Consolar SOLUS II 550 User manual

1
Last revised 05/2009 art. no. TDMA 020 EN
S
SO OL LU US S I II I
T
Th he e c co om mb bi in ne ed d s sy ys st te em ms s f fo or r m ma ax xi im mu um m e en ne er rg gy y s sa av vi in ng gs s
COMFORT: SOLUS II 550, SOLUS II 800, SOLUS II 1000,
SOLUS II 800 PM, SOLUS II 800 S,
SOLUS II 1000 PM, SOLUS II 1000 S.
COMFORT PRO: SOLUS II 560 L, SOLUS II 850 L,
SOLUS II 1050 L, SOLUS II 2200 L,
SOLUS II 560 NFL.
Application • Use
Solar water heati g a d heati g support
Bufferi g for gas, oil a d solid fuel boilers as well as heat
pumps
Hygie ic water heati g via i sta ta eous heati g
Special advantages
Buffer water heated with solar e ergy ca be used for direct
space heati g.
Boiler water a d heati g water ca be charged to the storage
ta k without a heat excha ger restricti g the performa ce. This
results i lo g boiler ru i g time a d sta dstill time with low
emissio s.
Particularly low heat loss
Various heati g circuits ca be co ected accordi g to tem-
perature.
Hydraulic separatio of heati g a d boiler supplies.
SOLUS II 560 L low storage ta k height for rooms with low ceil-
i gs
Technical documentation
INSTALLATION AN OPERATING
INSTRUCTIONS
1 DESCRIPTION OF THE COMBINED STORAGE
TANK 2
1.1 Special adva tages 2
2 PLANNING AID 4
2.1 Tra sport 4
2.2 Co ectio to the dri ki g water supply 4
2.3 Co ectio to the solar power system 5
2.4 Co ectio to the boiler a d heati g circuit 5
2.5 Parallel co ectio of two SOLUS II storage ta ks 5
2.6 Electrical backup heati g 5
2.7 Materials 5
2.8 Sta dards 6
2.9 Retur accepta ce stateme t 6
3 CONNECTION WITH BOILER BUFFERING 6
3.1 Adva tages, limits 6
3.2 Co ectio rules 6
3.3 System diagram with solar power system a d hot water
circuit 7
3.4 Co ectio assig me t for boiler a d heati g circuit 7
4 CONNECTIONS WITH
RETURN INCREASES 9
4.1 Adva tages, limits 9
4.2 Co ectio rules 9
5 CONNECTIONS FOR EXPANDING CAPACITY 10
5.1 Adva tages, limits 10
5.2 Co ectio rules 10
5.3 Co ectio examples for parallel co ectio 11
5.4 Co ectio example for cascade co ectio 11
6 TECHNICAL DATA 12
7 DIMENSIONS 13
8 INSTALLATION 14
8.1 Before co ecti g 14
8.2 Tra sport 14
8.3 Storage 14
8.4 I stallatio 14
8.5 Hydraulic co ectio 15
8.6 Filli g 17
8.7 I stalli g the i sulatio 18
8.8 Co ecti g the temperature se sors 20
9 OPERATING INSTRUCTIONS 20
9.1 Commissio i g 20
9.2 Operatio a d mai te a ce 21
9.3 Drai i g a d cha gi g water 21
10 TROUBLESHOOTING 21
10.1 There is o hot water 21
10.2 The heati g temperatures are too low 22
10.3 The storage ta k cools dow quickly 22

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IMPORTANT NOTES:
Only transport the storage tank vertically in vehicles
Use diff sion-resistant pipes for heating
S pport sleeves m st be sed when sing soft C pipes.
The storage tank may only be r n with water
witho t additives.
The max. permitted storage tank inlet temperat re of
the solar heat exchanger is 110 °C.
1escription of the combined
storage tank
The SOLUS II series is a combi ed storage ta k with i ter al
heat excha gers for solar chargi g a d hygie ic water
heati g.
The series was desig ed specifically for combi i g solar
power systems with oil, gas, pellet or solid fuel boilers. The
co ectio of the buffer storage ta k to the boiler avoids
freque t activatio a d deactivatio , thus reduci g emis-
sio s.
COMFORT line: SOLUS II 550, SOLUS II 800 and SOLUS II
1000
These storage ta ks are highly efficie t a d co ve ie t,
while also offeri g excelle t eco omy. They are suitable for
most applicatio s, but ot for heat pumps with a supply
temperature of max. 55 °C.
SOLUS II 800 S / SOLUS II 1000 S
SOLUS II 800 S / SOLUS II 1000 S storage ta ks do ot
have hot water heat excha gers. This is useful for operatio
with a existi g water storage ta k or tra sfer statio , for
example. Otherwise, the storage ta ks are the same as the
SOLUS II 800.
SOLUS II 800 PM / SOLUS II 1000 PM
This buffer module does ot have i tegrated heat excha g-
ers. Otherwise, the dime sio s a d co ectio s are the
same as for the SOLUS II 800 / SOLUS II 1000. This allows
the storage ta k capacity to be i creased simply i co ju c-
tio with the SOLUS II 800, 850 a d 1000 , e.g. for solid
fuel boilers. See sectio 5.3, page 11 for co ectio i struc-
tio s.
COMFORT-PRO line:
SOLUS II 560 L / 850 L / 1050 L / 2200 L
The SOLUS storage ta ks i the COMFORT-PRO li e offer
other adva tages, which make them the leadi g edge tech-
ology for combi ed solar storage ta ks:
Desig ed for particularly high hot water tap output. The-
refore, they are eve suitable for apartme t buildi gs, or
the temperature of the hot water sta d-by volume ca be
kept to a mi imum. This facilitates i creased solar utilisa-
tio a d is a requireme t for operatio with heat pumps.
Heat loss is mi imised via the alumi ium reflector i the
cyli der a d the PP i serts for practically complete pre-
ve tio of microcirculatio losses via the storage ta k
co ectio s.
SOLUS II 560 NFL
O request, the SOLUS II 560 L is also offered with a addi-
tio al heat excha ger as a local a d district heat tra sfer
statio with a solar heat excha ger a d i tegrated water
heater. It is also well suited for system separatio for u der-
floor heati g systems. Further i formatio available o re-
quest.
1.1 Special advantages
Consolar stratified conduction system:
I the pate ted thermosipho heat excha gers, optimised
flow co trol a d the chim ey effect result i very low-loss
heat tra sfer i the cou ter-flow. The heat tra sfer is co sid-
erably better tha with free-flow heat exca gers with the
same surface area.
Hygienic water heating:
Co ve tio al hot water storage ta ks ca have hygie e
problems (legio ella). I the
SOLUS II series, the hot water is heated i a co ti uous
flow, a d is therefore i a perfect hygie ic co ditio eve at
temperatures u der 60 °C.
Rapid availability thanks to stratified charging:
The riser tube with chim ey effect a d the
Co solar co trol logic e sure that the storage ta k water is
immediately heated to a usable hot water temperature a d
stratified to the top. If the irradiatio is low, the middle stor-
age ta k area is charged, or feedi g is impleme ted via a
automatic ball valve for pre-heati g the lower storage ta k
area.
High storage capacity through stratified discharging:
Stratified dischargi g sig ifica tly i creases the thermal
capacity of the SOLUS II storage ta ks compared with co -
ve tio al combi ed storage ta ks with fresh water helical
tubes. This results i less freque t backup heati g a d
lo ger availability.
Reduced system costs:
The small pipe diameter required i the solar circuit, a d the
i tegrated boiler supply switchi g valve reduce the i stalla-
tio costs for the system.

