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Carrier 40VD048-096A-7S-QEE 40VD048A-7S-QEE Manual De Instalación Y Operación página 17

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Installation Procedures
7. Cautions in Installation of Air Return duct & Exhaust duct
air outlet direction
flexible
connections
shall be used
between the
Top of the unit
unit and the
air duct
air return direction
Note: The air duct must be insulated to prevent condensation.
lt is recommended to use the air supply pipes, which can be anti condensation and absorb sound.
(purchased at local shops)
Complete the installation of the air supply pipes before fitting up the suspended ceiling.
Heat insulation should be made for the air supply pipes.
The special exhaust port should be arranged at the place where the air is distributed evenly.
An inspection hole should be left on the surface of the ceiling for future maintenance.
Only 40VD048A-7S-QEE has fresh air flanges
8. Connection of return air duct (setting back air return opening when leaving factory)
Remarks: ln installation, you can select the lower air return or back air return by adjusting the
location of the air inlet frame. Air return from bottom will influence the unit noise, so we suggest
you use rear return installation.
40VD048A-7S-QEE
indoor unit
electric
drainpipe return
air outlet
control box
pipe
1378
9. Install outlet flange
Install outlet flange basis the needs; the outlet flange is standard component; bolts are laid in the
accessories box.
40VD048A-7S-QEE
ceiling
Note: You can select not to connect with the flange. Instead of it, you can use the square plastic
air outlet (to be purchased by user)
side fresh air inlet of the unit
fresh air inlet in the middle
of the return duct
air pipe
1392
12
special exhaust port
positioning with bolt
air
40VD072A-7S-QEE 40VD096A-7S-QEE
indoor unit
electric
air outlet
control box drainpipe
pipe
1130
40VD072A-7S-QEE 40VD096A-7S-QEE
1005
ceiling
t
t
air supply
pipe
air
return
air pipe
298

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40vd072a-7s-qee40vd096a-7s-qee