Operating Instructions and Installation
Samsung Electronics11-20
■ Advantages for installation and maintenance
1. Cost Saving
The graph shows that the unloaded power consumption is 10% of full load power in case of 6 seconds loaded and 6 seconds
unloaded. In each cycle of modulation, the discharge pressure builds up during the loaded cycle, then the discharge pressure
decreases during the unloaded cycle. Similarly, the suction pressure decreases during the loaded cycle and it increases during
the unloaded cycle. The transition time to build up the pressure is a fraction of a second. The average value is around 0.4 sec-
ond.
2. Long Pipe Runs for Easy Installation and Application
The refrigerant pipe length between the outdoor and
indoor unit at can be up to 170meters.
• Height between indoor and outdoor unit can be
50meters.
• The value is calculated from the case where the
outdoor unit is installed above the indoor unit. If the
outdoor unit is located underneath the indoor unit,
the level difference would be a maximum of 40meters.
• Equivalent piping length between outdoor and
indoor units ≤ 190meter(DVM Plus2)
• The distance from the first refnet joint to the
indoor unit ≤ 45meters (DVM Plus2)
15m(Height between indoor units)
50m
(Height between indoor and outdoor unit)
170m(Max. piping length)
* Total pipe length of DVM Plus2 are 300m respectively.
Division
Equipment
Piping
Duct-install
Grand
Power consumption
Monthly consumption
Annual consumption
(6 months in a year)
1 year rate
3 year rate
5 year rate
Comparison
Initial cost
(US$)
Running cost
(US$)
Chiller
25,558
5,111
17/m
2
43,419
43kW X 1.0
15,695kWh
94,170kWh
6,780
20,340
33,900
121%
Unitary
27,500
17/m
2
40,250
52.5kW X 1.0
19,162kWh
114,972kWh
8,277
24,833
41,389
148%
DVM
29,812
17/m
2
42,562
44.2kWx0.8(Variable compressor)
12,906kWh
77,436kWh
5,575
16,726
27,877
100%
• Heat loads : 90,000 kcal/h in Korea • Total area : 750m
2
• Running : Every 3 months in summer and winter
Compare DVM technology with conventional systems
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