TD SOLUS II: Description of the combined storage tank
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COMFORT PRO Line SOLUS II 1050 L / 2200 L
***
EPS insulation in the lid area es ecially thick
Hygienic hot water via hot water heat
exchanger* (backu heater)
Convection barriers
Run-off i e for cooled storage tank water
Steel ressure tank for direct connection to
the boiler and heating circuit
To charging: Riser tube for solar heated
buffer water for immediate usability of
solar heat **
Combined baffle for BS/HS
Connections with baffle for low-mixture
stratification of the heating returns
Preheating: Ball valve for charging at low
solar irradiation**
Solar heat exchanger*
Flow arrows for buffer water
Venting valve and hose
Boiler su ly BS1
Hot water outlet
Solar in ut (SOLAR HOT)
Boiler su ly BS2
Heating su ly HS
Heating / boiler return R1/2
Solar outlet (SOLAR COLD)
Cold water inlet & circulation ***
Heating / boiler return R3
(e.g. wood boiler)
* The heat exchangers are particu ar y
effective and re y on the counterf ow princi-
p e.
** Efficient storage tank management via optimised contro
using CONTROL series
*** 560 L and 850 L: Top co d water connection
COMFORT Line SOLUS II 550 / 800 / 1000
Flow arrows
EPS insulation in the lid area
es ecially thick
Hygienic hot water via hot water
heat exchanger*
Convection barriers
Run-off i e for cooled storage tank water
To charging: Riser tube for solar heated
buffer water for immediate usability of
solar heat **
Steel ressure tank for direct connection to
the boiler and heating circuit
Combined baffle for BS/HS
Connections with baffle for low-mixture
stratification of the heating returns
Preheating: Ball valve for charging at low
solar irradiation
Solar heat exchanger*
Cold water inlet & circulation
Boiler su ly BS1
Hot water outlet
Solar in ut (SOLAR HOT)
Boiler su ly BS
Heating su ly HS
Heating / boiler return R1/2
Solar outlet (SOLAR COLD)
Heating / boiler return R3
(e.g. wood boiler)

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Plastic feet (except SOLUS II 2200 L):
Specially developed plastic feed reduce heat co ductio to
the floor.
High
heat loss
Low
heat loss
Conventional
steel su ort
foot
Floor
SOLUS lastic
feet
ALU-EPS insulation (reflector only included in
COMFORT-PRO Line):
ALU-EPS i sulatio greatly reduces heat losses. The cyli der
reflector sig ifica tly reduces dissipatio losses. The EPS
foam used has a good i sulati g value.
Without ALU-EPS
insulation
With ALU-EPS insu-
lation
Cylinder walls Insulation
ALU-EPSDämmung
mit reduziertem Strahlungsaustausch
Aluminium foil
Connections with thermal breaks:
Due to the sipho ed fitti g of the copper a d steel co ec-
tio s to the cyli der, the otherwise high heat losses are
greatly reduced. Special baffles are fitted i the ta k to pre-
serve the feedi g stratificatio .
Without
thermal
brake
With thermal
brake
Standard storage tank
SOLUS storage tank (hot)
PP inner i e (COMFORT PRO only)
Connections at the bottom (cold)
Combined baffle:
SOLUS combi ed storage ta ks type 2008 have bee spe-
cially developed for efficie t operatio i co ju ctio with
heat pumps.
The combi ed baffle is used for low turbule ce stratificatio
of large heat pump supplies, desig ed for 30 l/mi (higher
flow rates result i a larger mixi g zo e).
2Planning aid
2.1 Transport
The storage ta ks may o ly be tra sported vertically i ve-
hicles. For carryi g, there are ha dles o the storage ta ks.
Storage ta ks may o ly be lifted freely if all ha dles are
used simulta eously.
2.2 Connection to the drinking water supply
Hot water circulation:
The circulatio li e is co ected to the cold water co ec-
tio of the storage ta k. As i all water heaters, hot water
circulatio e tails sig ifica t heat losses. This also gradually
reduces stratificatio . The circulatio pump should ot ru
co ti uously, as otherwise u ecessarily high heat losses
result i the pipi g system. For this reaso , we recomme d
operati g the circulatio pump with temperature co trol or
i i terval mode (most CONTROL co trollers co tai this
fu ctio ).
Mixed installation:
Whe the SOLUS II storage ta ks are co ected to a galva-
ised steel hot water pipe, the steel pipe may be corroded
whe ewly i stalled i particular due to the electrochemical
series. If you wa t to avoid this risk, you should ot use the
storage ta ks. If you are i doubt,
the Co solar support team will be happy to advise you.
Water quality:
The quality of the water used to fill the ta k must comply
with VDI 2035 for heati g water.
NOTE:
S itable meas res (fl shing the system, filters etc.) m st
be taken to ens re that existing components in the heat-
ing system do not allow other materials and s bstances
(e.g. sl dge, leak sealant, anticorrosive agents etc.) to
enter the storage tank.
The pH value of the dri ki g water co ected to the hot
water heat excha ger must be betwee 7.4 a d 9.5. If the
pH value is betwee 7.0 a d 7.4 the TOC value may ot
exceed 1,5 mg/l (g/m
3
) (i accorda ce with DIN 50930-
6). If the water hard ess is 8° dH or more, ri si g taps are
recomme ded for the cold water i let a d the hot water
outlet. For use with water high i limescale, limescale ex-
perts recomme d limescale co versio or water treatme t
processes for all solar heati g systems with 14° dH a d
upwards (hard water). You ca ask your local water supply
compa y to fi d out the water hard ess. Ask your i staller
for advice o this matter.
Expansion vessel:
Volume compe satio vessels, which compe sate for ther-
mal expa sio , are ot ecessary for the SOLUS II series,

