19
ULTRA-SORB MP INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Piping
Condensate drainage for all applications
Since Ultra-sorb panels operate with virtually
zero internal pressure, condensate cannot be
piped directly into a return main. It must be
piped to a floor drain or into a condensate
pump and returned to the steam source.
To prevent steam from escaping down the drain
line, install a water seal or steam trap in the
drain line. The water seal must be of sufficient
height to contain the pressure in the humidifier.
See trap
dimensions
in Table 6-1
3/4" pipe
thread (DN20)
drain
3/4" (DN20) copper
1" (25 mm) air gap
Open drain required.
Locate air gap only in spaces with adequate
temperature and air movement to absorb flash
steam; otherwise, condensation may form on
nearby surfaces. Refer to governing codes for
drain pipe size and maximum discharge water
temperature.
STEAM FROM AN ELECTRODE-TYPE EVAPORATIVE HUMIDIFIER
TUBING
Standard steam hose connects to DriSteem electrode steam humidifier cylinders
(XT series) and to the Ultra-sorb steam inlet directly or with a stainless steel
adaptor. Hose cuffs are also available for connecting tubing. If specified when
ordered, DriSteem can provide a threaded connection on the Ultra-sorb steam
inlet. For threading pipe connection options, see DriSteem’s DriCalc sizing and
selection software, available at www.dristeem.com.
Hose and clamps can be used for connections at the steam cylinder and at the
Ultra-sorb. Due to the difference between the tubing O.D. and the steam hose
I.D., multiple hose clamps may be required.
STEAM HOSE PITCH
Support steam hose to prevent sags or low spots, and pitch at least 2"/ft (15%)
toward the Ultra-sorb panel.
TUBING PITCH
• Pitch at least 1/8" /ft (1%) toward the Ultra-sorb so condensate and steam
flow in same direction.
• 90° elbows are not recommended. Use two 45° elbows one foot apart as
Failure to follow the above recommendations may result in faults at the
electrode-type humidifier. This may lead to erratic or stopped operation. When
the distance between the Ultra-sorb and the evaporative humidifier exceeds 20
feet (6 m), consult the factory for special recommendations.
• Thin wall tubing will heat up with less start up heat loss than heavy wall
pipe.
• Insulate the tubing to reduce the loss in output caused by condensation in
the tubing.
OM-7587
Electrode-type humidifier
90° long sweep or two 45° elbows
Pitch toward Ultra-sorb*
Steam hose, tubing, or pipe
* Pitch steam hose, tubing, or pipe
toward Ultra-sorb:
2"/ft (15%) when using steam hose.
1/8"/ft (1%) when using tubing or pipe.
INSTALLATION
FIGURE 19-1: CONDENSATE DRAINAGE
FIGURE 19-2: ULTRA-SORB MODEL MP IN A HORIZONTAL AIRFLOW WITH
ELECTRODE-TYPE HUMIDIFIER
