Page 1
Technical Data Manual
Model Nos. and pricing: see Price List
Vacuum tube collector based on the heat pipe principle
For the utilisation of solar energy
VITOSOL r 200-T SPE
Product may not be exactly as shown
VITOSOL 200-T Type SPE
Vacuum tube collector
For the heating of DHW, supplement heating systems
and swimming pool water via heat exchangers as well
as for the generation of process heat.
For installation on pitched and flat roofs, as well as for
freestanding installations.
5693 556 v1.0
Page 2
Product Information
Product Description
Vitosol 200-T, SPE Technical Data
Benefits
■ Highly efficient vacuum tube collector based on the
heat pipe principle for high operational reliability.
Optimized for horizontal installation on flat roofs.
■ Optimized tube spacing prevents shading.
■ Can be universally installed anywhere, either vertically
or horizontally, on roofs as well as for horizontal and
freestanding installation.
■ The absorber areas with a highly selective coating
are integrated into the vacuum tubes and therefore
are not susceptible to contamination.
■ Efficient heat transfer through fully encapsulated
condensers.
■ Tubes can be rotated (up to 45°) for optimum
alignment with the sun, thereby maximizing the energy
utilisation.
■ Dry connection, meaning tubes can be fitted or replaced
when the system is fully operational.
■ Highly effective thermal insulation for minimized heat
losses from the header casing.
■ Easy installation through the Viessmann assembly and
connection systems.
The Vitosol 200-T, type SPE can be installed on sloped
or flat roofs as well as horizontally (laying flat) or
freestanding. On sloped roofs the collectors may be
positioned vertically (tubes at right angles to the roof
ridge) or horizontally (tubes parallel to the roof ridge).
A highly selectively coated metal absorber is incorporated
inside each vacuum tube. It ensures high absorption of
insolation and low emissions of thermal radiation.
A heat pipe filled with an evaporation liquid is arranged
on the absorber. The heat pipe is connected to the
condenser. The condenser is located inside a heat
exchanger designed as a block made from aluminium
and copper.
The system is referred to as a “dry connection”,
i.e. tubes can be rotated and replaced even when the
system is filled and is pressurised. The heat is transferred
from the absorber to the heat pipe. This causes the liquid
to evaporate. The vapor rises into the condenser. Heat is
transferred by the heat exchanger with its copper
manifold, inside which lies the condenser, to the
heat transfer medium streaming past, and the vapor
condenses. The condensate returns back down into
the heat pipe and the process repeats.
The angle of inclination must be greater than zero to
guarantee circulation of the evaporator liquid in the
heat exchanger. Deviations from south can be partially
compensated for by rotating the vacuum tubes.
Up to 215 ft
to form one collector array. For this purpose, the standard
delivery includes flexible connection pipes with O-rings.
A connection set with clamping ring fittings enables the
collector array to be readily connected to the pipes of the
solar circuit. The collector temperature sensor is fitted
into a sensor well inside the collector header casing.
2
(20 m2) absorber area can be connected
Legend
A Heat exchanger block made from aluminium and copper
B Copper manifold
C Condenser
D Absorber
E Heat pipe
F Evacuated glass tube
The Vitosol 200-T, type SPE vacuum tube collector is
available in the following versions:
■ 1.63 m
■ 3.26 m2 with 18 tubes.
2
2
2
with 9 tubes
Delivered condition
Packed in separate boxes:
■ Vacuum tubes, 9 pieces per box
■ Header casing with tube retainer rails
5693 556 v1.0
Page 3
Vitosol 200-T, SPE Technical Data
Specification
Product Information
Vitosol 200-T 1.63 m
2
3.26 m
Number of tubes 9 18
2
Gross area ft
Absorber area ft
Aperture area ft
Installation position (see figure below)
(m2) 28.63 (2.66) 57.26 (5.32)
2
(m2) 17.55 (1.63) 35.10 (3.26)
2
(m2) 18.84 (1.75) 37.57 (3.49)
A, B, C, D, E, F
Spacing between collectors in. (mm) 1.73 (44) 1.73 (44)
Dimensions
Width
Height
Depth
in. (mm)
in. (mm)
in. (mm)
48 (1220)
89 (2260)
6.85 (174)
94 (2390)
89 (2260)
6.85 (174)
The following values apply to the absorber area:
(as tested by TUV testing laboratories in Europe)
– Optical efficiency
– Heat loss factor k1
– Heat loss factor k2
k1 W/(m
k1 W/(m2 · K2)
Thermal capacity kJ/(m
2
%
· K)
73
1.21
0.0075
2
· K) 8.4 8.4
73
1.21
0.0075
Weight lb(kg) 126 (57) 249 (113)
Liquid content
USG (L) 0.124 (0.47) 0.243 (0.92)
(heat transfer medium)
Permissible operating pressure psig (bar) 87 (6) 87 (6)
Maximum stagnation temperature °F (°C) 518 (270) 518 (270)
Connection Ø in. (Ø mm) ¾ (22) ¾ (22)
2
Tested quality
The collectors meet the requirements of the “Blue Angel”
eco-label to RAL UZ 73.
