Mitsubishi Electric CITY MULTI PUHY-P200YEM-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-P200YEM-A Specifications

General

Brand	Mitsubishi Electric
Model	CITY MULTI PUHY-P200YEM-A
Category	Air Conditioner
Language	English

Summary

PRECAUTIONS FOR DEVICES THAT USE R407C REFRIGERANT

Storage of Piping Material

Guidelines for proper storage of refrigerant piping materials to prevent contamination and damage.

Piping Machining

Instructions for preparing and machining refrigerant piping, including oil application and quantity.

Brazing

Airtightness Test

Vacuuming

Charging of Refrigerant

Guidelines for charging R407C refrigerant in liquid state, including cylinder identification and methods.

Refrigerant Circuit Diagram and Thermal Sensor

PUHY-P200/250/315YEM-A

PUY-P200/250/315YEM-A

PURY-P200/250YEM-A

PUHY-200/250/315YEM(K,C)-A

PUY-200/250/315YEM-A

Electrical Wiring Diagram

PU(H)Y-(P)200·250·315YEM(K,C)-A

Detailed electrical wiring diagram for PU(H)Y-(P)YEM(K,C)-A models, showing connections and components.

PURY-P200·250YEM-A

Electrical wiring diagram for PURY-P200/250YEM-A models, illustrating system wiring and component connections.

Standard Operating Data

PU(H)Y-P200·250YEM-A

PU(H)Y-P315YEM-A

PURY-P200·250YEM-A

PU(H)Y-200·250·315YEM(K,C)-A

PUHY-250YEMC-A, PUHY-250YEMK-A, PUHY-250YEMC-A, PU(H)Y-315YEM-A, PUHY-315YEMK-A, PUHY-315YEMC-A

Function of Dip SW and Rotary SW

Outdoor unit

Details on the function of DIP switches (SWU, SW1, SW2, SW3, SW4) for the outdoor unit and their settings.

Indoor unit DIP SW1, 3

Setting of DIP SW2

Setting of DIP SW4 Setting of DIP SW5

TEST RUN

Before Test Run

Checkpoints and cautions to be observed before performing a test run on the unit.

Caution at inverter check

Specific safety warnings and procedures for checking the high-voltage inverter section of the outdoor unit.

Test Run Method

Operation procedure

Step-by-step procedure for conducting a test run, including button presses and checks for air flow and temperature.

GROUPING REGISTRATION OF INDOOR UNITS WITH M-NET REMOTE CONTROLLER

Switch function

Group registration of indoor unit

Procedure for registering indoor units with the remote controller for group operation.

Method of retrieval/confirmation

Method of deletion

Deletion of information on address not existing

CONTROL

Control of Outdoor Unit

Details on outdoor unit control, including initial processing, starting control, and bypass/capacity control.

Control of BC Controller

Explanation of the control logic for SVA, SVB, SVC solenoid valves and LEV opening based on operation mode.

Operation Flow Chart

REFRIGERANT AMOUNT ADJUSTMENT

Refrigerant Amount and Operating Characteristics

Key relationships between refrigerant amount and system performance characteristics for accurate adjustment.

Adjustment and Judgement of Refrigerant Amount

Methods for diagnosing and adjusting refrigerant levels based on symptoms and self-diagnosis.

Refrigerant Volume Adjustment Mode Operation

Procedure

Step-by-step procedure for operating the refrigerant volume adjustment mode using outdoor unit switches.

TROUBLESHOOTING

[1] Principal Parts

Identification and troubleshooting of major system components like pressure sensors and their configurations.

[2] Treatment of Inverter Output Related Troubles

Troubleshooting steps and countermeasures for various inverter output errors and related component issues.

[3] Trouble Measures when Main Power Breaker Tripped

Procedures for diagnosing and resolving issues when the main power breaker trips, including inverter circuit checks.

Self-diagnosis and countermeasures depending on the check code displayed

Intermittent fault check code

List of intermittent fault codes and their preliminary error contents for diagnosing system issues.

PREPARATION, REPAIRS AND REFRIGERANT REFILLING WHEN REPAIRING LEAKS

[1] Location of leaks: Extension piping or indoor units (when cooling)

Procedure for locating refrigerant leaks in extension piping or indoor units during cooling mode operation.

[2] Location of leaks: Outdoor unit (Cooling mode)

Steps to locate refrigerant leaks in the outdoor unit during cooling mode operation.

[3] Location of leaks: Extension piping or indoor units (Heating mode)

Procedure for locating refrigerant leaks in extension piping or indoor units during heating mode operation.

[4] Location of leaks: Outdoor unit (when heating)

Steps to locate refrigerant leaks in the outdoor unit during heating mode operation.