Vitosol 300-T, Type Sp3B 9. 1 Product Description; Benefits; Delivered Condition - Viessmann VITOSOL 100-F SV Technical Manual

Vitosol 300-T, type SP3B
9.1 Product description
B
A
9
C
D
E
A Copper twin pipe heat exchanger
B Condenser
C Absorber
D Heat pipe
E Evacuated glass tube
The Vitosol 300-T vacuum tube collector is available in the following
versions:

Benefits

■ Highly efficient vacuum tube collector with anti-reflective coating
based on the heat pipe principle with temperature-dependent shut-
down of vacuum tubes for high operational reliability
■ The absorber surface with highly selective coating integrated into the
vacuum tubes is not susceptible to contamination
■ Efficient heat transfer through fully encapsulated condensers and
Duotec copper twin pipe heat exchanger
■ Vacuum tubes can be rotated for optimum alignment with the sun,
thereby maximising the energy utilisation

Delivered condition

Packed in separate boxes:
■ 12 vacuum tubes per packing unit
■ Header casing with mounting rails
VIESMANN
34
■ 1.51 m
2 with 12 vacuum tubes
■ 3.03 m 2
with 24 vacuum tubes
The Vitosol 300-T can be installed on pitched roofs or freestanding on
flat roofs.
A highly selectively coated copper absorber is integrated into each
vacuum tube. It ensures high absorption of insolation and low emis-
sions 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 fitted inside a Duotec copper twin pipe heat exchanger.
This involves a so-called "dry connection", i.e. the vacuum tubes can
be rotated or replaced even when the installation is filled and under
pressure.
The heat is transferred from the absorber to the heat pipe. This causes
the liquid to evaporate. The vapour rises into the condenser. The heat
is transferred to the passing heat transfer medium by the twin pipe heat
exchanger containing the condenser. This causes the steam to con-
dense. The condensate returns back down into the heat pipe and the
process repeats.
The angle of inclination must be at least 25° to guarantee circulation
of the evaporator liquid in the heat exchanger.
The vacuum tubes can be rotated to precisely align the absorber with
the sun. The vacuum tubes can be rotated through 25° without increas-
ing shade on the absorber surface.
Up to 15 m 2 absorber area can be connected to form one collector
array. For this purpose, the standard delivery includes flexible con-
nection pipes with O-rings. The connection pipes are cladded with a
thermally insulated covering.
A connection set with locking ring fittings enables the collector array
to be readily connected to the solar circuit pipework. The collector
temperature sensor is installed in a sensor mount on the flow pipe in
the header casing of the collector.
■ Dry connection, meaning tubes can be inserted or changed while the
system is full
■ Highly effective thermal insulation for minimised heat losses from the
header casing
■ Easy installation through the Viessmann assembly and connection
systems
Viessmann offers complete solar thermal systems with Vitosol 300-T
(packs) for DHW heating and/or central heating backup (on request).
VITOSOL