Wagner & Co SECUSOL Manual
Solar thermal / Collectors EN-USA_SECUSOL_TI-MA-111013-1121R800 1
TECHNICAL INFORMATION / INSTALLATION INSTRUCTIONS
Compact Solar Drainback System SECUSOL
Figure 1 SECUSOL-System
Operational Safety and Low Maintenance
When the pump is not operating, there is no solar fluid
present in the collectors. Therefore the solar fluid and any
downstream system components are protected against
detrimental effects from overheat. Unwanted gravitational
forces as well as operational faults due to air pockets are
eliminated. A service intensive membrane expansion ves-
sel, air bleeds and check valves are not required. Operati-
on with common anti-freeze solar fluid prevents potential
frost damage.
High Yield Thanks To:
●High transparency anti reflection glass
●Single surface absorber with selective vacuum coating
●Solid insulation of individual components
Simplified Installation and Start-Up
●Pre-assembled unit of storage tank, solar controller and
solar circulator, including all safety components.
●Flexible copper double-pipe with only 12mm cross
section, for simple and time saving piping (supplied by
Wagner & Co).
●No expansion vessel and hence no setting of pre-pres-
sure required.
●Very simple flushing and filling
●No venting of solar circuit required
Installation, startup and maintenance of the SECUSOL
solar thermal installation are intended to be carried out
by trained professionals only, e.g. in line with SRCC Stan-
dard OG-300 installation guidelines or NABCEP certifica-
tion. They have to be licensed, must be familiar with the
IAPMO Uniform Solar Energy Code and must conform
to applicable federal, state and local regulations, codes,
standards and meet all legal requirements related to the
installation of solar hot water systems as well as plumbing,
electrical wiring and roof works.
Content
1 Technical Information 2
1.1 Technical Data 2
1.2 Scope of Supply 8
1.3 Accessories 14
2 General Safety Notes 16
2.1 Symbols 16
2.2 Standards and Codes 16
2.3 Qualification of the Installer 17
2.4 Intended Use and Application 17
2.5 Pre Installation Notes 18
2.6 Function of the SECUSOL system 18
3 Installation 19
3.1 Preparation 19
3.2 On-Roof Installation 20
3.3 Free Standing Installation 24
3.4 General Notes about Storage Installation 29
3.5 Setting up the Storage Tank 29
3.6 Connection to Domestic Water Supply 29
3.7 Laying the Solar Circuit 31
3.8 Installing the Controller 35
4 Startup 36
4.1 DHW System 36
4.2 Backup Heating Circuit 36
4.3 Solar Circuit 36
5 Connecting the storage Insulation 38
6 Advice for the User 38
7 Maintenance and Care 39
8 Troubleshooting 40
2 EN-USA_SECUSOL_TI-MA-111013-1121R800
1 Technical Information
1.1 Technical Data
Table 1 Technical Data
Features SECUSOL
250-1
SECUSOL
250-2
SECUSOL
350-2
Solar collectors
Type EURO C20 AR-M EURO L42 or EURO C20 AR-M
Gross area / aperture area sq ft (m²)
EURO C20 AR-M
28.1 sq ft (2.61 m²) /
25.7 sq ft (2.39 m²)
EURO L42
24.2 sq ft (2.25 m²) /
21.6 sq ft (2.01 m²
Collector racking On roof or free standing
Orientation of collector Horizontal installation only (pitch of 10° – 85°),
max. permitted diversion from horizontal orientation: 2°
No. of collectors 1 2 (cannot be extended)
Solar circuit
Collector circuit material (on site) Cu 12mm, order as needed from Wagner Solar, see material requirements in table8
Insulation material (accessory) see material requirements in table8
Length of solar circuit
(sum of flow and return legs)1Minimum 16.4 ft (5 m) / maximum 98.4 ft (30 m)
Maximum operating pressure 87 psi (6bar)
Installation height 2) Minimum 3.3 ft (1 m), from the bottom of the tank to the bottom of the collector
Maximum 28 ft (approx. 8.5 m), from the bottom of the tank to the top of the collector
Minimum temperature Frost resistant up to 1.4 °F (-17°C), if correctly filled 2)
Heat transfer fluid in
collector loop
Water/propylene glycol mix only with 33 % glycol 1) ,
filling capacity: 1.9 to 1.95 Gal (7.2-7.4 liters)
Solar controller
Name SUNGO US plus
Pump control Speed controlled
Overheat protection 180 °F temperature limitation for the tank
Storage
Nominal content 66 Gal (250 l) 92.2 Gal (350 l)
Stand by heating volume approx. 32 Gal (120 l) approx. 42 Gal (160 l)
Total height (including insulation) 62.83 in (1596 mm) 72.64 in (1845 mm)
Diameter (including insulation) 29.53 in (750 mm)
Permissible operation pressure /
Permissible operating temperature 145 psi / 203 °F (10 bar / 95 °C)
Corrosion protection
of the storage cylinder Enamel coating according to DIN4753T3
Cathodic corrosion protection Mg sacrificial anode acc. to DIN4753T6
Cold/hot water connections 1" NPT (M)
Sensor connection Clip in lower tank area
Solar heat exchanger approx. 12.39 sq ft (1.15 m²)
Backup heating coil none / approx. 6.0 sq ft (0.65 m²), depending on type approx. 8.61 sq ft (0.8) m²
Socket for electrical immersion heater,
Position: 1" NPSM (F)
Heat insulation
(PU foam, polystyrene jacket)
Cylinder and lid approx. 2.25 in (75 mm)
Base 1.57 in (40 mm)
Weight 285.5 lb (129.5 kg) 307.5 lb (139.5 kg)
1) See Figure 28 page31.
