Contents, Safety precautions | Mitsumi electronic PUHY-P-TGMU-A

1.	Safety precautions		6
	1.1. Before installation and electric work		6
	1.2. Precautions for devices that use R410A refrigerant		6
	1.3.	Before installation	7
	1.4.	Before installation - electrical work	7
	1.5. Before starting the test run		7
2.	About the product		7
3.	Specifications		8
4.	Confirmation of parts attached		8
5.	Space required around unit		8
6.	Lifting method		8
7.	Installation of unit		9
	7.1.	Installation	9
8.	Refrigerant piping installation		9
	8.1.	Caution	9
	8.2.	Refrigerant piping system	9

9. Additional refrigerant charge		10
9.1.	Calculation of additional refrigerant charge	10
9.2.	Precautions concerning piping connection and valve
	operation	10
9.3.	Airtight test, evacuation, and refrigerant charging	11
9.4.	Thermal insulation of refrigerant piping	11
10. Wiring		12
10.1. Caution		12
10.2. Control box and connecting position of wiring		12
10.3. Wiring transmission cables		12
10.4. Wiring of main power supply and equipment capacity		13
11. Test run		14
11.1. The following phenomena do not represent trouble
	(emergency)	14
12. Information on rating plate		15

1. Safety precautions

1.1. Before installation and electric work

sBefore installing the unit, make sure you read all the “Safety precautions”.

sThe “Safety precautions” provide very important points re- garding safety. Make sure you follow them.

Symbols used in the text

Warning:

Describes precautions that should be observed to prevent danger of injury or death to the user.

Caution:

Describes precautions that should be observed to prevent damage to the unit.

Symbols used in the illustrations

: Indicates an action that must be avoided.

: Indicates that important instructions must be followed.

: Indicates a part which must be grounded.

: Beware of electric shock. (This symbol is displayed on the main unit label.) <Color: yellow>

Warning:

Carefully read the labels affixed to the main unit.

Warning:

•Ask the dealer or an authorized technician to install the air conditioner.

-Improper installation by the user may result in water leakage, electric shock, or fire.

•Install the unit at a place that can withstand its weight.

-Inadequate strength may cause the unit to fall down, resulting in injuries.

•Use the specified cables for wiring. Make the connections securely so that the outside force of the cable is not applied to the terminals.

-Inadequate connection and fastening may generate heat and cause a fire.

•Prepare for strong winds and earthquakes and install the unit at the speci- fied place.

-Improper installation may cause the unit to topple and result in injury.

•Always use an filter and other accessories specified by Mitsubishi Elec- tric.

-Ask an authorized technician to install the accessories. Improper installation by the user may result in water leakage, electric shock, or fire.

•Never repair the unit. If the air conditioner must be repaired, consult the dealer.

-If the unit is repaired improperly, water leakage, electric shock, or fire may result.

•Do not touch the heat exchanger fins.

-Improper handling may result in injury.

•If refrigerant gas leaks during installation work, ventilate the room.

-If the refrigerant gas comes into contact with a flame, poisonous gases will be released.

•Install the air conditioner according to this Installation Manual.

-If the unit is installed improperly, water leakage, electric shock, or fire may result.

•Have all electric work done by a licensed electrician according to “Elec- tric Facility Engineering Standard” and “Interior Wire Regulations”and the instructions given in this manual and always use a special circuit.

-If the power source capacity is inadequate or electric work is performed im- properly, electric shock and fire may result.

•Securely install the outdoor unit terminal cover (panel).

-If the terminal cover (panel) is not installed properly, dust or water may enter the outdoor unit and fire or electric shock may result.

•When installing and moving the air conditioner to another site, do not charge it with a refrigerant different from the refrigerant specified on the unit.

-If a different refrigerant or air is mixed with the original refrigerant, the refrig- erant cycle may malfunction and the unit may be damaged.

•If the air conditioner is installed in a small room, measures must be taken to prevent the refrigerant concentration from exceeding the safety limit if the refrigerant should leak.

-Consult the dealer regarding the appropriate measures to prevent the safety limit from being exceeded. Should the refrigerant leak and cause the safety limit to be exceeded, hazards due to lack of oxygen in the room could result.

