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Mitsubishi Electric City Multi PEFY-M100VMA-A, Техническое и сервисное руководство

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[ 

VIII 

 Disassembly Procedure ]

- 38 -

HWE19070

GB

7. Heat exchanger

Exercise caution when removing heavy parts.

(4) Remove the four fan case fixing screws to take the top 

half of the fan casing off. 

Fig.13

1.  Remove the drain pan according to the procedure in section 

[1]-4

.

2.  Remove the heat exchanger cover according to the proce-

dure in section 

[1]-5

-2.

3.  Removing the cover
(1) Remove the five fixing screws on the cover (Q) to remove it.

Fig.14

4.  Removing the Heat exchanger
(1) Remove the fixing screws on the heat exchanger (R) to re-

move it.

Fig.15

(Q)

(R)

HWE19070.book  Page 38  Thursday, September 12, 2019  3:46 PM

Содержание City Multi PEFY-M100VMA-A

Страница 1: ......

Страница 2: ...t be tak en to prevent the refrigerant concentration from exceeding the safety limit even if the refrigerant should leak Consult the dealer regarding the appropriate measures to prevent the safety limit from being exceeded Should the refrigerant leak and cause the safety limit to be exceeded hazards due to lack of oxygen in the room could result When moving and reinstalling the air conditioner con...

Страница 3: ...s including cigarette smoking should be kept suffi ciently far away from the site of installation repairing removing and disposal during which refrigerant can possibly be released to the sur rounding space Prior to work taking place the area around the equip ment is to be surveyed to make sure that there are no flammable hazards or ignition risks No Smoking signs shall be displayed 1 7 Ventilated ...

Страница 4: ...ice that all refrigerants are recovered safely Prior to the task being carried out an oil and refrigerant sample shall be taken in case analysis is required prior to re use of reclaimed refrigerant It is essential that electrical power is available before the task is commenced a Become familiar with the equipment and its operation b Isolate system electrically c Before attempting the procedure ens...

Страница 5: ...iv HWE19070 GB HWE19070 book Page iv Thursday September 12 2019 3 46 PM ...

Страница 6: ...stem Diagram 1 Refrigerant system diagram 22 VII Troubleshooting 1 Troubleshooting 23 1 Check methods 23 2 DC fan motor fan motor indoor control board 27 3 Address switch setting 28 4 Voltage test points on the control board 29 5 Dipswitch setting Factory setting 30 VIII Disassembly Procedure 1 Disassembly Procedure 33 1 Control box 33 2 Thermistor Intake air 34 3 Drain pump 34 4 Drainpan 35 5 The...

Страница 7: ...HWE19070 GB HWE19070 book 2 ページ ２０１９年９月１７日 火曜日 午前９時３８分 ...

Страница 8: ...FY M25VMA L 2 A 2 8 3 2 PEFY M32VMA L 2 A 3 6 4 0 PEFY M40VMA L 2 A 4 5 5 0 PEFY M50VMA L 2 A 5 6 6 3 PEFY M63VMA L 2 A 7 1 8 0 PEFY M71VMA L 2 A 8 0 9 0 PEFY M80VMA L 2 A 9 0 10 0 PEFY M100VMA L 2 A 11 2 12 5 PEFY M125VMA L 2 A 14 0 16 0 PEFY M140VMA L A 16 0 18 0 HWE19070 book Page 1 Thursday September 12 2019 3 46 PM ...

Страница 9: ...HWE19070 GB II Components and Functions 1 Components and Functions 1 Indoor Main Unit 1 In case of rear inlet 2 In case of bottom inlet Air inlet Air outlet Air outlet Air inlet HWE19070 book Page 2 Thursday September 12 2019 3 46 PM ...

Страница 10: ...inks while the remote controller is starting up or when there is an error The functions of the function buttons change depending on the screen Refer to the button function guide that appears at the bottom of the LCD for the functions they serve on a given screen When the system is centrally controlled the button function guide that corresponds to the locked button will not appear Main display Main...

Страница 11: ...er function is enabled appears when the timer is disabled by the centralized control system Appears when the Weekly timer is enabled Appears while the units are operated in the energy save mode Will not appear on some models of indoor units Appears while the outdoor units are operated in the silent mode Appears when the built in thermistor on the remote controller is activated to monitor the room ...

