changes 2 F when the Set Temperature button is pressed one time Dry 67 to 87 F ON OFF 15sec 15sec 15sec 1min 30sec 1min 30sec Float SW In the water In the air In the water Error postponement Drain pump abnormal PAR 21MAAU ON OFF FILTER...

Страница 25: ...96 F Ain Input Temperature Note HEAT operation mode must be set using City Multi controller Heating Set point Range with 3 rd Party Controller Discharge Air Control 46 4 82 4 F 8 28 C 2 Thermo regulating function 1 Thermo regulating function Function to prevent restarting for 3 minutes When indoor units are connected to the PUHY PURY PQHY PQRY series of outdoor units 7 4 1 How to operate 1 Using C...

Страница 26: ... Discharge air temperature TH21 Return air temperature Thermistor or remote controller To The set point temperature on the remote controller Return Air Control Discharge Air Control Thermo OFF TH21 To 0 9 F 0 5 C a or b or c a TH21 To b TH21 59 F 15 C 1 c TH24 To 5 F 9 C continues over 10 minutes Thermo ON TH21 To 0 9 F 0 5 C a b c d a TH24 To 1 8 F 1 C b TH21 57 2 F 14 C 1 c TH21 To 1 8 F 1 C d T...

Страница 27: ...ease the HEAT defrosting operation A Hot adjust mode starts B 5 minutes have passed since the condition A or the indoor liquid pipe temperature turned 95 F or more C 2 minutes have passed since the condition A Terminating the hot adjust mode 1 STAND BY will be displayed during the hot adjust mode 3 Preheating exclusion mode When the condition changes the auxiliary heater ON to OFF thermoregulating...

Страница 28: ... cool heat change over operation Auto Operation Available Control Modes Control Mode Return Air Control Discharge Air Control Controller Type City Multi Controller 3 rd Party Controls Type 1 1 Type 2 1 2 1 Return Air Control not available when operating with 3 rd Party Controls 2 Auto mode not available in Discharge Air Control with Type 2 operation using 3 rd Party Controls 1 How to operate 1 Usi...

Страница 29: ...ty Controller Discharge Air Control 46 4 82 4 F 8 28 C 7 5 2 Initial operation mode 1 HEAT Mode Room temperature Desired temperature 2 COOL Mode Room temperature Desired temperature 7 5 3 Mode change 1 HEAT Mode COOL Mode Room temperature Desired temperature 3 F continued over 3 min 2 COOL Mode HEAT Mode Room temperature Desired temperature 3 F continued over 3 min 7 5 4 COOL mode 1 Same control a...

Страница 30: ...U YKMU SW4 932 OFF TLMU YLMU SW4 932 OFF N A OFF Heater not Available ON OFF Heater Available OFF OFF ON ON Heater Available ON ONb DIP S W ON In the case of TKMU YKMU SW4 932 ON TLMU YLMU SW4 932 ON Parameters a b c d are set by maintenance tool Normal drive Defrost drive H P drive H P drive Condition of O U Outdoor temp Normal Drive OFF Heater not Available ON OFF Heater Available OFF OFF ON ON ...

Страница 31: ...5 C To 2 7 F 1 5 C ON OFF EH1 To TRA X min X min X min 5 min Table 4 Heater Operation Example Chart 1 and Table 4 show an example of heater operation Chart 1 Heater Operation Example EH2 ON OFF To 0 9 F 0 5 C To 2 7 F 1 5 C ON OFF EH1 To TRA X min X min X min 5 min Table 4 Heater Operation Example Step Condition Result To TRA 2 7 F 1 5 C AND TRA has not increased by 0 9 F 0 5 C in X min EH1 ON To ...

Страница 32: ...on Thermo ON ON Heat operation Thermo OFF ON Heat operation Thermo ON OFF The fan continues to run for 30 seconds after the humidiier stops Factory Setting max 30 ft Sequence of operation 1 The humidistat closes CNF 2 The fan starts on high 3 CN25 provides 12VDC to turn on the Humidifier do not exceed 1 Watt draw per relay 4 When the Humidistat opens the fan continues to run for 30 seconds to clea...

Страница 33: ...ration Thermo OFF OFF RC Setting Heat operation Thermo ON ON High ON OFF Heat operation Thermo OFF OFF RC Setting Heat operation Thermo ON ON Heat operation Thermo OFF ON High Heat operation Thermo ON Except for heat operation OFF RC Setting aFactory Setting RC Remote controller The fan continues to run for 30 seconds after the humidifier stops PAC AH001 1 33 2018 Mitsubishi Electric US Inc ...

Страница 34: ...to the thermistor characteristic graph below 1 Thermistor characteristic graph Low temperature thermistor Room temperature thermistor TH21 Liquid pipe thermistor TH22 Gas pipe thermistor TH23 Discharge air thermistor TH24 Thermistor R0 15 kΩ 2 9 Multiplier of B 3460 kΩ 1 0 C 32 F 15kΩ 10 C 50 F 9 6kΩ 20 C 68 F 6 3kΩ 25 C 77 F 5 2kΩ 30 C 86 F 4 3kΩ 40 C 104 F 3 0kΩ A Temperature C F B Resistance kΩ...

