Hyperion 100 L, 300 L, 250 L, 200 L, 150 L Installation, Operation & Maintenance Manual

Indirect solar water heaters

100, 150, 200, 250 & 300 L Models

Installation, operation & maintenance manual

Solar Keymark

Certied

2

SWH/HYPC/ENER

In the present manual you will nd all necessary instructions with regard to the installation, operation and maintenance of the product

GENERAL INFORMATION

Xilinakis & Co. have been manufacturing & supplying homes with quality solar water heating systems since 1975. The company’s
hightech, ultra-modern production facilities produce both their own Nobel brand of reputable turnkey solutions as well as providing
critical OEM components for numerous prominent thermal energy trademarks worldwide.

With many of their original systems still in operation, the advantages of a well maintained Nobel solar water heater has been habitually
validated to thousands of households for over 40 years, this experience & know-how has been diligently incorporated into the technically
pioneering new generation of Nobel Solar water heaters. Nobel combine the internationally renowned Aelios tank with their innovative
Apollon panels to create the “HYPERION” range of solar water heating systems. This combination creates a highly effective &
environmentally friendly energy solution that impeccably combines efciency with aesthetics, whilst achieving household autonomy with
astute monetary benets.

Easy to install & maintain, Nobel solar water heaters are constructed with top class materials under stringent quality controls, earning
Nobel & Xilinakis & Co. international certications in 26 countries on ve different continents. By producing hot water almost all year
round, Nobel solar water heaters can easily achieve between 80% - 100% reduction in conventional energy usage & are conveniently
compatible with either electrical resistance, gas or heat pump technologies for auxiliary power backup, ensuring that you will always

have hot water.

DOMESTIC HOT WATER CONSUMPTION

Maximising the benets of solar water heating is undeniably reliant upon the sizing of the system, this paramount point is in turn reliant
upon the household’s daily demand. The fact of the matter is that consumption levels in different households can easily vary from around
35, to well over 75 plus litres per person per day. It is imperative, therefore, that you choose the appropriate tank volume to suit the
daily requirements your lifestyle demands. Water draw off times & distribution parameters should be taken into account especially when
incorporating a ring main distribution system. To maximize the systems’ efciency; intense hot water draw off should be restricted to
before mid-day to allow the system time to recover enough energy to provide for the next evening/morning consumption. Over - sizing
the boiler slightly will add to the overall residual heat of the system & thus reduce reliance upon any auxiliary power backups. Ideally
one wants to heat up enough volume of water in six (6) hours (From 9 am onwards) to accommodate your consumption over the next
eighteen (18) hours & repeat, ad innitum.

General information ..................................................................2

Domestic hot water consumption .............................................2

Solar water heater operation ....................................................3

Packaging .................................................................................3

Labelling ...................................................................................4

Water storage tank specications .............................................4

Collector specications .............................................................5

Hyperion 100lt/1.5m

2

layout ......................................................6

Hyperion 150lt/2m

2

layout .........................................................6

Hyperion 200lt/2.6m

2

layout ......................................................7

Hyperion 250lt/4m

2

layout .........................................................7

Hyperion 300lt/4m

2

layout .........................................................8

General installation rules ..........................................................8

General safety measures .........................................................10

Lightning protection ..................................................................10

Support base parts ...................................................................10

Assembly on a at surface .......................................................13

Assembly on an inclined surface - OPTION A ..........................15

Assembly on an inclined surface - OPTION B ..........................16

Electrical connection .................................................................19

Hydraulic connection ................................................................20

Closed loop lling .....................................................................20

System with water storage tank under the roof

(Natural circulation operation) ..................................................21

System with water storage tank under the roof

(Forced circulation operation) ...................................................21

Post installation instructions .....................................................22

Service - maintenance ..............................................................22

Troubleshooting ........................................................................23

Post installation checklist ..........................................................24

