Advertisement
Quick Links
SERVICE MANUAL
<Outdoor unit>
Model name
PUMY-P112VKM6
PUMY-P125VKM6
PUMY-P140VKM6
PUMY-P112YKM5
PUMY-P125YKM5
PUMY-P140YKM5
Salt proof model
PUMY-P112VKM6-BS
PUMY-P125VKM6-BS
PUMY-P140VKM6-BS
PUMY-P112YKM5-BS
PUMY-P125YKM5-BS
PUMY-P140YKM5-BS
PUMY-P112VKM6-ER
PUMY-P125VKM6-ER
PUMY-P140VKM6-ER
PUMY-P112YKM5-ER
PUMY-P125YKM5-ER
PUMY-P140YKM5-ER
PUMY-P112VKM6-ERBS
PUMY-P125VKM6-ERBS
PUMY-P140VKM6-ERBS
PUMY-P112YKM5-ERBS
PUMY-P125YKM5-ERBS
PUMY-P140YKM5-ERBS
Model name
indication
1. SERVICE REF. ··································· 2
2. SAFETY PRECAUTION ······················· 3
3. OVERVIEW OF UNITS ························ 7
4. SPECIFICATIONS ···························· 12
5. DATA ·············································· 14
6. OUTLINES AND DIMENSIONS ··········· 27
7. WIRING DIAGRAM ··························· 29
8. TROUBLESHOOTING ······················· 31
9. DISASSEMBLY PROCEDURE ···········107
10. SYSTEM CONSTRUCTION ···············119
11. ELECTRICAL WIRING ·····················121
12. REFRIGERANT PIPING TASKS ·········122
13. REMOTE CONTROLLER ··················123
Appendix: Installation manual (Exerpt of English Ver.)
PARTS CATALOG (OCB790)
HFC
utilized
R410A
June 2022
OCH790
Advertisement
Related Manuals for Mitsubishi Electric CITY MULTI PUMY-P112YKM5
Summarization of Contents
Safety Precautions
R410A Refrigerant Cautions
Important cautions related to the use of R410A refrigerant during service operations.
Refrigerant Handling and Service Tools
Procedures for additional refrigerant charge and a list of required service tools for R410A.
Model Precautions and Piping
Salt-Proof Model Precautions
Precautions for maintaining performance of the salt-proof "-BS" model units.
R410A Refrigerant Piping Cautions
Cautions for R410A refrigerant piping, including pipe thickness and flare dimensions.
Unit Overview and System Construction
System Construction Overview
Details on outdoor unit capacities and connectable indoor units for system configuration.
Branch Box System Configuration
System configurations utilizing branch boxes for various indoor unit types.
Mixed System Configuration
System configurations for mixed systems, including branch box and CITY MULTI units.
System Specifications and Operating Ranges
Outdoor Unit Specifications
Detailed specifications for outdoor units, including capacity and power requirements.
Model Identification and Operating Temperatures
Method for identifying MULTI-S models and operating temperature ranges.
Unit Selection Data
Cooling Capacity Selection
Calculation process and guidelines for selecting units based on cooling load and capacity.
Heating Capacity Selection
Calculation process and guidelines for selecting units based on heating load and capacity.
Capacity Correction by Temperature
Cooling Capacity Correction Factors
Graphs showing cooling capacity correction factors based on indoor and outdoor temperatures.
Heating Capacity Correction Factors
Graphs showing heating capacity correction factors based on indoor and outdoor temperatures.
Standard Capacity Diagrams
Cooling Capacity Diagrams by Model Series
Cooling capacity vs. total indoor unit capacity for P112, P125, and P140 models.
Heating Capacity Diagrams by Model Series
Heating capacity vs. total indoor unit capacity for P112, P125, and P140 models.
Capacity Correction for Piping Length
Cooling Capacity Correction Curves
Graphs showing cooling capacity correction ratios based on refrigerant piping length for different models.
Heating Capacity Correction Curves
Graphs showing heating capacity correction factors for frost/defrosting based on outdoor temperature.
Troubleshooting
Test Run Procedures and Checks
Steps and checks required before and during a test run for system operation.
Error Code Troubleshooting
Comprehensive guide to resolving system errors based on code numbers.
Component Checking Procedures
Checking Thermistors, Motors, and Coils
Methods for checking thermistors, fan motors, solenoid valve coils, and compressor resistance.
Checking Expansion Valves and Sensors
Methods for checking linear expansion valves and pressure sensors.
Circuit Board and Connector Diagrams
Outdoor Controller and Power Circuit Boards
Diagrams and test points for the outdoor multi controller and power circuit boards.
M-NET and Noise Filter Circuit Boards
Diagrams for the M-NET power circuit board and outdoor noise filter circuit board.
Outdoor Unit Information Display
Error and Abnormality Code Displays
Mapping of SW1 settings to LED displays for error and abnormality codes.
Abnormality Delay Code Details
Explanation of various abnormality delay codes and their associated issues.
Information Display Contents and Data
Details on various information displayed via SW1 settings, including operational modes and sensor data.
Disassembly Procedure
Removing Panels, Fan Motor, and Electrical Parts Box
Steps to remove panels, fan motor, and electrical parts box.
Removing Thermistors, Sensors, Valves, and Coils
Procedures for removing thermistors, sensors, valves, and their coils.
Removing Compressor and Accumulator
Steps for removing the compressor and accumulator from the unit.
System Construction Examples
Refrigerant Piping and Wiring Example
Example wiring diagram showing refrigerant piping and transmission cable connections.
Refrigerant System and Piping Details
Refrigerant System Diagram
Schematic diagram of the refrigerant system, including components and flow.
Refrigerant Piping Specifications
Specifications for refrigerant piping sizes, including liquid and gas pipe diameters.
Refrigerant Piping Tasks
Refrigerant Piping System Overview
Overview of the refrigerant piping system and reference to installation manual.
Refrigerant Leakage Precautions
Safety precautions and calculations for R410A concentration to prevent refrigerant leakage.
Remote Controller Operations
Remote Controller Interface and Basic Functions
Overview of remote controller interfaces, buttons, and basic operational functions.
Remote Controller Advanced Functions and Diagnostics
Covers error information, service menus, test runs, function settings, and diagnostics.
Need help?
Do you have a question about the CITY MULTI PUMY-P112YKM5 and is the answer not in the manual?
Questions and answers