Lennox DUCTAIR II Installation, Operating And Maintenance page 7

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INSTALLATION
Installing the dust proof net and canvas air passage
1.
Install the dust proof net according to the installation manual;
2.
Install the canvas air passage underneath the dust proof net .
Pipe connection
The static pressure in the outside of the unit is 39 .2Pa (maximum 98Pa), the length of the air pipe attached is determined by this
parameter .
Size 12 installation location
Enough room for installation and maintenance .
Refrigerant
pipes
500mm
Air return box
The ceiling is horizontal and it can afford the weight of the indoor unit .
The air inlet and outlet are not impeded and does not affected by outdoor air too much .
The air flow can reach every part of the room.
The connecting pipe and drainpipe can be easily extracted out .
There is no direct radiation from heat source .
Size 12 The position fo hanging bolts
Enough room for installation and maintenance .
25
Air outlet sketch map
915
870
DUCTAIR II - 0808-E
Air outlet
1 0 0 m m
Air outlet (on side)
715
870
1 0 0 0 m m
Duct
Air outlet
Air return box
Refrigerant piping joint
(gas side)
148
Fresh air inlet
>500mm
2 5 0 m m
200mm
Air return box
< 3 m
380
220
175
Water outlet Ø25
Refrigerant piping joint
(gas side)
Φ100
>500mm
Ceiling
• 5 •

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