Panasonic ECOi 3 Way Manual de instalación descargar pdf (Pagina 11)

Table 1-10-2 Necessary Amount of Refrigerant Charge Per Outdoor Unit

Further charge a certain amount listed below in addition to the amount of refrigerant charge.

U-72MF1U9

U-72MF1U9E

U-96MF1U9

U-96MF1U9E

42 oz/unit 42 oz/unit

1-9. System Limitations

Table 1-11 System Limitations

Max. No. allowable connected outdoor units 3

Max. capacity allowable connected outdoor units

288,000 BTU/h (24 ton, 84.4 kw)

Max. connectable indoor units 40*¹

Max. allowable indoor/outdoor capacity ratio 50 – 130 %

*1: In the case of 16 ton (type 192,000 BTU/h) or smaller units, the number is limited by the total capacity of the connected indoor

units.

1-10. Installation Standards

Relationship between A/C units and refrigerant tubing

Common solenoid valve kit

●

Multiple indoor units under group control can utilize a solenoid valve kit in common.

●

Categories of connected indoor unit capacities are determined by the solenoid valve kit.

Type of solenoid valve kit Total capacity of indoor units (BTU/h)

160 19.000 < Total capacity < 54.600

56 7.500 < Total capacity < 19.000

●

If the capacity range is exceeded, use 2 solenoid valves connected in parallel.

Outdoor unit Outdoor unit Indoor unit

Suction tube

Discharge tube

Liquid tube

Balance tube

Suction tube

Discharge tube

Liquid tube

Gas tube

Liquid

tube

4-tube layout 3-tube layout 2-tube layout

Solenoid

valve kit

Indoor unit

Room

Hallway

Indoor unit

Room

Indoor unit

Room

Hallway

Indoor unit

Room

Solenoid

valve kit

Solenoid

valve kit

● Install the solenoid valve kit 98 ft. or less from the indoor unit.

● In quiet locations such as hospitals, libraries, and hotel rooms, the refrigerant noise may be somewhat noticeable. It

is recommended that the solenoid valve kit be installed inside the corridor ceiling, at a location outside the room.

Desirable Undesirable

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Panasonic ECOi 3 Way Manual de instalación Pagina 11

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