Mitsubishi Electric CITY MULTI PUHY-P250YEM-A User Manual

AIR CONDITIONERS CITY MULTI
Models PUHY-P200YEM-A, P250YEM-A, P315YEM-A
PUY-P200YEM-A, P250YEM-A, P315YEM-A
PURY-P200YEM-A, P250YEM-A
CMB-P104, P105, P106, P108, P1010, P1013, P1016V-F
PUHY-200YEM-A, 250YEM-A, 315YEM-A
PUY-200YEM-A, 250YEM-A, 315YEM-A
PUHY-250YEMK-A, 315YEMK-A
PUHY-200YEMC-A, 250YEMC-A, 315YEMC-A
Service Handbook

Mitsubishi Electric CITY MULTI PUHY-P250YEM-A Specifications

General

Model	PUHY-P250YEM-A
Series	CITY MULTI
Type	Outdoor Unit
Cooling Capacity	25.0 kW
Heating Capacity	28.0 kW
Refrigerant	R410A
Operating Temperature (Cooling)	-5°C to 46°C
Power Supply	380-415V, 50Hz, 3 Phase
Operating Temperature (Heating)	-20 to +15.5°C

Summary

Safety Precautions

Before Installation and Electric Work

Guidelines for safe installation and electrical work, including warnings and symbols.

R407C Refrigerant Precautions

Specific safety measures and handling guidelines for R407C refrigerant.

Test Run Procedures

Pre-Test Run Checks and Inverter Caution

Troubleshooting Major Components

Pressure Sensor Troubleshooting

Diagnosing issues related to pressure sensors and their readings.

Solenoid Valve and LEV Issues

Troubleshooting procedures for solenoid valves and electronic expansion valves (LEV).

Inverter and Power Circuit Faults

Diagnosing and resolving problems related to the inverter and power circuits.

Remote Controller and Communication Errors

Identifying and resolving issues with remote controllers and communication systems.

System Error Code Diagnostics

Guide to interpreting error codes and implementing corresponding countermeasures.

Leak Detection and Refrigerant Management

Leak Location Procedures (Cooling Mode)

Leak Location Procedures (Heating Mode)

Refrigerant Composition Check

Procedure for checking and verifying refrigerant composition (R407C).