Nobel / Enerjetic certicate of guarantee ..................................25

Installation information & system service record ......................27

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SOLAR WATER HEATERS

SOLAR WATER HEATER OPERATION

The operation of the system requires UV irradiation from the Sun to heat up an aluminum plate inside the solar panel called an absorber.
The absorber, in turn, transfers this heat by contact to a liquid inside copper tubes that are ultrasonically welded to this aluminum
absorber. The tubes in the solar panel are connected via pipes to a steel jacket that completely encompasses the potable water boiler.
The heating of the liquid in the tubes creates expansion that makes the heated liquid lighter thereby causing it to “rise” to the top of
the jacket (this is why the boiler is positioned above the solar panels). This hot liquid will heat the jacket which, being in direct contact
with the boiler, will in turn heat the potable water inside the boiler. Cooler, heavier liquid from the bottom of the jacket that has already
dissipated its energy into the boiler, “sinks” down into the bottom of the panels, replacing the hot expanded liquid leaving the top & is
re-heated by the absorber & thus recycled through the system. This “ow” of liquid is created solely by heat transfer & the action of the
ow itself is called natural thermosyphon. The method of heating described above is what is termed of as an “indirect” solar system.
Instead of heating the potable water directly inside the panels, it employs a liquid anti-freeze solution in the panel tubing & jacket/heat
exchanger to transfer energy. This protects the system from freezing in frost prone areas. Importantly, the anti-freeze also has chemical
anti-corrosive properties protecting the copper tubing against calcite build-ups that would normally be left by potable water in extreme
operating temperatures. This design along with its robust construction make the Nobel solar systems extremely versatile & durable in
being suitable for practically any environmental conditions with adequate solar irradiation. To manage a solar water heater effectively,
one has to be cognizant of seasonal variations of directional solar irradiation & ambient temperatures; a typical solar system heating
water from an ambient 20 degrees to 55/60 degrees in three (3) hours at the height of summer, would take around six (6) hours to reach
similar temperatures in the mid-winter months with considerably lower solar irradiation & much colder ambient water temperatures to
deal with. It’s best to refrain from hot water consumption during peak heating times throughout the winter months. This allows the system
to store the maximum sum of energy out of the limited daily amount available.

PACKAGING

The water storage tank is placed between two round styrofoam covers, secured onto the storage tank
with stretch lm. The collector is packed in a carton box. All the parts of the support base system,
with the connection ttings, the antifreeze liquid and the other accessories are packed in a carton box.
The ttings and the accessories of each appliance appear in the following table:

MODEL

HYPERION 100/1.5
HYPERION 150/2
HYPERION 200/2.6
HYPERION 250/4
HYPERION 300/4

DESCRIPTION

100lt tank, 1.5m

2

collector

150lt tank, 2.0m

2

collector

200lt tank, 2.6m

2

collector

250lt tank, 2 x 2.0m

2

collectors

300lt tank, 2 x 2.0m

2

collectors

1. Boiler

2. Collector(s)

3. Support base, ttings

& Accessories

4. Palette

1

3

4

2

SOLAR WATER HEATERS FITTINGS & ACCESSORIES

1 COLLECTOR 2 COLLECTORS

Quantity Description Quantity Description

1 PC T-PIECE WITH THE FILLING VALVE 1 PC T-PIECE WITH THE FILLING VALVE

1 PC ELBOW ¾’’ FEMALE DN16 INOX 1 PC ELBOW ¾’’ FEMALE DN16 INOX

2 PCS ELBOW Ø22 COPPER X DN16 INOX 2 PCS CONNECTOR Ø22 COPPER X Ø22 COPPER

2 PCS END CAP Ø22 COPPER 2 PCS ELBOW Ø22 COPPER X DN16 INOX

1 PC ONE WAY SAFETY VALVE 10 bar 2 PCS END CAP Ø22 COPPER

1 PC SAFETY VALVE 3.5 bar 1 PC ONE WAY SAFETY VALVE 10 bar

2 PCS INOX TUBE DN16 1 PC SAFETY VALVE 3.5 bar

1 PC INSULATION Ø22 X 9 2 PCS INOX TUBE DN16

* ANTI-FREEZE LIQUID 1lt 1 PC INSULATION Ø22 X 9

* ANTI-FREEZE LIQUID 1lt

* The volume of liquid depends on the conguration boiler / collector

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LABELING

HYPERION solar water heaters are clearly identied by two labels, one on the tank
and the other on the collector/s. These labels display all pertinent details relating to
the size, conguration & pressure ratings of the system. The information provided on
the stickers are also important for the future identication of the system.

