Nortec NH Series - Manual (Page 18)

15 | Installation
Steam Lines and Condensate Return
The following instructions must be followed for installation of steam lines for ASD, BSD, CSD,
SAM-e, and Remote Blower Packs. Failure to used material in Table 6 and Table 7 on page 16,
or failure to follow any other steam line installation instructions, will result in improper operation
and could void warranty.
Table 6: Recommended Maximum Length of Steam Line
NHRS
Unit
Size
Steam
Output
(lbs/hr)
Distance
ft (m)
Possible
Loss
ft (m)
Steam
Line
Size
010 10 15 (4.5) 2 (0.6)
1.5”
015 15 17.5 (5) 2.25 (0.7)
020 20 20 (6) 2.5 (0.8)
030 30 25 (7.5) 3 (0.9)
045 45 35 (10.5) 4 to 5 (1.2 to 1.5)
065 65 45 (13.5)
5 to 10
(1.5 to 3.0)
090 90 50 (15)
135 135 50/tank (15)
2 x 1.5”
180 180 50/tank (15)
NOTES:
1) This chart gives the maximum length of recommended steam line by unit size.
2) The use of steam line other than copper, stainless steel, or Nortec steam hose will void the
warranty and may cause adverse effects regarding the operation of the humidifier.
3) Nortec steam line shall only be used for steam line runs of 10 ft (3m) or less.
4) Long steam runs affect accuracy of humidifier and its ability to quickly respond to changes in
demand. When tight control is required, ensure steam line run is as short as possible.
5) NHRS 135 and 180 have two tanks.
Danger:
The NHRS 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 NHRS in such a way that backpressure can develop during operation
could result in serious injury or damage to property.