Страница 12: ... 21 20 25 24 Heat exchanger Cross fin Aluminium fin and copper tube Fan Type Sirocco fan x 1 Sirocco fan x 2 Airflow rate Low Mid High m3 min 6 0 7 5 8 5 7 5 9 0 10 5 10 0 12 0 14 0 External static pressure Pa 35 50 70 100 150 Motor Output kW 0 085 0 121 Air filter PP Honeycomb fabric washable Refrigerant pipe dimensions Gas Brazed connection mm in ø12 7 ø1 2 Liquid Brazed connection mm in ø6 35 ø...

Страница 13: ...luminium fin and copper tube Fan Type Sirocco fan x 2 Airflow rate Low Mid High m3 min 12 0 14 5 17 0 13 5 16 0 19 0 14 5 18 0 21 0 External static pressure Pa 35 50 70 100 150 40 50 70 100 150 Motor Output kW 0 121 Air filter PP Honeycomb fabric washable Refrigerant pipe dimensions Gas Brazed connection mm in ø12 7 ø1 2 ø15 88 ø5 8 Liquid Brazed connection mm in ø6 35 ø1 4 ø9 52 ø3 8 Drain pipe d...

Страница 14: ...anger Cross fin Aluminium fin and copper tube Fan Type Sirocco fan x 3 Airflow rate Low Mid High m3 min 23 0 28 0 32 0 28 0 34 0 37 0 29 5 35 5 40 0 External static pressure Pa 40 50 70 100 150 Motor Output kW 0 300 Air filter PP Honeycomb fabric washable Refrigerant pipe dimensions Gas Brazed connection mm in ø15 88 ø5 8 Liquid Brazed connection mm in ø9 52 ø3 8 Drain pipe dimensions mm in O D 32...

Страница 15: ...kg 27 26 30 29 Heat exchanger Cross fin Aluminium fin and copper tube Fan Type Sirocco fan x 2 Airflow rate Low Mid High m3 min 13 5 16 0 19 0 14 5 18 0 21 0 External static pressure Pa 35 50 70 100 150 40 50 70 100 150 Motor Output kW 0 121 Air filter PP Honeycomb fabric washable Refrigerant pipe dimensions Gas Brazed connection mm in ø12 7 ø1 2 Liquid Brazed connection mm in ø6 35 ø1 4 Drain pip...

Страница 16: ...00 Depth mm 732 Net weight 2 kg 42 41 Heat exchanger Cross fin Aluminium fin and copper tube Fan Type Sirocco fan x 3 Airflow rate Low Mid High m3 min 29 5 35 5 40 0 External static pressure Pa 40 50 70 100 150 Motor Output kW 0 300 Air filter PP Honeycomb fabric washable Refrigerant pipe dimensions Gas Brazed connection mm in ø12 7 ø1 2 ø15 88 ø5 8 Liquid Brazed connection mm in ø6 35 ø1 4 ø9 52 ...

Страница 17: ...1600 Depth mm 732 Net weight 2 kg 42 41 Heat exchanger Cross fin Aluminium fin and copper tube Fan Type Sirocco fan x 3 Airflow rate Low Mid High m3 min 29 5 35 5 40 0 External static pressure Pa 40 50 70 100 150 Motor Output kW 0 300 Air filter PP Honeycomb fabric washable Refrigerant pipe dimensions Gas Brazed connection mm in ø15 88 ø5 8 Liquid Brazed connection mm in ø9 52 ø3 8 Drain pipe dime...

Страница 18: ... 24L Hr Drain float switch FS Open short detection Initial contact resistance 500 mΩ or less Component Sym bol PEFY M40VMA L A PEFY M50VMA L A PEFY M63VMA L A PEFY M71VMA L A PEFY M80VMA L A Room temperature thermistor TH21 Resistance 0 C 15kΩ 10 C 9 6kΩ 20 C 6 3kΩ 25 C 5 4kΩ 30 C 4 3kΩ 40 C 3 0kΩ Liquid pipe thermistor TH22 Resistance 0 C 15kΩ 10 C 9 6kΩ 20 C 6 3kΩ 25 C 5 4kΩ 30 C 4 3kΩ 40 C 3 0k...