*Systems distributed in South Africa include the following SA manufactured, SABS certied, Statutory SANS components:

1. Temperature / Pressure safety valve (Apex)

2. Vacuum breakers (Apex)

3. Drain cock (Cobra)

4. Electrical element (Satchwell)

5. Thermostat (Satchwell)

6. Thermostatic tempering valve (available from supplier on request only)

NOBEL INTERNATIONAL EAD

SOLAR WATER HE ATING SYSTEMS INDUST RY

48 Vitosha B lvd., 2100 Elin Pelin 2100, Bul garia

Tel.: [phone] email: i [e-mail]

Working Pressure: XXX KpA

Model Number: Apollon AL XXXX

Aperture Area: XXX m

2

Hail Cover: No
Hail Resistant: Yes
Freezing Test: Yes

Rated Capacity: XXX lt
Collector Type: Tempered low iron glass
Material of fluid
channel: Copper
Transfer fluid: 1 part Glycol

to 5 parts Water

(Consult the manual for exact mixtures)

Energy rating: XXX kWh

Date: ??????
S/N: ????????

MADE IN EU

Distribuited by Enerjetic Distributors

718 James Crescent Halfway House Midrand

Tel.: [phone] - Fax: [phone]

email: [e-mail]

ISO 9001:2008

NOBEL INTERNATIONAL EAD

SOLAR WATER HE ATING SYSTEMS INDUST RY

48 Vitosha B lvd., 2100 Elin Pelin, Bulg aria

Tel.: [phone] email: i [e-mail]

Working Pressure: XXX KpA

Manufacturer: Nobel
Model Number: Aelios XXXlt Indirect

Aperture Area: XXX m

2

Hail Cover: No
Hail Resistant: Yes
Freezing Test: Yes

Rated Capacity: XXX lt

Type: Closed
Design: Solar
Installation type: Roof/Floor - Horizontal mounting

Standing loss: XXX kWh

Power rating: XXX kW
Volts 230~50 Hz IPX4

Transfer fluid: Polypropylene Glycol / Water Mixture

Date: ??????
S/N: ????????

MADE IN EU

Distribuited by Enerjetic Distributors

718 James Crescent Halfway House Midrand

Tel.: [phone] - Fax: [phone]

email: [e-mail]

ISO 9001:2008

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SOLAR WATER HEATERS

WATER STORAGE TANK SPECIFICATIONS

COLLECTOR SPECIFICATIONS

1. Cylinder: 2.5mm thick cold rolled steel with a double

internal layer of enamel, baked at 860°C according to DIN

4753. The enamelling is done in our own high tech industrial
facilities. Individually pressure tested at 15 bar. Nominal
working pressure: 10 bar

2. Surrounding heat exchanger (Jacket): for the operation

of the closed loop. Cold rolled steel, 1.5mm thickness
(compulsory for low temperature and water with high mineral
content). Pressure tested to 10 bar

3. Thermal insulation: ecological, high-density, expanded

polyurethane ensures minimum heat loss, maintaining the

hot water temperature

4. External housing: pre-painted galvanized steel with UV

protected, weatherproof end-caps

5. Cathode protection by magnesium anodes for effective

protection against corrosion and mineral deposits caused
by electrolytic reactions

6. Large round steel ange, rubber protected: innovative,

smart design for the quick cleaning of minerals and
immediate access to the electrical components. Universal
three pronged “pin” type element & thermostat seating

7. Complete sealing of non-toxic, EPDM material preventing

water coming into contact with the ange & thus protecting.
against electrolysis and corrosion

8. Heating element rated according to the country of

destination with respect to local regulations (for the use of
electricity as an auxiliary power source)

9. Automatically regulated thermostat with bipolar protection

and auxiliary fuse. All electrical components must comply
with local standards & markings

10. Protective cover: designed to ensure the proper ventilation

of the electrical section & protection from weather

11. Cold water inlet: INOX 3/4” BSPT male threaded pipe end

for water stratication and 10 bar safety valve for releasing

pressure

12. Hot water outlet: INOX 3/4” BSPT female threaded pipe end

13. Jacket inlet: 3/4” BSPT male threaded pipe end

14. Jacket outlet: Closed loop circuit lling point: 3/4” BSPT

male threaded pipe end

15. 3.5 bar safety valve connection location: 1/2” BSPT male

threaded pipe end

1012 15

176 2 3 4

11

14

8 59

1. External one piece aluminum trough of high aesthetics, shaped by deep drawing

method in a 400 ton press, made of naval aluminum alloy, rich in magnesium &
robust in construction for perfect tightness