TD SOLUS II: Planning aid
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due to the low heat excha ger volume for the hot water
circuit. A water-shock damper is recomme ded to preve t
safety valve drippi g.
Increasing the pouring capacity:
To further i crease the pouri g capacity,
SOLUS II storage ta ks ca be operated with a hot water
storage ta k a d a recirculatio pump
(see CONUS 502 tech ical docume tatio ).
Hot water mixer:
To preve t scaldi g at high storage ta k temperatures, a hot
water mixer must be provided dow stream of the storage
ta k outlet. A hot water mixer is available as a accessory
(item o. ZB001).
2.3 Connection to the solar power system
Collector:
The SOLUS II series is equally suitable for operatio with flat
a d evacuated tube collectors. The tech ical data (page 12)
co tai s recomme ded values for collector surface areas.
Smaller surfaces do ot charge the ta k fully, larger sur-
faces i crease the solar yield which ca be used for heati g
support i particular, but lead to freque t system system
sta dstills i the summer, whe the heat ca ot be dissi-
pated elsewhere.
Pipe diameters and pump:
The circulatio of the solar circuit is ru with reduced flow
compared to co ve tio al solar power systems. The re-
quired pipe diameters must be calculated i co ju ctio
with the collector data a d the selected pump.
Controller:
Operatio of the SOLUS II storage ta ks with a CONTROL-
series co troller e sures optimal stratified chargi g. If third
party co trollers are used, the maximum permissible i let
temperature at the solar heat excha ger must be observed.
This temperature is 110 °C; the solar co troller must be de-
activated at the correspo di g collector temperature.
See the co ectio i formatio (from p. 6) or the co troller
co ectio i formatio for the CONTROL series for i forma-
tio o possible co ectio s a d co troller co ectio s.
2.4 Connection to the boiler and heating circuit
Boiler:
The SOLUS II storage ta ks allow a ra ge of heati g circuits
a d heat ge erators to be co ected to poi ts i accor-
da ce with their temperatures. Boiler a d heati g circuits
are co ected directly to the storage ta k. This allows boiler
outputs of up to 80 kW to be tra sferred. The SOLUS II
storage ta ks are desig ed for low retur temperatures.
Whe usi g boilers which are se sitive to low retur tem-
peratures, appropriate precautio s must be take , espe-
cially whe co ectio R3 is used.
The target temperature for the hot water sta dby portio set
o the boiler or solar co troller must be approx. 10-15 K
greater tha the hot water temperature actually required,
depe di g o the tap output required. The boiler supply
temperature for backup heati g must be a further 5 K above
the described target temperature of the storage ta k. For
this purpose, it may be ecessary to throttle the boiler sup-
ply.
Connections:
The SOLUS II storage ta k co ectio s are i the vertical
li e of the i sulatio seal strip. They are equipped with baf-
fles for low turbule ce stratificatio up to 20 l/mi . The baf-
fle of boiler supply 2 is suitable for up to 30 l/mi .
Heating circuit:
All co ected heati g circuits must be diffusio -resista t. If
that is ot guara teed, the systems must be separated.
NOTE:
In heating circ its where sl dge deposits are to be ex-
pected, we recommend the installation of a sl dge filter
or separator (vendor e.g. Spiro).
We recomme d the use of a heati g circuit mixer to guar-
a tee the supply temperature, which is depe de t o the
exter al temperature. This allows the e ergy co sumptio to
be reduced sig ifica tly. A complete heati g circuit statio
is available as a accessory.
2.5 Parallel connection of two SOLUS II storage
tanks
Parallel co ectio of the heat excha ger a d storage ta k
co ectio s allows the storage ta k capacity a d the output
of hot water a d solar heat excha gers to be doubled,
while halvi g pressure losses. The temperature se sors are
co ected to o e of the two storage ta ks.
2.6 Electrical backup heating
A electrical heati g rod sleeve with 1 1/2" male thread is
positio ed such that heat ca be used for space heati g via
the heati g supply.
Electrical backup heati g should be avoided where possible
due to the low efficie cy of the power statio s.
However, i exceptio al cases, it ca make se se for the
few backup heati g hours i summer, e.g. i co ju ctio
with a solid fuel bur er operated i wi ter o ly.
Heati g rods must be fitted with a safety temperature limiter
i accorda ce with EN 60335 Parts 1 a d 2.
2.7 Materials
The most commo ly used materials are as follows, i the
order of their weight shares: steel, copper, EPS foam
(melami e resi foam as a cover for SOLUS II 2200), poly-

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propyle e, brass a d EPDM. The SOLUS II series is free of
PVC, CFC, HFCs a d fibreglass i sulatio .
2.8 Standards
The SOLUS II series of storage ta ks are vertical u its made
of St 37-2, i accorda ce with DIN 17100 with quality cer-
tificatio . The cyli ders comply with DIN 4753 for hot water
storage for heati g systems with supply temperatures of up
to
90 °C, i accorda ce with DIN 4751 Part 1.
2.9 Return acceptance statement
At the e d of their lo g service life, Co solar takes back the
storage ta ks a d reuses the materials. For this purpose, the
storage ta k is to be faste ed to a pallet, a d se t back to
Co solar. Upo arra ged ha dli g through Co solar, the
storage ta k is to be put i positio a d made ready to be
loaded o to a HGV with a lifti g platform, a d Co solar is
to be i formed for collectio .
NOTE:
The information and diagrams in this technical doc men-
tation do not claim to be complete, and are no replace-
ment for professional planning. S bject to technical mo-
difications and errors.
3Connection with boiler buf-
fering
A lication, use
Solar heating su ort
Buffering for gas, oil, ellet and solid fuel boilers
Water heating
3.1 Advantages, limits
Solar heat ca be used for space heati g, especially if the
heati g circuit supply temperatures are lower tha the hot
water sta dby temperature.
Eve great boiler outputs are buffered. This facilitates
lo ger ru times a d sta dstill times with low emissio s.
Eve i modulati g boilers, bufferi g may be be eficial
for the o -modulati g partial load ra ge.
The boiler ca cool dow duri g sta dstill.
3.2 Connection rules
The heati g circuit supply is ge erally fitted to the corre-
spo di g storage ta k co ectio (HS), the boiler supply
is co ected to BS.
The boiler retur is co ected to R1/2. It is o ly co -
ected to R3 for wood-fired boilers which require a large
buffer volume.
The heati g circuit retur is ge erally co ected to the
same co ectio as the boiler retur . A T co ector is
provided for this o storage ta k co ectio R1/2 to pre-
ve t wro g circulatio through the boiler whe the boiler
pump is at sta dstill.
If the retur temperature of the heati g circuit is low (wall
or u derfloor heati g), the lowest co ectio o the
SOLUS II is selected.
The flow for hot water rechargi g must be set such that
the boiler supply temperature is approx. 5 K above the
hot water backup heati g temperature set.
A sample system diagram with collectors a d hot water
co ectio is provided below. I the other diagrams, o ly
the boiler a d heati g circuit are show . The diagrams are
i complete to make them clearer - e.g. safety equipme t is
ot show .
Detailed co ectio diagrams are provided from sectio 0
o page 12, as well as i the tech ical docume tatio for
the CONTROL series.