Страница 19: ...r Drain float switch FS Open short detection Initial contact resistance 500 mΩ or less Component Sym bol PEFY M20VMA2 A PEFY M25VMA2 A PEFY M32VMA2 A PEFY M40VMA2 A Room temperature thermistor TH21 Resistance 0 C 15kΩ 10 C 9 6kΩ 20 C 6 3kΩ 25 C 5 4kΩ 30 C 4 3kΩ 40 C 3 0kΩ Liquid pipe thermistor TH22 Resistance 0 C 15kΩ 10 C 9 6kΩ 20 C 6 3kΩ 25 C 5 4kΩ 30 C 4 3kΩ 40 C 3 0kΩ Gas pipe thermistor TH23...

Страница 20: ... Hr Drain float switch FS Open short detection Initial contact resistance 500 mΩ or less Component Sym bol PEFY M80VMA2 A PEFY M100VMA2 A PEFY M125VMA2 A Room temperature thermistor TH21 Resistance 0 C 15kΩ 10 C 9 6kΩ 20 C 6 3kΩ 25 C 5 4kΩ 30 C 4 3kΩ 40 C 3 0kΩ Liquid pipe thermistor TH22 Resistance 0 C 15kΩ 10 C 9 6kΩ 20 C 6 3kΩ 25 C 5 4kΩ 30 C 4 3kΩ 40 C 3 0kΩ Gas pipe thermistor TH23 Resistance...

Страница 21: ...1 fan PEFY M40 50 63VWA A models have 2 fans PEFY M100 125 140VMA A models have 3 fans 4 In case of the inlet duct is used remove the air filter supply with the unit then install the filter field supply at suction side ø9 52 ø12 7 ø6 35 ø15 88 1558 1358 1500 1300 7 Model A 660 800 1200 700 754 900 954 860 9 E 11 D 1060 C 1100 B 1154 PEFY M140VMA A PEFY M100 125VMA A PEFY M71 80VMA A PEFY M40 50VMA...

Страница 22: ... have 2 fans PEFY M100 125 140VMAL A models have 3 fans 4 In case of the inlet duct is used remove the air filter supply withthe unit then install the filter field supply at suction side ø9 52 ø12 7 ø6 35 ø15 88 2 Liquid pipe 1 Gas pipe 1558 1358 1500 1300 7 Model A 660 800 1200 700 754 900 954 860 9 E 11 D 1060 C 1100 B 1154 PEFY M140VMAL A PEFY M100 125VMAL A PEFY M71 80VMAL A PEFY M40 50VMAL A ...

Страница 23: ... 2 fans PEFY M20 25 32VWA2 A models have 2 fans PEFY M50 63 71 80 100 125VMA A models have 3 fans 4 In case of the inlet duct is used remove the air filter supply with the unit then install the filter field supply at suction side ø9 52 ø15 88 2 Liquid pipe 1 Gas pipe 1558 1500 Model A 1200 E 11 D 1060 C 1100 B 1154 PEFY M50VMA2 A PEFY M40VMA2 A 1600 1654 1700 1560 16 1000 F G 1058 900 954 860 9 PE...

Страница 24: ...of the motor fan drain pump heat exchanger and control box in one of the following ways Select an installation site for the indoor unit so that its maintenance access space will not be obstructed by beams or other objects 1 When a space of 300mm or more is available below the unit between the unit and the ceiling Fig 1 Create access door 1 and 2 450 450mm each as shown in Fig 2 Access door 2 is no...

Страница 25: ...he motor fan heat exchanger and control box in one of the following ways Select an installation site for the indoor unit so that its maintenance access space will not be obstructed by beams or other objects 1 When a space of 300mm or more is available below the unit between the unit and the ceiling Fig 1 Create access door 1 and 2 450 450mm each as shown in Fig 2 Access door 2 is not required if e...