2. High density, eco-friendly thermal insulation: 60mm thick layer of prepressed

rockwool with a covering of black glass fabric blanket for the minimization of

thermal losses

3. Water frame of copper pipes (headers: Ø22, manifolds: Ø8): Headers are

punched with upper expansion, for perfect manifold tting & thus avoiding
pressure drops in the collectors

4. Selective complete area absorber made of selective aluminum sheet with a

special titan coating, high absorbency and low irradiation. Laser welded to the
water frame

5. Special parts for supporting and sealing the water frame to the trough are specically designed for the collector’s ventilation

& has a sensor supporting option. Flexible silicone rubber seals allow for the uctuation of the absorber’s length (contraction ­expansion) from a -40°C to +200°C temperature range

6. Tempered solar glass low iron, with UV proofed rubber seal. Very stable coefcient of expansion, low reective, high light

transmittance & withstands most adverse weather conditions (e.g. hail storm, extreme temperature changes, etc.) trimmed with an
aluminium prole for solar glass seating, sealing and supporting

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HYPERION 100lt/1.5m2 LAYOUΤ

Note: All dimensions measured in mm

COLLECTOR APOLLON AL 1500

TOTAL AREA (m²) 1.53

NUMBER OF MANIFOLDS 10

HEAT TRANSFER MEDIUM PROPYLENE GLYCOL SOLUTION

CAPACITY (lt) 1.45

ABSORBER SURFACE (m

2

) 1.34

TOTAL DIMENSIONS (mm)

1510x1010x110

COLLECTOR TOTAL WEIGHT (without liquid) (kg)

