Haier AB18CS1ERA - Page 188

186
Super Match
Please consult the after-sales service personnel for the choosing and installation of suction inlet, suction duct,
discharging outlet and discharging duct. calculating the design drawing and outer static pressure, and choose the
discharging duct with proper length and shape.
■ The length difference among every duct is limited below 2:1.
■ Reduce the length of duct as possible as can.
■ Reduce the amount of bend as possible as can.
■ Use heat insulation material to bind and seal the part connecting main
unit and the are part of air discharging duct. Perform duct installation
work, before the tment of ceiling.
Calculation method of the dimension of the simple quad-rate air duct
Presuming the unit length friction impedance of the duct is 1Pa/m, when
the dimension of one side of the air duct is xed as 250mm, as shown
below:
AD48HS1ERA(S) AD60HS1ERA(S)
Air volume Duct
A 2400m3/h(40m3/min) 250x560(mmxmm)
B 600m3/h(10m3/min) 250x190(mmxmm)
The calculation of duct resistance (the simple calculation is as follow table)
Straight part Calculate as per 1m length 1Pa, 1Pa/m
Bend part Each bend takes as a 3~4m long straight duct
Air out part Calculate as 25Pa
Static pressure box Calculate as 50Pa/each
Air inlet grille (with air lter) Calculate as 40Pa/each
The chosen chart of simple duct
Note:1Pa/m=0.1mmAg/m
Shape
Item
Air volume
m
3
/h (m
3
/n)
Square duct
Dimension
(mmxmm)
100 250 x 60
200 250 x 90
300 250 x 120
400 250 x 140
500 250 x 170
600(10) 250 x 190
800 250 x 230
1,000 250 x 270
1,200(20) 250 x 310
1,400 250 x 350
1,600 250 x 390
Shape
Item
Air volume
m
3
/h (m
3
/n)
Square duct
Dimension
(mmxmm)
1,800(30) 250 x 430
2000 250 x 470
2400 250 x 560
3,000(50) 250 x 650
3,500 250 x 740
4,000 250 x 830
4,500 250 x 920
5,000 250 x 1000
5,500 250 x 1090
6,000(100) 250 x 1180