■Concealed Duct Type (U Type)
●This air conditioner is usually installed above the ceiling so that the indoor unit and ducts are not visible. Only the air intake and air outlet ports are visible from below.
●The minimum space for installation and service is shown in Fig.
●It is recommended that space is provided
●Fig.
U | Table |
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| Unit: in. (mm) |
| Type | 7, 12, 18 | 24 | 36 |
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| A (Length) | |||
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| Number of duct flanges | 2 | 3 | 4 |
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| A (Suspension bolt pitch) | min. | ||||||||
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| 32 |
| Indoor unit |
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27/- |
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min. | 22 |
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| Air outlet duct flange | min. |
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Fig.
Electrical component box
Inspection access
Refrigerant tubing
min.
Unit: in.
Table |
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| Unit: in. |
Dimension | A | B |
| C | D | E | F | G | H | I | J |
| K | No. of holes | |
Type |
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| L | M | |||||||||||
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7, 12, 18 | – |
| 8 | 12 | |||||||||||
⋅ 3) |
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24 | 12 | 16 | |||||||||||||
⋅ 5) | ⋅ 1) | ||||||||||||||
36 | 16 | 18 | |||||||||||||
⋅ 6) | ⋅ 2) |
31/32
| 13/32 |
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| Refrigerant tubing joint (liquid tube) | |||||
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(O.D.) |
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| 13/32 |
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| 13/32 |
| Refrigerant tubing joint (gas tube) | |||||
23/31 | (Hole) |
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| Bottom drain port (O.D. | |||||||||
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| Upper drain port (O.D. | ||||
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| 32 |
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| 11 |
| Suspension lug |
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| I | J | K | J |
| I |
| Power supply outlet | |||||
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| 3/4 |
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| A (O.D.) |
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| 3/4 |
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| Fresh air intake port | ||||
ionsdimenginopengn) |
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| H (Duct suspension bolt pitch) |
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| Flange for the flexible air outlet duct | ||||||
| G (Ceiling opening dimension) |
| Tube cover |
| 31/32 | ||||||||||
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| Electrical component box | ||||||
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| (Hole) |
| Flange for the air intake duct | ||||
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| (Option or field supply) |
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(Ceili |
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| 1/332 | /3132 | ||
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| B |
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| 3 |
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pitch) |
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| (Hole) |
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| 10 | |||
nspeSus( ion bolt |
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| Inspection access |
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| 9 | ||
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| (Field supply) |
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| 32 |
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| 2311/ |
| 31/32 |
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| 31/ |
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| D |
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| (Suspension bolt pitch) |
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| 32 | 3- |
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| E | E | E | F |
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| 4 | Inspection access panel | |||
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| Ceiling |
Unit: in.
Fig.
40