15
ULTRA-SORB MP INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Pressurized steam application
INSTALLATION
PLACEMENT IN A STEAM APPLICATION
Notes:
1. Locate drain 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.
2. Dashed lines indicate provided by installer.
3. Steam supply line to unit and piping are not included.
4. Mount the Ultra-sorb Model MP vertically (for horizontal airflow only).
5. For pressurized steam applications provide a 10" (255 mm) minimum water seal. See Table 6-1.
6. Locate drain 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.
7. When mounting an Ultra-sorb in a duct, headers and flanges are mounted outside the duct.
8. 100% of the airflow must pass through the Ultra-sorb, which means that any openings surrounding it must be sealed. The blanked-off area below
the Ultra-sorb provides clearance height for water seals, and condensate piping connections.
9. Due to the pressure drop across the valve, the steam pressure at the header traps is minimal. Condensate must be drained.
10. Dispersion tubes are available at : 3" (76 mm), 4" (102 mm; for 2" diameter only), 6" (152 mm), 9" (228 mm), 12" (305 mm) centers.
11. Ultra-sorb humidifiers will be assembled, crated, and shipped intact in all sizes up to 93" (2360 mm) unit height. Ultra-sorb can be shipped
unassembled, by request, requiring field assembly.
12. Sizes are 12" to 144" (305 mm to 3658 mm) x 12" to 144" (305 mm to 3658 mm) in 1" (25 mm) increments.
Each Ultra-sorb humidifier is furnished with:
1. Type 304 stainless steel header/separator and dispersion tubes when shipped unassembled.
2. Hardware for connection of dispersion tubes to header when shipped unassembled.
3. Tube grommets for connection when shipped unassembled.
Each Ultra-sorb humidifier used with boiler steam is also furnished with:
1. One 3/4" NPT float and thermostatic trap (≤15 psi steam source) or an inverted bucket trap for steam main drip leg use (>15 psi).
2. Inlet "Y" strainer.
3. Normally closed steam valve with stainless steel parabolic plug and seat.
Install strainer within 3' (1 m) of Ultra-sorb
Face width
Water seal
(see Note 5)
Condensate header
1½" (38 mm)
flange
AHU width
Face
height
AHU/
Overall
height
¾" (DN20) pipe thread
Valve
From
pressurized
steam source
Open drain 1" (25 mm) air gap (see Note 1)
Tubelets
perpendicular to
airflow
OM-7839
FIGURE 15-1: MOUNTING ULTRA-SORB MODEL MP (PRESSURIZED STEAM APPLICATION SHOWN)
≥ 2"
(51 mm)
Blanked-off area