Tested in accordance with Solar KEYMARK, EN 12975
and SRCC 0G-100
5693 556 v1.0
CR Collector return
CS Collector supply
Vitosol 200-T 1.63 m
2
3.26 m
a in. (mm) 48 (1220) 94 (2390)
2
3
3
Page 4
Design Information
Installation on Sloped Roofs
Required roof area
Vitosol 200-T
Vertical installation Horizontal installation Vertical installation Horizontal installation
a in.
(mm)
b in.
(mm)
* space between collectors if multiple units are installed in an array.
Add dimension b for each additional collector.
98.4
(2500)
57.9 + 1.75*
(1470 + 44*)
1.63 m
2
57.9 + 1.75*
(1470 + 44*)
98.4
(2500)
Vitosol 200-T, SPE Technical Data
98.4
(2500)
104 + 1.75*
(2640 + 44*)
3.26 m
2
104 + 1.75*
(2640 + 44*)
98.4
(2500)
Installation with roof brackets
■ This method of fixing can be applied universally on
all common roof covers.
■ The fixing system comprises roof brackets, mounting
rails, clamping brackets and screws.
■ Forces are applied to the roof structure in various ways,
including via the roof brackets and the roof cover. Roof
covers can be very different. Consequently, damage
cannot be completely excluded in the case of applied
loads.
4
4
Mounting bracket
Note: During installation, e.g. on sheet steel roofs,
the mounting rails are secured directly on to
the mounting brackets with T-bolts.
Use on-site fixing options to secure the brackets,
to the substructure.
5693 556 v1.0
Page 5
Vitosol 200-T, SPE Technical Data
Installation on Sloped Roofs
Horizontal installation
Design Information
(continued)
Legend
A Header casing
B Mounting rail
C Tube retainer
D Mounting bracket
E Roof bracket
F Vacuum tube
Vertical installation
Legend
A Vacuum tube
B Clamping bracket
C Tube retainer
D Mounting rail
E Roof bracket
F Header casing
G Mounting plate
5693 556 v1.0
5
5
Page 6
Design Information
Installation on Flat Roofs
Vitosol 200-T, SPE Technical Data
When installing collectors, maintain the minimum
clearances towards the roof edge in accordance with
DIN 1055.
If the roof size necessitates a split array, ensure that
sections of the same size are created. The collectors can
be secured on any solid substructure or on concrete slabs.
When installing collectors on concrete slabs, secure them
with additional ballast against slippage, tipping and lifting.
Slippage is the movement of the collectors on the roof
surface due to wind, because of insufficient friction
between the roof surface and the collector fixing system.
Collectors can be secured by guy ropes or by being fixed
to other roof structures.
Vertical tube installation (elevated)
Collector supports with fixed angle of inclination
Legend
A Footplates
B Rear support
C Collector support
Angle of
inclination
a in.
(mm)
Ballast and max. load on the substructure
Calculation in accordance with DIN 1055-4, 3/2005
and DIN 1055-5, 7/2005 or applicable local codes.
Two support slabs each, both A and B are required
for every collector.
Ballast weight requirements, as well as the calculation of
additional live loads (due to installation of solar collectors),
must be evaluated by a professional structural engineer.
Combination x in. (mm) y in. (mm)
1.63 m2/1.63 m223.6/23.6 (600/600) 25.4 (644)
1.63 m2/3.26 m223.6/47.2 (600/1200) 37.4 (949)
2
3.26 m
/3.26 m247.2/47.2 (1200/1200) 48.6 (1234)
30° 45° 60°
95
(2413)
86.6
(2200)
72.36
(1838)
Note: For calculating z, see page 7.
66
5693 556 v1.0
Page 7
Vitosol 200-T, SPE Technical Data
Installation on Flat Roofs
Design Information
(continued)
Determining the collector row clearance z
At sunrise and sunset (when the sun is very low),
shading cannot be avoided when collectors are arranged
behind one another. To keep the reduction in yield within
acceptable parameters, observe specific row clearances
(dimension z). When the sun is at its highest on the
shortest day of the year (21.12), the rows at the back
should be free of shading. The angle of the sun β (at
midday) on 21.12. must be used to calculate
the row clearance.
Example:
Toronto is approximately located on latitude 43° north.
