Trane Technologies Climate Changer UCCA

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Coil Piping and Connections

CLCH-SVX009J-EN 41

Water Coil Piping

Figure 47 and Figure 48 illustrate typical water coil piping

configurations.

Water coils are self-venting only if the water velocity

exceeds 1.5 feet per second (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:

1. Install an air vent in the top pipe plug tapping of the

return header.

2. When the return line rises above the top of the coil,

vent from the top of the return header horizontally to

the return piping.

Figure 47. Typical piping for one-row water coil

Drain

Airflow

Level

Water return main

Water supply main

Figure 48. Typical piping for 2 - 8-row water coils

Water return main

Water supply main

Drain

Airflow

Pitch down

Trane Technologies Climate Changer UCCA - Page 41