Download - PAW - customer-oriented solutions and innovative power ....pdf

Loading ...
Global Do...
News & Politics
PAW GmbH & Co.KG 
Böcklerstraße 11  
| D-31789 HAMELN | GERMANY
 +49-5151-9856-0   | 
 +49-5151-9856-98
 info@paw.eu   
| 
 www.paw.eu
PAW - customer-oriented solutions 
and innovative power
Founded in 1964 and based in Hameln, the family-
owned company PAW GmbH & Co. KG, is a system 
technology specialist for heating and solar thermal 
systems.
Innovative power, customized develop-ments, as 
well as a broad product portfolio, have made PAW a 
reliable partner for a large variety of customers. Com-
prehensive and professional technical support and 
dedicated customer orientation complete the servi-
ces offered by PAW.
PAW develops and manufactures its products exclu-
sively in Germany. By using only top quality materials 
and employing optimized production processes this 
ensures a maximum of quality.
In 2009, exports accounted for over 60% at PAW. The 
Hameln location alone was no longer sufficiently 
able to best meet the demands and requirements of 
all customers in their different markets. PAW France 
S.a.r.l. was the first subsidiary in 2008, followed in 
2009 by PAW Tecnologia Calefaccion y Solar in Spain, 
PAW Polska, PAW VertriebsGmbH in Austria and PAW 
LP in the USA.
PAW at the InterSolar 2010
Again this year, PAW will be showing a number of so-
lution-oriented new developments at the InterSolar 
in Munich.
For the first time PAW have utilized their decades of 
hydraulics know-how to customize a control strate-
gy for their solar and transfer stations. Results of this 
development are the solar controllers SC4.16 and 
SC8.24 which offer numerous additional functions, 
such as plant visualization, remote monitoring and 
manipulation.
This year, the proven FlowCon solar stations will be 
presented in two different variants: the FlowCon Ba-
sic, an inexpensive entry level model, and the Flow-
Con Premium, an exclusive station offering cutting-
edge technology.
The following pages give information on further PAW 
product highlights.
PAW GmbH & Co.KG 
Böcklerstraße 11  
| D-31789 HAMELN | GERMANY
 +49-5151-9856-0   | 
 +49-5151-9856-98
 info@paw.eu   
| 
 www.paw.eu
FriwaMini domestic hot water module
Now that the domestic hot water stations for medi-
um and larger volumes, Friwa and Friwa-Kaskade, are 
well established on the markets, PAW will round off its 
product range this year with the small and compact 
FriwaMini. This domestic hot water module is ideally 
suited to meet the potable water requirements of 
single- and two-family houses. Like its larger coun-
terparts, the FriwaMini operates on the flow heater 
principle and draws its energy from a buffer storage 
tank which can be heated by various systems. This 
makes the FriwaMini especially suited for conver-
ting existing heating systems to hygienic fresh water 
technology.
It differs from its counterparts by using an econo-
mical high-efficiency pump and intelligent control 
strategy. This ensures both a positive environmen-
tal footprint as well as a high degree of comfort: the 
performance of the pump is controlled directly and 
according to requirements, based on the amount of 
water withdrawn and the specific hydraulic system. 
Readjustment is not necessary and precludes any 
overshoot in exit temperatures which is common in 
conventional controls.
Friwa Mini
PAW GmbH & Co.KG 
Böcklerstraße 11  
| D-31789 HAMELN | GERMANY
 +49-5151-9856-0   | 
 +49-5151-9856-98
 info@paw.eu   
| 
 www.paw.eu
Tank transfer station
PAW also offer a transfer station for potable water 
tanks to complement their fresh water product ran-
ge. This allows heating of potable water from large 
buffer storage systems. The stainless-steel plate heat 
exchanger is completely integrated into the insulati-
on and thus ensures highly efficient heat transfer to 
the potable water tank.
The transfer station is an economical alternative to 
the Friwa-Kaskade, especially if large amounts of po-
table water need to be provided in a short period of 
time.
The three-way mixing valve with its infinitely ad-
justable constant value mixer limits secondary flow 
temperatures and safely avoids scalding.
