Nortec EL SERIES, Installation, Operation And Maintenance Manual

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18
Installation
2584597_B_EN_1705 Nortec EL/RS Outdoor
5.2.3 Exterior Wall
Figure 7:
9
OFF
ON
1
2
3
5
6
10
8
7
15 in (380 mm) min.
ground clearance
11
12
14
4
13
Typical Installation on an Exterior Wall (medium size unit shown)
1 Pipe chase (steam line)
2 External fused disconnect switch (supplied by others)
3 Pipe chase (drain lines). See Note 1 below.
4 Pipe chase (water supply line)
5 Drain line (freeze protection valve), 3/8 in (9.5 mm) I.D. See Note 2 below.
6 Air gap funnel. See Note 3 below.
7 Drain line (main) – 1-3/16 in (30 mm) I.D. See Note 2 below.
8 Shutoff valve (supplied by others)
9 Filter, 5 μm (optional, but recommended)
10 Union fitting (supplied by others)
11 3-way normally-closed valve, or normally-open and normally-closed valves (supplied by others). See Note 4 below.
12 Water supply line, minimum 1/2 in (13 mm). See Note 5 below.
13 Mounting bar (supplied –
×
2 for small unit,
×
3 for medium/large unit) secured to an exterior wall. See Note 6 below.
14 Mounting bracket (
×
2 for small,
×
3 for medium/large unit) secured to back of humidifier