Trane Climate Changer T Series Installation Operation & Maintenance page 55

Water Coil Piping
Figure 40, Figure 41, and
illustrate typical water coil piping
configurations.
Type WA, 5A, 5W, D, K, W, UW, TT,
P ,2, P4, and P8 water coils are self-
venting only if the water velocity
exceeds 1.5 feet per second (fps) in
the coil tubes. Type UU, WD, and
5D water coils are self-venting only
if the water velocity exceeds
2.5 fps in the coil tubes. See the
unit submittals for coil water
velocity. If the water velocity is
below these minimums, vent the
coil by one of the following
methods:
• Install an air vent in the top pipe
plug tapping of the return
header.
• When the return line rises
above the top of the coil, vent
from the top of the return
header horizontally to the
return piping.
Note: T, ST, and TT coils are
designed with larger than
normal end tube sheet holes
to allow for maximum
expansion. Air leakage
around tubes should be
expected and handled by
capping over coil ends or by
sealing around tubes with a
pliable sealant such as
silicone.
For stacked coils, see typical
configuration in Figure
CLCH-SVX06A-EN • T-Series Climate Changer Air Handler IOM
Figure 40. Typical piping for type 5W one-row water coil
Figure 42
GV
Figure 41. Typical piping for type 5A, 5W two-row, K, W 3- to 12-row,
43.
AV
Drain
WD, D, and DD water coils
AV
Drain
Installation - Piping
GV
AV
TV
GV
GV
GV
AV
AV
MW
Water supply
main
Water
return main
55