Tank transfer station
PAW GmbH & Co.KG 
Böcklerstraße 11  
| D-31789 HAMELN | GERMANY
 +49-5151-9856-0   | 
 +49-5151-9856-98
 info@paw.eu   
| 
 www.paw.eu
Transfer stations SolexMini
The SolexMini is a small and compact transfer stati-
on with high transfer performance for solar systems 
up to 20 m² collector surface. Different variants are 
available for heating or potable water circuits. With 
its external heat exchanger the SolexMini is the ide-
al solution for straightforward extensions to heating 
systems as existing tanks can continue to be used.
With its variants „Basic“ and „Premium“, the SolexMini 
meets all requirements: the Basic version is an eco-
nomical entry level model for price-conscious custo-
mers. A temperature difference controller, analog vo-
lume flow meters and a three-stage standard pump 
offer proven components and allround functionality. 
The Premium variant is exclusively and fully equipped 
with cutting edge technology. The station comprises 
finely adjustable high-efficiency pumps in both the 
primary and secondary circuits. Electronic flow rate 
sensors and the PAW-developed controllers permit 
both system control as well as thermal balancing.
SolexMini Premium TWH
SolexMini Basic HZH
PAW GmbH & Co.KG 
Böcklerstraße 11  
| D-31789 HAMELN | GERMANY
 +49-5151-9856-0   | 
 +49-5151-9856-98
 info@paw.eu   
| 
 www.paw.eu
The Solex product portfolio
Solar transfer stations
The SolexMini is the smallest module of the techni-
cally mature Solex product range which offers ideally 
suited transfer stations for all sizes of systems. Whe-
ther it is the SolexMini, the Solex, the SolexMax or 
the Solex Kaskade, the Solex range offers the right 
solution for any system from 20 to 400 m² collector 
surface.
The SolexMax-Kaskade meets the demanding re-
quirements of large solar thermal installations with 
up to four modules. This concept offers maximum 
failsafe reliability and received the 2008 InterSolar 
Award. PAW did not retire on their laurels and this 
year present the proven Kaskade with the new con-
troller SC8.24. This own development is based on 
the controller concept of exergy-optimized storage 
management. To reduce the CO2 emission of the 
thermal unit, the primary and secondary flow rates 
are measured and then synchronized such to redu-
ce reheating times to a minimum. The controller also 
offers numerous additional features including visua-
lization, remote manipulation and monitoring.
Solex HZH
SolexMax Premium
SolexMax-Kaskade
PAW GmbH & Co.KG 
Böcklerstraße 11  
| D-31789 HAMELN | GERMANY
 +49-5151-9856-0   | 
 +49-5151-9856-98
 info@paw.eu   
| 
 www.paw.eu
Solar controllers SC4.16 and SC8.24
Conventional temperature difference controllers 
operate on the assumption that a given change in 
revolutions will always result in a defined change of 
flow rate. Is this really true? Why are the specific hy-
draulics of the system not taken into account? This 
was the question posed by our hydraulic specialists 
at PAW and led to the development of two solar con-
trollers with a customized controlling concept for 
your solar and transfer stations. The concept is based 
on measuring the mass flow and the thus determi-
ned thermal flow at the heat exchanger. The exergy-
optimized storage management ensures that only 
the correct tank is always charged to maintain or in-
crease temperature.
The optional LAN, GSM or Bluetooth interface also 
allows for remote monitoring and optimization of 
systems, so that the installing company can also offer 
its customers important long-term services. System 
visualization on the PC allows the graphic display of 
process data. It is therefore easy for the technician 
to detect faults via the PC, to maintain emergency 
operation via remote manipulation and to prepare 
for the necessary outdoor repair services.
Solar controllers SC4.16 and SC8.24
Remote monitoring of several systems via PC
PAW GmbH & Co.KG 
Böcklerstraße 11  
| D-31789 HAMELN | GERMANY
 +49-5151-9856-0   | 
 +49-5151-9856-98
 info@paw.eu   
| 
 www.paw.eu
Solar stations FlowCon Basic/Premium
To meet different customer requirements, PAW fo-
cuses on the two variants Basic and Premium for its 
proven solar stations FlowCon. The FlowCon Basic 
is an inexpensive entry level model with functional 
features. This includes an analog volume flow meter 
and can be fitted optionally with an high-efficiency 
pump or a solar controller.
