Mitsubishi Electric PUMY-SP112VKM-BSR2.TH Technical & Service Manual Download Page 135

Page: 135 / 166

OPERATING PROCEDURE

PHOTOS/FIGURES

1. Removing the service panel and the top panel

(1) Remove 3 service panel fixing screws (5 × 12), and

slide the hook on the right downward to remove the

service panel.

(2) Remove screws (2 for front, 3 for rear/5 × 12) of the

top panel and remove it.

Photo 1

2. Removing the fan motor (MF1)

(1) Remove the service panel. (See Photo 1)

(2) Remove the top panel. (See Photo 1)

(3) Remove 4 fan grille fixing screws (5 × 12) to detach

the fan grille. (See Photo 1)

(4) Remove a nut (for right handed screw of M6) to detach

the propeller. (See Photo 2)

(5) Disconnect the connector CNF1 on the multi controller

circuit board in the electrical parts box. (See Photo 4)

(6) Loosen a clamp on the side of the motor support. (See

Photo 3)

(7) Remove 4 fan motor fixing screws (5 × 20) to detach

the fan motor. (See Photo 3)

Note: Tighten the propeller fan with a torque of 5.7

0.3 N·m.

Photo 2

Photo 3

3. Removing the electrical parts box

(1) Remove the service panel. (See Photo 1)

(2) Remove the top panel. (See Photo 1)

(3) Disconnect the connecting wire from terminal block.

(See Photo 5 for VKM type, or Photo 7 for YKM type)

(4) Disconnect the connector CNF1, 4-way valve coil,

LEV-A and LEV-B on the multi controller circuit board.

• CNF1: Fan motor

• LEV-A: LEV

• LEV-B: LEV

• 21S4: 4-way valve coil

• 63HS: Pressure sensor

• SV1: Solenoid valve coil

• 63H: Pressure switch

• 63LS: Pressure sensor

(5) Disconnect th

e pipe-side connections of the following parts:

• Thermistor <HIC> (TH2)

• Thermistor <Compressor> (TH4)

• Thermistor <Liquid> (TH3)

• Thermistor <Suction> (TH6)

• Thermistor <Ambient> (TH7)

(6)

Remove the comp felt (top).

(7) Remove a nut from the terminal cover to remove the

cover, and disconnect the compressor lead wire.

(See Photo11)

(8) Remove 2 electrical parts box fixing screws (4 × 10),

and detach the electrical parts box by pulling upward.

The electrical parts box is fixed with 2 hooks on the left

and 1 hook on the right.

Photo 4

: Indicates the visible parts in the photos/figures.

: Indicates the invisible parts in the photos/figures.

Top panel fixing screws

Top panel

Service

panel

fixing

screws

Service

panel

Slide

Cover panel

fixing

screws

Grille fixing

screws

Fan motor

fixing screws

Fan motor

Fan motor fixing

screws

Clamp

Electrical parts box

Multi controller circuit

board (MULTI.B.)

Terminal

block

Side panel

Valve bed

Compressor

(MC)

Compressor

lead wire

Electrical

parts box

fixing screws

Valve bed

fixing screws

Cover panel

(rear)

Cover panel (front)

135

OCH668G

11 DISASSEMBLY PROCEDURE

Propeller

Nut

Front panel

Front panel fixing screws

Summary of Contents for PUMY-SP112VKM-BSR2.TH

Page 1: ...MY SP140YKM ERR2 TH PUMY SP112VKM TH BS PUMY SP112VKMR1 TH BS PUMY SP112VKM BSR2 TH PUMY SP112VKM ET BSR2 TH PUMY SP112VKM ER BSR2 TH PUMY SP125VKM TH BS PUMY SP125VKMR1 TH BS PUMY SP125VKM BSR2 TH PUMY SP125VKM ET BSR2 TH PUMY SP125VKM ER BSR2 TH PUMY SP140VKM TH BS PUMY SP140VKMR1 TH BS PUMY SP140VKM BSR2 TH PUMY SP140VKM ET BSR2 TH PUMY SP140VKM ER BSR2 TH PUMY SP112YKM TH BS PUMY SP112YKMR1 TH...

Page 2: ...SP125YKM BSR2 TH PUMY SP140YKMR1 TH BS PUMY SP140YKM BSR2 TH Some connectable indoor units have been added PUMY SP112VKM TH PUMY SP112VKMR1 TH PUMY SP125VKM TH PUMY SP125VKMR1 TH PUMY SP140VKM TH PUMY SP140VKMR1 TH PUMY SP112YKM TH PUMY SP112YKMR1 TH PUMY SP125YKM TH PUMY SP125YKMR1 TH PUMY SP140YKM TH PUMY SP140YKMR1 TH PUMY SP112VKM TH BS PUMY SP112VKMR1 TH BS PUMY SP125VKM TH BS PUMY SP125VKMR1...

Page 3: ...e rant piping is clean and it has no contaminants such as sulfur oxides dirt shaving particles etc which are hazard to refrigerant cycle In addition use pipes with specified thickness Contamination inside refrigerant piping can cause deterio ration of refrigerant oil etc Store the piping indoors and keep both ends of the piping sealed until just before brazing Leave elbow joints etc in their packa...

Page 4: ... sure to install the unit in a location where the salt will be washed away by rainwater If a sunshade is installed rainwater may not clean the panel 3 To ensure that water does not collect in the base of the outdoor unit make sure that the base is level not at angle Water collecting in the base of the outdoor unit could cause rust 4 If the unit is installed in a coastal area clean the unit with wa...

Page 5: ...7 19 4 5 8 15 88 29 0 27 0 3 4 19 05 23 3 3 4 19 05 36 0 3 Tools for R410A The following table shows whether conventional tools can be used or not Tools and materials Use R410A tools Can R22 tools be used Can R407C tools be used Gauge manifold Air purge refrigerant charge and operation check Tool exclusive for R410A Charge hose Tool exclusive for R410A Gas leak detector Gas leak check Tool for HFC...

Page 6: ...2 G E CMY Y64 G E CMY Y68 G E M series remote controller Model Capacity Cassette Ceiling Ceiling concealed Wall Mounted Ceiling Suspended Floor standing Ceiling concealed Lossnay CONNECTION KIT 2 by 2 4 way flow 2 way flow 1 way flow Exposed Concealed Fresh air 3 Built in PAC LV11M J PLFY P PLFY P PLFY EP 2 PLFY M PLFY P PMFY P PEFY P PEFY M PKFY P PCFY P PFFY P PFFY P PEFY P PDFY P GUF 4 10 10VLM...

Page 7: ...nch box that can be connected Number of units 1 to 2 units Model Capacity kW type Wall Mounted 1 way ceiling cassette 4 way ceiling cassette 2 by 2 type Standard MSZ FH MSZ LN MSZ GE MSZ GF MSZ EF MSZ SF MSZ AP 1 MLZ KA MLZ KP 1 SLZ KF SLZ M 1 PLA RP PLA M 15 15VA 15VF 15VG K 15FA 18 18VE 18VG K 20 20VA 20VF 20VG K 22 22VA 22VE 22VG K 25 25VE2 25VG 25VG2 25VA 25VE 25VG K 25VE3 25VG K 25VA 25VF 25V...

Page 8: ...ntroller M series remote controller M series S series P series indoor units 1 MA remote controller 1 Refer to 2 1 SYSTEM CONSTRUCTION or 2 2 SYSTEM CONSTRUCTION BRANCH BOX SYSTEM for more detail PAC MK3 BC 3 branches MAX 3 units 2 3 SYSTEM CONSTRUCTION MIXED SYSTEM Outdoor unit 4 5HP 5HP 6HP SP112 SP125 SP140 Applicable indoor unit Capacity CITY MULTI indoor unit Type 10 to Type 140 Via branch box...

Page 9: ...C Outdoor intake air temperature D B 5 to 52 C 1 W B 20 to 15 C Notes D B Dry Bulb Temperature W B Wet Bulb Temperature 1 10 to 52 C D B When connecting PKFY P15 P20 P25VBM PKFY P10 15 20 25 32VLM PFFY P20 25 32VKM PFFY P20 25 32VCM PFFY P20 25 32VLE R M M and M series S series and P series type indoor unit When connecting fresh air type indoor unit PEFY P VMH E F Cooling Heating Indoor and Outdoo...

Page 10: ...ity control Cooling 26 to 100 Heating 20 to 100 Cooling 24 to 100 Heating 18 to 100 Cooling 21 to 100 Heating 17 to 100 Motor output kW 3 1 3 5 3 7 Case heater kW 0 Lubricant FV50S 1 4 litter External finish Galvanized Steel Sheet Munsell No 3Y 7 8 1 1 External dimension H W D mm 981 1 050 330 40 inch 38 5 8 41 3 8 13 1 37 64 Protection devices High pressure protection High pressure Switch Inverte...

