Vent Piping
32 CVHH-SVX001A-EN
Note: Graphic labels (shown above) are used for CE
application only.
• Route the vent-line piping so that it discharges
outdoors in an area that will not spray refrigerant on
anyone. Position the vent line discharge at least
4.572 meters (15 feet) above grade level and at least
6.096 meters (20 feet) from any building opening.
Provide a vent line termination that cannot be blocked
by debris or accumulate rainwater.
• Provide a drip leg on the vent-line (see
Figure 20,
p. 34
). Provide a standard 1/4-in. FL x 1/4-in. NPT,
capped refrigerant service valve to facilitate liquid
removal.
• Consult local regulations and codes for any additional
relief line requirements.
NOTICE:
Proper Refrigerant Vent Line Termination!
Failure to properly terminate a refrigerant vent line
could result in equipment damage. Improperly
terminating a refrigerant vent line could allow rain to
enter the line. Accumulated rainwater could cause the
relief device to malfunction; or, in the case of a rupture
disk, the rainwater pressure could cause the disk to
rupture, allowing water to enter the chiller.
NOTICE:
Equipment Damage!
Trane assumes no responsibility for equipment damage
caused by insufficient drainage of the drip leg. All vent-
lines must be equipped with a drip leg of sufficient
volume to hold the expected accumulation of water
and or refrigerant. The drip leg must be drained
periodically to ensure that it does not overflow and
allow fluid to flow into the horizontal portion of the
vent-line.
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