This “close to the wall” application minimizes exposed tubing and wiring and reduces the space for children to run around the unit. This will help to avoid possible damage to the tubes or wiring and/or personal injury.
10" Min.
Service Access 
18" Min.
10"
Min. 
Service Access
Close to the wall application assures free, unobstructed air to the other two sides. In more confined application spaces, such as corners, provide a minimum 10” clearance on all air inlet sides. Allow 18” minimum for service access to the compressor compartment and controls.
The top of the unit should be completely unobstructed. If units are to be located under an overhang, there should be a minimum of 36” clearance and provisions made to deflect the warm discharge air out from the overhang.
LOCATION
If unit is to be located under an overhang, there should be a minimum of 36” clearance and provisions made to deflect the water discharge air out from the overhang. If the outdoor unit is mounted above the air handler, the maximum lift should not exceed 70’ (suction line). If air handler is mounted above condensing unit, the lift should not exceed 50’ (liquid line.). Refer to Figure 3 and Table 1 for maximum refrigerant line lenghts.
OUTDOOR UNIT
PITCH SUCTION LINE TOWARD OUTDOOR
UNIT 1/2" FOR EVERY 10' OF LINE
18" Min.
10" 
10" 
OUTDOOR UNIT
70' MAX.
LIQUID LINE
SUCTION LINE OIL TRA PS
WHEN INDOOR UNIT IS 4
FEET OR MORE BELOW
OUTDOOR UNIT
INDOOR UNIT ABOVE OR
LEVEL TO OUTDOOR UNIT
INDOOR UNIT
LIQUID LINE
ADDITIONAL SUCTION LINE OIL TRA P FOR EA CH 20' RISE OF PIPE
INDOOR UNIT
FIGURE 1
10" Min.
Service Access
18" Min.
INDOOR UNIT BELOW |
|
OUTDOOR UNIT |
|
| 8 ' |
INVERTED LOOP |
|
INDOOR UNIT |
|
OUTDOOR UNIT |
|
LIQUID LINE | 50' MAX. |
| |
SUCTION LINE |
|
FIGURE 3
REFRIGERANT LINE LENGTH (Ft)
Cond |
|
| |||||
Unit |
|
| Line Diameter (In. OD) |
| |||
Tons | Suct | Liq | Suct | Liq | Suct | Liq | |
1 | 1/2 | 5/8 | 1/4 | 3/4 | 3/8 | 3/4 | 3/8 |
| 2 | 3/4 | 3/8 | 3/4 | 3/8 | 3/4 | 3/8 |
2 | 1/2 | 3/4 | 3/8 | 3/4* | 3/8 | 7/8 | 1/2 |
10"
Min. 
10"
.
10"
.
Service Access
18" Min.
3 | 3/4 | 3/8 | 3/4** | 3/8 | 7/8 | 1/2 |
3 1/2 | 3/4 | 3/8 | 7/8*** | 3/8 | 1 1/8 | 1/2 |
4 | 7/8 | 3/8 | 1 1/8 | 3/8 | 1 1/8 | 1/2 |
5 | 7/8 | 3/8 | 1 1/8 | 3/8 | 1 1/8 | 1/2 |
*7/8" required for full ratings
**1 1/8" required for full ratings
TABLE 1
The condensing unit must be mounted on a solid, level foundation, i.e.
| FIGURE 2 |
3 | |
|
construction can support the weight and that proper
06/04
