SunMaxx Solar LLC
Page 9 of 39
4. Technical data and product description
4.1 Technical data
Model
ThermoPower-VTS15-HP
ThermoPower-VTS30-HP
Number of Tubes
15
30
Gross area
24.5 ft
2
47.9 ft
2
Tank
Volumetric
Capacity
40 gallons
79 gallons
Weight Empty
143.3 lbs
198.4 lbs
Fill weight
474.0 lbs
925.9 lbs
Length of Tubes
70.9 in
70.9 in
Outer tube diameter
2.3 in
2.3 in
Tube thickness
.06 in
.06 in
Tube Thermal Expansion 3.3×10
-6
℃
3.3×10
-6
℃
Absorptive coating
Graded Al-N/Al
Graded Al-N/Al
Absorbency
>92%(AM1.5)
>92%(AM1.5)
Emittance
7%(100℃)
7%(100℃)
Vacuum
P<0.005Pa
P<0.005Pa
Heat Loss
<0.8W/
㎡
<0.8W/
㎡
Insulation
Polyurethane,55mm
Polyurethane,55mm
Stagnation Temperature
<220
℃
<220
℃
Maximum
working
temperature
90
℃
90
℃
Maximum
Working
Pressure of all circuits
0.6MPa
0.6MPa
Working pressure
0.4MPa
0.4MPa
Maximum wind and
snow load
0.49kN/m²
0.49kN/m²
Tilt Angle
45°
45°
Inlet and Outlet
½ in
½ in
T&P Valve Port
½ in
½ in
Frame
Aluminum Alloy
Aluminum Alloy
4.2 System Tolerance Information
Freeze tolerance limits are based upon an assumed set of environmental conditions.
Extended periods of cold weather, including ambient air temperatures above the
specified limit, may cause freezing in exposed parts of the system. It is the owner’s
responsibility to protect the system in accordance with the Supplier’s instructions if the
air temperature is anticipated to approach the specified freeze tolerance limit.
