Ecoer EAHAEC-36 - 5.6 Refrigerant Pipe Installation; 5.6.1 Maximum length and drop height; 5.6.2 The procedure of connecting pipes

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SDi Decades Extreme Service Manual www.ecoer.com
May. 2023Manufacturer reserves the right to change specifications or designs without notice.
Ensure that the length of the refrigerant pipe, the number of bends, and the drop height between the indoor and
outdoor units meets the requirements shown in the following table.
Capacity (kBtu/h)
Max. Length (m/ft)
Max. Elevation (m/ft)
36~60
65/213
30/98.4
Caution:
1.The capacity test is based on the standard length and the maximum permissive length is based on the system
reliability.
2. Oil traps
-If oil flows back into the outdoor unit’s compressor, this might cause liquid compression or deterioration of oil
return. Oil traps in the rising gas piping can prevent this.
-An oil trap should be installed every 10m(32.8ft) of vertical suction line riser (≥36000Btu/h unit).
10m/32.8ft (≥36000Btu/h unit)
Indoor unit/ Outdoor unit
1.Choose the pipe size according to the specification table.
Indoor unit/ Outdoor unit
2.Confirm the cross way of the pipes.
3.Measure the necessary pipe length.
4.Cut the selected pipe with pipe cutter
Oblique Rough Warped
90°
5.6 Refrigerant Pipe Installation
5.6.1 Maximum length and drop height
5.6.2 The procedure of connecting pipes
Oil trap
Gas piping
Liquid piping
• Make the section flat and smooth.
10m/32.8ft (≥36000Btu/h unit)