16
CRUV INSTALLATION, OPERATION, AND MAINTENANCE MANUAL
Important:
Failure to follow the recommendations in this
section can result in excessive back pressure on
the humidifi er. This will result in unacceptable
humidifi cation system performance such as
leaking gaskets, blown water seals, erratic
water level control, and spitting condensate
from dispersion tubes.
mc_060210_0843
Interconnecting piping requirements
INSTALLATION
Table 16-1:
Maximum steam carrying capacity and length of interconnecting steam hose, tubing and pipe*
Steam hose
1
Copper or stainless steel tubing
Hose I.D.
Maximum capacity
Maximum length
2
Tubing size
Maximum capacity
3
Maximum developed length
4
inches
DN
lbs/hr
kg/h
ft
m
inches
DN
lbs/hr
kg/h
ft
m
1½
40
150
68
10
3
1½
40
150
68
20
6.1
2
50
250
113
10
3
2
50
220
100
30
9.2
1. When using steam hose, use DriSteem steam hose for best
results. Field-supplied hose may have shorter life and may cause
foaming in the evaporating chamber resulting in condensate
discharge at the dispersion assembly. Do not use steam hose for
outdoor applications.
2. Maximum recommended length for steam hose is 10' (3 m).
Longer distances can cause kinking or low spots.
3. Insulate tubing to minimize loss of capacity and effi ciency.
4. Developed length of tubing equals measured length plus 50% of measured
length, to account for fi ttings.
Longer tubing lengths are possible at capacities lower than listed maximums.
Consult factory.
Note: Capacities and lengths in this table are based on total maximum pressure drop in hose or tubing of 5" wc (1250 Pa)
mc_091410_1050-VM
• The steam outlet on the humidifi er is sized to the output of the humidifi er.
DO NOT use interconnecting piping with an inside diameter smaller than
the humidifi er steam outlet.
• See the maximum steam carrying capacities and maximum piping lengths
in Table 16-1.
• See the steam loss data in Table 17-1.
• See Figures 18-1 and 19-1 for interconnecting tubing and pipe
pitch requirements for single tube applications. See Table 21-1 for
interconnecting tubing and pipe pitch requirements for Rapid-sorb
applications.
• If the humidifi er must be located higher than the dispersion assembly, use
the recommended installation shown in Figure 15-1.
• For single tube applications, see the capacities in Table 19-1.
Dispersion:
