System Installation Illustration - Liebert DM Series User Manual

6 Chapter 2 Mechanical Installation

Note
1.
2.
3. *: Check valve and traps are optional and not supplied by Emerson. But they are recommended for normal system operation
and easy maintenance. They should be installed on site by technicians.
4. +: Solenoid valve is a part of extended piping kit.
Actual cooling capacity
Liebert_DM series

2.3.2 System Installation Illustration

All equipment must be installed vertically. The Liebert_DM AC is available in two installation modes: outdoor unit
installed higher than indoor unit and indoor unit installed higher than outdoor unit. See Figure 2-2 for details.
Outdoor unit
Liquid pipe (not be
exposed to sun)
Outdoor unit
: Factory piping.
: Field piping (by technicians).
7.5kW unit
12.5kW unit
Liquid pipe (not be exposed to sun)
Trap
Sealed
Sealed
Figure 2-2 Installation illustration
New Liebert_DM Series Air Conditioner User Manual
Table 2-1 Standard pipe sizes
Pipe length (m)
5
5
Protection
Isolataion
tube
floor
Discharge pipe (slope)
1:200
Outdoor unit above indoor unit
Protection tube
Discharge pipe (slope)
1:200
Isolation floor
Insulation
material
Indoor unit above outdoor unit
Discharge pipe OD
1/2" (12mm)
5/8" (16mm)
Indoor unit
Humidifier canister water
supply pipe (to water tap)
Insulation Floor Condensation water
material drain pipe (to outdoor)
1:200
Indoor unit
Humidifier canister water
supply pipe (to water tap)
Condensation water
Floor
drain pipe (to outdoor)
1:200
Liquid pipe OD
3/8" (10mm)
1/2" (12mm)