TD SOLUS II: Connection with boiler b ffering
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3.3 System diagram with solar power system and
hot water circuit
Solar-Aus
Collector U derfloor
heati g
HP
M
Pz
Sup
Ret
Boiler
Solar cold
Solar hot
Ps
HS
R1/2
R3
BS 2
CW
HW
Co ectio for heat pumps a d ge erally for optimised
solar yield:
Solar-Aus
Collector U derfloor
heati g
Ph
M
Pz
Sup
Ret
Heat pump/
Boiler
Solar cold
Solar hot
Ps
HS
R1/2
R3
BS 2
BS 1
CW
WW
U1
U2
Hot water backup heati g: U1 a d U2 up.
Heati g operatio : U1 a d U2 dow .
Circulatio switchi g versio for thermal disi fectio of the
circulatio li e:
Pz
CW
3.4 Connection assignment for boiler and heating
circuit
3.4.1 One boiler, one heating circuit
See also diagram 0 o page 12.
Heati g
Circuit
70/50
60/40
SupRet
Boiler
HS
BS
>30°C R1
<30°C R3
Examp e 1:Heating circuit 70/50 to 60/40
Heati g
Circuit
70/50
60/40
SupRet
Wood-fired
boiler
HS
BS
>30°C R1/2
<30°C R3
Examp e 2: So id fue boi er
For solid fuel boilers (e.g. firewood), the boiler retur is
co ected to R3 to utilise the e tire storage ta k capacity. If
the heati g circuit retur is also co ected to R3, the full
capacity is available for heati g purposes. However, there
may be higher temperatures i the bottom of the storage
ta k, which decreases the
solar utilisatio .

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3.4.2 One boiler, two heating circuits
See also diagram 0 o page 12.
3.4.2.1 Standard connection
The supply of the two heati g circuits is fitted to the heati g
supply co ectio .
3.4.2.2 Cascade connection
Two heati g circuits with differe t temperature levels (e.g.
radiators a d u derfloor heati g) ca be co ected as a
cascade. This way, solar heat is optimally used, which leads
to particularly good solar yields.
The requireme t is that the radiator circuit is circulated co -
sta tly whe the floor circuit is i operatio or that the boiler
co troller ca mo itor two target temperatures at differe t
storage ta k positio s. See the tech ical docume tatio for
CONTROL 701
Heati g
Circuit 1
60/50
SupRet
HS
BS
Heati g
Circuit 2
35/25
>30°C R1/2
<30°C R3
Examp e 3: Heating circuits 60/50 and 35/25
3.4.3 Two boilers, one or two heating circuits
See also the diagrams 0 o page 12 a d 0, page 12.
Co ectio of each boiler retur :
Assignment of the heating circuit returns
The heati g circuit retur s are co ected as for a boiler
without a solid fuel boiler (see sectio 3.4.1).
3.4.4 Increased hot water requirement
If a volume greater tha the maximum hot water sta dby
volume is required, the heati g supply ca be co ected to
R1. The hot water se sor is the i serted i to se sor sleeve
FH D (small buffer bottom)
3.4.5 Instantaneous water heaters with integrated switching
valve or with two integrated pumps
The hot water a d heati g supply are co ected to o e a -
other dow stream of the i sta ta eous water heater for
i sta ta eous water heaters with i tegrated valve or a sec-
o d switchi g pump for hot water backup heati g. I sta ta-
eous water heaters without suitable co trol of the supply
temperature ca be equipped with a throttle valve to reach
the required supply temperature for hot water backup heat-
i g.
Heati g
Circuit
70/50
HW
I sta ta eous
water heater
HS
>30°C R1/2
<30°C R3
BS
Otherwise, the co ectio is as described above.
Examp e 4: Instantaneous water heater with integrated
switching va ve
3.4.6 Solid fuel boiler or low temperature boiler with
minimum return temperature
A thermostatic mixer guara tees a mi imum retur tem-
perature.
Boiler
Q < 80 kW
HS
>30°C R1/2
<30°C R3
BS
Examp e 5: Integration of a so id fue boi er with return tem-
perature increase via thermostatic mixer

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4Connections with
return increases
A lication, use
Solar heating su ort
Water heating
In articular for boilers which do not require buffering
(e.g. modulating boilers or boilers with large ca acities).
4.1 Advantages, limits
Simple co ectio ( o i terve tio i existi g heati g
co trol required)
Solar heat is used for space heati g, eve if the tempera-
tures i the collector are ot sufficie t for direct heati g.
Maximum use of the solar e ergy due to the low collector
a d storage ta k temperatures required.
4.2 Connection rules
The retur from the storage ta k to the boiler is co ected
to the HS.
The lower the retur temperature of the heati g circuit, the
lower the co ectio o the SOLUS II.
Return from heating circuit to storage tank:
Max. retur temperature Retur co ectio
> 40 °C R1
< 30 °C R3
Tab e 5
4.2.1 Return increase with boiler
See also diagram 0 o page 12.
I sta ta eous
water heater
HS
>30°C R1/2
<30°C R3
BS
HW
Heati g
Circuit
50/35
Examp e 6: Heating circuit 50/35
4.2.2 Instantaneous water heaters with integrated switch-
ing valve or with two integrated pumps
With i sta ta eous water heaters with i tegrated valve or
seco d i tegrated pump for switchi g for hot water storage
ta k backup heati g, storage ta k chargi g pump P
Sp
a d
heati g circuit pump P
H
are ot required. I this case, how-
ever, a mixed heati g circuit ca ot be impleme ted.
Therefore the collector surface area selected should ot be
too large i order to preve t excessive heati g supply tem-
peratures. U mixed heati g circuits ca ot be used for u -
derfloor heati g systems if the permitted operati g tempera-
tures of the u derfloor heati g systems are exceeded.
I sta ta eous
water heater
HS
>30°C R1/2
<30°C R3
BS
HW
Heati g
Circuit
50/35
H
Examp e 7: Instantaneous water heater with integrated
switching va ve

