Connection Pipe Requirement
11
22 Series Multi-Zone
Model
Connecting Pipe inch(mm)
Max. Pipe Length
ft (m)
Max height
difference
between
indoor unit and
outdoor unit
ft (m)
Max height
difference between
the lowest and
highest indoor unit
ft (m)
Liquid Gas
4TXM2218
1/4" (Φ 6.35) 3/8" (Φ 9.52)
66 (20)
33 (10) 33 (10)
4TXM2221 197 (60)
4TXM2224 230 (70)
49 (15) 25 (7.5)
4TXM2230
246 (75)
4TXM2236
4TXM2242
NOTICE
The maximum distance of the connection piping in both height and total length is provided in the
table below. Do not install these units in locations that exceed these specifications.
NOTES:
1. The connection pipes should be insulated with proper water-proof insulating material
2. Wall thickness of pipe 0.02-0.04 in (0.5-1.0 mm): bearing pressure 435 PSI (3.0 MPa).
3. Shorter connecting pipe lengths result in greater thermal efficiency, so it is preferable to reduce
connecting pipe lengths where possible.
4. Refer to the oil trap instructions for specific requirements when there is height difference
between the indoor and outdoor unit greater than 20 ft. (6m).
To Next Page
Loading...
Need help?
General
