Mitsubishi Electric PUMY-P100VHMB User Manual

TECHNICAL & SERVICE MANUAL
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
CONTENTS
1. TECHNICAL CHANGE
......................................
2
2. SAFETY PRECAUTION
....................................
3
3. OVERVIEW OF UNITS
......................................
6
4. SPECIFICATIONS
.............................................
8
5. DATA
................................................................
10
6. OUTLINES AND DIMENSIONS
......................
26
7. WIRING DIAGRAM
.........................................
27
8. NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION
.....
29
9. TROUBLESHOOTING
....................................
39
10. ELECTRICAL WIRING
....................................
84
11. REFRIGERANT PIPING TASKS
.....................
87
12. DISASSEMBLY PROCEDURE
.......................
91
OUTDOOR UNIT
No. OCH446
REVISED EDITION-B
[Service Ref.]
PUMY-P100VHMB PUMY-P100VHMBR1 PUMY-P100VHMBR2
PUMY-P125VHMB PUMY-P125VHMBR1 PUMY-P125VHMBR2
PUMY-P140VHMB PUMY-P140VHMBR1 PUMY-P140VHMBR2
PUMY-P100VHMB-BS PUMY-P100VHMBR1-BS PUMY-P100VHMBR2-BS
PUMY-P125VHMB-BS PUMY-P125VHMBR1-BS PUMY-P125VHMBR2-BS
PUMY-P140VHMB-BS PUMY-P140VHMBR1-BS PUMY-P140VHMBR2-BS
PUMY-P100YHMB PUMY-P100YHMBR1 PUMY-P100YHMBR2
PUMY-P125YHMB PUMY-P125YHMBR1 PUMY-P125YHMBR2
PUMY-P140YHMB PUMY-P140YHMBR1 PUMY-P140YHMBR2
PUMY-P100YHMB-BS PUMY-P100YHMBR1-BS PUMY-P100YHMBR2-BS
PUMY-P125YHMB-BS PUMY-P125YHMBR1-BS PUMY-P125YHMBR2-BS
PUMY-P140YHMB-BS PUMY-P140YHMBR1-BS PUMY-P140YHMBR2-BS
HFC
utilized
R410A
September 2010
NOTE :
· This service manual describes technical data of outdoor unit. As for indoor units, refer to its service manual.
· RoHS compliant products have <G> mark on spec name plate.
· For servicing of RoHS compliant products, refer to RoHS PARTS LIST.
[Model name]
<Outdoor unit>
PUMY-P100VHMB
PUMY-P125VHMB
PUMY-P140VHMB
PUMY-P100VHMB-BS
PUMY-P125VHMB-BS
PUMY-P140VHMB-BS
PUMY-P100YHMB
PUMY-P125YHMB
PUMY-P140YHMB
PUMY-P100YHMB-BS
PUMY-P125YHMB-BS
PUMY-P140YHMB-BS
Model name
indication
PARTS CATALOG (OCB446)
Revision :
· PUMY-P100, 125, 140V/YHMBR2(-BS) are added in REVISED EDITION-B.
· Some descriptions have been modified.
· Please void OCH446 REVISED EDITION-A.

Mitsubishi Electric PUMY-P100VHMB Specifications

General

Cooling Capacity (kW)	10.0
Heating Capacity (kW)	11.2
Refrigerant	R410A
Operating Temperature Range (Cooling)	-5°C to 46°C
Series	PUMY
Operating Temperature Range (Heating)	-20 to +21°C
Outdoor Unit Noise Level	58 dB
Indoor Unit Weight	N/A (dependent on connected indoor units)
Air Flow Rate (Indoor Unit)	N/A (dependent on connected indoor units)

Summary

1 TECHNICAL CHANGE

2 SAFETY PRECAUTION

2-1. CAUTIONS RELATED TO NEW REFRIGERANT

Discusses using appropriate pipes, sealing, cleaning, and specific tools for R410A refrigerant.

2-2. PRECAUTIONS FOR SALT PROOF TYPE "-BS" MODEL

Provides guidelines for salt-resistant models to prevent corrosion and maintain performance.

Cautions for refrigerant piping work

Covers pipe thickness, flare dimensions, and tools for R410A refrigerant to ensure airtightness.

3 OVERVIEW OF UNITS

3-1. UNIT CONSTRUCTION

Explains unit construction, including outdoor units, indoor unit connectivity, and branching components.