Page 11: ...g 26 to 100 Heating 20 to 100 Cooling 24 to 100 Heating 18 to 100 Cooling 21 to 100 Heating 17 to 100 Motor output kW 3 1 3 5 3 7 Case heater kW 0 Lubricant FV50S 1 4 litter External finish Galvanized Steel Sheet Munsell No 3Y 7 8 1 1 External dimension H W D mm 981 1 050 330 40 inch 38 5 8 41 3 8 13 1 37 64 Protection devices High pressure protection High pressure Switch Inverter circuit COMP FAN...

Page 12: ...System Capacity Comparison of Capacity between Total Indoor Units Capacity CTi and Total Outdoor Unit Capacity CTo CTi 13 3 CTo 10 8 thus select CTo CTx CTo 10 8 kW 7 Comparison with Essential Load Against the essential load 10 6kW the maximum system capacity is 10 8 kW Proper outdoor units have been selected 8 Calculation of Maximum Indoor Unit Capacity of Each Room CTx CTo thus calculate by the ...

Page 13: ...ts have been selected 8 Calculation of Maximum Indoor Unit Capacity of Each Room CTx CTi thus calculate by the calculation below Room1 Indoor Unit Rating Indoor Design Temperature Correction 6 3 0 88 5 5 kW OK fulfills the load 5 4 kW Room2 Indoor Unit Rating Indoor Design Temperature Correction 9 0 0 88 7 9 kW OK fulfills the load 7 8 kW Completed selecting units since the selected units fulfill ...

Page 14: ...5 0 5 10 15 20 25 30 35 40 45 50 0 2 0 3 0 4 0 5 0 6 0 7 0 8 0 9 1 0 1 1 1 2 1 3 19 C W B The outdoor units have varied capacity at different designing temperature Using the nominal cooling capacity value and the ratio below the capacity can be observed at various temperature Figure 7 Indoor unit temperature correction To be used to correct indoor unit capacity only Figure 8 Outdoor unit temperatu...

Page 15: ...R BS PUMY SP112YKM BS PUMY SP112YKM ET BS PUMY SP112YKM ER BS PUMY SP125YKM BS PUMY SP125YKM ET BS PUMY SP125YKM ER BS Ratio of power input Outdoor Temperature C D B Indoor Temperature 15 10 5 0 5 10 15 20 25 30 35 40 45 50 55 0 0 0 2 0 4 0 6 0 8 1 0 1 2 16 C W B 18 C W B 19 C W B 24 C W B 22 C W B 20 C W B PUMY SP140VKM BS PUMY SP140VKM ET BS PUMY SP140VKM ER BS PUMY SP140YKM BS PUMY SP140YKM ET ...

Page 16: ...acity Indoor Temperature CD B Ratio of heating capacity Outdoor Temperature C W B 20 C D B 20 0 15 0 10 0 5 0 0 0 5 0 10 0 15 0 0 5 0 6 0 7 0 8 0 9 1 0 1 1 1 2 Ratio of power input Outdoor Temperature C W B Indoor Temperature 20 15 10 5 0 5 10 15 0 2 0 4 0 6 0 8 1 0 1 2 25 C D B 15 C D B 20 C D B 27 C D B 1 4 Figure 10 Indoor unit temperature correction To be used to correct indoor unit capacity o...

Page 17: ... 2 Piping Main pipe m 5 5 5 Branch pipe 2 5 2 5 2 5 Total pipe length 15 15 15 Fan speed Hi Hi Hi Amount of refrigerant kg 6 5 6 5 6 5 Outdoor unit Electric current A 11 65 3 99 11 28 3 86 14 74 5 05 14 78 5 06 17 95 6 15 15 74 5 39 Voltage V 230 400 230 400 230 400 230 400 230 400 230 400 Compressor frequency Hz 57 74 65 84 73 88 LEV opening Indoor unit Pulse 226 396 264 335 262 358 Pressure High...

Page 18: ...5 0 20 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 1 0 2 0 3 0 4 0 5 0 6 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 0 5 1 0 1 5 2 0 2 5 3 0 3 5 V Type 220V 230V 240V 380V 400V 415V Y Type 4 4 1 PUMY SP112VKM BS PUMY SP112YKM BS Cooling PUMY SP112VKM ET BS PUMY SP112YKM ET BS PUMY SP112VKM ER BS PUMY SP112YKM ER BS Before calculating the sum of total capacity of indoor units please convert...

Page 19: ...10 0 12 0 14 0 16 0 18 0 20 0 0 5 0 10 0 15 0 20 0 Y Type Current A Current A Input kW V Type 220V 230V 240V 380V 400V 415V 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 Capacity kW Total capacity of indoor units kW 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 0 5 1 0 1 5 2 0 2 5 3 0 3 5 Total capacity of indoor units kW Total capacity of indoor units kW Total ...

Page 20: ... 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 0 0 5 0 10 0 15 0 20 0 Current A Capacity kW Total capacity of indoor units kW Total capacity of indoor units kW Total capacity of indoor units kW Total capacity of indoor units kW Current A Input kW 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 1 0 2 0 3 0 4 0 5 0 6 0 7 ...

Page 21: ... 415V 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 Capacity kW Total capacity of indoor units kW 2 4 6 8 10 12 14 16 18 20 0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 Total capacity of indoor units kW Total capacity of indoor units kW 4 4 4 PUMY SP125VKM BS PUMY SP125YKM BS Heating PUMY SP125VKM ET BS PUMY SP125YKM ET BS PUMY SP125VKM ER BS PUMY SP125YKM ER BS ...

Page 22: ...14 0 16 0 18 0 20 0 22 0 0 0 5 0 10 0 15 0 20 0 25 0 Current A Capacity kW Total capacity of indoor units kW Total capacity of indoor units kW Total capacity of indoor units kW Total capacity of indoor units kW Current A Input kW 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 1 0 2 0 3 0 4 0 5 0 6 ...

Page 23: ...15V V Type 220V 230V 240V 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 Capacity kW Total capacity of indoor units kW 2 0 4 0 6 0 8 0 10 0 12 0 14 0 16 0 18 0 20 0 22 0 0 5 1 0 1 5 2 0 2 5 3 0 3 5 4 0 4 5 5 0 Total capacity of indoor units kW Total capacity of indoor units kW 4 4 6 PUMY SP140VKM BS PUMY SP140YKM BS Heating PUMY SP140VKM ET BS PUMY...

Page 24: ...h from Figure 15 Then multiply by the heating capacity from Figure 10 and 11 in 4 2 CORRECTION BY TEMPERATURE to obtain the actual capacity 1 Capacity Correction Curve 0 20 40 60 80 0 50 0 55 0 60 0 65 0 70 0 75 0 80 0 85 0 90 0 95 1 00 9 4 6 3 12 5 16 3 Capacity ratio Piping equivalent length m Total capacity of indoor unit 0 20 40 60 80 0 50 0 55 0 60 0 65 0 70 0 75 0 80 0 85 0 90 0 95 1 00 10 5...

Page 25: ...apacity Correction factor diagram 0 20 40 60 80 0 50 0 55 0 60 0 65 0 70 0 75 0 80 0 85 0 90 0 95 1 00 Capacity ratio Piping equivalent length m Outdoor Intake temperature C W B 6 4 2 0 2 4 6 8 10 15 20 Correction factor 1 00 0 98 0 89 0 88 0 89 0 90 0 95 0 95 0 95 0 95 0 95 Figure 14 Cooling PUMY SP140VKM BS PUMY SP140VKM ET BS PUMY SP140VKM ER BS PUMY SP140YKM BS PUMY SP140YKM ET BS PUMY SP140YK...

Page 26: ...50 NC 40 NC 30 NC 20 NC 70 COOLING MODE SILENT Cooling 53 SPL dB 50 47 43 LINE SUPER SILENT 1 Cooling SUPER SILENT 2 Cooling HEATING 56 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 µbar BAND CENTER FREQUENCIES Hz NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 COOLING MODE SILENT Cooling 54 S...

Page 27: ...27 OCH668G 5 OUTLINES AND DIMENSIONS Unit mm 1 1 1 ...

Page 28: ...for Option CN3N Connector Connection for Option CN51 Relay M NET P B M NET Power Circuit Board TB1 Connector Indoor Outdoor Branch Box Outdoor Transmission Line Connection Terminal Electrical Parts Box Connection Terminal Electrical Parts Box RD RD YE YE P B M1 M2 S TB3 TO INDOOR UNIT OR BRANCH BOX CONNECTING WIRES 30VDC Non polar FOR CENTRALIZED CONTROL 30VDC Non polar M1 M2 S TB7 2 2 CN51 WH SW6...

Page 29: ...Line EI E2 E3 N F Connection Terminal L1 L2 L3 Power Supply Noise Filter Circuit Board LI1 LI2 LI3 NI Connection Terminal L1 L2 L3 Power Supply LO1 LO2 LO3 SYMBOL NAME LEV A LEV B Linear Expansion Valve RS Rush Current Protect Resistor ACL4 Reactor DCL P B Power Circuit Board Connection Terminal U V W Phase TB U V W MULTI B Switch Display Selection SW1 Switch Function Selection SW2 Switch Test Run...