TD SOLUS II: Connections for expanding capacity
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4.2.3 Two heating circuits
The supply of the two heati g circuits is fitted to the boiler
supply. The retur from heati g circuit 2 (lower temperature
level) is co ected to the storage ta k i accorda ce with
table 5, but without a switchi g valve.
The retur from heati g circuit 1 is co ected i accorda ce
with table 5.
Boiler
Q mi <10kW
HS
>30°C R1/2
<30°C R3
BS
Heati g
Circuit 1
50/35
Heati g
Circuit 2
35/25
PH1 PH2
SP
Examp e 8: Heating circuit 1: 50/35, Heating circuit 2:
35/25
4.2.4 Limiting the boiler return temperature
I boilers or i sta ta eous water heaters with a maximum
permitted boiler retur temperature, the retur temperature
ca be restricted via a thermostatic mixi g valve M.
I sta ta eous
water heater
HS
>30°C R1/2
<30°C R3
BS
Heati g
Circuit
50/35
M
Examp e 9: Limiting the boi er return temperature
5Connections for expanding
capacity
A lication, use
Solar heating su ort for larger systems
Buffering solid fuel boilers
Double ca acity for hot water and solar heat exchangers for two SOLUS II
storage tanks.
5.1 Advantages, limits
Simple expa sio of the storage ta k capacity via
parallel co ectio with a buffer storage ta k
Greater storage ta k volume possible eve with
restricted access co ditio s.
Retrofitted co ectio possible.
5.2 Connection rules
5.2.1 Parallel connection of two SOLUS II storage tanks
(2nd storage tank: standard or buffer module)
All co ectio s co ected to the boiler or heati g circuit
are joi ed horizo tally
The followi g co ectio s must always be co ected i
parallel, eve if o boiler or heati g circuit is co ected:
BS1, HS, R3
Diameter a d le gth of the co ecti g pipes:
Max. 0.5 m at 1", max. 1,2 m at 1 1/4"
Otherwise, the storage ta k co ected i parallel a d
buffer are co ected i accorda ce with the co ectio
rules which apply for SOLUS II storage ta ks.
The Solus II 1000 PM is a exte sio of the Solus II 1000
a d ca be co ected together i parallel.
Attention:
Due to differi g heights, co ectio combi atio of the
Solus II 1000 PM a d the Solus II 1050 l is ot possible.
General rules:
The boiler a d heati g circuit are co ected i the middle
with dow ward sipho s to the co ectio li es.

TD SOLUS II:
11
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5.3 Connection examples for parallel connection
5.3.1 Boiler buffering
Boiler
HS
>30°C R1/2
<30°C R3
BS
Heati g Circuit
50/35
SOLUS SOLUS or
Buffer module
BS1
Examp e 10: Heating circuit 50/35, oi boi er
5.3.2 Return increase
Boiler
HS
>30°C R1/2
<30°C R3
BS
Heati g Circuit
50/35
SOLUS SOLUS or
Buffer module
BS 1
Examp e 11: Heating circuit 50/35, oi or gas boi er
5.3.3 Parallel connection of the heat exchangers of two
SOLUS II storage tanks
CW
CW HW
HW Solar hot
Solar cold
SOLUS SOLUS
Examp e 12: Connections for water and the so ar power
system
1)
On the SOLUS II 1050 L and SOLUS II 2200 L the co d water con-
nection is under the so ar co d connection.
5.4 Connection example for cascade connection
For solid fuel boilers, the buffer volume ca be i creased
with a buffer module by cascade co ectio of a SOLUS.
The buffer module is charged by the solid fuel boiler a d
discharged by the heati g circuit. The solar power system
charges the SOLUS, which is discharged via hot water tap-
pi g, with the result that the buffer module remai s cold i
the summer.
Boiler
HS
>30°C R1/2
<30°C R3
BS
Heati g Circuit
50/35
SOLUS Buffer module
HS
R1/2
R3
BS
BS 1
Examp e 13

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6Technical data
Storage tank volumes, weight: Unit SOLUS II 550 /
SOLUS II 560 L /
NFL
SOLUS II 800/
SOLUS II 850 L
SOLUS II 1000/
SOLUS II 1050 L
SOLUS II 2200 L
Cyli der material acc. to DIN
17100
- S 235 JR
(St 37-2)
S 235 JR
(St 37-2)
S 235 JR
(St 37-2)
S 235 JR
(St 37-2)
Empty weight (approx.) kg 137/147/157 175/190 225/255 395
Total weight, full kg 700/710/720 992/1007 1245/1275 2620
Capacity l 550 800 1000 2200
Max. permissible temperature °C 90 90 90 90
Maximum permissible cyli der
pressure
bar 6 6 4 4
Solar heat exchanger: Unit 550/560 L, NFL 800/850 L 1000/1050 L 2200 L
Material - Cu Cu Cu Cu
Surface area
1)
m
2
2 2 2/3,1 3,1
Capacity l 0,8 0,8 0,8/1,9 1,9
k x A value (for water) kW/K 0,4
2)
0,8
3)
0,8
3)
/0,95
4)
0,95
4)
Specific volume flow
5)
l/m
2
h 25 25 25/20 20
Mi imum solar flow l/mi 1,7 3 3 3
Pressure loss (for water) mbar 19
2)
58
3)
58
3)
/70
4)
70
4)
kvs (for water) m
3
/h 1 1 1/1,3 1,3
Max. permissible temperature °C 110 110 110 110
Max. permissible operati g pres-
sure
bar 8 8 8 8
1) Significant y better performance than conventiona heat exchangers due to chimney effect with equa surface area, 2) 2,3 /min, 3) 4 /min, 4) 5,7 /min, 5) re ative
to the co ector surface area
Hot water heat exchanger: Unit 550/560 L, NFL 800/850 L 1000/1050 L 2200 L
Material - Cu Cu Cu Cu
Surface area
1)
m
2
3,1/4,1 3,1/4,8 3,1/6 6
Capacity l 2,2/7,1 2,2/10,4 2,2/14,7 14,7
k x A value kW/K 1,7/2,0
2)
2,0
2)
/2,4
2)
2,0
2)
/4,5
3)
4,5
3)
Output ra ge kW 30-45/40-55 40-55/45-60 40-55/50-70 50-70
Pressure loss mbar 220/280
2)
220
2)
/300
2)
220
2)
/360
2)
360
2)
kvs m
3
/h 1,28/1,1 1,28/1,1 1,28/1,0 1,0
Max. permissible temperature °C 90 90 90 90
Max. permissible operati g pres-
sure
bar 8 8 8 8
1) Significant y better performance than conventiona heat exchangers due to chimney effect with equa surface area, 2) 10 /min, 3) at 15 /min
Thermal insulation: Unit 550/560 L, NFL 800/850 L 1000/1050 L 2200 L
Material - EPS/ALU-EPS
1)
EPS/ALU-EPS
1)
EPS/ALU-EPS
1)
ALU-EPS
1)
,
4)
Side i sulatio thick ess cm 10+2,5 10+2,5 10+2,5 10+2,5
Lid i sulatio thick ess cm 14 14 14 14
EPS heat co ductivity
2)
W/mK 0,037 0,037 0,037 0,037
Heat loss3) W/K 2,5/2,3 3,1/2,9 3,4/3,1 4,5
Sta dby portio losses
3)
W/K 0,7/0,5 0,8/0,6 0,9/0,7 1,2
Cooli g 24 h
3)
°K 3,5/3,3 3,0/2,7 2,8/2,6 1,9
1) Seaing surfaces partia y soft PU foam, 2) ambda vaues 40 °C, 3) cacu ated vaues in aboratory conditions (storage tank heated through) storage tank 60°C /room 20
°C, 4) id me amine resin foam.
Dimensioning: Unit 550/560 L, NFL 800/850 L 1000/1050 L 2200 L
Max. withdrawal rate at 45 °C
1)
l/mi 16/18 20/25 20/30 30
NL performa ce i dicator (10 kW
boiler)
2)
- 1,0/1,7 1,0/4,2 1,8/5,7 7,3
NL performa ce i dicator (30 kW
boiler)
2)
- 1,4/2,6 1,5/6,4 3,1/6,9 7,3
Apartme ts
3)
- 1/1-2 1-2/1-2 1-2/1-4 1-4
Collector surface area (flat plate)
3)
m
2
5-10 8-16 8-16/11-22 11-22
Collector surface area (evacuated
tube)
3)
m
2
4,5-9 7-14 7-14/10-20 10-20
Solar pipi g diameter
3)
mm 12-15 15-18 15-22 15-22
Max. boiler output kW 80 80 80 80
1) Charged standby portion 60 °C, 2) va ues app ied for a charged standby portion at 60 °C, higher va ues are possib e when fu y charged or at higher tempera-
tures. As there is no ca cu ation method for NL performance indicators for combined storage tanks, the va ues are on y for orientation purposes 3) recommended
reference va ues