Страница 26: ...maintenance inspection and replacement of the motor fan drain pump heat exchanger and control box in one of the following ways Select an installation site for the indoor unit so that its maintenance access space will not be obstructed by beams or other objects 1 When a space of 300mm or more is available below the unit between the unit and the ceiling Fig 1 Create access door 1 and 2 450 450mm eac...

Страница 27: ...2 TB5 TB15 TH21 TH22 TH23 CN2A Connector 0 10V Analog input CN32 Connector Remote switch CN41 Connector HA terminal A CN51 Connector Centrally control CN52 Connector Remote indication CN90 Connector Wireless CN105 Connector IT terminal SW1 Switch for mode selection SW2 Switch for capacity code SW3 Switch for mode selection SW14 Switch BRANCH No SW21 Switch for static pressure selection SW22 Switch...

Страница 28: ...V Analog input CN32 Connector Remote switch CN41 Connector HA terminal A CN51 Connector Centrally control CN52 Connector Remote indication CN90 Connector Wireless CN105 Connector IT terminal SW1 Switch for mode selection SW2 Switch for capacity code SW3 Switch for mode selection SW14 Switch BRANCH No SW21 Switch for static pressure selection SW22 Switch Wireless pair No SWE Connector emergency ope...

Страница 29: ...tions E Strainer 100 mesh F Linear expansion valve G Liquid pipe thermistor TH22 H Heat exchanger I Room temperature thermistor TH21 H I F E E C G A D B Capacity PEFY M20 25 32 40 50VMA L 2 A PEFY M63 71 80 100 125 140VMA L A PEFY M63 71 80 100 125VMA2 A Gas pipe ø12 7 1 2 ø15 88 5 8 Liquid pipe ø6 35 1 4 ø9 52 3 8 HWE19070 book Page 22 Thursday September 12 2019 3 46 PM ...

Страница 30: ...between terminals with a tester Refer to the next page for details Normal Abnormal 4 3kΩ 9 6kΩ Open or short Refer to the thermistor characteristic graph below Low temperature thermistor Room temperature thermistor TH21 Liquid pipe thermistor TH22 Gas pipe thermistor TH23 Drain sensor DS Thermistor R0 15 kΩ 3 Multiplier of B 3480 kΩ 2 0 C 15kΩ 10 C 9 6kΩ 20 C 6 3kΩ 25 C 5 2kΩ 30 C 4 3kΩ 40 C 3 0kΩ...

Страница 31: ...order When the valve closes 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 A Red G Control board C Blue H Connection CN60 D Orange I Drive circuit E Yellow J Linear expansion valve F White Phase number Output pulse 1 2 3 4 ø1 ON O...

Страница 32: ...lure on the microcomputer Disconnect the connectors on the control board and connect LEDs to test the cir cuit as shown below Pulse signals are output for 10 seconds when the main power is turned on If there are LEDs that do not light up at all or remain lit after the pulses are turned off there is a problem with the driving circuit Replace the in door control board if driving circuit failure is d...

Страница 33: ...ess it is causing a problem Misconnections of connectors or con tact 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 A LEV 1 Check if the drain float switch works properly 2 Check if the drain pump works and drains water properly in cooling operation 3 If no water drain...

Страница 34: ...and the fuse F02 Replace the indoor controller board Wiring contact check Contact of fan motor connector CNMF Replace the drain pump Is there contact failure Wiring recovery Power supply check Remove the connector CNMF Measure the voltage in the indoor controller circuit board TEST POINT VDC between 1 and 4 of the fan connector VDC 310 340 V DC TEST POINT VCC between 5 and 4 of the fan connector V...

Страница 35: ...door units to run 2 Address settings vary in different systems Refer to the section on address setting in the outdoor unit installation manual 3 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 SW22 0 1 2 3 4 5 6 7 8 9 A BCDE F 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 In...

Страница 36: ...alized control CN41 JAMA standard HA terminal A CN44 Thermistor liquid gas temperature CN4F Float switch CN20 Thermistor Inlet temperature CNMF Fan motor output 1 4 310 340 VDC 5 4 15 VDC 6 4 0 6 5 VDC 7 4 Stop 0 or 15 VDC Run 7 5 VDC 0 15 pulse 1 VFG Voltage on the side of PC352 and C084 Same with the voltage between 7 and 4 of CNMF VCC Voltage between the C084 pins 15 VDC Same with the voltage b...

