DC INVERTER MULTI VRF INSTALLATION
107
4.1.3 Installation space requirements
Nut with
washer
Nut spring
pad
4.1.4 Installation demonstration
① Selection of return air duct
1
2
5
4
4
6
1
5 3
Wind supply
Back wind
Install the back wind pipe (a)
Wind supply
Install the back wind pipe(b)
Back wind
No. Name No. Name
1
Return air inlet (with filter) 4 Indoor unit
2
Canvas air duct 5 Supply air duct
3
Return air duct 6 Test grill
② Installation of fresh air duct
1. When fresh air ductis needed to be connected, cut the fresh air baffle as shown in fig.8. Plug up
the gap of fresh air baffle by sponge if fresh air duct is not used.
2. Install the circle flange so that the fresh air duct can be connected as fig.9.
3. Well sealing and heat preservation should be done for both air duct and circle flange pipe.
4. Fresh air should be the air after filtrate treatment.
Cut off
New wind
baffle
Cut off
Circle wind pipe
Supply air
Return air
Supply air
Return air
Install the return air pipe (a) Install the return air pipe (b)
Fresh air baffle
Round air duct