TD SOLUS II: Dimensions
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7imensions
550/
560L/
NFL
800
850L
S /PM
1000
S / PM
1050L 2200L Connections
1790 2090 2290 2100 2160 Min. hight of sealing
1630 1940 2350 1970 2130 Diagonal height
1750 2050 2245 2060 2060 Height with insulation
1670 1980 2180 1990 1990 Height without
insulation
1405
1470
1630
1685
1830
1885
1680
/**
1680
/**
Cold water + circulation**
BS1 (short)***
22 Cu
1" f. t.
1215 1430 1630 1480 1480 Hot water
22 Cu
1115 1260 1315 1280 1280 Solar in ut
15 Cu
775 1065 1060 960 960 BS (boiler su ly)
1“ m.t.
655 950 940 840 840 HS (heating su ly)
1“ m.t.
500 770 790 680 680 R1 (return > 45 °C)
1“ m.t.
190 190 190 460 460 Solar out ut
15 Cu
/ / / 400 400 Cold water + circu
lation*
22 Cu
95 95 95 270 270 R3 (return < 35 °C)
1“ m.t.
700 790 790 850 1300 Ø without insulation
960 1060 1060 1110 1560 Ø with insulation
Exp anations:
Dimensions in mm from the ground
15/22 Cu: 15/22 mm copper pipes with Conex screw fittings
f.t: fema e thread
m.t: ma e thread
** The co d water and circu ation connection on the
SOLUS II 1050 L and SOLUS II 2200 L are under the
so ar co d connection.
*** Connection BS1 is 15 mm ong and intended for para e con-
nection with a buffer modu e.
Connections/
Sensor sleeves
Unit
550/
560L/
NFL
800
850L
S/PM
1000/
S/
PM
1050L
2200L
Suitable for 6 mm
sensor
Venting valve
and hose
Sensor sleeve A hot wa-
ter, small
mm 1245 1535 1560 1425 1425
(Storage tank sensor to ) (l) 100 120 220 220 550
Sensor sleeve B hot water mm 1045 1335 1340 1225 1225
(Storage tank sensor to ) (l) 175 220 330 330 820
Sensor sleeve C buffer to
mm 925 1220 1210 980 980
(Storage tank middle)
Sensor sleeve D buffer
bottom
+ sensor E
mm 720 990 1010 930 930
Sensor sleeve F storage
tank sensor bottom
mm 215 240 240 250 250
(): Information within brackets is conform to sensor description
of Contro ine
1) For assemb y of insu ation when cei ing height is ow, the
boi er's stand supports have to be screwed in comp ete y to
assemb e the insu ation top. P ease do so before assemb ing
edge insu ation! Otherwise additiona 6 cm of cei ing height
are required for assemb y and dismant ing of insu ation top.
Cleara ce for
attachi g the lid: 40..100 mm

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8Installation
8.1 Before connecting
NOTE:
Adherence to these specifications is a prereq isite for
the pholding of warranty claims.
Please refer to the curre t tech ical docume tatio for de-
tailed tech ical i formatio o desig i g a d pla i g a
system with SOLUS II storage ta ks.
8.1.1 Heating, water quality
Use the storage tank in closed heating systems only. In
heating circ its which are not 100% sealed - e.g. plas-
tic nderfloor heating systems -, a hydra lic separation
of storage tank and heating circ its is req ired to pro-
tect against oxygen which is diff sed into the heating
water.
Please ens re that yo comply with the instr ctions on
water q ality in the technical doc mentation (no addi-
tion of s bstances to the heating water; if necessary,
sl dge separators or filters m st be fitted).
8.1.2 Hot water pipelines, water quality
The heat excha gers i SOLUS II storage ta ks are made
of copper. The pipes co ected to them should therefore
also be made of copper, stai less steel or plastic to preve t
corrosio of the pipes (see "Mixed i stallatio " i the tech-
ical docume tatio ). The water quality regulatio s for
copper pipi g must be observed (see water quality, tech.
docume tatio ).
8.1.3 Solar pipes, solar fluid
For solar pipi g, we recomme d copper pipes due to the
low resista ce a d the low heat loss compared with
stai less steel corrugated pipes. Co solar high-
performa ce collectors make greater dema ds of the tem-
perature resista ce of the li es, which is why Co solar
recomme ds IsoCo ect HT Cu.
Do ot use larger pipe diameters tha ecessary, as oth-
erwise heat losses rise sharply. See "Tech ical Data" i the
tech ical docume tatio for recomme ded guideli e val-
ues.
Use a tifreeze approved for solar power systems based o
propyle e glycol i the prescribed mix ratio o ly. We rec-
omme d Tyfocor LS (ready mixed) which ca be pur-
chased from Co solar. The a tifreeze must be checked
regularly i accorda ce with the regulatio s (see also the
tech ical docume tatio for CON-SOLARSTATION a d
"Accepta ce a d mai te a ce protocol").
8.1.4 Pipe insulation:
The i sulatio of the pipeli es has a major i flue ce o the
e ergy savi gs which ca be achieved with the solar
power system. It is therefore recomme ded to use co sid-
erably thicker i sulatio o all pipes (solar, hot water,
heati g pipes) tha is required i accorda ce with the
Germa Heati g System Ordi a ce (HZA lV), e.g. with
125 % to 150 % i stead of 100 % i sulatio thick ess.
8.1.5 Space requirements
I stall the storage ta ks so that they ca be accessed for
mai te a ce, to guara tee access to temperature se sors
a d co ectio s. This allows the i sulatio to be attached
a d adjusted eve after the system has bee co ected. If
the ceili g is low, the lid i sulatio ca be fitted while the
ta k is tilted a d before it is positio ed o the feet. To save
space, the lid i sulatio a d the cover ca also be sepa-
rated.
8.2 Transport
The storage ta k must always be kept upright duri g tra s-
port!
It ca be tra sported horizo tally by ha d. Heavy vibra-
tio a d impact should be avoided.
8.3 Storage
SOLUS II storage ta ks may o ly be stored a d i stalled i
rooms protected agai st frost.
8.4 Installation
I stallatio a d commissio i g may o ly be realised by
a specialist compa y approved by the local water sup-
ply compa y. This specialist compa y thus assumes re-
spo sibility for correct fitti g work.
Co tact with materials (e.g. some solve ts) which ca
affect the polystyre e or other compo e ts of the stor-
age ta k is to be avoided.
Whe i stalli g a d operati g the SOLUS II storage
ta k, keep a mi imum dista ce of 0.5 m from hot ob-
jects (>90 °C) (e.g. stovepipes, brazi g torchs).
Place the storage tank on the plastic feet before yo
start fitting the piping (except SOLUS II 2200 L).
To do so, refit the bolts which held the storage ta k o
the woode pallet. I sert the 3 plastic feet from be eath
i to the bolt heads.