Страница 37: ...w Very low 8 Fan speed at heating Thermo OFF Preset fan speed Follows the setting of SW1 7 9 Auto restart after power failure Enabled Disabled 10 Power start stop Enabled Disabled PEFY M VMA 2 A ON 1 2 3 4 5 6 7 8 9 10 PEFY M VMAL A ON 1 2 3 4 5 6 7 8 9 10 Switch position Function Switch setting ON OFF 1 Unit type Cooling only Heat pump 2 3 4 5 6 7 8 Heating 4 deg up Disabled Enabled 9 10 ON 1 2 3...

Страница 38: ...e remote controller overrides the previous setting To check the latest static pressure setting check it on the remote controller not on the switch If the static pressure setting for the duct is lower than that for the unit the fan of the unit may repeat start stop and the outdoor unit may remain in a stopped state Match the static pressure settings for the unit to that for the duct Factory setting...

Страница 39: ...ges to the dipswitches SW11 SW12 SW14 and SW15 must be made while the unit is stopped and the remote controller is OFF External static pressure SW21 1 SW21 2 SW21 5 Initial setting M20 M63VMA A 35 Pa M71 M140VMA A 40 Pa M20 M32VMA2 A 35 Pa M40 M125VMA2 A 40 Pa OFF OFF OFF only M20 M100VMA A M20 M40VMA2 A 50 Pa ON OFF OFF onlyM125 M140VMA A M50 125VMA2 A 70 Pa OFF ON ON 100 Pa OFF OFF ON 150 Pa ON ...

Страница 40: ...ly Procedure 1 Disassembly Procedure 1 Control box Exercise caution when removing heavy parts 1 Removing the control box cover 1 Remove the three fixing screws on the cover A to re move it Fig 1 Fig 2 A HWE19070 book Page 33 Thursday September 12 2019 3 46 PM ...

Страница 41: ...rding to the procedure in section 1 1 2 Remove the thermistor 1 Pull out the thermistor holder B and thermistor C on the control box Fig 3 D B C 1 Remove the control box cover according to the procedure in section 1 1 2 Remove the drain pump 1 Remove the drain pump from connector E in control box 2 Remove the cover D and the drain pump Fig 4 E HWE19070 book Page 34 Thursday September 12 2019 3 46 ...

Страница 42: ...tab on the filter and pull out the filter in the direction of the arrow 1 2 Remove the fixing screws on the bottom plate F G to remove it Fig 5 2 Removing the drainpan 1 Pull out the drain pan in the direction of the arrow 2 Fig 6 Note Drain the water out of the drain pan before removing it G F 1 1 2 HWE19070 book Page 35 Thursday September 12 2019 3 46 PM ...

Страница 43: ...rocedure in sec tion 1 4 2 Removing the Heat exchanger cover 1 Remove the three fixing screws on the heat exchanger cover H to remove it Fig 7 3 Removing the thermistor 1 Remove the thermistor J from the thermistor holder K on the copper tube Thermistor size Liquid pipe ø8mm Gas pipe ø6mm Fig 8 H HEX J K HWE19070 book Page 36 Thursday September 12 2019 3 46 PM ...

Страница 44: ...ove it in the di rection of arrow 2 Fig 10 a Tab 3 Removing the motor cable 1 Remove the motor cable threw the rubber bush 4 Removing the fan motor and the Sirocco fan 1 Loosen either of the two rubber joint N fixing screws 2 To remove the Sirocco fans b and c of PEFY M100 125 140VMA L A PEFY M100 125VMA2 A loosen only the screw d on the bearing support P and re move the other screws on it Fig 11 ...

Страница 45: ... 1 Remove the drain pan according to the procedure in section 1 4 2 Remove the heat exchanger cover according to the proce dure in section 1 5 2 3 Removing the cover 1 Remove the five fixing screws on the cover Q to remove it Fig 14 4 Removing the Heat exchanger 1 Remove the fixing screws on the heat exchanger R to re move it Fig 15 Q R HWE19070 book Page 38 Thursday September 12 2019 3 46 PM ...

Страница 46: ......

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