Nortec SE Series User Manual
Page 21
Installation | 18
Table 6: Maximum Recommended Length of Steam Line
Unit
Size
Steam Output
.
lb/hr (kg/hr)
Steam Outlet and
Line Size
.
Copper (SST)
Maximum
Length
.
ft (m)
Possible Loss
.
lb/hr/ft (kg/hr/m)
Possible Loss at
Max. length
lb/hr (kg/hr)
50
50
(23)
1 1/2
(1 3/4)
37
(11)
0.11
(0.16)
4
(2)
100
100
(45)
1 1/2
(1 3/4)
90
(27)
0.11
(0.16)
10
(4.5)
175
175
(80)
3
(3)
90
(27)
0.16
(0.24)
14
(6.5)
250
250
(114)
3
(3)
180
(55)
0.16
(0.24)
28
(13)
375
375
(170)
4
(4)
180
(55)
0.22
(0.33)
39
(18)
525
525
(239)
4
(4)
220
(67)
0.22
(0.33)
48
(22)
750
750
(341)
2X 4
(4)
260
(79)
0.44
(0.66)
114
(52)
1050
1050
(477)
2X 4
(4)
260
(79)
0.44
0.66)
114
(52)
NOTE:
See Table 7 for equivalent length of common fittings.
Table 7: Equivalent Length of Some Common Fittings
Tube
Diameter in.
90 Degree
Elbow ft (m)
45 Degree
Elbow ft (m)
Side Outlet Tee
ft (m)
Gate Valve
ft (m)
Globe Valve
ft (m)
1 1/2 or 1 3/4
3.5
(1)
1.75
(0.5)
7
(2.1)
0.8
(2.4)
34
(10)
3
5
(1.5)
2.5
(0.75)
11
(3.3)
1.1
(3.1)
54
(16)
4
8
(2.4)
4
(1.2)
15
(4.5)
1.6
(0.5)
80
(24)
Figure 13: Condensate Traps
Note: Condensate should not be routed to a sink used frequently by personnel. Route to
a floor drain or equivalent. Condensate normally cools in traps but is still hot. A SAM-e or
larger steam line generates more condensate and water may not cool in the trap. A drain
water cooler option may be installed if required by code.
12 in. (30 cm)
min drop to
top of ‘P’ Trap
P Trap
min 8 in.
(20 cm)
plus duct
static pressure
Tee is same size
as steam line
Use a full size tee, not a 90
degree elbow for vertical
to horizontal transitions.
‘P’ Traps Use:
- NORTEC 0.375 in condensate hose .
- 1/4 in Med-L copper tubing, or
- 0.375 in stainless steel tubing
Condensate drains must be sloped down.
Route to humidifier fill cup if possible.