Ed in steam lines, And condensate return, Age 16 – Nortec NH-EL Series User Manual
Page 19: Steam lines and condensate return instructions
Installation | 16
Steam Lines and Condensate Return Instructions
The following instructions must be followed for installation of steam lines for ASD, BSD, CSD,
SAM-e, and remote blower packs. Failure to use material recommended in
Table 7, exceeding maximum recommended length in Table 7, or failure to follow any other
steam line installation instructions will result in improper operation and could void the warranty.
Table 7: Recommended Steam Line Material*, Maximum Length, Losses
NH-EL
Maximum Steam
MED-L
Stainless
Possible Steam Losses
Model
Line Length
Copper
Steel
(based on 1” insulated copper pipe)
ft
(m)
Tube
Tube
lb/hr/ft
(kg/hr/m)
5
7
(2)
3/4
0.875 X 0.049W
0.06
(0.09)
10
12
(3.5)
20
17
(5)
30
22
(6.5)
50
43
(13)
1 1/2
1.75 X 0.065W
0.11
(0.16)
75/150**
47
(14)
100/200**
50
(15)
Oversized Steam Line (Use for longer steam runs)***
5
14
(4)
1
1.125 X 0.049W
0.06
(0.09)
10
24
(7)
20
34
(10)
30
44
(13)
50
86
(26)
2
2.0 X 0.065W
0.11
(0.16)
75/150**
94
(28)
100/200**
100
(30)
Nortec Steam Hose
5-30
10
(3)
Pt No 1328810 (7/8”)
0.1
(0.15)
50-200**
10
(3)
Pt No. 1328820 (1 3/4”)
0.15
(0.22)
Note: * The use of steam line other than copper, stainless steel tube or Nortec supplied steam line will void the warranty and may
adversely affect the operation of the humidifier.
** Use one steam line per cylinder for NH-EL 150-200 humidifiers. Do not combine lines except at distributor using a Nortec adapter
designed for that purpose and only if humidifiers operate in parallel.
*** These diameters require a reducer at humidifier and steam distributor connection.
Danger:
The NH-EL is an atmospheric humidifier that will only operate properly when its steam
distribution system is installed so that it provides no significant backpressure.
Installing the NH-EL in such a way that backpressure can develop during operation
could result in serious injury or damage to property.