Page 8 • DRI-STEEM XT Series Electrode Steam Humidifier Installation, Operation, and Maintenance Manual
Supply water and drain piping
Supply water quality
XT Series humidifiers use normal tap water or softened water to
generate humidification steam. Water conductivity must be within
the range of 125 to 1250 μS/cm (which, in many cases, is roughly
equivalent to 3.4 to 36.3 grains/gallon). Demineralized water cannot
be used because it is not conductive. Do not use heated supply water
because unheated supply water is required for drain water tempering.
WARNING!
Drain piping surface may be hot. Touching
or contact with hot pipe may cause severe
personal injury.
Figure 8-1:
Field piping overview for models XT-10, XT-20, XT-30, XT-50, XT-75, and XT-100
OM-7362
Steam vapor hose; may also use tubing or
pipe. See Table 22-1 for maximum piping
lengths. Tubing or pipe must be grounded.
Fill valve (with screen)
Continuous copper
water supply line;
water pressure must
be between 25 psi
and 80 psi (175 kPa
and 550 kPa)
Shock arrester
recommended
to reduce water
hammer, by installer
Install plumb
¾" (DN20) metallic drain piping. If
piping run is over 10' (3 m) increase
pipe to 1¼" (DN32).
1" (25 mm) air gap required
Spill funnel. Plumb to floor drain
Refer to governing codes for drain pipe size and
maximum discharge water temperature. Offset
humidifier from spill funnel to prevent flash steam
from rising into the humidifier.
Adapter
Supply valve, by installer
Hose and clamps
3/8" (DN10) O.D. copper; compression fitting on fill valve
Inlet strainer,
by installer
Pitch 1/8”/ft (1%)
towards drain
XT_IOM_Jan_2008.pdf 10 11/19/2009 10:13:34 AM