Water Drain Connections
x Water Drain Specifications:
o Evaporation chamber water drain temperature: 60°C.
o Standard hydraulic fittings (supplied): a DN20 female compression fitting for the
evaporation chamber drain and a DN15 female elbow fitting for the pan drain.
x 2 hydraulic pipes (not supplied) must be placed underneath the humidifier and connected
to the drain pipes (see Illustration 31 - Water Supply and Drain Connections).
x Use DN20 and DN15 standard copper or stainless steel hydraulic pipes.
x It is recommended that the installed drain piping is rated for 100°C.
x Ensure that the drain pipe dimension is sufficient, especially if more than one humidifier is
evacuating into the same drain line.
x The minimum drain pipe gradient must be of 6.5mm per 300mm.
x The humidifier drain pipes do not require a drain trap and must be piped to an open drain.
x The main drain pipe must have a minimum diameter of DN40.
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