Eco Air CTBU-09HWFN1-M(C), Service Manual, Page: 82 / 219

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5.Please refer to the following static pressure to
install.
Model Static Pressure(Pa)
CTBU-09HWFN1-M(C)
CTBU-12HWFN1-M(C)
0-45
CTBU-18HWFN1-M(C) 0-70
CTBU-24HWFN1-M(C) 0-100
CTB-36HWFN1-M(C) 0-100
CTB-48HWFN1-M(C) 0-100
MTIU-18HWFN1-M 0-100
MTIU-24HWFN1-M 0-160
MTI-36HWFN1-M 0-160
MTI-48HWFN1-M 0-160
Change the fan motor static pressure
corresponding to external duct static pressure.
NOTE: 1.Do not put the connecting duct weight
on the indoor unit.
2.When connecting duct, use inflammable
canvas tie-in to prevent vibrating.
3. Insulation foam must be wrapped outside the
duct to avoid condensate. An internal duct
underlayer can be added to reduce noise,
if the end-user requires.
13.2.1.5 Control (only for inverter A5 Duct
units)

The capacity of the system and the
network address of the air-conditioner can
be set by the switches on the indoor Main
Control Board.

Before setting, turn off the power. After
setting, restart the unit.

Setting is not allowed when the unit is
power on.
1. Horsepower code setting
The capacity of the indoor unit has been set
in the factory according to the below table.
ENC1 Toggle switch
Code
Capacity(kw)
Note: The
capacity has
been set in the
factory, anyone
can’t adjust it
except the
qualified person
4
5.3
5.6
5 7.1
7 9.0
8 10.5
9
14
16
2. Network address set
Every air-conditioner in network has only one
network address to distinguish each other.
Address code of air-conditioner in LAN is set by
code switches S1 & S2 on the Main Control
Board of the indoor unit, and the set range is
0-63.
13.2.1.6 Adjust the air inlet direction (From
rear side to under-side)
For A5 Duct units
①
Take off ventilation panel and flange, cut
off the staples at side rail
2. Stick the attached seal sponge as per the
indicating place in the following fig, and then
change the mounting positions of air return
panel and air return flange.