Vertiv Liebert DME22 - Connecting Drain Piping of Indoor Unit

Vertiv | Liebert® DM | User Manual 39
Mechanical Installation
(Amplified View of 'C')
C
No. Description No. Description
1
Discharge line shut o service angle valve
(3/4”-19 mm straight pipe, 1-1/16”- 14 UNF
Connector thread)
2
Liquid line shut o service angle valve (5/8”-
16 mm straight pipe, (7/8”- 14 UNF Connector
thread)
Figure 2-25 Refrigerant Pipe Connectors of Outdoor Unit (DMC22 and DMC27)
• Connecting liquid pipe
Connect one end of the liquid pipe to the liquid line shut o angle valve of the indoor unit shown in Figure 2-18 to
Figure 2-22, and the other end to the liquid line shut o angle valve of the outdoor unit shown in Figure 2-23 to Figure 2-25.
2.6.8. Connecting Drain Piping Of Indoor Unit
1. The indoor unit is provided with a copper condensate drain piping with 22 mm outer diameter to connect to the outdoor
drain pipe using the hose barb connector.
2. Connect one end of the drain pipe to the connector of condensate water drain pipe shown in Figure 2-18 to Figure 2-22.
Ensure, drain pipe must not be placed in position with freezing temperature (≤0 ºC). The drain pipe should be
the full size of the drain pipe connector.
• The drain pipe of the indoor unit equipped with a humidifier must be able to endure the 90 ºC water
temperature.
• Use galvanized steel pipe, aluminum-plastic composite pipe with hot water type or PP-R polypropylene
plastic pipe with hot water type as the drain pipe
D
Amplified View of ‘D’