3-2. UNIT SPECIFICATIONS

Details outdoor unit specifications, model identification, and operating temperature ranges.

4 SPECIFICATIONS

Detailed Unit Specifications

Lists detailed specifications for cooling/heating capacity, power, dimensions, compressor, fan, and protection features.

5 DATA

5-1. COOLING AND HEATING CAPACITY AND CHARACTERISTICS

Explains how to calculate system capacity and provides methods for obtaining indoor unit capacities.

5-2. STANDARD CAPACITY DIAGRAM

Presents capacity diagrams based on total indoor unit capacity for different models.

6 OUTLINES AND DIMENSIONS

Piping Knockout Hole Details

Illustrates the dimensions and locations of piping and wiring knockout holes on the outdoor unit.

7 WIRING DIAGRAM

Cautions when Servicing

Provides warnings regarding power supply, component checks, and self-diagnosis procedures.

8 NECESSARY CONDITIONS FOR SYSTEM CONSTRUCTION

8-1. TRANSMISSION SYSTEM SETUP

Details wiring methods and address settings for M-NET remote control systems.

8-2. REFRIGERANT SYSTEM DIAGRAM

Shows refrigerant flow paths for cooling/heating and specifies pipe diameters for connections.

8-3. SYSTEM CONTROL

Covers selection of control wires and system switch settings for proper operation.

9 TROUBLESHOOTING

9-1. CHECK POINTS FOR TEST RUN

Outlines pre-test run checks, safety measures, and the step-by-step procedure for performing a test run.

9-1-2. Special Function Operation and Settings (for M-NET Remote Controller)

Details how to perform group and paired settings for M-NET remote controllers, including address entry.

9-1-3. Countermeasures for Error During Test Run

Lists check codes, corresponding troubles, causes, and countermeasures for errors detected during test run.

Check code 1102 - Serial transmission trouble

Details the cause and check points for serial transmission trouble (Check code 1102).

Check code 1300 - Low pressure (63L operated)

Explains causes and checks for low-pressure errors when the 63L switch operates.

Check code 1500 - Superheat due to low discharge temperature

Describes causes and checks for superheat issues due to low discharge temperature.

Check code 2502 - Drain pump (DP) / Float switch model

Details causes and checks for drain pump or float switch abnormalities, including error code 2502.

Check code 4100 - Compressor overcurrent interruption

Explains causes and checks for compressor overcurrent interruption, especially when locked.

Check code 4220 - Overvoltage or voltage shortage

Details causes and checks for overvoltage or voltage shortage issues during compressor operation.

Check code 5101 - Room temperature thermistor (TH21)

Outlines causes and checks for errors related to the room temperature thermistor (TH21).

Check code 5102 - Liquid pipe temperature thermistor (TH22)

Explains causes and checks for errors related to the liquid pipe temperature thermistor (TH22).

Check code 5103 - Gas pipe temperature thermistor (TH23)

Details causes and checks for errors related to the gas pipe temperature thermistor (TH23).

Check code 5106 - Outdoor temperature thermistor (TH7)

Outlines causes and checks for errors related to the outdoor temperature thermistor (TH7).

Check code 5201 - Pressure sensor (63HS)

Explains causes and checks for errors related to the pressure sensor (63HS).

Check code 6603 - Transmission bus busy error

Details causes and checks for transmission bus busy errors related to communication.

Check code 6607 - No ACK (Acknowledgement)

Explains causes and checks for errors when no ACK is received from the controller.

Check code 6608 - No response

Details causes and checks for errors when no response is received.

Check code 6831 - Signal reception (Remote controller)

Outlines causes and checks for errors related to remote controller signal reception.

Check code 7101 - Remote controller sensor

Explains causes and checks for errors related to the remote controller sensor.

9-2. REMOTE CONTROLLER DIAGNOSIS

Remote controller self-diagnosis result

Explains how to interpret self-diagnosis results for remote controllers and potential causes of errors.

9-3. REMOTE CONTROLLER TROUBLE

(1) For M-NET remote controller systems

Lists symptoms, causes, and inspection methods for M-NET remote controller issues.

(2) For MA remote controller systems

Details symptoms, causes, and inspection methods for MA remote controller issues.

9-5. INTERNAL SWITCH FUNCTION TABLE

SW1 Digital Display Switching

Explains the settings for SW1, which controls digital display switching and model selection.

