Table 2. Steam Line Material; Table 3. Recommended Material And Size For Steam Run - Nortec NH Series Installation Manual

Table 1.
Unit Size
NH-005
NH-010
NH-020
NH-030
NH-050
NH-075
NH-100
NH-150
NH-200
* Use one inch copper steam line for longer runs.
** Use two inch copper steam line for longer runs.
Notes: 1. This table gives the maximum recommended steam run by unit size.
2. The use of steam line other then copper, stainless steel tube or Nortec supplied steam line will void the
warranty and may adversely effect the operation of the humidifier
3. The NH-150 and NH-200 are dual units.
Short Run < 10 feet (3m)
Long Run > 10 feet (3m)
Do not use plastic, steel, or black iron. Long runs affect accuracy of humidifier and its ability to quickly
respond to changes in demand when tight control is required.
Table 3. Recommended Materials and Sizes for Steam Runs
Unit Size
Steam Run
lbs/hr kg/hr ft
0-30 0-13 0-10
0-30 0-13 30+
0-30 0-13 0-10
0-30 0-13 30+
50-100 22-45 0-20
50-100 22-45 20+
50-100 22-45 0-20
50-100 22-45 20+
Options show in bold-italic font require that reducers be used at both ends. These extra large sizes are
to allow for better condensation removal in long steam runs. These sizes do not permit the use of hose
couplings to connect either humidifier or distributors.
Insulate steam lines with 1" pipe insulation.
Maximum Recommended Length of Steam Line
Steam Output Distance
5 lbs/hr
10 lbs/hr
20 lbs/hr
30 lbs/hr
50 lbs/hr 40 feet **
75 lbs/hr 50 feet **
100 lbs/hr 50 feet **
150 lbs/hr 50ft/cylinder **
200 lbs/hr 50ft/cylinder **
Table 2. Steam Line Materials
NORTEC Steam Line
yes
no
NOTE
Steam Line Material
m
0-3 Copper Tube
3+ Copper Tube
0-3 Stainless Steel Tube
3+ Stainless Steel Tube
0-6 Copper Tube
6+ Copper Tube
0-6 Stainless Steel Tube
6+ Stainless Steel Tube
NOTE
Possible Loss
8 feet 1.0 lbs/hr
15 feet 1.5 lbs/hr
20 feet * 2.0 lbs/hr
25 feet * 2.5 lbs/hr
4.0 lbs/hr
5.0 to 10.0 lbs/hr
5.0 to 10.0 lbs/hr
5.0 to 10.0 lbs/hr
5.0 to 10.0 lbs/hr
Copper Tube (Potable)
yes
yes
Steam Line Description
0.750 in MED-L Tubing (0.875 inch OD)
1.0 inch MED-L Tubing (1.125 inch OD)
0.875 inch Tube x 0.049 inch thick
1.125 inch Tube x 0.049 inch thick
1.500 in MED-L Tubing (1.625 inch OD)
2.0 inch MED-L Tubing (2.125 inch OD)
1.750 inch Tube x 0.065 inch thick
2 inch Tube x 0.065 inch thick
Steam Line Size
3/4
3/4
3/4
3/4
1 ½"
1 ½"
1 ½"
1 ½" cyl
1 ½" cyl
Stainless Steel Tube
(RO or DI)
yes
yes
10-10
Page 14
2008-08-28