RECOMMENDED HEIGHT AND LENGTH
If the refrigerant piping is longer than the recommended length, or if the height difference between the indoor and outdoor unit is greater than recommended, the capacity will drop and the compressor could malfunction. Select an installation location that is within the recommended parameters.
(MAXIMUM PIPING LENGTH & HEIGHT RECOMMENDED)
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| 50 | Notes | ||
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| 23 |
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Cooling |
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capacity | Add |
| Not | Needed |
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7,500 to | charge |
| needed | (1) |
| recom- | 1/4" and | |
9,000 |
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| mended | 3/8” |
Btuh |
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Recommended height difference is 23 ft or less *Evacuate refrigerant lines
(1)An installation with a piping length of 23 ft. or less is desirable. If this is not possible, the maximum piping length can be extended to 50 ft. by charging the system with additional refrigerant. However, cooling and heating capacity will be reduced.
INSTALLATION METHOD
HOLE DRILLING: After deciding the method your unit will be installed, a hole to route the connecting tubes and wires to the outdoor unit is to be drilled on the wall. The hole must be lower than the point where the drainpipe attaches to the drain pan of the unit. It should also be slightly declined towards the outside.
•Additional charge volume = (piping length - 23 ft.) x 0.2 oz.
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| Piping length (feet) |
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| 33 | 55 | ||||
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Cooling |
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| Installation | Unit |
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| Piping | ||
capacity | Add |
| Not |
| Needed |
| not | |
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| Diameter | |||||
18,500 to | charge |
| needed |
| (2) |
| recom- |
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36,000 |
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| mended |
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Btuh |
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Recommended height difference is 23 ft or less *Evacuate refrigerant lines
(2)An installation with a piping length of 33 ft. or less is desirable. If this is not possible, the maximum piping length can be extended to 55 ft. by charging the system with additional refrigerant. However, cooling and heating capacity will be reduced.
•Additional charge volume = (piping length - 33 ft.) x 0.2 oz.