Page 30: ... 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 Address SW 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 Address SW SW1 ON 1 2 3 4 5 6 SW1 ON 1 2 3 4 5 6 CITY MULTI Indoor unit 009 CITY MULTI Indoor unit 010 MA remote controller CITY MULTI 001 050 For centralized management 061 Outdoor unit For Branch box CITY MULTI indoor unit 0 1 2 3 4 5 6 7 8 9 Address SW CITY MULTI Indoor unit 011 CITY MULTI Indoor unit 012 CI...

Page 31: ...s of flared connector Capillary tube for oil separator ø2 5 o ø0 6 o L1000 Capacity Item Liquid piping Gas piping P10 P15 P20 P25 P32 P40 P50 P63 P80 P100 P125 P140 SP112 SP125 SP140 CITY MULTI indoor unit Outdoor unit ø9 52 3 8 ø9 52 3 8 ø12 7 1 2 ø15 88 5 8 ø15 88 5 8 Unit mm in The farthest piping length from the first joint 30 m ø6 35 1 4 The farthest piping length from the first joint 30 m ø9...

Page 32: ...e temperature thermistor liquid TH2 or RT13 Strainer Indoor units Branch box Outdoor unit Thermistor TH A E Gas pipe temperature LEV A E Linear expansion valve Room temperature thermistor TH1 or RT11 E D C B A Note A maximum of 2 branch boxes can be connected to 1 outdoor unit PUMY SP VKM TH BS PUMY SP YKM TH BS cannot connect 32 33 52 53 series PUMY SP VKMR1 R2 TH BS PUMY SP YKMR1 R2 TH BS cannot...

Page 33: ...r unit 2 Valve size of branch box for indoor unit ø6 35 mm ø9 52 mm ø12 7 mm ø15 88 mm ø19 05 mm Conversion formula 1 4 inch 3 8 inch 1 2 inch 5 8 inch 3 4 inch Different diameter joint optional parts Fig 7 1 MAC A454JP E MAC A455JP E MAC A456JP E PAC 493PI PAC SG76RJ E ø9 52 ø12 7 ø12 7 ø9 52 ø12 7 ø15 88 ø6 35 ø9 52 ø9 52 ø15 88 ø9 52 ø12 7 ø12 7 ø6 35 ø9 52 ø12 7 ø9 52 ø15 88 ø9 52 ø15 88 Conne...

Page 34: ...M2 S 1 2 M1M2 S A B A B A B A B M NET RC M NET RC M NET RC M NET RC Using 2 M NET remote controllers for each CITY MULTI series indoor unit a Same as above 1 a b Same as above 1 b c Set address switch on outdoor unit P C B as shown below Unit Range Setting Method CITY MULTI series indoor unit M IC 001 to 050 Outdoor unit OC 051 to 100 Use the smallest address of all the indoor units plus 50 Main M...

Page 35: ...M1M2 S A B M IC Same as above Use the indoor unit M IC address plus 150 as the sub remote controller address In this case it should be 152 3 or more remote controllers RC cannot be connected to 1 indoor unit Same as above The remote controller address is the indoor unit main address plus 100 In this case it should be 101 Name Symbol Maximum units for connection Outdoor unit OC M NET control Indoor...

Page 36: ...or unit M IC that has the most recent address within the same group to the terminal block on the M NET remote controller M NET RC d Connect together terminals M1 M2 and terminal S on the terminal block for centralized control TB7 for the outdoor unit OC e DO NOT change the jumper connector CN41 on outdoor multi controller circuit board f The earth processing of S terminal for the centralized contr...

Page 37: ...1 TB5 03 M IC TB5 02 TB5 04 M IC TB5 05 TB5 07 M IC TB5 06 101 105 104 155 OC 53 OC Power Supply Unit A Group B Group C Group D Shielded Wire E Sub M NET Remote Controller Address example TB7 TB3 M1M2 S TB7 M1M2 S M1M2 S TB3 M1M2 S M1M2 S M1M2 S M1M2 S M1M2 S M1M2 S M1M2 S M1M2 S M1M2 S A B A B A B A B M1M2 S System controller NO NO M IC M IC M IC M NET RC M NET RC M NET RC Never connect together ...

Page 38: ...using 2 remote controllers connect terminals 1 and 2 on transmission cable terminal block TB15 for each indoor unit with the terminal block for 2 MA remote controllers Set either one of the MA remote controllers to sub remote controller Refer to the installation manual of MA remote con troller a The same as above 1 a b The same as above 1 b c Connect terminals 1 and 2 on transmission cable termina...

Page 39: ...door unit of the same group 3 MA remote controllers or more cannot be connected with the CITY MULTI series indoor unit of the same group The second MA remote controller is connected with the terminal block TB15 for the MA remote controller of the same CITY MULTI series indoor unit M IC as the first MA remote control NO MA RC 00 M IC 00 OC MA RC 00 M IC TB5 1 2 TB15 A B M1M2 TB3 S TB7 TB5 TB15 M1M2...

Page 40: ...h g Set the address setting switch as follows h The group setting operations among the multiple CITY MULTI series indoor units is done by the M NET remote con troller M NET RC after the electrical power has been turned on Unit Range Setting Method M IC Main 01 to 50 Use the smallest address within the same group of indoor units M IC Sub 01 to 50 Use an address other than the M IC Main in the same ...

Page 41: ...4 and L1 L2 L5 L6 500 m 1 25 E more Longest transmission cable length M NET cable L1 and L3 L4 and L2 L5 and L6 200 m 1 25 E or more MA Remote controller cable length m1 and m1 m2 m3 and m1 m2 m3 m4 200 m 0 3 to 1 25 E A Group B Group C Group D Shielded Wire E Sub MA Remote Controller Address example A B C E M IC 51 TB5 TB15 TB15 TB15 TB15 MA RC 01 M IC TB5 03 M IC TB5 02 M IC TB5 04 M IC 05 M IC ...

Page 42: ...ower supply unit to the earth g Set the address setting switch as follows Unit Range Setting Method A IC 01 to 50 According to the set address of connected Branch Box set the A IC addresses sequentially by SW1 on Branch Box For example when setting the Branch Box address to 01 A IC addresses set 02 03 04 and 05 Branch Box 01 to 50 Use a number within the range 1 50 but it should not make the highe...

Page 43: ...M2 TB3A A IC 01 02 03 04 MA RC WL RC WL RC WL RC M NET RC 101 05 06 07 08 S1 S2 S3 TB S1 S2 TB5 TB15 1 2 A B A B A B A A B B 1 2 1 2 1 2 1 2 S3 TB S1 S2 S3 TB S1 S2 S3 TB S1 S2 S3 TB S1 S2 S3 TB S1 S2 S3 TB S1 S2 S3 TB S1 S2 S3 TB3B S1 S2 S3 TB3C S1 S2 S3 TB3D S1 S2 S3 TB3E S1 S2 S3 TB3A S1 S2 S3 TB3B S1 S2 S3 TB3C S1 S2 S3 M1 M2 S TB5 M1 M2 S TB5 L 01 06 2 Branch Box A A Branch Box A MA RC MA RC ...

Page 44: ... the power supply unit to the earth g Set the address setting switch as follows Unit Range Setting Method M IC 01 to 50 A IC 01 to 50 According to the set address of connected Branch Box set the A IC addresses sequentially by SW1 SW11 SW12 on Branch Box For example when the Branch Box address is set to 01 set the A IC addresses to 01 02 03 04 and 05 Branch Box 01 to 50 Use a number within the rang...

Page 45: ...WL RC WL RC 05 A IC 06 A IC 07 A IC 08 S1 S2 S3 TB S1 S2 TB5 TB15 1 2 A B A B A B A B 1 2 1 2 1 2 1 2 MA RC A B 1 2 S3 TB S1 S2 S3 TB S1 S2 S3 TB S1 S2 S3 TB S1 S2 S3 TB S1 S2 S3 TB S1 S2 S3 TB S1 S2 S3 TB3B S1 S2 S3 TB3C S1 S2 S3 TB3D S1 S2 S3 TB3E S1 S2 S3 TB3A S1 S2 S3 TB3B S1 S2 S3 TB3C S1 S2 S3 M1 M2 S TB5 M1 M2 S TB5 L2 A A A M IC 09 M IC 10 TB5 M1 M2 1 2 1 2 S TB5 M1 M2 S L3 L4 Power Supply...

Page 46: ...le with the tester The resistance should be over 1 0 M Do not proceed inspection if the resistance is less than 1 0 M Inspect between the outdoor unit power supply terminal block and ground first metallic parts like refrigerant pipes or the electrical box next then inspect all electrical wiring of outdoor unit indoor unit and all linked equipment 3 Before operation a Turn the power supply switch o...

Page 47: ...e 4500 U3 5101 Air inlet thermistor TH21 open short Compressor temperature thermistor TH4 open short Check delay code 1202 U4 5102 Liquid pipe temperature thermistor TH22 open short Suction pipe temperature thermistor TH6 open short Check delay code 1211 U4 5103 Gas pipe temperature thermistor TH23 open short U4 5105 Outdoor liquid pipe temperature thermistor TH3 open short Check delay code 1205 U...

