Engineering Manual

Duct Flange for Fresh-air Intake PAC-SH65OF-E
How to Use / How to Install
1. Checking Parts
(This box contains the installation manual and the following parts)
When attaching to main unit
2. Attaching Duct Flange for External Air Input
1Duct flange
Part
Shape
Qty
1
2Insulator
1
3Screws(M4×10)
3
1) Punch an opening for the duct flange.
<When attaching to main unit>
• Cut the slit of the ø100 cut-out hole to which the duct flange is to be attached.
<When attaching to Multi-functional casement>
• Remove the ø100 knockout hole to which the duct flange is to be attached.
2) Paste insulator 2 on the duct flange 1 (see the figure on the right).
3) Use 3 screws 3 to attach duct flange 1 (see the figure below).
Note:
1. When attaching to the main unit, be sure to remove the insulator that is pasted on the location of main unit (shown in the figure below).
2. When attaching to Multi-functional casement, be sure to set the concave portion of duct flange 1 toward the grille attachment surface
when attaching it. (If the duct flange is attached to a location other than the specified one, the grille cannot be attached.)
3. When external air is input directly through the main unit, intake-air volume should be 5% or less of indoor unit air volume.
4. When external air is input through the Multi-functional casement, intake-air volume should be 20% or less of indoor unit air volume.
5. To input the external air, the duct fan and dust collecting filter to prevent drawing in dust and other particles are necessary.
For details, see “Fresh air intake volume & static pressure characteristics” in the P series DATA BOOK.
6. When external air is input into the main unit, the operation noise can be larger.
When attaching to Multi-functional casement
Refrigerant
pipe portion
Drain pipe
portion
Grille surface to which flange is attached
Duct flange 1
Insulator 2
Main unit
Refrigerant
pipe portion
Drain pipe
portion
Main unit
Paste insulator 2 so that there is
no gap at joints.
Insulator to be removed
• For the B type 4-way cassette
• For the E type 4-way cassette
Duct flange attachment portion
Insulator to be removed
Duct flange attachment portion
Arrow views (4 portions) Duct flange attachment portions
Duct flange 1
Set the concave portion (grille setscrew escape section)
toward the grille surface to which flange is attached.
Screws 3
Screws 3
Duct flange 1
Screws 3
Duct flange
attachment portion
Grille surface to which
flange is attached
Duct flange
attachment portion
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