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10 - CONDENSATE DRAIN
These units are equipped with a condensate drain pan in the
indoor circuit, with a 1/2" M gas threaded plastic drain connection.
The pan is sloped towards the drain, but it is important to check
the leveling of the unit. A defective unit level can cause water
overfl owing.
This drain pan is removable for easy cleaning. It is important to
check that the drain is not clogged. The pan is secured to the unit
using 4 M6 Allen screws.
Optionally, this pan can be made of stainless steel for corrosion
protection.
Removable pan
Some options are equipped with a separate drain, 1/2" M gas
threaded plastic:
■ Cooling recovery circuit (BA and BB assemblies).
■ Heat recovery wheel module (BW and RW assemblies).
■ Gas burner (roofcurb).
With outdoor temperatures which are lower than 0ºC
the necessary precautions must be taken to prevent the
water in the drain ducts from freezing.
Important: the water drain pipe must
be provided with a siphon to avoid bad
smell and water spills.
10.1 - 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.
Condensates pan
in depression
Check the connection watertightness.
CONNECT SIPHON
METTRE SIPHON
PONER SIFON
V220014
Slight slope
5/1000
To drainage
Siphon drain
35
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