Lennox FLEXAIR FAC 085, Инструкция по применению

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Application Guide /FLEXAIR-AGU-1505-E
Standard
BASIC AIRFLOW CONFIGURATIONS
Unless speci fi ed otherwise when ordered, FLEXAIR rooftops
are shipped with down fl ow supply and return con fi guration.
Units can be con fi gured before shipment with the required
air fl ow con fi gurations to suit the building needs.
AIR SOCK CONTROL
A standard feature in FLEXAIR , EC fan regulation allow the air
socks to be progressively fi lled with air on start up. It takes one
minute to go from 0% of air to Nominal air fl ow rate
Rooftop
Sealing
Roofcurb
Thermal insulation
400 mm minimum
2.8- AIRFLOW CONFIGURATIONS AND ROOFCURBS
2- OPTIONS DESCRIPTION
ROOFCURBS
Non adjustable non assembled roofcurb.
A sturdy mounting frame designed for single package units
providing an automatic weatherproof sealed rooftop installation.
This roofcurb is shipped knocked down and must be assembled
on site.
Adjustable roofcurb.
This adjustable and assembled roofcurb is made of galvanized
steel with 2.5 mm. This adjustable roofcurb is designed to be
installed in roofs with slopes up to 4 to 5% in all directions,
enabling
FLEXAIR to be compatible with most roof pro fi les.
Down fl ow roofcurbs are the easiest and the cheapest way to install
packaged air conditioning systems to a single volume building.
The frame can be secured directly to the roof structure thanks
to its built in adjustable
fl anges and sealing liner returns
Multidirectional roofcurb
This option is a required when customer wants to have horizontal
return and horizontal supply on the same side.
It is also required with the power exhaust fan or gravity exhaust
damper options combined with horizontal return
fl ow con fi guration.