24.6

ABSORBER SELECTIVE ALUMINIUM

ABSORBENCY / RADIATION COEFFICIENT 95% ±2% / 5% ±2%

TOTAL SYSTEM HYPERION 100lt/1.5m

2

NUMBER OF COLLECTORS 1

SYSTEM WEIGHT EMPTY (packed) / FULL (kg) 98/214

MAX. WATER TANK OPERATING PRESSURE (bar) 10

CLOSED CIRCUIT MAX. OPERATING PRESSURE (bar) 3.5

MAX OPERATING TEMPERATURE 95°C

WATER STORAGE TANK 100lt

DIMENSIONS (mm) 580X906

WEIGHT EMPTY (kg) (without packaging) 52.2

JACKET CAPACITY (lt) 8.6

JACKET SURFACE (m

2

) 0.62

MAX TEST PRESSURE (bar) 15

MAX OPERATING PRESSURE (bar) 10

HYPERION 100/1.5m2 - JACKET AND COLLECTOR CAPACITY: 10lt

ANTIFREEZE LIQUID (lt) 1 2 3 4 5 6 7

MIN. TEMPERATURE (

°

C) -3 -5 -8 -11 -15 -20 -28

FLAT SURFACE INCLINED SURFACE

Note: All dimensions measured in mm

COLLECTOR APOLLON AL 2000

TOTAL AREA (m²) 2.03

NUMBER OF MANIFOLDS 10

HEAT TRANSFER MEDIUM PROPYLENE GLYCOL SOLUTION

CAPACITY (lt) 1.75

ABSORBER SURFACE (m

2

) 1.81

TOTAL DIMENSIONS (mm) 2010x1010x110

COLLECTOR TOTAL WEIGHT (without liquid) (kg) 38

ABSORBER SELECTIVE ALUMINIUM

ABSORBENCY / RADIATION COEFFICIENT 95% ±2% / 5% ±2%

TOTAL SYSTEM HYPERION 150lt/2m

2

NUMBER OF COLLECTORS 1

SYSTEM WEIGHT EMPTY (packed) / FULL (kg) 131.5/287.5

MAX. WATER TANK OPERATING PRESSURE (bar) 10

CLOSED CIRCUIT MAX. OPERATING PRESSURE (bar) 3.5

MAX OPERATING TEMPERATURE 95°C

HYPERION 150lt/2.0m2 LAYOUΤ

WATER STORAGE TANK 150lt

DIMENSIONS (mm) 580x1125

WEIGHT EMPTY (kg) (without packaging) 67.6

JACKET CAPACITY (lt) 14

JACKET SURFACE (m

2

) 0.98

MAX TEST PRESSURE (bar) 15

MAX OPERATING PRESSURE (bar) 10

HYPERION 150lt/2m2 - JACKET AND COLLECTOR CAPACITY: 15lt

ANTIFREEZE LIQUID (lt) 1 2 3 4 5 6 7

MIN. TEMPERATURE (

°

C) -3 -5 -8 -11 -15 -20 -28

2126

2551

FLAT SURFACE INCLINED SURFACE

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SOLAR WATER HEATERS

HYPERION 200lt/2.6m2 LAYOUΤ

Note: All dimensions measured in mm

COLLECTOR APOLLON AL 2600

TOTAL AREA (m²) 2.53

NUMBER OF MANIFOLDS 13

HEAT TRANSFER MEDIUM PROPYLENE GLYCOL SOLUTION

CAPACITY (lt) 2.12

ABSORBER SURFACE (m

2

) 2.30

TOTAL DIMENSIONS (mm) 2010x1260x110

COLLECTOR TOTAL WEIGHT (without liquid) (kg) 45.4

ABSORBER SELECTIVE ALUMINIUM

ABSORBENCY / RADIATION COEFFICIENT 95% ±2% / 5% ±2%

TOTAL SYSTEM HYPERION 200lt/2.6m

2

NUMBER OF COLLECTORS 1

SYSTEM WEIGHT EMPTY (packed) / FULL (kg) 158/363

MAX. WATER TANK OPERATING PRESSURE (bar) 10

CLOSED CIRCUIT MAX. OPERATING PRESSURE (bar) 3.5

MAX OPERATING TEMPERATURE 95°C

WATER STORAGE TANK 200lt

DIMENSIONS (mm) 580x1456

WEIGHT EMPTY (kg) (without packaging) 86.5

JACKET CAPACITY (lt) 20.4

JACKET SURFACE (m

2

) 1.42

MAX TEST PRESSURE (bar) 15

MAX OPERATING PRESSURE (bar) 10

HYPERION 200/2.6m2 - JACKET AND COLLECTOR CAPACITY: 21lt

ANTIFREEZE LIQUID (lt) 1 2 3 4 5 6 7 8 9 10

MIN. TEMPERATURE (

°

C) -2 -3 -5 -8 -10 -12 -15 -19 -23 -28

Note: All dimensions measured in mm

COLLECTOR APOLLON AL 2000

TOTAL AREA (m²) 2.03

NUMBER OF MANIFOLDS 10

HEAT TRANSFER MEDIUM PROPYLENE GLYCOL SOLUTION

CAPACITY (lt) 1.75

ABSORBER SURFACE (m

2

) 1.81

TOTAL DIMENSIONS (mm) 2010x1010x110

COLLECTOR TOTAL WEIGHT (without liquid) (kg) 38

ABSORBER SELECTIVE ALUMINIUM

ABSORBENCY / RADIATION COEFFICIENT 95% ±2% / 5% ±2%

TOTAL SYSTEM HYPERION 250lt/4m

2

NUMBER OF COLLECTORS 2

SYSTEM WEIGHT EMPTY (packed) / FULL (kg) 212.5/471.5

MAX. WATER TANK OPERATING PRESSURE (bar) 10

CLOSED CIRCUIT MAX. OPERATING PRESSURE (bar) 3.5

MAX OPERATING TEMPERATURE 95°C

HYPERION 250lt/4.0m2 LAYOUΤ

WATER STORAGE TANK 250lt

DIMENSIONS (mm) 580x1786

WEIGHT EMPTY (kg) (without packaging) 107.2

JACKET CAPACITY (lt) 27.5

JACKET SURFACE (m

2

) 1.9

MAX TEST PRESSURE (bar) 15

MAX OPERATING PRESSURE (bar) 10

HYPERION 250lt/4m2 - JACKET AND COLLECTOR CAPACITY: 28lt

ANTIFREEZE LIQUID (lt) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

MIN. TEMPERATURE (

