Trane 22 Series User Manual

All indoor units are individually connected to ports at the outdoor unit. (As shown below)
Refrigerant Piping Between the Indoor and Outdoor Units
Charging Instructions
4TXM2218 4TXM2221 4TXM2224 4TXM2230 4TXM2236 4TXM2242
ft m ft m ft m ft m ft m ft m
Maximum total length
(a+b+c+d+e)
66 20 197 60 230 70 246 75 246 75 246 75
Maximum length to any
single indoor unit (Lx)
33 10 66 20 82 25 82 25 82 25 82 25
Minimum length to any
single indoor unit
10 3 10 3 10 3 10 3 10 3 10 3
Maximum height
difference between
outdoor unit and any
indoor unit *(H2)
33 10 33 10 49 15 49 15 49 15 49 15
Maximum height
difference between indoor
units (H2)
33 10 33 10 25 7.5 25 7.5 25 7.5 25 7.5
Maximum total pipe length
before adding charge is
required
33 10 98 30 131 40 131 40 131 40 131 40
Minimum total pipe length
before removing charge is
required
33 10 49 15 66 20 82 25 98 30 98 30
oz/ft g/m oz/ft g/m oz/ft g/m oz/ft g/m oz/ft g/m oz/ft g/m
Amount of R410-A to add
or remove
0.22 20 0.22 20 0.22 20 0.22 20 0.24 20 0.24 20
Note: Refer to diagram on page 19.
• If any refrigerant ports are not connected to indoor units, please tighten the cap to seal off the
port. Paired ports are labeled A, B, C, D, and E.
• During the connection of the indoor unit and the refrigerant pipe, never pull any joints of the
indoor unit by force, otherwise the pipes may crack which would then result in leakage.
• The refrigerant pipe should be supported by brackets, don’t let the unit withstand the weight
of the pipe length. If the piping connection size of the outdoor unit does not match the piping
connection size of the indoor unit, use the piping connection dimension of the indoor unit. Use
a connection joint that will accommodate the transition.
• Each pipe should be labeled to tell which indoor system it belongs to avoid mistaken or
inaccurate piping connections.
18
22 Series Multi-Zone

Trane 22 Series Specifications

General

Brand	Trane
Model	22 Series
Category	Air Conditioner
Language	English