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Ver 2_en_2022-06-27
Assembly Instructions
Envistar Flex
11 CONNECT DRAINAGE, WATER TRAP
• All drainages must be connected to separate water traps, which after these can be
connected to a common drain.
• Use separate drainage and water traps for negative pressure and positive pressure.
For instructional videos see
IV Produkt’s order portal:
Water trap site-built assembly
Water trap prefabricated MIET-CL-04 assembly.
For Thermocooler HP and EcoCooler size 100-1280:
• On ThermoCooler HP, two individual water traps
are attached.
• On ThermoCooler HP and EcoCooler, drainage
connects underneath.
11.1 Connect water trap MIET-CL-04 (accessories)
MIET-CL-04 must not be used with outdoor version, in case of un-
der-pressure. Heating cable pulled through drainage lines and water trap
causes the ball not to seal.
Underpressure (P-)
Overpressure (P+)
00071
1
P
max
= -900 Pa (-90 mmVp)
P
max
= +400 Pa (+40 mmVp)
ø 32 mm
2
2
ø 32 mm
1
3
Figure: Water trap (accessory)
1. Outlet (connected to drain)
2. Cup (always mounted upwards)
3. Ball (inside pipe) is removed with overpressure
11.2 Connect water trap (site built)
• Fill the water trap with water before starting the unit.
• For each additional 100 Pa (over 1000 Pa), H₁ and H₂ are increased by 10 mm.
Underpressure (P-)
Overpressure (P+)
00072
P
= -1000 Pa (-100 mmVp)
H1 = 100 mm
H2 ≥ 50 mm
(≥ 0,5 x H1)
1
1
P
= +1000 Pa (+100 mmVp)
H1 ≥ 100 mm
(≥ 1 x H2)
H2 = 100 mm
Figure: Water trap (site-built)
1. Outlet (connected to drain)