TB 740-97-4
Connections of ducts to the dehumidification machine will be made with unions or slip joint connections which permit easy removal of
machine for servicing. A hair type humidistat will be set to maintain a 40 percent relative humidity, plus or minus 5 percent, within
the dehumidified area. The humidistat will be installed in the machinery house of the barge from which the moist air return duct goes
directly to the dehumidification machine. The humidistat will be connected to the dehumidification machine with No. 18, two
conductor, rubber-covered cable with suitable terminal connectors. Humidity sensing elements, with cable, will be installed as shown
on figure 26 or 27. One sensing element will be mounted in the blank used for introduction of the moist air return ducts on each
barge.
H-3