To Next PageTo Next PageHow to fix serial communication error on Mitsubishi Electric Air Conditioner?
If you are experiencing a serial communication error with your Mitsubishi Electric Air Conditioner, check the communication connections and reset the system.
How to fix remote controller sensor failure in Mitsubishi Electric PUHY-P350?
If the remote controller sensor fails on your Mitsubishi Electric Air Conditioner, check and replace the remote controller sensor if needed.
What to do if float switch connector is disconnected in Mitsubishi Electric PUHY-P350 Air Conditioner?
If the float switch connector is disconnected in your Mitsubishi Electric Air Conditioner, re-connect the float switch connector.
How to fix remote controller board failure (nonvolatile memory error) in Mitsubishi Electric Air Conditioner?
If the remote controller board fails due to a nonvolatile memory error in your Mitsubishi Electric Air Conditioner, reset or replace the remote controller board.
General| Brand | Mitsubishi Electric |
|---|---|
| Model | PUHY-P350 |
| Category | Air Conditioner |
| Language | English |
Lists the tools and materials required for installing and servicing the unit.
Details copper pipe types, radial thickness, and pressure ratings for R410A.
Provides instructions for storing refrigerant piping, emphasizing indoor storage and sealing.
Specifies the use of ester oil, ether oil, or alkylbenzene to coat flares and flanges.
Outlines brazing procedures, emphasizing the use of non-oxidized solder and careful handling.
Details the procedure for air tightness testing using nitrogen and leak detection.
Explains the process of vacuum drying, including pump requirements and evacuation time.
Describes refrigerant charging procedures, emphasizing liquid phase charging.
Provides steps for replenishing refrigerant in case of a leak.
Compares chemical and pressure characteristics of R410A with conventional refrigerants.
Discusses the specific refrigerating machine oil used in HFC systems and contaminant effects.
Summarizes compatible indoor units for different outdoor units and standard combinations.
Details high COP combinations of outdoor and indoor units, including capacity and count.
Specifies cable types and maximum allowable lengths for M-NET and remote controller wiring.
Explains switch settings for various units and M-NET address settings.
Provides a table for M-NET address settings based on system configuration.
Details the connection of the power supply switch connector (CN41) on the outdoor unit.
Describes the factory settings and function of the centralized control switch (SW2-1).
Explains how to select the temperature detection source: built-in sensor or optional sensor.
Details various start-stop control settings for indoor units using dipswitches SW 1-9 and 1-10.
Covers miscellaneous settings like cooling-only setting for indoor units.
Explains control types using input-output signals, including DEMAND and low-noise modes.
Provides examples of typical system connections for MA remote controllers.
Details wiring methods for transmission lines, centralized control, and MA remote controllers.
Illustrates system connection with multiple LOSSNAY units and manual address setup.
Details wiring methods for transmission lines, centralized control, and MA remote controllers.
Shows sample control wiring for group operation with multiple outdoor units.
Illustrates system control wiring with a system controller and power from an outdoor unit.
Provides sample control wiring for systems with a system controller and indoor-outdoor transmission line.
Details allowable lengths for various pipe sections based on operation and height difference.
Illustrates front views of outdoor units and shows refrigerant circuit diagrams.
Details the components within the outdoor unit's control box, including warnings.
Provides diagrams and explanations of the outdoor unit's control board and M-NET board.
Compares the functions and specifications of MA and ME remote controllers.
Explains how to perform group operations and interlock settings using the ME remote controller.
Details the procedure for setting up LOSSNAY interlocks with indoor units via the MA remote controller.
Explains how to use the built-in temperature sensor on the remote controller for temperature detection.
Provides detailed electrical wiring diagrams for different outdoor unit models.
Illustrates the electrical wiring diagram for the transmission booster unit.
Presents refrigerant circuit diagrams for various outdoor unit models.
Details the main parts and their functions within the outdoor unit's refrigerant circuit.
Explains the functions and factory settings of dipswitches on the control board and other units.
Describes the control methods for outdoor units, including startup sequence and initial control.
Provides flowcharts for indoor and outdoor unit operation modes.
Lists essential checks before performing a test run on the unit.
Provides a step-by-step guide for performing a test run using the MA remote controller.
Explains refrigerant characteristics and their impact on operating conditions.
Guides on symptoms of incorrect refrigerant charge and how to adjust it.
Details the procedure for adjusting refrigerant amount using specific switch settings.
Lists common symptoms that are considered normal operation.
Provides standard operating data (reference) for cooling and heating operations.
Lists all error codes, their definitions, and the units affected.
Provides guidance on how to respond to various error codes displayed on the remote controller.
Explains how to investigate transmission wave shapes and noise interference.
Details troubleshooting steps for principal parts like sensors, valves, and fans.
Guides on how to identify and repair refrigerant leaks in various scenarios.
Provides step-by-step instructions for removing and replacing the compressor.
Explains how to interpret and troubleshoot errors using the outdoor unit's LED display.
Explains how to read the LED display on the service monitor for unit status and information.
