14. Installation
14.1 Piping Length & Refrigerant Charge
The maximun allowable level and piping length
[Outdoor Unit]
7.5m
| It does not matter which unit is higher. |
A | Indoor Unit |
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B |
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C | 7.5m |
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Model | Standard Length | Max piping length each indoor unit |
| Max total | |||
[Outdoor Unit] |
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A, B, C, D | A | B | C |
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A2UC/H146FA0 | 7.5m | 15m | 15m | - |
| - | 30m(A+B) |
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A2UC/H186FA0 | 7.5m | 15m | 15m | - |
| - | 30m(A+B) |
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A3UC/H216FA0 | 7.5m | 15m | 15m | 15m |
| - | 45m(A+B+C) |
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A4UC/H306FA0 | 7.5m | 15m | 15m | 15m |
| 15m | 60m(A+B+C+D) |
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Refrigerant Charge
Indoor Unit Capacity | Pipe Size | Rated | Max | Additional | |
(Btu/h) | Gas | Liquid | Length | Length | Refrigerant |
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7k, 9k, 12k | 3/8"(9.52mm) | 1/4"(6.35mm) | 7.5m | 15m | 30g/m |
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18k, 24k | 1/2"(12.7mm) | 1/4"(6.35mm) | 7.5m | 15m | 30g/m |
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❋Extra refrigerant = (Extended length - Rated length) x Additional refrigerant
2004 Product Data 69
