Multi Variable Air Conditioners Ducted Type Indoor Unit
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(4) More noise is likely to be produced in the bottom return air mode than the rear return air
mode, so it is suggestive to install a silencer and a static pressure box to minimize the noise.
(5) The installation method can be chosen with considering the conditions of the building and
maintenance etc., as shown in Fig.4.4.5.
Fig.4.4.5
4.4.3 Installation of the Fresh Air Pipe
(1) When the fresh air pipe is needed to be connected, cut the fresh air baffle as Fig.4.4.6. Plug
up the gap of the fresh air baffle by sponge if the fresh air duct is not be used.
(2) Install the round flange so that the fresh air duct can be connected as Fig.4.4.7.
(3) Sealing and heat preservation should be done for both the air pipe and round flange pipe.
(4) Fresh air should be treated via the air filter.
Fig.4.4.6 Fig.4.4.7
4.5 Installation of Wired Controller
Please refer to User Manual of Wired Controller for the installation details.
NOTE!
When installation is finished, the unit must be tested and debugged before operation.
Please refer to Instruction Manual of ODU for auto addressing and debugging details.
5 Wiring Work
WARNING!
Before obtaining access to terminals, all supply circuits must be disconnected.
NOTES!
① Units must be earthed securely, or it may cause electric shock.
② Please carefully read the wiring diagram before carry out the wiring work, incorrect wiring
could cause malfunction or even damage the unit.
③ The unit should be powered by independent circuit and specific socket.
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