°

C) -1 -3 -4 -5 -6 -8 -9 - 11 -13 -15 -17 -20 -23 -26 -32

2126

FLAT SURFACE INCLINED SURFACE

2034

2125

2161

2553

632

FLAT SURFACE INCLINED SURFACE

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2034

FLAT SURFACE INCLINED SURFACE

Note: All dimensions measured in mm

COLLECTOR APOLLON AL 2000

TOTAL AREA (m²) 2.03

NUMBER OF MANIFOLDS 10

HEAT TRANSFER MEDIUM PROPYLENE GLYCOL SOLUTION

CAPACITY (lt) 1.75

ABSORBER SURFACE (m

2

) 1.81

TOTAL DIMENSIONS (mm) 2010x1010x110

COLLECTOR TOTAL WEIGHT (without liquid) (kg) 38

ABSORBER SELECTIVE ALUMINIUM

ABSORBENCY / RADIATION COEFFICIENT 95% ±2% / 5% ±2%

TOTAL SYSTEM HYPERION 300lt/4m

2

NUMBER OF COLLECTORS 2

SYSTEM WEIGHT EMPTY (packed) / FULL (kg) 221/532

MAX. WATER TANK OPERATING PRESSURE (bar) 10

CLOSED CIRCUIT MAX. OPERATING PRESSURE (bar) 3.5

MAX OPERATING TEMPERATURE 95°C

HYPERION 300lt/4.0m2 LAYOUΤ

WATER STORAGE TANK 300lt

DIMENSIONS (mm) 580x2076

WEIGHT EMPTY (kg) (without packaging) 119.7

JACKET CAPACITY (lt) 25.8

JACKET SURFACE (m

2

) 1.79

MAX TEST PRESSURE (bar) 15

MAX OPERATING PRESSURE (bar) 10

HYPERION 300lt/4m2 - JACKET AND COLLECTOR CAPACITY: 30lt

ANTIFREEZE LIQUID (lt) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

MIN. TEMPERATURE (

°

C) -1 -3 -4 -5 -6 -8 -9 - 11 -13 -15 -17 -20 -23 -26 -32

GENERAL INSTALLATION RULES

WARNING! The installation of the system must be in strict compliance with all local statutory regulations (I.E. building, plumbing,

electrical, urban, health & safety legislation etc.) & by authorized solar specialist installers only. Standards may vary from region to
region. Please be aware that compliance is the sole responsibility of the installer/s in contract & agreement with the owner/s of the solar
water heating system. Any non-compliance with the aforementioned or deviation from the recommended installation parameters set out
below, with or without due consideration to the above, may annul the warranty & no claim could be made against the companies for any
consequences caused by any event or circumstance whatsoever.

INSTALLATION LOCATION: Before an installation, the selection of a suitable location must be agreed upon by the installer in

consultation with the owner for the safe & effective operation of the system. The routing of the piping, the consequences thereof & future
ease of access for routine cleaning & maintenance should also be thoroughly considered.

SUPPORT STRUCTURE: It is imperative that the surface

of the systems’ intended position & its support structure
are assessed by a competent person by taking the static
resistance capacities & variant load bearing capabilities
into consideration. In particular the effects of extra added,
permanent deadweight & maximum wind/snow loads at the
point of installation need to be regarded. Where inadequate
bearing capacity is apparent, a correct installation would
require the competent bracing & strengthening of such a
structure compliant with local building regulations to ensure
the safety of the building, its occupants & their belongings. Although functional on most surfaces, in the event that there is no compatibility
between the equipment provided & the structure where the solar water heater is to be installed (inclined or at), then a custom kind of
equipment or structure would naturally be required. The sole responsibility for the materials, equipment chosen & the installation thereof
lies on the installer, proposed to & agreed upon with the owner prior to installation of the system.

APOLLON AL COLLECTOR

INSTALLATION MODE

WIND LOAD

[km/h] / [kΝ/m

2

]

SNOW LOAD

[kΝ/m2]

Inclined surface

(Inclination angle: 15° – 75°)

151 / 1.1 1.25

Flat surface

(Inclination angle: 35°)

151 / 1.1 1.25

Τhe system may only be installed in locations with lower wind and snow load values
than the ones mentioned above.