In contrast, the FlowCon Premium is fully equipped. 
It is fitted with a FlowRotor and Hall sensor for the 
precise determination of flow rates. The combined 
pressure and temperature sensors and the return 
temperature sensor allow for precise monitoring of 
the system. In addition to the statistical values on 
temperature, volume flow and pressure, the cont-
roller also calculates and stores the amount of solar 
thermal energy produced. Based on this accumula-
ted data, the system can be optimized perfectly after 
only brief operation, if so required. Together with the 
standard fitted high-efficiency pump this results in 
maximum efficiency of the system.
FlowCon Basic
FlowCon Premium
PAW GmbH & Co.KG 
Böcklerstraße 11  
| D-31789 HAMELN | GERMANY
 +49-5151-9856-0   | 
 +49-5151-9856-98
 info@paw.eu   
| 
 www.paw.eu
Product range FlowCon
The FlowCon product range covers all requirements, 
from a 1-line to a 3-line station. Using an extension 
station, the FlowCon 2-line station can be extended 
by one line at a later date. This makes it easy to im-
plement solutions for 2 roofs or 2 storage tanks. The 
modular construction and uniform design allow for 
flexibility and reduce the installer‘s stocking costs.
In addition to the FlowCon (DN 20), PAW continues 
to supply the solar stations FlowCon Max (DN 25) 
and FlowCon XL (DN 32) for larger systems.
FlowCon stagnation cooler
The FlowCon stagnation cooler offers an amazingly 
simple solution to overcoming stagnation problems 
and protecting the solar station from thermal over-
load.
The long stainless-steel tube with its exceptionally 
large cooling surface area is arranged directly after a 
FlowCon solar station and together they form a func-
tion-optimized unit. The expansion tank can be fitted 
directly to the stagnation cooler at the collector inlet 
so that overheated solar fluid cannot be pressed into 
the storage tank.
FlowCon return station
FlowCon extension station
FlowCon stagnation cooler
PAW GmbH & Co.KG 
Böcklerstraße 11  
| D-31789 HAMELN | GERMANY
 +49-5151-9856-0   | 
 +49-5151-9856-98
 info@paw.eu   
| 
 www.paw.eu
Customized branding of PAW products
Customized branding of FlowCon solar stations is 
available at low cost, even for small quantities. For 
example, the cover of the controller can be printed 
with the customer‘s logo.
The established PAW modular heating circuits with 
their new design insulation and the Solex transfer sta-
tions can also be personalized easily: an insert in the 
shape of a credit card is printed with the customer‘s 
logo.
For larger quantities, PAW can, of course, offer their 
OEM partners exclusive series. By their modular de-
sign these OEM variants offer a wide range of choice. 
PAW supports its OEM customers in the selection and 
implementation of individual solutions, be it from 
simple insert plates to customized insulation, from 
sensors to controllers, from ball valves to entire hy-
draulic systems. Our partners benefit from decades 
of competence gained in the field of hydraulics and 
systems as well as from quality „Made in Germany“.
Solar station FlowCon
Heating circuit DN 25
Transfer station SolexMini HZH
PAW GmbH & Co.KG 
Böcklerstraße 11  
| D-31789 HAMELN | GERMANY
 +49-5151-9856-0   | 
 +49-5151-9856-98
 info@paw.eu   
| 
 www.paw.eu
DrainBloC®
PAW‘s DrainBloC® is a compact station for self-drai-
ning systems.
As soon as the pump of the DrainBloC® is switched 
off, the collector field runs empty and the solar fluid 
is collected in the integrated container. As soon as 
the pump is switched back on, the collector field is 
refilled. This prevents any problems of stagnation or 
frost in the collector field. Due to its system approach, 
the DrainBloC® does not require an expansion tank. 
Water can simply be used as heat transfer medium, 
as it offers the benefits of environmental compati-
bility, higher heat capacity and lower viscosity over 
conventional solar fluids.
The pump and the controller were developed speci-
fically for the DrainBloC® and are ideally suited for the 
special requirements of self-draining systems.
Following the successful launch in 2009, a special 
vent valve was added to the DrainBloC®. The vent 
valve increases the return speed significantly. This re-
duces the warm-up and return times and increases 
the efficiency of the system.
DrainBloC®