Страница 35: ...en Red 4 6 Black Brown Open or short 200 kΩ 10 A Brown B Red C Black D Green E Yellow F White 1 Summary of linear expansion valve LEV operation The LEV is operated by a stepping motor which operates by receiving a pulse signal from the indoor control board The LEV position changes in response to the pulse signal Indoor control board and LEV connection PAC AH001 1 35 2018 Mitsubishi Electric US Inc...

Страница 36: ...s 1 2 3 4 1 When the valve opens 4 3 2 1 4 When the valve position remains the same all output signals will be OFF If any output signal is missing or if the signal remains ON the motor vibrates and makes clicking noise 2 LEV operation a Close b Open c Fully open valve 1400 pulses d No of pulses e Extra tightening 80 100 pulse f Valve opening degree When the power is turned on a pulse signal of 220...

Страница 37: ...The normal range of resistance is 200 Ω 10 Replace the LEV Valve closure failure leaky valve To check the LEV on the indoor unit check the indoor unit liquid pipe temperature that appears on the operation monitor on the outdoor unit s multi control board while operating the indoor unit in question in the FAN mode and the other indoor units in the cooling mode A Thermistor TH22 VIII Troubleshooting...

Страница 38: ...re is suspected If the amount of leakage is insignificant replacement of LEV is unnecessary unless it is causing a problem Misconnections of connectors or contact failure Perform a visual check for disconnected connectors Perform a visual check of lead wire color Disconnect the connectors on the control board and perform a continuity test 8 2 Address switch setting Make sure that power to the unit...

Страница 39: ...efer to the section on address setting in the outdoor unit installation manual 2 Address is set with a combination of SW12 10 s digit and SW11 1 s digit To set the address to 3 set SW12 to 0 and SW11 to 3 To set the address to 25 set SW 12 to 2 and SW 11 to 5 PAC AH001 1 39 2018 Mitsubishi Electric US Inc ...

Страница 40: ...input CN32 Remote signal input CN3A For MA remote controller cable connection 10 13 VDC Between 1 and 3 CN30 Error signal input CN52 Connect to indoor power board CN51 To fan signal relay CNXB2 To fan signal relay CN41 No function CN44 Thermistor liquid gas temperature CN20 Thermistor Inlet air temperature CN22 Thermistor Outlet air temperature CN4F Float switch input CN24 1 1st heater control CN2...

Страница 41: ...e made while the unit is stopped There is no need to power cycle the unit 2 SW3 Function Setting Switch Position Function Switch Setting ON OFF 1 Heat Pump or Cooling Only Cooling Only Heat Pump 2 Not Available N A N A 3 Not Available N A N A 4 Fan Operation During Defrost ON During Defrost OFF During Defrost 5 Not Available N A N A 6 Capacity Code Up Capacity Code Up Capacity Code not Up 7 Not Av...

Страница 42: ...N OFF 1 Return Air Sensing Location Remote Controller TH21 2 Filter clogging detection Available Unavailable 3 Filter Life 2500 hours 100 hours 4 Outdoor air intake Enabled Disabled 5 Remote display Thermostat ON signal Fan output 6 Humidifier Operation During heating mode During heating operation 7 Fan Speed Low Stop 8 Fan speed at heating Thermo OFF Preset fan speed Follows the setting of SW1 7 ...

Страница 43: ...led Enabled 9 Not Available N A N A 10 Not Available N A N A Factory Setting in Gray Dip switch settings must be made while the unit is stopped 3 SW4 Function Setting Switch Position Function Switch Setting ON OFF 1 Model Code Not Available N A N A 2 N A N A 3 N A N A 4 N A N A 5 N A N A 6 Not Available N A N A 7 Control Method Selection Discharge Air Control Return Air Control 8 9 Not Available N...

Страница 44: ...000 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 5 ON ON OFF OFF 10 10 10 10 10 10 10 10 10 10 5 0 54 000 60 000 Ton 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 0 5 ON ON OFF OFF 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 0 7 ON ON OFF OFF 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 1 ON ON OFF OFF 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 1 25 ON ON OFF OFF 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 1 5 ON ON OFF OFF 1 2 3 4 5 6 1 2 3 4 5 6 7 8 9 2 ON ON OFF OFF 1 2 3 4 5 6 1...

Страница 45: ...tage selection 240V 230V 220V 208V Factory Setting in Gray Dipswitch settings must be operated with the main power turned OFF When the power supply is 2230 volts set SW5 to 240V side When the power supply is 208 volts set SW5 to 220V side Switch Position Function Switch Setting ON 1 City Multi Controller 1 2 3rd Party Controller Type1 2 3 3rd Party Controller Type2 3 Factory Setting in Gray Dip sw...

Страница 46: ...e the unit is stopped and the remote controller is stopped 2 SW14 Rotary switch This switch is used when the unit connected to an R2 series of outdoor unit Factory Setting Address switch settings must be made while the unit is stopped and the remote controller is stopped PAC AH001 1 Specifications are subject to change without notice 46 ...

Страница 47: ...Specifications are subject to change without notice 47 ...

Страница 48: ...er on this manual before handing it to the customer MITSUBISHI ELECTRIC US INC www mitsubishielectric usa com Toll Free 800 433 4822 MEUS DOC MD 1624 K002 Ver02 February 2018 Specifications are subject to change without notice 2018 Mitsubishi Electric US Inc ...

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