Page 48: ...ure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy No Yes No Yes Are they connected normally Are they connected normally Check the connection of the communication line CN2 and CN4 between the outdoor controller board and power board Connect the wiring properly Replace them in the case of breakage Connect the CN2 and CN4 properly Replace th...

Page 49: ... compressor while indoor unit is OFF thermo OFF Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 1102 U2 Compressor temperature trouble Yes Yes No Yes Yes No No No Is 5101 displayed when restarted Is the outdoor stop valve liquid gas fully open Is there refrigerant leak Is there any abnormality on connectors wi...

Page 50: ... value Is it free from any trace of over heating or burning Is the resistance detected Is the resistance detected Check the voltage and appearance of the outdoor multi controller circuit board Disconnect the thermistor wiring to check the resistance Disconnect the indoor LEV wiring and check the resistance Replace the outdoor multi controller circuit board Replace the thermistor Replace the indoor...

Page 51: ...low clogged filter or dirt on indoor unit 11 Malfunction or locked indoor fan motor 12 Decreased airflow caused by defective inspection of outdoor temperature thermistor It detects lower temperature than actual temperature 13 Indoor LEV performance failure 14 Malfunction of fan driving circuit 15 SV1 performance failure 16 Defective High pressure sensor 17 Defective High pressure sensor input circ...

Page 52: ... filter Clogged filter No clog Continued from the previous page Is there dirt on the indoor heat exchanger Is the outdoor unit short cycled Is there dirt on the outdoor heat exchanger Are the pipes clogged or broken Wash the indoor heat exchanger Resolve the short cycle Wash the outdoor heat exchanger Check and repair piping dirty dirty short cycled no dirt no dirt no short cycle Continue to the n...

Page 53: ...or burning Replace the indoor controller board Check the voltage and appearance of the indoor controller board Check the resistance of SV1 Chart 3 of 4 For the voltage refer to 8 6 HOW TO CHECK THE COMPONENTS No No Yes Yes Yes Continued from the previous page Is the resistance detected Is the resistance detected Replace the TH7 Replace the indoor LEV Disconnect the indoor LEV wiring to check the r...

Page 54: ... Yes Continued from the previous page Is the voltage detected Replace the SV1 Replace the 63HS Replace the outdoor multi controller circuit board Is the connector for outdoor multi controller circuit board 63H disconnected or loose Reconnect the connector or connect it tightly Check the 63HS voltage Is the resistance detected Yes No 54 OCH668G For the voltage refer to 8 6 HOW TO CHECK THE COMPONEN...

Page 55: ... holder of TH4 3 Disconnection of LEV coil 4 Disconnection of LEV connector 5 LEV performance failure Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Chart 1 of 2 No Yes No Yes No Yes Is the TH4 wiring disconnected Is the resistance normal Is there any abnormality such as half disconnection or breakage Connect...

Page 56: ...r to 8 6 HOW TO CHECK THE COMPONENTS Is the resistance detected Replace the indoor LEV No No Yes Yes No Yes Continued from the previous page Is the voltage normal Is it free from any trace of over heating or burning Is the voltage detected Replace the indoor controller board Replace the 63HS Replace the outdoor multi controller circuit board Check the voltage and appearance of the indoor controlle...

Page 57: ...fective outdoor multi controller circuit board 4 Indoor LEV performance failure 5 Gas leakage or shortage 6 Defective 63HS TH3 Thermistor Outdoor liquid pipe TH7 Thermistor Ambient LEV Linear expansion valve 63HS High pressure sensor Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Chart 1 of 2 Yes No No No No ...

Page 58: ... the previous page Is the voltage detected Is the voltage normal value Is it free from any trace of over heating or burning Is the resistance detected Replace the outdoor multi controller circuit board Replace the 63HS Replace the indoor LEV Replace the indoor controller board Check the 63HS voltage Check the voltage and appearance of the outdoor multi controller circuit board Disconnect the indoo...

Page 59: ... 2 Malfunction of outdoor LEV LEV A blockage TH21 Indoor intake temperature thermistor RT11 or TH1 TH22 Indoor liquid pipe temperature thermistor RT13 or TH2 TH23 Indoor gas pipe temperature thermistor TH A to E LEV Linear expansion valve Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy v No Yes No Yes Is the o...

Page 60: ...V in branch box or indoor unit Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 1503 P6 Freeze protection of branch box or indoor unit No Yes Connect the piping and wiring to the same port No Is the resistance detected Connect the LEV wiring to the intended port properly Disconnect the LEV wiring of branch box ...

Page 61: ...ature thermistor RT11 or TH1 TH22 Indoor liquid pipe temperature thermistor RT13 or TH2 TH23 Indoor gas pipe temperature thermistor TH A to E Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 1508 EF Yes No No No Yes Yes Is the connector for outdoor multi controller circuit board or 4 way valve coil disconnected...

Page 62: ... boards Diagnosis Remedy 4100 UF Compressor current interruption Locked compressor Chart 1 of 2 Yes Yes Yes No No No Is the stop valve liquid gas fully open Is the power supply voltage normal Are they set properly Open the stop valve liquid gas fully Check the looseness disconnection or breakage of compressor wiring Ensure power supply from the facility Check for power supply open phase Set the mo...

Page 63: ...emedy Chart 2 of 2 Yes Yes No No Are they connected properly Is the compressor faultily grounded Connect the compressor wiring U V and W phase properly then turn the power back ON Replace the outdoor power circuit board Defective outdoor power circuit board Replace the compressor Defective compressor Check whether the compressor is faultily grounded or not Continued from the previous page 63 OCH66...

Page 64: ...turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 4210 UP Compressor overcurrent interruption Chart 1 of 2 Yes Yes Yes No No No Is the stop valve liquid gas fully opened Is the power supply voltage normal Are they set properly Open the stop valve liquid gas fully Check the looseness disconnection or breakage of compressor wiring Ensure power sup...

Page 65: ...hort cycled Are the voltage among the phases U V V W and W U different Does it operate normally Check the DC fan motor Remove factor s causing the short cycle Replace the compressor Replace the outdoor power circuit board Complete Check the operation of indoor outdoor fan motors Check for indoor outdoor short cycle Disconnect the compressor wiring from the outdoor power circuit board then check th...

Page 66: ...Setting Display on LED1 2 1 2 3 4 5 6 7 8 Chart 1 of 2 No No No No No Yes Yes Yes Yes Yes Is there any abnormality on wirings Which sub code is displayed Does the DC bus voltage rise to approx 380 V at PAM driving Is there any abnormality on PAM wirings or reactor Is there any abnormality at the PAM circuit on the outdoor power circuit board Is there any abnormality at the PAM power supply circuit...

Page 67: ...ot broken Operate the unit and check if the problem occurs again Check the bus voltage read by the microprocessor with an operation of SW1 on the outdoor multi controller circuit board Check the bus voltage at the test points below on the outdoor power circuit board using a multimeter Test points CNDC 1 3 pin ON OFF 1 2 3 4 5 6 7 8 SW1 Setting Display on LED1 2 Unit 0 9999 V Check the power supply...

Page 68: ... Heat sink temperature trouble No Yes No No Yes Yes No No Yes Yes Is 5110 displayed when restarted Does the fan rotate during compressor operation Is there any obstacle which blocks an airflow around the heat sink Is there any abnormality such as disconnection looseness or breakage Is the resistance normal Refer to the diagnosis of check code 5110 Refer to the diagnosis of check code 4400 Replace ...

Page 69: ...onnectors or replacing boards Diagnosis Remedy 4250 U6 Power module trouble or Overcurrent trouble SW7 1 ON Ignore 5300 UH error Yes Yes No No Are they connected properly Is the check code 4250 still displayed Connect the compressor wiring U V and W phase properly then turn the power back ON Replace the outdoor power circuit board or the outdoor multi controller circuit board Defective outdoor pow...

Page 70: ...otor Connect the wiring connector properly Replace it in the case of breakage Replace the outdoor multi controller circuit board Replace the defective fan motor Check the fuse on the outdoor multi controller circuit board Check the fan motor connector CNF1 for disconnection or looseness 1 While the breaker is OFF disconnect the compressor wirings U V W from the outdoor power circuit board 2 While ...

Page 71: ...ture thermistor TH4 open short The black square indicates a switch position Detected in outdoor unit No Yes Yes Yes No No Is there any abnormality such as disconnection looseness or breakage Is the detected resistance normal Is the detected temperature normal Connect the wiring connector properly Replace the connector in the case of breakage Replace the thermistor Replace the outdoor multi control...

Page 72: ...ipe temperature thermistor TH6 open short The black square indicates a switch position Detected in outdoor unit No Yes Yes Yes No No Is there any abnormality such as disconnection looseness or breakage Is the detected resistance normal Is the detected temperature normal Connect the wiring connector properly Replace it in the case of breakage Replace the thermistor Replace the outdoor multi control...

