Check List - Liebert DM Series User Manual

16 Chapter 2 Mechanical Installation
Total length of extended liquid pipe (m) = total length of liquid pipe (m) - 5m

2.9 Check List

1. Proper clearance for service access is maintained around the AC unit.
2. The equipment is placed vertically and mounting fasteners are fastened.
3. The pipes between the indoor unit and outdoor unit are completed. The quick connector valves of the indoor unit
and outdoor unit are fully opened.
4. Condensate pump is installed (if required).
5. Drain pipe is connected.
6. Water supply pipe is connected to the humidifier (if required).
7. All pipe connectors are tight.
8. After installation, foreign materials in and around the equipment are removed (such as shipping materials,
construction materials, tools, and so on)
9. Rotate the fan blades by hand, and the fan rotate freely without unusual noise.
You can start electrical installation after confirming the preceding items.
Table 2-6 Adding refrigerant amount per meter of liquid pipes with different ODs
Liquid pipe OD (inch)
3/8
1/2
5/8
3/4
7/8
1-1/8
New Liebert_DM Series Air Conditioner User Manual
Adding refrigerant amount per meter (kg/m)
0.060
0.112
0.181
0.261
0.362
0.618