Mitsubishi Electric PURY-P200 User Manual

Models PURY-P200, P250, P300, P350, P400YGM-A
PURY-P450, P500, P550, P600, P650YGM-A
Service Handbook
AIR CONDITIONERS CITY MULTI

Mitsubishi Electric PURY-P200 Specifications

General

Brand	Mitsubishi Electric
Model	PURY-P200
Category	Air Conditioner
Language	English

Summary

Safety Precautions

Precautions for Handling Units for Use with R410A

Do not use the existing refrigerant piping

Reasons for not using existing piping with R410A due to chlorine and pressure.

Use refrigerant pipes made of C1220 phosphorus deoxidized copper

Do not use the following tools that have been used with the conventional refrigerants.

Tools that must be used exclusively with R410A.

Only use specified parts.

Importance of using specified parts for installation and relocation.

Use a vacuum pump with a reverse-flow-check valve.

Requirement for vacuum pump with a reverse-flow check valve.

Before Installing the Unit

Do not install the unit in a place where there is a possibility of flammable gas leak.

Safety precaution regarding flammable gas locations.

Do not use the unit in an unusual environment.

Before the Test Run

Turn on the unit at least 12 hours before the test run.

Do not turn off the power immediately after stopping the unit.

Do not operate the unit without panels and safety guards in their proper places.

Safety requirement to operate the unit with panels and guards for protection.

Do not touch the refrigerant pipes with bare hands during and immediately after operation.

Safety warning against touching refrigerant pipes due to temperature extremes.

Do not operate switches with wet hands to avoid electric shock.

Do not operate the unit without air filters.

1 Read Before Servicing

[1] Items to Be Checked

[2] Necessary Tools and Materials

[3] Piping Materials

[6] Brazing

[7] Airtightness Test

[8] Vacuuming

[9] Vacuum Drying

[10] Changing Refrigerant

Guidelines for charging R410A in liquid state.

[11] Remedies to be taken in case of a refrigerant leak

Guidance on adding refrigerant after a leak.

2 Restrictions

[1] Electrical Work & M-NET control

Guidelines for electrical work and M-NET control wiring.

[3] Examples of system connection

[4] Restrictions on Refrigerant Piping Length

Guidelines for refrigerant piping length and connection methods.

8 Test Run

[1] Check Items before Test Run

Pre-test run checks for refrigerant leaks, power, and wiring.

[2] Test Run Method

Step-by-step procedure for conducting a test run using the remote controller.

[4] Adjustment and Judgment of Refrigerant Amount

Methods for adjusting and judging refrigerant levels based on symptoms.

[5] Refrigerant Volume Adjustment Mode Operation

Procedure for entering and performing refrigerant volume adjustment.

9 Troubleshooting

[1] Check Code List

List of checking codes and their corresponding error content for diagnosing faults.

[2] Responding to Error Display on the Remote Controller

Troubleshooting steps for errors displayed on the remote controller.

[4] Troubleshooting of Principal Parts

Detailed troubleshooting for key components like pressure sensors and valves.

[5] Refrigerant Leak

Procedures for finding and repairing refrigerant leaks in piping.

[6] Compressor Replacement Instructions (only P450-P650 types)

Step-by-step instructions for replacing the compressor.

[8] BC controller service instruction

Service instructions for the BC controller and its components.