Armstrong World Industries EHU-703, EHU-700 Series, EHU-701, EHU-704 manual Water, Total, Model unit

The mounting surface should be a wall capable of supporting the maximum humidifier weight. The maximum operating weight is:

Model unit	Water		Total
701	60 Ibs. + 20 Ibs.	=	80 Ibs.
703	83 Ibs. + 30 Ibs.	=	113 Ibs.
704	95 Ibs. + 60 Ibs.	=	155 Ibs.

The location chosen should be inside with a minimum ambient temperature of 40°F. and a maximum of 100°F. The humidifier should not be mounted on hot surfaces.

The location should be close enough to the air duct so that the length of steam pipe is as short as possible. A length of 10 ft. or less is ideal; the maximum recommended length for running distribution piping is 40 feet of equivalent run. The number of piping elbows in the installation should be minimized (see Pages 7 and 8 for more information.)

The unit should have ready access to electrical service, a supply of ordinary tap water, and a sewer into which the drain line can discharge hot waste water. (Figure 5-1)

NOTE: Please contact factory for duct applications offering high static pressure (>4" WC).

Figure 5-1

5