Trane R-410A Installation Manual page 11

2.
3.
Installing the connection pipe
1.
2.
Table 2.
Note: First, connect the connection pipe to indoor unit, then to outdoor unit; pay attention to the
MS-SVN25A-EN
Take out the piping from body case, wrap the piping electric wire, water pipe with tape and
put them through the piping hole.
Hang the mounting slots of the indoor unit on the upper tabs of the rear panel and check if it
is firm enough.
Align the center of the piping flare with the relevant valve.
Screw in the flare nut by hand and then tighten the nut with spanner and torque wrench refer
to the following.
Tightening Torque Table
Hex nut Diameter Tightening torque (N-m)
6mm - 1/4"
9.5mm - 3/8"
12mm - 1/2"
16mm - 5/8"
piping bending, do not damage the connection pipe; the joint nut couldn't tighten too
much, otherwise it may cause leakage.
15-20
31-35
50-55
60-65
Installation
11