In the northern hemisphere, this value is calculated as
follows:
Angle β = 90° - 23.5° - latitude
= 90 - 23.5 - 43 =23.5
h = 2260 mm
α = 45°
β = 23.5°
z = sin (180°– (α+β))
h sin β
z = 2260 mm · sin (180° – 68.5°)
sin 23.5°
z = 208 in. (5273 mm)
z = Distance between collector rows
h = Collector height (for dimensions see “Specification”
for the relevant collector)
α = Angle of collector inclination
β = Angle of the sun
5693 556 v1.0
7
7
Page 8
Design Information
Installation on Flat Roofs
A Support slabs A
B Support slabs B
Vitosol 200-T, SPE Technical Data
Horizontal installation (non-elevated)
Yield can be optimized by rotating the vacuum tubes to
45° to the horizontal plane. The collector must be sloped
greater than 0°.
Ballast and maximum load on the substructure
Calculation in accordance with DIN 1055-4, 3/2005 and
DIN 1055-5, 7/2005 or applicable local codes.
Two support slabs each, both A and B are required for
every collector.
Ballast weight requirements, as well as the calculation of
additional live loads (due to installation of solar collectors),
must be evaluated by a professional structural engineer.
88
5693 556 v1.0
Page 9
Vitosol 200-T, SPE Technical Data
Installation Examples
Take venting into account when engineering the collector
array.
Note: Max. 215 ft
be connected in series to form a single array.
2
(20 m2) absorber collector area can
Design Information
Vertical installation on sloped roofs, horizontal installation
or installation on supports
Single row installation; connection from the left or right
[215 ft2 ([202)
A Collector temperature sensor
Installation in several rows, connection from the left or right
Horizontal installation on a sloped roof
1 collector array
With this type of connection, the “Evacuated tube
collector” function at the SCU control must be enabled.
A Collector temperature sensor
2 or more collector arrays
A Collector temperature sensor
With this type of connection, the “Evacuated tube
collector” function at the SCU control must be enabled.
A Collector temperature sensor
5693 556 v1.0
9
9
Page 10
Design Information
Pressure Drop
Pressure Drop
Vitosol 200-T, SPE Technical Data
Relative to water, corresponds to Tyfocor LS at
approximately 140° F (60° C).
Note: For multiple collector arrays, use the total flow
for the whole array to calculate the pressure drop.
A 1.63 m
B 3.26 m
10
Flow Rate
2
2
5693 556 v1.0
Page 11
Vitosol 200-T, SPE Technical Data
Flow Rate
Design Information
SPE collectors have minimum required flow rates (lowflow mode), and maximum flow rates (high-flow mode).
The collectors must operate within this range, and the
designer must choose a flow rate based on the specific
parameters of the system.
Individual collector flow rates
Flow High flow mode
USG/min (L/min)
Model 1.63m2 (9 tube collector) 0.47 (1.8) 0.35 (1.33) 0.26 (1.0)
Model 3.26 m2 (18 tube collector) 0.95 (3.6) 0.70 (2.65) 0.53 (2.0)
Recommended collector array flow rates
Flow High flow mode
USG/min (L/min)
9 tube collector array (model 1.63m
18 tube collector array (model 3.26 m
27 tube collector array* 1.4 (5.4) -- --
36 tube collector array* 1.9 (7.2) -- --
45 tube collector array* 2.4 (9.0) -- --
54 tube collector array* 2.9 (10.8) -- --
72 tube collector array* -- 2.8 (10.6) --
90 tube collector array* -- 3.5 (13.3) 2.7 (10.0)
108 tube collector array* -- -- 3.2 (12.0)
* Collector arrays are combinations of collector model 1.63m2 and/or model 3.26 m
2)
2)
High-flow mode
High-flow mode results in low temperature spread across
the collectors, but may require bigger pump and pipe sizes
for large systems. High-flow mode is best suited for small
scale systems consisting of less than 60 tubes.
Medium and low-flow modes
Medium and low-flow modes result in smaller pipe and
pump sizes, but higher temperature spread across the
collectors. Low-flow and medium-flow modes should
be used for larger collector arrays consisting of greater
than 60 tubes, to avoid high friction losses and high fluid
velocities within the collector, and reduce the size of
supply and return piping requirements.
Use the charts below to determine the required flow rate,
based on the size of the collector or collector array.
Medium flow mode
USG/min (L/min)
Medium flow mode
USG/min (L/min)
0.47 (1.8) -- --
0.95 (3.6) -- --
2.
Low flow mode
USG/min (L/min)
Low flow mode
USG/min (L/min)
5693 556 v1.0
11
Page 12
12
5693 556 v1.0
Vitosol 200-T, SPE Technical Data
Technical information subject to change without notice. Printed on environmentally friendly
(recycled and recyclable) paper.
Loading...