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Stick insulation material 4 at indoor hole
Figure 2
Use screw 2 (M4X12, 4 P iece s) to in stall flange at the h ole, and t hen stick insulation ma terial 3.
Screw 2
M4 12,4 pieces
（
×
Ins tall Duct
1. Conne ct the duct to the flange. (the flange is as sembl ed with th e inter fa ce of duc t.)
2. Afte r c onnec tion, us e th e ethyl ene tap e (provid ed on field ) t o wra p the j oint to prev en t air-leak ag e.
Flange
Note:
1. All ducts must be completely heat-insulat ed.
2. The followi ng phenomenon ar e not allowed when installing duc t:
A）Bend too much
Wron g
Put t he in sulati on ma teria l 4 on the in terfa ce
of th e hole as s hown in Fig ure 4 , then stick
on th e ins ide an d sur face of the boar d. Th e
inter face of the hole can n ot ha ve ga p.
Insulation Material(Inside)
Edge
Abo ut 10m m
En sure th e interfa ce of in sulation materia l 4 clos ely cont acts wit h
th e inside insulati on mate rial and the boa rd.
Flan ge 1
Insulati on M ate rial 3
）
：φ
(the rated diameter
75)
Wrap the jo int to pre vent air -leakage
φ
Ai rproof Ad hesive Tape
B
Too man y bende r
）
Installa tion Type 1
Boar d
Insu lation M a terial
F ig ur e 3
75 Du ct on fi e ld
（
）
Wrong
15
Installa tion Typ e 2
Stick insulation material at the
opening part of the board
Boar d
Insulat ion Mate rial
F lange 1
Screw 2
M4
12,4 pieces
（
×
）
Ins ulation M aterial 3
C) diameter reduce
Wro ng
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