Page 73: ... U4 Outdoor liquid pipe temperature thermistor TH3 open short The black square indicates a switch position SW1 Setting ON OFF Display on LED1 2 Unit 99 9 999 9 4 1 2 5 6 7 8 3 No Yes Yes Yes No No Is there any abnormality such as disconnection looseness or breakage Is the detected resistance normal Is the detected temperature normal Connect the wiring connector properly Replace it in the case of b...

Page 74: ... 7 8 3 No Yes Yes Yes No No Is there any abnormality such as disconnection looseness or breakage Is the detected resistance normal Is the detected temperature normal Connect the wiring connector properly Replace it in the case of breakage Replace the thermistor Replace the outdoor multi controller circuit board Malfunction of thermistor circuit No abnormality A connector contact failure is suspect...

Page 75: ...n No Yes Yes Yes No No Is there any abnormality such as disconnection looseness or breakage Is the detected resistance normal Is the detected temperature normal Connect the wiring connector properly Replace it in the case of breakage Replace the thermistor Replace the outdoor multi controller circuit board Malfunction of thermistor circuit No abnormality A connector contact failure is suspected Ch...

Page 76: ... 3 No Yes Yes Yes No No Yes No Is there any abnormality such as disconnection looseness or breakage Is the detected resistance normal Is the detected temperature normal Connect the wiring connector properly Replace it in the case of breakage Replace the thermistor Replace the outdoor multi controller circuit board Malfunction of thermistor circuit No abnormality A connector contact failure is susp...

Page 77: ... Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy The black square indicates a switch position 63HS High pressure sensor SW1 Setting ON OFF Display on LED1 2 Unit 99 9 999 9 kgf F 4 1 2 5 6 7 8 3 For the voltage refer to 8 6 HOW TO CHECK THE COMPONENTS No Yes Yes No No Yes Is there any abnormality such as disco...

Page 78: ...r OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy The black square indicates a switch position 63LS Low pressure sensor No Yes Yes No No Yes Is there any abnormality such as disconnection looseness or breakage Is the detected internal pressure normal Is the detected pressure normal Connect the wiring connector properly Replace it in the case of breakage Chec...

Page 79: ...s Remedy 10 consecutive second detection One time detection 34 A 38 A SW1 Setting ON OFF Display on LED1 2 Unit 0 999 9 Arms 4 1 2 5 6 7 8 3 Yes Yes No Yes Yes No No No Is the power supply single phase Is there any abnormality such as disconnection looseness or breakage The power supply voltage might be decreased or abnormal Check the power supply facility Connect the compressor wiring properly Re...

Page 80: ... or replacing boards Diagnosis Remedy 6600 A0 Duplex address error No Yes Yes No Is there any unit with the same address Does it operate normally Correct the address and turn the power OFF of indoor outdoor unit Fresh Master or Lossnay simultaneously for 2 minutes or more then turn the power back ON Malfunction of sending receiving circuit on indoor outdoor unit is suspected There is no abnormalit...

Page 81: ...osis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 6602 A2 Transmission processor hardware error Yes Yes No No A wiring work was performed while the power OFF Does it operate normally If the wiring work was performed while the power ON turn the power OFF of indoor outdoor unit Fresh Master or Lossnay simultaneously fo...

Page 82: ...ch is a function to connect disconnect transmission from to control system and centralized control system Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy No No Yes Yes Yes No Is the transmission line miswired Is the transmission line miswired Does it operate normally Correct the wiring then turn the power back...

Page 83: ...re malfunction of transmission processor Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Yes No Does it operate normally Replace the controller Defect of error source controller There is no abnormality on the AC unit It might be caused by an external noise so check the transmission line to remove the factor s ...

Page 84: ...ircuit on indoor outdoor unit 4 Disconnection of the connectors on the circuit board The cause of displayed address and attribute is on the indoor unit side An abnormality detected by the remote controller if receiving no ACK when sending data from the remote controller to the indoor unit 1 While operating with multi refrigerant system indoor units an abnormality is detected when the indoor unit t...

Page 85: ...ormality detected by the indoor unit if receiving no ACK when the indoor unit transmit signal to the Lossnay 1 An abnormality is detected when the indoor unit transmits signal to Lossnay while the Lossnay is turned OFF 2 While the indoor unit is operating with the other refrigerant Lossnay an abnormality is detected when the indoor unit transmits signal to the Lossnay while the outdoor unit with t...

Page 86: ... tolerance or not Check whether the correct kind of transmission line is used or not Correct it within the tolerance then perform the procedure 1 Connect the transmission line properly then perform the procedure 1 Is the abnormality replicated Is it set properly There is no abnormality on the AC unit It might be caused by an external noise so check the transmission line to remove the factor s Set ...

Page 87: ...ous page Defective outdoor multi controller circuit board repeater circuit on the outdoor unit is suspected Replace the outdoor multi controller circuit board one by one then check for normal operation When operating in a single refrigerant system single indoor unit the controller of the displayed address attribute is defective Apply the correct kind of transmission line then perform the procedure...

Page 88: ... boards Diagnosis Remedy No response frame error Yes Yes Yes Yes No No No No Does it operate normally The transmission line is connected properly It is not exceeding the tolerance Is correct kind of transmission line used Replace the controller board Defect of the controller which the displayed address attribute belong to Connect the transmission line properly Correct it within the tolerance Repla...

Page 89: ...t 5 Remote controller transmitting error caused by noise interference Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy Conduct the Remote Controller Diagnosis 2 or more times Is NG displayed Turn the power back ON No Is 6832 or ERC displayed No abnormality It might be caused by an external noise so check the tr...

Page 90: ...eive error Chart 2 of 2 No Yes Is the wiring connected properly meeting the condition Connect the wiring properly as specified in the chapter Electrical Work in the indoor unit Installation Manual Refer to the chapter Electrical Work Continued from the previous page No abnormality It might be caused by an external noise so check the transmission line to remove the factor s 90 OCH668G ...

Page 91: ...es Continue to the next page No Yes No Yes No Yes No Yes Yes Check the remote controller for main sub setting Conduct the Remote Controller Diagnosis more than 2 times Is the check code 6832 or 6833 still displayed Is there only 1 remote controller set as the main controller Set one remote controller to main remote controller and the other to sub Disconnect and reconnect the connector CN3A then tu...

Page 92: ...d error Chart 2 of 2 No Yes No abnormality It might be caused by an external noise so check the transmission line to remove the factor s Is the wiring connected properly meeting the condition Connect the wiring properly as specified in the chapter Electrical Work in the indoor unit Installation Manual Refer to the chapter Electrical Work Continued from the previous page 92 OCH668G ...

Page 93: ...e connecting disconnecting any connectors or replacing boards Diagnosis Remedy 7100 EF Total capacity error No Yes Yes No No Yes Is it set properly Is it set properly Is the total under 130 of outdoor unit capacity Check the capacity code switch SW2 on the indoor controller board on the connected indoor unit Check the model selection switch SW4 on the outdoor multi controller circuit board of the ...

Page 94: ...de 2 to 28 When connecting via branch box P15 to P100 model code 4 to 20 Diagnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 7101 EF Capacity code error Yes No Is it set properly Set the switch properly The model code of the connected indoor unit can be displayed by an operation of SW1 on the outdoor unit Check th...

Page 95: ...agnosis of defects Make sure to turn the power OFF before connecting disconnecting any connectors or replacing boards Diagnosis Remedy 7102 EF Connecting excessive number of units and branch boxes Yes No No Yes Check if at least 1 indoor unit is connected Is an indoor unit connected Does it exceed the limit Connect indoor unit Connect less number of units than the limit Note The model code of the ...

Page 96: ...e the indoor controller board Check whether the indoor unit address is set in 00 or in the range of 01 to 50 Branch box Yes No Is the address setting correct Set the address properly then turn the power OFF of indoor outdoor unit Fresh Master Lossnay and remote controller simultaneously for 2 minutes or more and turn the power back ON Replace the branch box controller board Check whether the branc...

Page 97: ...r Lossnay and remote controller simultaneously for 2 minutes or more and turn the power back ON Replace the M NET RC sub Check whether the M NET RC sub address is set in 000 or in the range of 151 to 200 Yes No Is the address setting correct Set the address properly then turn the power OFF of indoor outdoor unit Fresh Master Lossnay and remote controller simultaneously for 2 minutes or more and tu...

Page 98: ...connecting disconnecting any connectors or replacing boards Diagnosis Remedy No Yes No Yes Is the indoor unit authorized to connect with the outdoor unit Replace the indoor unit s to the connectable one Refer to the service manual of the outdoor unit or the connected indoor unit for the authorized combination Check whether the model selection switch is set correctly Are they correct Set the model ...

Page 99: ...emperature at thermostat ON Fan stops during heating operation Heat Defrost The fan stops during defrosting Fan does not stop while operation has been stopped Light out Fan runs for 1 minute after stopping to exhaust residual heat only in heating No setting of fan while start SW has been turned on Heat Standby Ultra low speed operation for 5 minutes after SW ON or until piping temperature reaches ...