TD SOLUS II: Installation
15
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Alig the storage ta k before it is filled: Adjust plastic
feet o the side flat areas usi g a size 30 ope -e ded
spa er. Check usi g a spirit level.
The average distance between the lower edge of the vertical ring
and the floor must be 40 mm to allow the insulation to be fitted!
The surface pressure by the feet is betwee 2.0 a d 3.5
N/mm² depe di g o the storage ta k size. Check the
floor structure - if ecessary, the local pressure must be
reduced by i creasi g the co tact surface:
After i stalli g the storage ta k (see p. 2), push the
rou d floor i sulatio u der the cyli der (tilt the storage
ta k slightly):
8.5 Hydraulic connection
The storage ta k is co ected to the differe t circuits i
accorda ce with the pla i g aids a d a co ectio dia-
gram described i the tech ical docume tatio of the
CONTROL u it.
Co ectio : Comply with regulatio s of the local water
supply compa ies a d DIN sta dards. Make all co ec-
tio s pressure resista t. All circuits must be completely
sealed, so that o atmospheric oxyge ca e ter the sys-
tem.
8.5.1 Boiler and heating circuit
The co ectio s ca also be piped to the side: with 90°
be ds, e.g. with u io uts a d flat gaskets.
Recomme datio : Sludge filter o the heati g circuit re-
tur .
8.5.2 Solar circuit
Do ot co ect the solar circuit a d operate the solar
pump u til the storage ta k has bee filled.
Recomme datio : Smoothi g sectio at the lowest poi t of
the solar circuit supply, so that corrosio products caused
by oxyge leaks are deposited there.
8.5.3 Cold and hot water connection
Make all co ectio s i accorda ce with the respective
regulatio s, i particular i accorda ce with the DIN sta -
dards (see the diagram a d desig atio s below).
The cold water co ectio be d is e closed with models
SOLUS II 560 L, SOLUS II 800/850 L a d SOLUS II 1000
to preve t tra sport damage. Remove the protective sleeve
(i the ce tre o the upper cyli der lid), fit the co ectio
be d with the clamp screw fitti gs. Alig with the other
co ectio s.
Safety devices: I stall the compo e t-tested safety devices
i accorda ce with DIN 4753 Part 1 Par. 6.3.1 i the cold
water supply pipe.
Venting valve
The ve ti g valve is fitted to the 3/8" co ectio provided
for this purpose via the armoured hose (i cl. 2 x flat seals)
i cluded i the scope of supply. I sert the ve ti g valve
betwee ta k a d i sulatio before fitti g the i sulati g
lid.
Membrane safety valve requirements
Spri g loaded
Compo e t tested
Co ectio diameter DN 20 (up to max. permitted heat-
i g output 150 kW)
Ca ot be seald off by the hot water storage ta k
armoured hose
ve ti g valve
For fitti g the cover,
place the hose here.

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Component designations:
1. Shut-off valve
2. Pressure-reducing valve (if the
network ressure is greater than
8 bar and there is no ressure-
reducing valve at the building
connection)
3. Test valve
4. Non-return valve
5. Manometer connection with
manometer
6. Shut-off valve
7. Safety valve
8. Drain funnel
9. Drainage valve
10. Sanitary ex ansion vessel, e.g.
water-shock dam er
11. Thermostatic hot water mixer
Safety valve (7):
No dirt traps or other co strictio s may be fitted i the
supply pipe.
Close at a pressure drop of 20 % of the respo se pres-
sure.
To be i stalled i a easily acessible locatio , so that it
ca be ope ed duri g operatio . A war i g otice with
the followi g text must be displayed at the safety valve
or at its blow-off li e: "For safety reaso s, water may
escape from the blow-off li e duri g heati g! Do ot
close".
I stall appropriately to e sure that o-o e is e da -
gered by hot water or steam from the valve.
Blow-off line:
The mi imum size is the diameter of the safety valve
outlet
Max. 2 be ds, 2 m i le gth
Max. 3 be ds, 4 m le gth possible if o e size larger.
Layi g with gradie ts
The drai pipe dow stream of the drai fu el must
have at least twice the diameter of the valve.
Water-shock damper:
Thermal expa sio of the hot water i the heat excha ger
causes water loss through the safety valve. Optio al rem-
edy: Mou t water-shock damper dow stream of the o -
retur valve or at a y poi t i the hot water pipe.
Non-return valve (4):
The requireme ts pertai i g to the fitti g of a o -retur
valve, a d its desig (approval), are co tai ed i DIN
1988 a d DVGW worksheet W 376.
Pressure reducing valve (2):
I accorda ce with DIN 3320, a system operati g pres-
sure should be assig ed to the permitted operati g over-
pressure of the hot water heat excha ger. If the pressure i
the cold water supply pipe leadi g to the solar storage
ta k is over 8 bar, a pressure reducer (which has bee
tested a d approved as complia t with DVGW worksheet
W 375) must be i stalled to reduce the cold water pres-
sure to max. 8 bar. If mixer taps are used, a ce tralised
pressure reducer must be fitted.
rainage valve (9):
Water heati g systems must be fitted with a device (usually
at the cold water co ectio ) which facilitates drai i g the
system as completely as possible without disma tli g.
Fine filter:
If the water quality is poor or if the pipeli es are old, a
fi e filter must be i stalled upstream of the storage ta k
i let.
eliming method
If the water hard ess is 8° dH or more, ri si g taps are
recomme ded for the cold water i let a d the hot water
outlet. For use with water high i limescale, limescale ex-
perts recomme d limescale co versio or water treatme t
processes for all solar heati g systems with 14° dH a d
upwards (hard water). You ca ask your local water sup-
ply compa y to fi d out the water hard ess. Ask your i -
staller for advice o this matter.
Circulation line:
Co ect the circulatio li e to the cold water co ectio of
the storage ta k a d fit a check valve to preve t short cir-
cuit flows of cold water i to the hot water etwork. Oper-
ate the circulatio pump for short periods o ly (mi utes) to
preve t high heat losses a d a gradual mixi g of the stor-
age ta k. CONTROL u its provide suitable switchi g fu c-
tio s for this.
8.5.4 Thermostatic hot water mixer (11)
A thermostatic hot water mixer must be i stalled to restrict
the maximum hot water temperature, as there is o tem-
perature limiter fitted i the storage ta k.
8.5.5 Electric heating rod
To i stall a electric heati g rod, break out the pre-drilled
hole i the PS i sulati g shell a d use a sharp k ife (spray
the cutti g surface with silico e grease) to cut the EPS i su-
latio alo g the edge of the drilled hole.
After the electric heati g rod has bee i stalled, close the
hole with the cover provided for this purpose (delivered
with the electric heati g rod).