2) Lower edge of storage cylinder to lower edge of collector (Figure 28 page31).
3) In order to achieve higher frost protection, the glycol content needs to be increased to over 33 %. However, this results in increased
pressure drop and hence a reduced maximum installation height and length of solar circuit. Please also observe the technical
information of the solar liquid. If required feel free to contact our technical support.
EN-USA_SECUSOL_TI-MA-111013-1121R800 3
Figure 2 Dimensions of solar collectors EURO L42 (upper image) and EURO C20 AR-M (lower image).
40.78 in/1035 mm
76.10 in/1933 mm
45.79 in/1163 mm
EURO L42 HTF
3.15 in
80 mm
84.69 in/2151 mm
47.83 in/1215 mm
EURO C20 AR M
42.79 in/1087 mm 4.33 in
110 mm
Throughout this document and all other Wagner & Co do-
cumentation the term „flow“ refers to the hot, outgoing
pipe leg, while the term „return“ refers to the the colder,
incoming leg of the heating or solar circuit (the one retur-
ning to the heat generating device).
4 EN-USA_SECUSOL_TI-MA-111013-1121R800
Table 2 Storage dimensions in inch (mm)
Pos.1Dimension SECUSOL 250 SECUSOL 350
Total height (without insulation) 55.91 in (1420 mm) 70.75 in (1797 mm)
4
Socket (1"NPSM(F)), height above ground 34.13 in (867 mm) 44.72 in (1136 mm)
7
Hot water connection
(stainless steel and brass, 1NPT(M)) 2), height
above groand
51.3 in (1303 mm) 66.26 in (1683 mm)
2
Cold water connection
(stainless steel and brass, 1NPT(M))
2), height
above ground
18.78 in (477 mm)
3
Solar flow / hot side (G ¾) 2), height 32.17in (817 mm)
5
Backup heating flow / hot side2) (¾ NPTM(M)) 2),
height If present: 36.10 in (917 mm) 46.69 in (1186 mm)
6
Backup heating return (¾ NPTM(M)) 2) /colder
side, height If present: 44.37 in (1127 mm) 57.01 in (1448 mm)
Diameter (without insulation) 23.62 in (600 mm)
Base ring openings Ø 11.81 in (300 mm)
1
Solar return / colder side, pump flange height
above ground 13.8 in (350) mm
Legend:
1) Dimension position numbers from figures 3 and 4
2) Pipe thread DIN ISO 228-1 (cyl.), flat sealing
Figure 3 Dimensions SECUSOL 250 solar storage tank; (1) Flange with sacrificial anode; Dimensions of cylinders are without insulation.
SECUSOL 250 is available with and without backup heat exchanger (upper coil). The image shows the version with upper coil. The version
without upper coil does not feature the connections 5 and 6.
SECUSOL 250
1
1
2
3
5
6
7
1" NPT(M)
1" NPT(M)
3/4" G
1" NPSM (F)
3/4" NPT(M)
3/4" NPT(M)
3/4" NPT(F)
4
11.81 in
300 mm
18.78 in (477 mm)
32.17in (817 mm)
36.10 in (917 mm)
44.37 in (1127 mm)
51.3 in (1303 mm)
55.91 in (1420 mm)
23.62 in (600 mm)
EN-USA_SECUSOL_TI-MA-111013-1121R800 5
Figure 4 Dimensions of SECUSOL 350 solar cylinder (without insulation).
(1) Flange with sacrificial anode
1
SECUSOL 350
1
2
3
4
5
6
7
3/4" G
1" NPT(M)
1" NPT(M)
1" NPSM (F)
3/4" NPT(M)
3/4" NPT(M)
3/4" NPT(F)
11.81 in
300 mm
18.78 in (477 mm)
32.17in (817 mm)
46.69 in (1186)
43.54 in / 1106 mm
57.01 in (1448 mm)
66.26 in (1683 mm)
70.75 in (1797 mm)
23.62 in (600 mm)
6 EN-USA_SECUSOL_TI-MA-111013-1121R800
Figure 5 Connection options for the EURO L42 for on-roof and free-standing installation, with sensor positions, dimensions of the collector
field and racking system. The absorber connections can point to the left or to the right. (1) Solar sensor; (2) Rail; (3) Rafter bracket or roof
anchor; (4) Racking triangle.
