Installation Clearances; Drains - Lennox CMC 020S Installation, Operating And Maintenance Manual

2.- INSTALLATION

2.5.- INSTALLATION CLEARANCES

Clearance around the unit for service and maintenance
SERVICE SPACE
Space should be left free for access or servicing, to ease the installation of cables, drainage connections, electric installation and
cleaning fi lters, as well as easy access to the unit.
LOCATION
The unit can be installed outside. If it is installed, air entry and exit ducts should be fi tted. The unit should be assembled on bases
previously made and stood on absorbent and antivibrating material to avoid the vibrations being transmitted to the structure of the
building.

2.6.- DRAINS

All the indoor and outdoor sections of these units have a 3/4" steel threaded drain pipe welded to the condensation tray.
Drainage pipes will be fi tted for each tray through a siphon with a height
difference of 80 mm. to avoid drainage problems from the depression formed
by the fans. The pipes should have an inclination of 2% to ease drainage of
condensation.
Also slightly tip the unit (2%) toward the drainage side. Check that the condensation trays are clean and free from dirt and other debris
from the works and that water drains correctly.
1 m.
1 m.
1 m.
1 m.
20
UNIT
Mín. 80 mm.
2%
Inspection and cleaning stopper
2%