TD SOLUS II: Installation
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Last revised 05/2009
8.5.6 Clamp screw fittings
Hot water a d solar circuit co ectio s are fitted with
clamp screw fitti gs as sta dard. First positio the u io
u it, the the compressio fitti g o to the co ectio
pipes.
NOTE:
S pport sleeves m st be inserted for connection lines
made of soft copper piping.
I sert the e d of the pipe fully i to the clamp screw fitti g.
Tighte the u io ut by ha d a d the o e more tur
usi g a spa er (or 3/4 of a tur for 22 mm).
8.6 Filling
Flush the water a d heati g circuits.
Fill the storage ta k - ope the ve ti g valve while you
do so.
A small qua tity of water may escape from the i er
pipi g before the air escapes.
Fill the water a d heati g circuits.
Ve t the heati g circuits. While doi g so, ru the corre-
spo di g pumps.
See MA/TD CONSOLARSTATION for i formatio o
flushi g a d ve ti g the solar circuit.
Afterwards, check all clamp screw fitti gs agai a d tigh-
te them if ecessary.

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8.7 Installing the insulation
Thermal ins lation consist of:
1 Cover (SOLUS II 2200 L: flat disk)
2
I sulati g lid (SOLUS II 2200 L: 2
flexible i sulati g plates.
3 2 side parts (SOLUS II 2200 L: 3)
4 Floor i sulatio , rou d
5
Foam strips 100 x 100 for cyli -
der vertical ri g
6 Co ectio foam strips, pierced
7
3 foam strips, self-adhesive (Co -
vectio limiter)
8 Se sor cover
9 Plastic feet
10
Screw M12x50
(=screwi g storage ta k a d
pallet)
11
6 foam plugs for se sor holes ∅
35
12 8 plastic clips (i stallatio aid)
13 Hose with ve ti g valve
CW Cold water + circulatio
HW Hot water
S1 Solar i put
S2 Solar output
BS1 boiler supply (top)
BS2 boiler supply
HS heati g supply
R1_2
retur > 45 °C
R3 retur < 35 °C
SS
A…E
Se sor sleeve
Before fitting the side parts:
Attach the three e closed lo g foam strips (7) with self-adhesive tape to the storage ta k.
Close each strip to a ri g.
mm
SOLUS II
550 / 560
SOLUS II
800/850
SOLUS II
1000
SOLUS II
1050
SOLUS II
2200
A 240 260 260 310 325
B 610 860 890 760 820
C 1400 1580 1780 1580 1520
5
3
2
9
4
8
10
1
6
BS2
HS
R1
-
2
BS
1
CW
H
W
S1
S2
R3
SS
A
SS
B
SS
C
SS
D+E
SS
F
7
13
A
B
C
40 mm
11
12

TD SOLUS II: Installation
19
Last revised 05/2009
NOTE
Store all small parts caref lly ntil they are req ired for
installation.
TIP
Installation is easier if yo se 2 tension belts (not in-
cl ded).
Fit the 100 x 100 foam strips tightly arou d the cyli der
vertical ri g a d thef oor insu ation. Use adhesive o the
fro t faces:
Fit the connection foam strips, pierced over the co ec-
tio s:
Co ect the two side parts o the side of the co ectio
pipes to o e a other:
Latch the termi al strip i the first hook first.
If the cut-outs i the sides for the pipe feed-throughs are
ot quite ce tred, check the spaci g betwee the vertical
ri g a d the floor agai a d adjust usi g the feet.
3-4 Clip the p astic c ips to secure the termi al strip co -
ectio .
Co ect the other sides of the side i sulatio to o e a -
other a d secure them usi g the plastic clips to make i -
stallatio easier:
Check: Side parts without offset at the top? (So that the
i sulati g foam lid ca subseque tly be fitted without
gaps.)
Latch the strip of hooks i to the first hooks from top to
bottom.
I sert three short plastic clips o to the termi al strip be-
twee the four steel co ectio s:
Check that the foam seal is eve ly spread arou d the
i sulati g lid:
Fit the insu ating id so that it is i co tact with the e tire
surface of the side i sulatio a d is gripped slightly. This
is particularly importa t for a tight seal:
Tighte all hook strips u til the i sulatio is i tight co -
tact with the lid.

TD SOLUS II: Operating instr ctions
20
Last
revised
0
5
/200
9
Fi ally fit the black cover:
NOTE:
On the SOLUS II 2200, the ins lating lid consists of two
flexible ins lating plates.
Insert the ins lating plate with the smaller diameter:
Tighten the hook strip.
Insert the ins lating plate with the larger diameter:
Place the flat black disk on top as a cover:
8.8 Connecting the temperature sensors
I sert the temperature se sors through the ope i gs from
outside i to the immersio sleeves:
Push the se sor i stallatio aid through the hole i the
i sulatio o to the immersio sleeve (as far as possible).
I sert the se sor
Hold the se sor i the immersio sleeve by the wire
while pulli g out the se sor i stallatio aid.
IMPORTANT
The sensors m st be p shed in as far as possible
Seal the holes care-
fully with the foam
p ugs for sensors ∅
35.
Screw the sensor cover over the ope i gs.
Co ect the temperature se sors to the co troller i ac-
corda ce with the operati g i structio s of the corre-
spo di g co troller.
Route the se sor cables a d 230 V cables i separate or
partitio ed cable co duits.
Electrical i stallatio work may o ly be performed by
professio als.
9Operating instructions
9.1 Commissioning
Before commissio i g the storage ta k, the followi g pre-
co ditio s must be met:
Hydraulic i stallatio of the storage ta k has bee com-
pleted.
The storage ta k is completely filled a d ve ted.
All co troller i puts a d outputs are co ected.
All co troller outputs have bee checked for fu ctio .
All i puts of the se sors have bee checked a d display
plausible values.