14
Installation
2582302_C_EN_1611
Nortec EL
5.2.2
Typical Installation for Direct Room Humidification
Figure 5:
1
2
3
4
5, 6
7
8
9
10
11
12
Typical Installation for Direct Room Humidification
1 Blower pack, remote-mounted
2 Steam line (see Note 1 below)
3 Blower pack, built-on
4 High level On/Off humidistat (external safety chain)
5 Humidity sensor or humidistat (used for control of space humidity or high limit)
6 On/Off humidity control
7 Electrical disconnect, high voltage supply
8 Drain line (see Note 2 below)
9 Air gap with optional trap (see Note 3 below)
10 Water supply (see Note 4 below)
11
Condensate drain line (routed to floor drain, see Note 5 below)
12
Condensate drain connection through fill cup to steam cylinder (for remote blower pack)
Note 1:
The steam line should be as short as possible – the maximum length varies depending on unit
capacity and material used (refer to
Table 6 on page 28
). The steam line should have adequate upslope
(minimum 10°) /downslope (minimum 2°), without restrictions and with a condensate trap at the lowest
point. Steam traps are required every 15 ft (5 m) for long runs. The steam line must rise a minimum of
12 in (30 cm) straight up before running to the steam distributor. The minimum bend radius for steam
hose is 12 in (30 cm), or 5× the internal diameter for rigid pipes. Refer to
Table 6 on page 28
for steam
line recommendations.
