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(2) DVM test condition
(3) VAV test condition
❋ The static pressure is equal to the maximum open position by adjusting the damper.
#1 (5.2kW) #2 (5.2kW) #3 (5.2kW) #4 (5.2kW)
Indoor unitOutdoor unit
(21kW)
Pipe (Copper)
Static pressure gauge
Damper
Test unit
Cord
tester #1
Cord
tester #2
Flexible hose
Air flow
Discharge duct
Suction duct
Discharge duct
Test unit
■
Zone control conditions
Zone control Sample #1 Sample #2 Sample #3
Off
On
On
On
On
On
On
On
25%
50%
75%
100%
Off
Off
On
On
Sample #4
Off
Off
Off
On
■
Zone control conditions
Zone control No. of duct opening Zone control No. of duct opening
75%
100%
1
2
25%
50%
3
4
Outdoor unit : Fixed compressor(21kW)
DVM E-D/B(chapter1)-E<03759 3/21/02 6:55 PM Page 13