Samsung RVMC060GDM0 Technical Manual page 7

Ι
. Overview
1. DVM system series
(3) Variable compressor
The world's first PWM(Pulse Width Modulation) compressor controls the cooling & heating capacity
automatically, depending on the load.
1) Principle of the digital compressor
Composition
The solenoid valve is installed for the compressor´s loading / unloading between the upper part of the
fixed scroll and the suction pipe.
Mechanism
a. When the solenoid valve is turned off, the fixed scroll is closed to the orbiting scroll (Loading),
b. When the solenoid valve is turned on, the fixed scroll is separated from the orbiting scroll (Unloading),
c. This process controls the On / Off times of the valve and the rotating refrigerants in the circle,
thus adjusting the capacity.
d. The cooling capacity of the outdoor unit is controlled automatically,depending on the
number of operating indoor unit(s).
< 1-Compressor system >
100
90
80
70
60
50
40
30
20
10
0
3000
< 2-Compressor system >
100
90
80
70
60
50
40
30
20
10
0
0
loading
unloading
6000 9000 12000 15000
Total capacity of operating indoor unit(s)
(kcal/h)
Digital operating
Fixed compressor
operating
Digital only
operating
5000 10000 15000 20000
Total capacity of operating indoor unit(s)
(kcal/h)
I
8
18000
25000