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DRI-STEEM GTS Humidifier Installation, Operation, and Maintenance Manual Page 41
Vapor hose, tubing or
pipe. Insulate tubing
and hard pipe to reduce
steam loss. Do not
insulate vapor hose.
90° long sweep
or two 45°
elbows
GTS humidifier
6" (152 mm)
recommended
Water seal
5" (127 mm)
Pitch
(see Notes)
1" (25 mm)
air gap
Open drain required. See Note 1 below.
Condensate drain tube,
by installer, minimum ¾"
(DN20); must be suitable
for 212 °F (100 °C) water
½" (DN15) O.D. condensate
drain tube; pitch ¼"/ft (2%)
Pitch tube toward
drain 1/8"/ft (1%)
3/8" (M10)
mounting nut
Maximum capacity of dispersion tube:
1½" dia. (DN40): 56.8 lbs/hr
(25.8 kg/h)
2" dia. (DN50): 85.2 lbs/hr
(38.6 kg/h)
Duct
¼" (DN8) pipe thread
Figure 41-1:
Single tube dispersion with condensate wasted to floor drain
Notes:
1 Locate air gap only in spaces with adequate temperature and air movement to absorb flash steam, or condensing on nearby surfaces my occur.
Refer to governing codes for drain pipe size and maximum discharge water temperature.
2 Assemble multiple dispersion tubes or use a Rapid-sorb or Ultra-sorb dispersion assembly where necessary to accommodate maximum humidifier load.
3 The smallest GTS humidifier steam outlet is 2" (DN50). Install an adaptor manifold if using multiple 1½" (DN40) dispersion tubes. See also Table 37-1.
4 Pitch vapor hose, tubing or pipe toward humidifier:
– 2"/ft (15%) when using vapor hose
– ½"/ft (5%) when using 1½" tubing or pipe
– ¼"/ft (2%) when using 2" tubing or pipe
5 Dashed lines indicate provided by installer
D i s p e r s i o n : S i n g l e t u b e a n d
m u l t i p l e t u b e ( c o n t i n u e d )
OM-1212a
Secure and seal
escutcheon plates
Table 41-1:
Dispersion tube and condensate drain
escutcheon plate dimensions
for 1½" (DN40) tube for 2" (DN50) tube
inches mm inches mm
A 1.51 38 2.03 52
B 3.25 83 5.00 127
C 0.75 19 0.75 19
D 3.25 83 3.25 83
Dispersion tube plate
Condensate drain plate
Figure 41-2:
Dispersion tube and condensate drain
escutcheon plates
OM-351c
B
D
B
D
A
(diameter)
C
(diameter)
Installation
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