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From inside (document excerpt):
Air-Conditioners PUHZ-RP200, 250 YHA-A INSTALLATION MANUAL FOR INSTALLER For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner unit. English Contents Safety precautions . 2 Installation location 3 Transporting the unit 5 Installing the outdoor unit . 6 Installing the refrigerant piping . 7 Drainage piping work . 11 7. 8. 9.
10. 11. Electrical work Test run Special Functions System control (Fig. 10-1) Information on rating plate . Safety precautions s Before installing the unit, make sure you read all the “Safety precautions “. s This equipment does not comply with the relevant technical standard for the limitation of flicker and this may cause adverse effects on other electrical appliances. Please provide an exclusive circuit for the air conditioner and ensure, the max. impedance in this manual. Do not connect other appliances to this circuit. s Please report to or take consent by the supply authority before connection to the system. Warning: Describes precautions that must be observed to prevent danger of injury or death to the user. Caution: Describes precautions that must be observed to prevent damage to the unit. Warning: · The unit must not be installed by the user. Ask a dealer or an authorized technician to install the unit. If the unit is installed incorrectly, water leakage, electric shock, or fire may result. · For installation work, follow the instructions in the Installation Manual and use tools and pipe components specifically made for use with R410A refrigerant. The R410A refrigerant in the HFC system is pressurized 1.6 times the pressure of usual refrigerants. If pipe components not designed for R410A refrigerant are used and the unit is not installed correctly, the pipes may burst and cause damage or injuries. In addition, water leakage, electric shock, or fire may result. · The unit must be installed according to the instructions in order to minimize the risk of damage from earthquakes, typhoons, or strong winds. An incorrectly installed unit may fall down and cause damage or injuries. · The unit must be securely installed on a structure that can sustain its weight. If the unit is mounted on an unstable structure, it may fall down and cause damage or injuries. · If the air conditioner is installed in a small room, measures must be taken to prevent the refrigerant concentration in the room from exceeding the safety limit in the event of refrigerant leakage. Consult a dealer regarding the appropriate measures to prevent the allowable concentration from being exceeded. Should the refrigerant leak and cause the concentration limit to be exceeded, hazards due to lack of oxygen in the room may result. · Ventilate the room if refrigerant leaks during operation. If refrigerant comes into contact with a flame, poisonous gases will be released. · All electric work must be performed by a qualified technician according to local regulations and the instructions given in this manual. The units must be powered by dedicated power lines and the correct voltage and circuit breakers must be used. Power lines with insufficient capacity or incorrect electrical work may result in electric shock or fire. After installation work has been completed, explain the “Safety Precautions, ” use, and maintenance of the unit to the customer according to the information in the Operation Manual and perform the test run to ensure normal operation. Both the Installation Manual and Operation Manual must be given to the user for keeping. These manuals must be passed on to subsequent users.