Page 100: ... Switch Clear Do not clear When relocating units or connecting additional units 3 Abnormal data clear switch input Clear abnormal data Normal OFF to ON any time after the power is turned on To delete an error history 4 Pump down ON OFF During compressor running To facilitate outdoor unit the pumping down operation Frequency Fixed to 65 Hz Indoor Electronic expansion valve Fully open Outdoor fan st...

Page 101: ... of units Results in less capacity and increase of discharge temperature SW6 Function Switch 1 Initial settings 2 3 4 Change of defrosting control Enable For high humidity Normal Can be set when OFF or during operation To shorten the defrosting prohibition time in high humidity or heavy snow region in order to reduce malfunctions caused by frost The performance of the HEAT operation is somewhat re...

Page 102: ...ion To reduce dew condensation on the indoor unit by lowering the frequency The performance might be insufficient 5 6 Manual defrost Manual defrost Normal During compressor running in HEAT mode Turn ON when it is necessary to perform the defrosting operation forcedly Effective only at startup or 10 minutes after the last defrosting operation It performs the defrosting operation forcedly HEAT opera...

Page 103: ...oard A Remote control panel B Relay circuit C External input adapter PAC SC36NA E D Outdoor unit control board E Relay power supply F Procure locally G Max 10 m A Remote control panel B Relay circuit C External input adapter PAC SC36NA E D Outdoor unit control board E Relay power supply F Procure locally G Max 10 m E Lamp power supply F Procure locally G Max 10 m OFF ON OFF OFF OFF ON ON ON Silent...

Page 104: ...perature 20 C Normal 1182 5 83 Abnormal Open or short Solenoid valve coil Bypass valve SV1 Fan motor MF1 Measure the resistance between the terminals with a multimeter Winding temperature 20 C W V U Normal 0 44 0 022 Ω Abnormal Open or short PUMY SP VKM PUMY SP YKM 0 88 0 044 Ω Normal Red White Red Orange Red Yellow Red Blue Abnormal 46 4 Open or short Thermistor TH2 HIC pipe 1 2 3 4 5 M RD BU OG ...

Page 105: ...e breaker is OFF disconnect the fan motor connector CNF1 3 When 5 minutes have passed since turning ON the breaker turn SW7 1 ON 4 Check the voltage of the outdoor multi controller circuit board Measure the voltage in the outdoor controller circuit board TEST POINT 1 VDC between 1 and 4 of the fan connector 310 340 VDC Y VDC between 1 and 4 of the fan connector 310 340 VDC when PAM stops 380 VDC w...

Page 106: ...nstant 4057 2 Rt 7 465exp 4057 273 t 393 1 1 20 C 250 kΩ 30 C 160 kΩ 40 C 104 kΩ 50 C 70 kΩ 60 C 48 kΩ 70 34 kΩ 80 24 kΩ 90 17 5 kΩ 100 13 0 kΩ 110 9 8 kΩ High temperature thermistor Thermistor Compressor TH4 0 10 20 30 40 50 20 10 0 10 20 30 40 50 Temperature Resistance k 500 400 300 200 100 0 25 50 75 100 120 Temperature Resistance k 0 C 180 kΩ 25 C 50 kΩ 50 C 17 kΩ 70 C 8 kΩ 90 C 4 kΩ Thermisto...

Page 107: ...lf diagnosis LED1 2 1 When the pressure displayed on self diagnosis LED1 2 is between 0 and 0 098 MPaG 14 PSIG the high pressure sensor has a problem 2 When the pressure displayed on self diagnosis LED1 2 is approximately 5 0 MPaG 725 PSIG the control board has a problem 4 Remove the high pressure sensor from the control board and short circuit between the pin 2 and pin 3 connectors 63HS to check ...

Page 108: ...circuit between the pin 2 and pin 3 connectors 63LS to check the pressure with the self diagnosis LED1 2 1 When the pressure displayed on the self diagnosis LED1 2 exceeds 1 7 MPaG 247 PSIG the low pressure sensor has a problem 2 If other than 1 the control board has a problem 5 Remove the high pressure sensor 63HS from the control board and insert it into the connector for the low pres sure senso...

Page 109: ...pins of C82A 15 VDC Same as CNF1 5 4 VSP Voltage between pins of C515 and C516 0 VDC when stopped 1 6 5 VDC when operated Same as CNF1 6 4 CNF1 Connect to fan motor 1 4 310 340 VDC Y 310 380 VDC V 5 4 15 VDC 6 4 0 6 5 VDC 7 4 15 VDC when stopped 0 15 VDC pulse when operated VDC TEST POINT1 Voltage between pins of C510 310 340 VDC Y 310 380 VDC V Same as CNF1 1 4 VFG TEST POINT4 Voltage between pin...

Page 110: ...erminal block TB1 CNDC 280 380 VDC 1 3 Connect to the out door controller circuit board CNDC CN6 Thermistor TB1A TB2A TB3A TB1B TB2B TB3B Connect to DCL Brief Check of POWER MODULE If they are short circuited it means that they are broken Measure the resistance in the following points connectors etc 1 Check of POWER MODULE 1 Check of DIODE circuit R P1 S P1 R N1 S N1 2 Check of IGBT circuit P2 L1 ...

Page 111: ...ct to the outdoor multi controller circuit board CN2 1 5 Power circuit board Transmitting signal to the outdoor multi controller circuit board 0 5 VDC 2 5 Zero cross signal 0 5 VDC 3 4 Not used 6 5 15 VDC 7 5 15 VDC 5 1 2 6 7 TB U TB V TB W Connect to the compressor MC Voltage among phases 10 400 VAC Diode module U P2 V W N2 L3 N1 L1 P1 L2 DIP IPM TAB connec tor on X52CA Connect to the RS resistor...

Page 112: ...ect to the outdoor multi controller circuit board CN102 1 2 24 30 VDC 3 4 24 30 VDC CN1 Connect to the outdoor noise filter circuit board CNAC1 Y Connect to the outdoor power circuit board CNAC1 V 1 3 230 VAC TB1 Connect to the electrical parts box ...

Page 113: ...circuit board CNAC CNDC Connect to the outdoor controller circuit board CNDC LO1 LO2 LO3 POWER SUPPLY LO1 LO2 LO2 LO3 LO3 LO1 400 VAC OUTPUT Connect to the outdoor power circuit board TB L1 L2 L3 CNCT Primary current Connect to the outdoor power circuit board CN5 CNL Connect to the ACL4 E3 Connect to the electrical parts box E2 Connect to the electrical parts box PUMY SP112YKM BS PUMY SP125YKM BS ...

Page 114: ...r fan rotation frequency abnormality delay TH7 abnormality delay TH8 abnormality delay Display all abnormalities remaining in abnormality delay 9 10010000 Abnormality delay history 2 Heat sink overheating delay Compressor over current interception delay Voltage abnormality delay Insufficient refrigerant amount abnormality delay Current sensor primary current abnormality delay 63LS abnormality dela...

Page 115: ...n Minimum Sj correction depends on Td Minimum Sj correction depends on Shd LEV opening correction depends on Pd LEV opening correction depends on Td Correction of high compression ratio prevention Display active LEV control 47 11110100 State of compressor frequency control 1 Condensing temperature limit control Compressor temperature control Discharge temp heating backup control Pd abnormality con...

Page 116: ...ency 0 255 Hz Display of actual operating frequency 65 10000010 Target frequency 0 255 Hz Display of target frequency 66 01000010 Outdoor fan control step number 0 15 Display of number of outdoor fan control steps target 69 10100010 IC1 LEV Opening pulse 0 2000 pulse Display of opening pulse of indoor LEV 70 01100010 IC2 LEV Opening pulse 71 11100010 IC3 LEV Opening pulse 72 00010010 IC4 LEV Openi...

Page 117: ...arget indoor SC SH IC1 SCm SHm 0 0 20 0 109 10110110 Target indoor SC SH IC2 110 01110110 Target indoor SC SH IC3 111 11110110 Target indoor SC SH IC4 112 00001110 Target indoor SC SH IC5 113 10001110 Indoor unit check status IC9 12 No 9 unit check No 10 unit check No 11 unit check No 12 unit check Light on at time of abnormality 114 01001110 Indoor unit operation mode IC9 12 No 9 unit mode No 10 ...

Page 118: ...igh pressure sensor all thermistors and SC SH at time of abnormality delay 137 10010001 TH4 Compressor sensor data at time of abnormality delay 99 9 999 9 C 138 01010001 TH6 Suction pipe sensor data at time of abnormality delay 139 11010001 TH3 Outdoor liquid pipe sensor data at time of abnormality delay 140 00110001 TH8 Heat sink sensor data at time of abnormality delay 141 10110001 OC SC cooling...

