Chapter 2 Mechanical Installation 17
DataMate 3000 Series Air Conditioner User Manual
20mm(3/4”) hose barb connection to drain the steam generating humidifier canister.
The drain line should be the full size of the drain connection.
Note
The drain line must be trapped outside the unit. The pipe material must be rated for the
temperature of boiling water. Use galvanized steel, PP-R or other suitable material for the
drain line.
Connecting humidifier water supply line(if applicable)
Connect the humidifier (shown in Figure 2-11) and the water supply tube with a
cable through the cutout shown in Figure 2-10. The units supplied with the optional
humidifier package have a 20mm(3/4 in.) tube fitting connection for water inlet.
Supply pressure range is 0.7 kgf/cm
2
to 10kgf/cm
2
. A shut-off valve should be
installed in this line to isolate the humidifier for maintenance.
2.6.4 Connecting Refrigerant Lines
Connecting discharge line
Connect the discharge line between the evaporator (refer to Figure 2-11) and the
condenser (refer to Figure 2-12) through the cutout of the evaporator shown in
Figure 2-10.
Note
Pitch the discharge line a minimum of 5mm per meter (1:200). Use a heat-isolation material
to pack around the tubes if the discharge line goes through the area controlled by the air
conditioner (including under isolation floor).
1. Removing plate
2. Refrigerant line connection
Discharge line
DMC07
line O.D. 1/2" connection O.D. 3/4"(20mm)
DMC12
line O.D. 5/8" connection O.D. 7/8"(22mm)
Lquide line
DMC07
line O.D. 3/8" connection O.D. 5/8"(16mm)
DMC12
line O.D. 1/2" connection O.D. 3/4"(20mm)
Figure 2-12 Piping interface inside condenser