9

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SOLAR WATER HEATERS

SHADING: The system should not be shaded by any obstacles for at least 6 (six) hours during midday hours to ensure that uninhibited

& direct exposure of the collectors to the sun is achieved over this daily timeframe. This is when solar irradiation & the systems’ energy
capture capability is at its peak (typically between 09.00 & 15.00 hours). Heavy dust & other deposits can effectively “shade” your panels
& thus should always be kept clear of any foreign materials.

OPTIMUM ORIENTATION TO THE SUN: A basic factor for the system’s

optimum performance is the selection of its collector angle and orientation for
its particular location (latitude), to ensure that the maximum daily energy gain is
acquired. The system should be positioned so that the collector’s surface faces
geographical south if the installation takes place in the Northern Hemisphere
(and geographical north for the Southern Hemisphere), i.e. for best results the
system should always face directly towards the Equator.

Any deviation in direction would mean a reduction in the system’s performance proportionate to the extent of the deviation. If a signicant
change from the proper orientation cannot be avoided then, following an evaluation of the specic conditions that apply, the system’s
performance may be increased & thus made viable by enlarging the area of the collector surface accordingly. Due to the attack or angle
of the sun’s rays varying from one season to the next, the collectors should be angled at a value approximately equal to the location’s
latitude +10 degrees. As the angle of attack on the system is xed, this orientation rule of thumb maximizes the energy gain on an overall
annual basis. Typically, areas of high irradiation have less need for absolute accuracy in this regard.

ANTI-FREEZE LIQUID: The heat transfer medium used in the closed circuit protects the system from freezing and from the

accumulation of salts inside the collector tubes & jacket. The thermal uid must be well mixed with water in a percentage that is
necessary to protect the system against expected local weather & environmental extremes. The responsibility for the appropriate mix
of glycol to quantity of water for the anticipated conditions as well as for the quality of liquid used other than the one supplied with the
solar water heater lies solely on the installer and/or the owner of the system. The liquid provided is an advanced, food grade propylene
glycol based product that is formulated to ensure effective heat transfer properties at both high & low temperatures. It is non-toxic and
provides protection up to -37°C (solution 55% v/v with water). It is especially designed to provide excellent anticorrosion properties. The
glycol offers freeze protection according to dilution as per the table below:

EXTREME WEATHER & ENVIRONMENTAL CONDITIONS: It is highly recommended that you insure your solar water heater

against the same possible extreme or freak weather events as you would do for your home before installing the system. Regions with
heavy storms, high wind velocity, cyclones, tornadoes, hail of more than 20mm in diameter or dry areas prone to bush/forest res
might require special insurance to assure you of your asset. Heavy snow precipitation should be removed without delay. It is also
recommended that an effective water ltration system be installed in hard water regions to alleviate an intensive maintenance regime.

SYSTEM HANDLING: To safeguard the device from damage, the solar system’s protective packaging should only

be removed once on site & just prior to the installation. Due care & consideration needs to be exercised when storing,
transporting & unpacking the product. Ensure the product is free of all polystyrene packaging before removing the
plastic protective caps from the water storage tank and the collector pipe ends. The collectors & water tank are never
to be lifted by or supported on their pipes. To prevent the risk of thermal shock to the water frame, pre-mature boiling
of the heat transfer liquid or any incidental breakages - the collector’s glass must remain covered with a suitable material until the
installation is completed in its entirety. Due to its bulk, weight & fragile nature of the enamelling, the safe lifting & mounting of the water
tank will require either the use of a mechanised or manually operated geared lifting device appropriate for the weight being manipulated
or alternatively, manual handling is only possible with industrial grade ladders, stable scaffolding & adequate numbers of personnel.
Safety ropes, pulleys & harnesses for both the boiler & the workforce would need to be employed. Careful pre-planning & people
management is imperative for the safe positioning of the water tank.

L

H

LATITUDE

DISTANCE BETWEEN THE OBSTACLE

AND THE COLLECTOR (L)

0°

- 25° 1.0 x H

26°

- 35° 1.5 x H

36°

- 45° 2.0 x H

46°

- 50° 2.5 x H

> 50

o

3.0 x H

N

S

N

S

Northern Hemisphere Southern Hemisphere

PERCENTAGE (%) 5 10 15 20 25 30 35 40 45 50

TEMPERATURE (°C) -2 -4 -6 -8 -11 -15 -19 -24 -30 -37