Page 119: ...During heating subcool SC During cooling superheat SH Fixed to 0 during cooling operation Display of indoor SC SH data 164 00100101 IC10 SC SH 165 10100101 IC11 SC SH 166 01100101 IC12 SC SH 170 01010101 ROM version monitor 0 00 99 99 ver Display of version data of ROM 171 11010101 ROM type Display of ROM type 172 00110101 Check sum mode 0000 FFFF Display of check sum code of ROM 173 10110101 IC9 ...

Page 120: ... at time of abnormality 203 11010011 TH3 Outdoor liquid pipe sensor data at time of abnormality 204 00110011 TH8 Heat sink sensor data at time of abnormality 205 10110011 OC SC cooling at time of abnormality 99 9 999 9 C During heating subcool SC During cooling superheat SH Fixed to 0 during cooling operation Display of indoor SC SH data at time of abnormality 206 01110011 IC1 SC SH at time of abn...

Page 121: ...opening pulse abnormality delay 237 10110111 IC8 LEV opening pulse abnormality delay 238 01110111 IC6 SC SH at time of abnormality delay 99 9 999 9 C During heating subcool SC During cooling superheat SH Fixed to 0 during cooling operation Display of indoor SC SH data at time of abnormality delay 239 11110111 IC7 SC SH at time of abnormality delay 240 00001111 IC8 SC SH at time of abnormality dela...

Page 122: ...r fire Be sure to use the appropriate type of overcurrent protection switch Note that generated overcurrent may include some amount of direct current Caution Some installation site may require attachment of an earth leakage breaker If no earth leakage breaker is installed it may cause an electric shock Do not use anything other than breaker and fuse with correct capacity Using fuse and wire or cop...

Page 123: ...C L N S1 S2 S3 S1 S2 S3 S1 S2 S3 C D E L N NO 3N 380 400 415 V 50 Hz A B A B D L N S1 S2 S3 S1 S2 S3 S1 S2 S3 C D PUMY SP YKM series Schematic Drawing of Wiring When using a Branch Box and M NET control indoor unit example E L N N 220 230 240 V 50 Hz N 220 V 60 Hz Note The CITY MULTI seires indoor unit cannot receive power supplied from an outdoor unit so provide it with power separately B1 B2 B1 ...

Page 124: ...V2 Quantity of Type1 V2 Quantity of Type2 V2 Quantity of Type3 V2 Quantity of Type15 V3 Wire length km Example of G1 calculation When connecting 3 units of the SEZ KD respectively to a branch box with a wire that is 20 m long and 1 5 mm in diameter then con necting the branch box and PEFY VMA to a single breaker with a wire that is 100 m long in total and 2 5 mm in diameter G1 2 4 3 3 1 6 48 0 02 ...

Page 125: ...VVS CPEVS or MVVS Cable diameter 0 5 to 1 25 mm2 Remarks When 10 m is exceeded use a cable with the same specifications as transmission line wiring 3 MA Remote control cables Type of remote control cable Sheathed 2 core cable unshielded CVV Cable diameter 0 3 to 1 25 mm2 0 75 to 1 25 mm2 Remarks Within 200 m Connected with simple remote controller 9 4 2 Wiring examples Controller name symbol and a...

Page 126: ...anch Box Example of system when using an M NET controller When power is supplied separately N 220 230 240 V 50 Hz N 220 V 60 Hz Transmission cable CITY MULTI series indoor unit CITY MULTI series indoor unit CITY MULTI series indoor unit CITY MULTI series indoor unit CITY MULTI series indoor unit MA RC M NET RC M NET RC M NET RC MA RC MA RC Branch Box A control indoor unit MA RC A control indoor un...

Page 127: ...ollowing formulas to calculate the electrical characteristics before applying for a capacity agreement with the local electric power company 9 7 1 Obtaining the electrical characteristics of the CITY MULTI series system 1 Procedure for obtaining total power consumption The power consumption of the outdoor unit will vary depending on the total capacity of the selected indoor units 2 Method of obtai...

Page 128: ...nd additional refrigerant charge amounts in the spaces provided on the Refrigerant amount plate on the outdoor unit Calculation of additional refrigerant charge Calculate the additional charge using the liquid pipe size and length of the extended piping and total capacity of connected indoor units Calculate the additional refrigerant charge using the procedure shown to the right and charge with th...

Page 129: ...ing Diameter In Section From Outdoor Unit to First Branch Out door Unit Piping Diameter 1 Section From Outdoor Unit to First Branch A 2 Section From Branch to Indoor Unit a b c d 2 Refrigerant Piping Diameter In Section From Branch to Indoor Unit Indoor Unit Piping Diameter Each Section of Piping Branch header 4 branches CMY Y64 G E Branch header 8 branches CMY Y68 G E Liquid Pipe Gas Pipe Piping ...

Page 130: ...ping Diameter 1 Section From Outdoor Unit to First Branch A 2 Section From Branch to Indoor Unit a b c d e 3 Section From Branch to Branch B C 3 Refrigerant Piping Diameter In Section From Branch to Branch 2 Refrigerant Piping Diameter In Section From Branch to Indoor Unit Indoor Unit Piping Diameter Each Section of Piping Branch Joint CMY Y62 G E Branch Header 4 branches CMY Y64 G E Branch Header...

Page 131: ...or unit when the unit is shipped from the factory Therefore charge each refrigerant piping system with additional refrigerant at the installation site In addition in order to carry out service enter the size and length of each liquid pipe and additional refrigerant charge amounts in the spaces provided on the Refrigerant amount plate on the outdoor unit Calculation of additional refrigerant charge...

Page 132: ... Piping Selecting the Refrigerant Branch Kit Select the size from the table to the right 1 Refrigerant Piping Diameter In Section From Outdoor Unit to Branch box or Branch header Out door Unit Piping Diameter 1 Section From Outdoor Unit to Branch box or Branch header A to E 2 Sections From Branch box or Branch header to Indoor Unit a to j 2 Refrigerant Piping Diameter In Section From Branch box or...

Page 133: ... right 1 Refrigerant Piping Diameter In Section From Outdoor Unit to Branch box or Branch header Out door Unit Piping Diameter 1 Section From Outdoor Unit to Branch box or Branch header A to E 2 Sections From Branch box or Branch header to Indoor Unit a to k 2 Refrigerant Piping Diameter In Section From Branch box or Branch header to Indoor Unit Indoor Unit Piping Diameter Each Section of Piping B...

Page 134: ...te room volumes m3 and find the room with the smallest volume The part with represents the room with the smallest volume If the calculation results do not exceed the maximum concentration perform the same calculation for larger rooms until it has been determined that nowhere exceeds the maximum concentration Indoor unit All refrigerant of this system will leak out to this room if there is leakage ...

Page 135: ...n the multi controller circuit board Symbols on the board CNF1 Fan motor LEV A LEV LEV B LEV 21S4 4 way valve coil 63HS Pressure sensor SV1 Solenoid valve coil 63H Pressure switch 63LS Pressure sensor 5 Disconnect the pipe side connections of the following parts Thermistor HIC TH2 Thermistor Compressor TH4 Thermistor Liquid TH3 Thermistor Suction TH6 Thermistor Ambient TH7 6 Remove the comp felt t...

Page 136: ...rs on the noise filter circuit board See Photo 8 6 Remove 9 supports on the noise filter circuit board See Photo 8 7 Remove the noise filter circuit board See Photo 8 8 Remove the noise filter plate fixing screws See Photo 8 9 Disconnect the connectors of reactor on the bottom plate of the electrical parts box See Photo 9 10 Remove 4 screws 2 on the bottom plate of the electrical parts box See Pho...

Page 137: ...emoving the thermistor Liquid TH3 the thermistor Suction TH6 and thermistor Ambient TH7 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove the side panel R by removing the following screws Electrical parts box fixing screws 4 10 2 pieces Valve bed fixing screws 5 12 2 pieces Side panel fixing screw on the right side of the panel 5 12 1 piece Side panel fixing screw ...

Page 138: ...emoving LEV 1 Remove the service panel See Photo 1 2 Remove the top panel See Photo 1 3 Remove the electrical parts box Refer to procedure 3 4 Remove the LEV coil Refer to procedure 8 5 Recover refrigerant 6 Remove the welded part of LEV Note 1 Recover refrigerant without spreading it in the air Note 2 The welded part can be removed easily by removing the right side panel Note 3 When installing th...

Page 139: ...el See Photo 1 3 Remove the electrical parts box Refer to procedure 3 4 Remove 3 valve bed fixing screws 5 12 and 4 stop valve fixing screws 5 16 and then remove the valve bed See Photo 4 5 Remove 4 right side panel fixing screw 5 12 in the rear of the unit and then remove the right side panel 6 Remove the 4 way valve coil See Photo 15 7 Recover refrigerant 8 Remove the welded part of 4 way valve ...

Page 140: ...ut spreading it in the air Note 2 The welded part can be removed easily by removing the right side panel Note 3 When installing the high pressure switch and high pressure sensor cover them with a wet cloth to prevent them from heating 100 C or more then braze the pipes so that the inside of pipes are not oxidized 14 Removing the low pressure sensor 63LS and the high pressure sensor 63HS 1 Remove t...