SW6 function switching

Details the functions and settings for SW6, related to current limitation and restriction.

9-6. OUTDOOR UNIT INPUT/OUTPUT CONNECTOR

Silent Mode / Demand Control (CN3D)

Explains how to select silent mode and demand control using DIP switches on the outdoor controller board.

9-7. HOW TO CHECK THE PARTS

Thermistor <Outdoor pipe> (TH3)

Provides instructions and resistance values for checking the outdoor pipe thermistor (TH3).

Check method of DC fan motor (fan motor/outdoor controller circuit board)

Guides on troubleshooting DC fan motors, including fuse checks, wiring, and voltage measurements.

9-9. TEST POINT DIAGRAM

Vcc (TEST POINT 2)

Identifies test point 2 for voltage measurement on the outdoor controller circuit board.

Outdoor power circuit board

Shows a diagram of the outdoor power circuit board and explains basic checks for the power module.

Outdoor converter circuit board

Provides a diagram of the outdoor converter circuit board and its connections.

Transmission power board

Shows a diagram of the transmission power board and outlines basic checks for the power module.

Outdoor noise filter circuit board

Displays a diagram of the outdoor noise filter circuit board and its connections.

Tester check points of Active filter module

Lists tester check points for the active filter module and symptoms of trouble.

9-10. OUTDOOR UNIT FUNCTIONS

SW1 setting

Details the meaning of SW1 settings for various display modes and abnormality codes.

SW1 setting

Continues to explain SW1 settings for operation modes, LEV control, and compressor frequency.

SW1 setting

Continues to explain SW1 settings for various sensor data and capacity codes.

SW1 setting

Continues SW1 settings for SC/SH data, LEV opening pulse, and temperature sensors.

SW1 setting

Continues SW1 settings for various sensor data, including abnormality delays and capacity codes.

SW1 setting

Continues SW1 settings for various sensor data, including abnormality delays and ROM version information.

SW1 setting

Continues SW1 settings for various sensor data, including LEV opening pulse and capacity codes.

10 ELECTRICAL WIRING

10-1. OVERVIEW OF POWER WIRING

Provides general notes and warnings concerning power wiring for the system.

10-3. DESIGN FOR CONTROL WIRING

Covers selection of control wires and system switch settings for proper operation.

10-6. METHOD FOR OBTAINING ELECTRICAL CHARACTERISTICS WHEN A CAPACITY AGREEMENT IS TO BE SIGNED WITH AN ELECTRIC POWER COMPANY

10-6-1. Obtaining the electrical characteristics of a CITY MULTI-S series system

Explains how to obtain total power consumption and current for electrical capacity agreements.

11 REFRIGERANT PIPING TASKS

11-1. REFRIGERANT PIPING SYSTEM

Details the refrigerant piping system, including permissible lengths, branch kits, and diameter selection.

11-2. PRECAUTIONS AGAINST REFRIGERANT LEAKAGE

Introduces R410A refrigerant safety, concentration limits, and installation guidelines to prevent injury.

12 DISASSEMBLY PROCEDURE

1. Removing the service panel and top panel

Provides instructions for removing the service panel and top panel of the outdoor unit.

7. Removing the 4-way valve coil (21S4)

Details the steps for removing the 4-way valve coil, including disconnecting electrical connectors.

10. Removing the high pressure switch (63H) and low pressure switch (63L)

Guides on removing the high and low pressure switches, including refrigerant recovery.

12. Removing the compressor (MC)

Provides a step-by-step procedure for removing the compressor, including refrigerant recovery.

3. Removing the electrical parts box

Details how to remove the electrical parts box and disconnect various connectors and wires.

4. Removing the thermistor <Low pressure saturated temp.> (TH6)

Guides on removing the low pressure saturated temperature thermistor (TH6) and notes replacement with TH7.

6. Removing the thermistor <Outdoor pipe> (TH3) and thermistor <Discharge/Compressor> (TH4)

Details the removal of outdoor pipe and discharge/compressor thermistors, including connector disconnection.

9. Removing bypass valve coil (SV1) and bypass valve

Provides instructions for removing the bypass valve coil and the valve itself, including refrigerant recovery.

12. Removing the reactors (ACL1, ACL2, ACL3)

Guides on removing reactors, including handling precautions for their weight.

13. Removing the compressor (MC)

Provides a step-by-step procedure for removing the compressor, including refrigerant recovery.