On roof
Free standing setup
EURO L42
1
2
3
4EURO L42
76.1 in / 1933 mm
76.1 in / 1933 mm
>160 in / 4060 mm
91.57 in
2326 mm
45.79 in
1163mm
45.79 in
1163mm
45.79 in
1163mm
45.79 in
1163mm
>160 in / 4060 mm
EN-USA_SECUSOL_TI-MA-111013-1121R800 7
On roof
Free standing setup
EURO C20 AR-M
1
2
3
4EURO C20 AR-M
84.69 in / 2151 mm
84.69 in / 2151 mm
>177.17 in / 4500 mm
95.79 in
2433 mm
47.83 in
1215mm
47.83 in
1215mm
47.83 in
1215mm
47.83 in
1215mm
>177.17 in / 4500 mm
Figure 6 Connection options for the EURO C20 AR-M for on-roof and free-standing installation, with sensor positions, dimensions of the
collector field and racking system. The absorber connections can point to the left or to the right. (1) Solar sensor; (2) Rail; (3) Rafter bracket or
roof anchor; (4) Racking triangle
Figure 7 Design principle of the SECUSOL system. Left hand side: When in idle state, the collector loop and the collctor are filled with air
(light-coloured lines). The solar fluid (darker lines) is located in the heat exchanger. Right hand side: When the system is in operation the air is
pushed into the upper loops of the heat exchanger by the rising solar fluid.
System air
System air
Collector
Solar liquid
Solar liquid
System idle System in operation
Storage Storage
Heat exchanger
Pump
8 EN-USA_SECUSOL_TI-MA-111013-1121R800
1.2 Scope of Supply
The complete system is delivered with the following com-
ponents:
Table 3 Components Qty.
Collector EURO L42 1 or 2
Collector EURO C20 AR-M 1 or 2
Solar storage, nominal content 250 l or 350 l,
respectively (screwed onto pallet), incl. solar flow
and return group with circulator and solar
controller SUNGO US plus 1)
1
1 plug 1" NPSM (fixed to pallet), for closing the
storage socket 1
1) For details see Table 5 and Figure 8
Table 4 Scope of Supply System with
Boxed components 1 coll.
2 coll.
side
by
side
2 coll.
one
above
the
other
Customer information folder with
instructions and system
documentation
1
Solar liquid DC20 F 2.5 l in 5 l
canisters 1
Collector adapter set 1
US Secusol serial connection set 1
US Secusol parallel connection set 1
Roof anchor / rafter bracket (only for
on-roof installation)1) 4 8 8
1) Minimum no., actual no. depends on structural and geographical
situation.
Table 5 Scope of supply, storage SECUSOL 250 / SECUSOL 350
Position 1) Components Quantity
1 Jacket insulation 1
2 Cover insulation 1
3 Ground insulation 1
4 Storage cylinder lid 1
5 Solar controller 1
6 Container 1
7 Socket cover with integrated protective anode 1
8 Solar return subassembly 1
9 Ventilation opening 1
10 Plug 1" NPSM 1
Compression olive fitting 12mm 2
13 Storage cylinder connection nozzle 5
f Collector sensor 1
k Collector sensor cable 1
n Mains cable 1
p Pump cable 1
s Storage cylinder temperature sensor 1
1) Position numbers from Figure 8.
EN-USA_SECUSOL_TI-MA-111013-1121R800 9
Figure 8 Scope of supply of the SECUSOL storage cylinder shown for the 250 l- (see table 5 for a position number legend).
s
n
k
7
2
4
5
p
6
8
9
10
3
1
13
f
10 EN-USA_SECUSOL_TI-MA-111013-1121R800
Note
The roof brackets shown throughout
this document are of the type A1 Pro+,
specifically developed for common
North-American asphalt shingle roofs.
For installation details refer to the
separate instructions coming with the
roof brackets. Other roofing types
require different roof anchors.
Set for single collector
Table 6 On roof racking, set for single collector, scope of supply Single collector
Pos. 1) Components Quantity Part no.
1 Rafter bracket or roof anchor (recommended)²)(4)
2 Collector rail 49.5 in / 1257 mm (EURO C20 AR-M) with two collector clamps 2 192 001 00
3 wire strip 1
4 Collector EURO C20 AR-M 1
192 040 625 Compression olive connection ½" - 12 mm 2
6 Gasket ½" 2
1) Position no. from Figure 10
2) Not included in the set, to be ordered separately
Figure 9 Single basic set for on-roof installation with collector
EURO C20 AR-M
3
2
1
4
5
6
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