Nortec ME Control Installation - Manual (Page 30)

30 Installation
4.4.3 Water installation (external installation)
Stages
(box rows)
Connection layout
distribution hoses
2
2 1
4 2 1 3 5
3
2 1 3
4 2 1 3 5
4
4 2 1 3
4 2 1 3 5
5
4 2 1 3 5
4 2 1 3 5
Distribution hoses
ø15 mm (0.625")
constant slope
(no sagging)
Water supply push-fit
connector ø15 mm (0.625")
Feed through
(supplied)
Drain pipe ø28 mm (1.125")
with constant downslope
1...2 % (not supplied)
Shut-off valve
(supplied)
Drain trap (not supplied)
Drain trap height: Allow a height of 25 mm
(1") for every 250 Pa of duct pressure (e.g.
100 mm (4") for 1000 Pa duct pressure)
Pressure equalisation pipe
(mandatory, not supplied)
Open tundish (not supplied)
Important: the drain pipes must not touch the
tundish - allow air gap of min 20 mm (0.8" ).
AHU drain with drain trap (not supplied)
Drain trap height: Allow a height of 25 mm
(1") for every 250 Pa of duct pressure (e.g.
100 mm (4") for 1000 Pa duct pressure).
2...5 bar
Fig. 18: Water installation (external installation)
Drain pipe vent (mandatory,
not supplied), highest point
of vent tube must be above
max. water level of tank