30
Check the connection watertightness.
With outdoor temperatures which are lower than 0ºC
the necessary precautions must be taken to prevent the
water in the drain ducts from freezing.
Siphon installation norms
Perform the assembly as per the scheme of the attached starting
diagram:
■ Pan in overpressure:
It is installed to avoid the access through the drain piping of
bad smells.
■ Pan in underpressure:
Besides the previous application, water must be sucked from
the pan:
- For the correct siphon design, the “A” height must be at
least twice that of the underpressure (mm.w.c) where the
condensate pan is placed.
- The drain piping must be slightly sloped to ease circulation
towards the drain.
- The original diameter of the piping must be respected. No
reduction can be made.
CONNECT SIPHON
METTRE SIPHON
PONER SIFON
V220014
10 - CONDENSATE DRAIN
Important: the water drain pipe must be
provided with a siphon to avoid bad smell
and water spills.
A
Condensates pan
in depression
A
Siphon drain
Slight slope
5/1000
To drainage
Some options are equipped with a separate drain, gas threaded
plastic:
■ Cooling recovery circuit (BA and BB assemblies): 1/2” M.
■ Rotary heat exchanger (BW assembly): 3/4” M.
■ Gas burner (roofcurb): 1/2” M.
Condensates drain
These units are equipped with a condensate drainage pan in the
indoor circuit, with a 3/4” M gas threaded plastic drain connection.
The pan is sloped towards the drain, but it is important to check
the levelling of the unit. A defective unit level can cause water
overfl owing.
It is important to check that the drain is not clogged.
This drain pan is removable in models 100 to 170. It is secured
to the unit using 4 M 6 Allen screws
Optionally, this pan can be made of stainless steel for corrosion
protection.
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