•When moving and reinstalling the air conditioner, consult the dealer or an authorized technician.

-If the air conditioner is installed improperly, water leakage, electric shock, or fire may result.

•After completing installation work, make sure that refrigerant gas is not leaking.

-If the refrigerant gas leaks and is exposed to a fan heater, stove, oven, or other heat source, it may generate noxious gases.

•Do not reconstruct or change the settings of the protection devices.

-If the pressure switch, thermal switch, or other protection device is shorted and operated forcibly, or parts other than those specified by Mitsubishi Elec- tric are used, fire or explosion may result.

•To dispose of this product, consult your dealer.

•The installer and system specialist shall secure safety against leakage according to local regulation or standards.

-Following standards may be applicable if local regulation are not available.

•Pay special attention to the place of installation, such as a basement, etc. where refrigeration gas can accumulate, since refrigeration is heavier than the air.

•With Fresh air intake type, the installation site must be carefully chosen because outdoor air can directly blow into the room when the thermostat is turned off.

-Direct exposure to outdoor air may have harmful effects on people or food.

1.2.Precautions for devices that use R410A refrigerant

Caution:

•Do not use existing refrigerant piping.

-The old refrigerant and refrigerator oil in the existing piping contains a large amount of chlorine which may cause the refrigerator oil of the new unit to deteriorate.

-R410A is a high-pressure refrigerant and can cause the existing piping to burst.

•Use refrigerant piping made of phosphorus deoxidized copper and cop- per alloy seamless pipes and tubes. In addition, be sure that the inner and outer surfaces of the pipes are clean and free of hazardous sulphur, oxides, dust/dirt, shaving particles, oils, moisture, or any other contami- nant.

-Contaminants on the inside of the refrigerant piping may cause the refriger- ant residual oil to deteriorate.

PUHY-P-TGMU-A specifications

The Mitsumi Electronic PUHY-P-TGMU-A is a cutting-edge multi-split air conditioning system that adopts advanced technologies to enhance indoor comfort and energy efficiency. Designed for both residential and commercial use, this unit stands out due to its innovative features and remarkable performance capabilities.

One of the key characteristics of the PUHY-P-TGMU-A is its ability to effectively cool or heat multiple spaces simultaneously. With a capacity range that meets the demands of diverse environments, this system can seamlessly cater to larger installations. This makes it ideal for office buildings, retail spaces, or homes with multiple rooms requiring climate control.

The unit is equipped with inverter technology, which allows for variable speed operation of the compressor. This not only results in significant energy savings but also provides a stable temperature and optimal comfort levels. The inverter technology adjusts the power consumption based on the cooling or heating requirements in real-time, thereby reducing energy costs and increasing overall efficiency.

Another outstanding feature is the advanced air filtration system. The PUHY-P-TGMU-A incorporates a combination of pre-filters and HEPA filters that effectively reduce airborne particles, allergens, and pollutants. This ensures that the air circulated within the environment remains clean and healthy, making it an excellent choice for those with respiratory sensitivities.

In addition, the unit comes with smart connectivity options. Users can control the system remotely through a smartphone app, allowing for seamless adjustments to settings from anywhere at any time. This smart technology not only enhances convenience but also enables users to monitor energy consumption and adjust schedules to maximize efficiency when spaces are unoccupied.

Thermal management technologies integrated into the PUHY-P-TGMU-A ensure rapid and effective heat exchange, further improving performance. Its sleek design and compact dimensions allow for flexible installation, making it suitable for a variety of architectural styles.

The PUHY-P-TGMU-A is not only about performance; it emphasizes quiet operation too. The design minimizes noise levels, ensuring that the atmosphere remains tranquil even during peak operation.

In summary, the Mitsumi Electronic PUHY-P-TGMU-A combines sophisticated technology, energy efficiency, and user-friendly features to create a versatile and highly effective climate control solution. Whether for personal or business use, this multi-split air conditioning system proves to be an investment in comfort and innovation.

Mitsumi electronic PUHY-P-TGMU-A installation manual Contents, Safety precautions

Models: PUHY-P-TGMU-A

Contents

1. Safety precautions

PUHY-P-TGMU-A specifications