43
STEAM INJECTION INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Second inlet
Level
DC-1208
Secure end of tube to AHU using
support bracket (0.421" dia.
[11 mm] holes in top, bottom,
and end of bracket)
12" (305 mm) min.
Mounting
bracket
Maxi-bank option field piping
MAXI-BANK HUMIDIFIER
From
steam
source
Header trap by installer (see
Note 9 on Page 39)
Same size as separator inlet
See Table 28-1
Separator
Separator trap
(See Note 8
3/4" pipe
thread
(DN20)
Dispersion tubes
(see Note 4 on Page 38)
Steam jacket piping
(See Note 6 on Page 38)
Factory-supplied header and
interconnecting piping
x
x
x
x
4" (100 mm) min.
4" (100 mm) min.
12" (305 mm) min.
Install strainer within 3'
(1 m) of humidifier (see
Note 4)
NOTES:
1. To avoid metal fatigue, allow for dispersion tube thermal expansion.
2. Dashed lines indicate provided by installer; right-hand discharge shown.
3. Dri-calc is DriSteem’s free sizing and selection software available at www.dristeem.com.
4. Steam valve and strainer sizes are provided by Dri-calc (Note 3).
5. See “Maxi-bank option piping notes” on Pages 38 and 39, and see Pages 14 and 15 for more
information about trap types and trap piping.
Isolation valve
(by others)
y (see y note above)
x (See Table
29-1 for
minimum tube
spacing)
y = 4½" (114 mm)
min. Center
assembly in duct.
See Note 10 on
Steam valve and
actuator (see Note 4)
mc_050511_1457
Steam jacket trap (see Note 8 on Page 39)
FIGURE 43-1: MAXI-BANK OPTION, TOTAL TUBE LENGTH GREATER THAN 45' (13.7 M) IN AN AHU