Page 141: ...r refrigerant 12 Remove the welded pipe of compressor inlet and outlet 13 Remove 3 compressor fixing nuts Note 1 Recover refrigerant without spreading it in the air Note 2 When reconnecting the compressor wirings ensure that the connection is correct Check the color of the wiring and the label on the terminal block and connect properly Photo 18 16 Removing the accumulator 1 Remove the service pane...

Page 142: ...ction except for the ON OFF button 6 ON OFF lamp This lamp lights up in green while the unit is in operation It blinks while the remote controller is starting up or when there is an error 7 Function button F1 Main display Press to change the operation mode Menu screen The button function varies with the screen 8 Function button F2 Main display Press to decrease temperature Main menu Press to move ...

Page 143: ...ool Set temp Auto Basic mode Fri Cool Mode Temp Fan Set temp Auto 2 1 5 6 7 8 9 0 1 3 9 4 2 3 4 5 6 7 2 1 5 Display 4 3 8 4 Appears when the Weekly timer is enabled 5 Appears while the units are operated in the energy saving mode Will not appear on some models of indoor units 6 Appears while the outdoor units are operated in the silent mode 7 Appears when the built in thermistor on the remote cont...

Page 144: ...l vane angle ON OFF timer Auto return Clock Main Sub Temp range Auto OFF timer Schedule Daylight saving time Clock Administrator password Operation locked 3D i See sensor High power Vane Louver Vent Lossnay Comfort Timer Energy saving Basic setting Display setting Operation setting Restriction Weekly timer OU silent mode Timer menu Main display Display details Contrast Brightness Language selectio...

Page 145: ...t Function setting Lossnay Error history Maintenance password Dealer information input Error information Test run menu Maintenance information Filter information Cleaning Settings menu Check menu Other menu Auto descending panel Descending operation Self check Descending adjustment Remote controller check Continue from the previous page Not all functions are available on all models of indoor units...

Page 146: ...utdoor units over temperature control Set the Start Stop times for each day of the week Select the desired silent level from Normal Middle and Quiet Night setback 1 Use to make Night setback settings Select Yes to enable the setting and No to disable the setting The temperature range and the start stop times can be set Energy saving Restriction Temp range 2 Use to restrict the preset temperature r...

Page 147: ...turing number contact information dealer s phone number can be displayed The model name manufacturing number and contact information need to be registered in advance to be displayed Filter information Use to check the filter status The filter sign can be reset Cleaning Auto descending panel Use to lift and lower the auto descending panel Optional parts Service Test run Select Test run from the Ser...

Page 148: ...oor unit the indoor unit may beep twice as the unit is performing the initial automatic check The indoor unit beeps to confirm that the signal transmitted from the remote controller has been received Signals can be received up to approximately 7 meters in a direct line from the indoor unit in an area 45 to the left and right of the unit However illumination such as fluorescent lights and strong li...

Page 149: ...ting Auto Set Temperature buttons Weekly timer ON OFF button Set Time button Sets the time Airflow button Changes up down airflow direction Mode button Changes operation mode Timer ON button Timer OFF button OFF ON button Fan Speed button Changes fan speed SET SEND button CANCEL button Up Down buttons Menu button i see button Reset button Remote controller display Transmission area 3D i See sensor...

Page 150: ...mperature and the relative humidity 4 LED Indicator The LED indicator indicates the operation status in different colors The LED indicator lights up during normal operation lights off when units are stopped and blinks when an error occurs 5 Touch panel Backlit LCD The touch panel shows the operation settings screen When the backlight is off touching the panel turns the backlight on and it will sta...

Page 151: ...me of occur rence model name and serial number will appear The model name and serial number will appear only if the informa tion have been registered Press the F1 or F2 button to go to the next page When an error occurs the following screen will appear Check the error status stop the operation and consult your dealer Contact information dealer s phone number will appear if the information has been...

Page 152: ...formation Filter information Cleaning While no errors are occurring page 2 2 of the error information can be viewed by selecting Error information from the Maintenance menu Errors cannot be reset from this screen Checking the error information F1 F2 F3 F4 ...

Page 153: ...nce password is required 3 If the password matches the Service menu will appear The type of menu that appears depends on the connected indoor units type A screen will appear that indicates the setting has been saved Navigating through the screens To go back to the Service menu button To return to the previous screen button Note The initial maintenance password is 9999 Change the default password a...

Page 154: ... through the operation modes in the order of Cool and Heat Check the auto vane with the F1 F2 buttons Press the button to return to Test run operation Press the button When the test run is completed the Test run menu screen will appear The test run will automatically stop after 2 hours The function is available only for the model with vanes Test run operation Auto vane check Press the button and o...

Page 155: ...t from the unit 6 Press the VANE button and check whether the auto vane operates properly 7 Press the ON OFF button to stop the test run Note Point the remote controller towards the indoor unit receiver while following steps 2 to 7 It is not possible to run in FAN DRY or AUTO mode 1 A B 2 3 12 4 3 PAR SL100A E 1 Press the button 1 to stop the air conditioner If the weekly timer is enabled is on pr...

Page 156: ...o ON status Except the set temperature normal operation functions are accessible during test run c By selecting the address of another indoor unit the liquid pipe temperature of the selected unit can be monitored d The test run will automatically end in two hours When AHC is controlled from the controller To monitor the operating status of AHC touch the button on the Test run screen and access the...

Page 157: ... make additional settings press the button to return to the screen shown in the above step Set the function numbers for other indoor units by following the same steps Settings menu Service menu Function setting Lossnay Cursor 12 5 FUNCTION SETTING 12 5 1 PAR 40MAA Select Function setting and press the button Select Setting from the Service menu and press the button 1 Select Service from the Main m...

Page 158: ...ss remote controller toward the receiver of the indoor unit and press the h button 3 Set the unit number Press the TEMP button to set the unit number Press 01 to specify the indoor unit whose unit number is 01 Direct the wireless remote controller toward the receiver of the indoor unit and press the min button Notes 1 If a unit number that cannot be recognized by the unit is entered 3 beeps of 0 4...

Page 159: ...ode number B Fig 3 Direct the wireless remote controller toward the receiver of the indoor unit and press the button Current setting number 1 1 beep 1 second 2 2 beep 1 second each 3 3 beep 1 second each 4 Selecting the setting number Use the button to change the Setting number C Fig 4 Direct the wireless remote controller toward the receiver of the indoor unit and press the button 5 To select mul...

Page 160: ...ck with the F1 or F2 button and press the button 3 16 error history records will appear 4 records are shown per page and the top record on the first page indicates the latest error record To delete the error history press the F4 button Delete on the screen that shows error history A confirmation screen will appear asking if you want to delete the error history Press the F4 button OK to delete the ...

Page 161: ...lf check screen With the F1 or F2 button enter the M NET address and press the button Check code unit number attribute and indoor unit de mand signal ON OFF status at the contact will appear will appear if no error history is available 3 Resetting the error history Press the F4 button Reset on the screen that shows the error history A confirmation screen will appear asking if you want to delete th...

Page 162: ...NET address B indoor unit and the number of blinks of the OPERATION INDICATOR lamp check is completed f 12 7 3 PAR SL100A E Procedure 1 Press the CHECK button twice CHECK lights and refrigerant address 00 blinks Check that the remote controller s display has stopped before continuing 2 Press the TEMP buttons Select the refrigerant address of the indoor unit for the self diagnosis Note Set refriger...

Page 163: ...832 There is noise on the transmission line or the indoor unit or another remote controller is faulty Check the transmission line and the other remote controllers NG ALL0 ALL1 Send receive circuit fault The remote controller needs replac ing ERC The number of data errors is the discrepancy between the number of bits in the data transmitted from the remote controller and that of the data that was a...

Page 164: ...d with a refrigerant system which includes branch box It is necessary to perform group settings and Interlocked LOSSNAY at making group settings of different refrigerant systems multiple outdoor unit A Group settings Enter the indoor unit controlled by the remote controller check the content of entries and clear entries etc B Interlocked LOSSNAY Used to set the linked operation of a Lossnay unit H...

Page 165: ...e unit whose address was set in the Add 1 section 3 To delete the interlock settings After taking Step 2 above select the address to be deleted in the Add 2 section and then touch the Del button 1 Select an address in the Address field 2 Touch the Conf button to search for the interlocked units The results will appear in the left column When multiple units are found the addresses that do not fit o...

Page 166: ...REVISED EDITION E Issued Jul 2019 No OCH668 REVISED EDITION D Issued Nov 2018 No OCH668 REVISED EDITION C Issued Apr 2018 No OCH668 REVISED EDITION B Issued Dec 2017 No OCH668 REVISED EDITION A Published Sep 2017 No OCH668 Made in Japan Specifications are subject to change without notice HEAD OFFICE TOKYO BUILDING 2 7 3 MARUNOUCHI CHIYODA KU TOKYO100 8310 JAPAN ...

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Mitsubishi Electric PUMY-SP112VKM-BSR2.TH, Technical & Service Manual

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