Alpha Technologies Radium MiniBay - Manual (Page 24)

24 044-001-C0-00, Rev. C
2.0 DC Air Conditioner, continued
2.2 DC Air Conditioner Specifications
The chart above table illustrates air conditioner capacity under controlled conditions. A safety factor should
be used depending on cabinet insulation and outside air filtration. To calculate capacity in BTUs at a given
outdoor ambient temperature multiply 3.413 x (capacity watt/hr).
NOTE:
0 10 20 0 40 50
200
400
600
800
1000
1200
1400
Capacity (watt/hr)
Total Unit Watts
Ambient Temp (C)
C
ap
ac
ity
W
at
ta
ge
Capacity: 3,000 BTU @ 110°F (43ºC) See chart below
External Amb. Operating Range: -40°C (-104°F) to +50°C (+122°F) RH 13%
Max Internal Amb. Temperature: +40°C (+104°F) RH 25%
Maximum Internal Hysteresis: 10°C (50°F)
Maximum Operational Power Draw: 500W ±10% (see chart)
DC Operation @ 48VDC: 42VDC to 60VDC range with LVD fixed at 42V
circuit breaker, magnetic short delay 15A
DC Operation @ 24VDC: 21VDC to 30VDC range with LVD fixed at 21V
circuit breaker, magnetic short delay 0A
Cooling System Control: Low current DC or dry contact on/off
Major Alarm: Compressor/controller system fail
Minor alarm: High condensing temperature, Low evaporator
temperature, Enclosure over-temp
Refrigerant Type: R14a
Fan Life: >50,000 Hours
Color: Almond semigloss (other colors available)
External Dimensions (in/mm): 19.50 W x 38.25 H x 7.50 D (495 x 972 x 191)
Agency: CSA
Enclosure Rating: IP55 - Weather tight hose directed spray
Noise Level: 60 dBA at one meter
Materials: Corrosion and salt-fog resistant (including fans)