Baxi STS 150 2.0 LP, Инсталлятор/Пользователь

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34
EN
6. In a potable water installation without hot water circulation, the water should be
able to reach a temperature of at least 55 ° C at any point during normal use. The
hot water systems should allow raising the temperature to 70ºC at any point in
the system to carry out disinfection. The solar-only system should be equipped
with a device that either disinfects the storage tank every week or the outgoing
potable water, or prevents the growth of Legionella in the storage tank or heat
exchanger in any other way.
MAINTENANCE
1. System maintenance must be performed by a specialised technician.
2.
Collectors:
• Check for excessive dust on collectors at least once a year. They can be cleaned
with water, but collectors must be cooled to prevent the glass from breaking.
3.
Reservoir tank:
• Check the magnesium anode once a year and replace it if required.
• Clean the reservoir tank when checking the condition of the anode.
4.
Bracket:
• The bracket must be checked for corrosion and decay every year.
• Nuts must be tightened.
5.
Installation:
•
Check for leaks every year. Refill the system with water and glycol to prevent
freezing.
• Check that safety valves work properly once a year, and, if needed, they should
be changed.
•
Check that the pH of the fluid in the primary circuit is not under 7.
• Check for leaks.
• Perform an annual check to ensure that the water quality meets the requirements
of the Langelier index.
WARNINGS FOR USERS
• Your solar system has two circuits. The primary circuit recirculates from the
collectors to the heat exchanger inside the reservoir tank, thus the solar radiation
heat is transferred to the reservoir tank.
• Hot water temperature depends on the day’s solar radiation, season, ambient
temperature, inlet cold water temperature, time at which the hot water is used
and the amount of water used.
• If you need hot water in the morning, avoid excessive consumption the previous
evening.
• To avoid system freeze issues in very cold nights, it is advisable to leave a faucet
slightly open (dripping).
•
In case of failure or malfunction, please, call the installer or qualified technical
service.
DISASSEMBLY:
1.
Empty solar fluid (water + glycol) in the primary circuit by loosening the nut
connecting the pipe to the bottom part of the collectors.
2. Close the water inlet and proceed to drain the ACS circuit.
3.
Make sure the liquid inside is not hot to prevent burns. The fluid inside is a mixture
of glycol and water; please, recycle or safely dispose of it and do not throw it
down the drain.
4. Disassemble the pipes.
5. Disassemble the reservoir tank.
6.
Disassemble solar collector(s).
7. Disassemble bracket.
RECYCLING:
Most of the thermosiphon system components are recyclable. The equipment can
be disassembled and its components can be sorted to be recycled.
NOTE:
Features and specifications subject to change without notice.
A heating resistance (optional) cannot be incorporated in the reservoir tank.
WARNINGS FOR INSTALLERS
• Equipment must be kept at minimum recommended 0.5 m distance from su-
rrounding walls so that solar collectors are never in the shade and can be easily
maintained.
Drain lines should be led to sinks.
• In the event that steel materials, stainless steel, etc. in addition to copper are
used for the installation avoid contact between them to prevent galvanic couples.
• Particularly, in closed-circuit installations, in which solar liquid is a mixture of water
and glycol, the use of galvanized iron, aluminium and its alloys must be avoided.
• Dielectric sleeves should be placed between the inlet and the outlet of the sanitary
water and the tank connections.
• Pipes must be insulated in compliance with current regulations. Pipes connecting
the thermosyphon equipment come isolated and weather protected.
• Any drain system to be placed in the hydraulic circuit must be isolated.
• Special care must be taken with the pipes passing from the inside to the outside of
the building to prevent dampness.
• Collectors should be protected from sunlight once the packaging is removed until
the installation is filled up.
• In the case of lack of demand, or when long periods without removal of ACS are
expected, protect the system with thermal blankets or drain the system.
• The cold water tap must always remain open.
• Do not start the system in temperatures below zero.
• Use a safety harness when working at height.
• The structure of the roof must be assessed for its suitability prior to commencing work.
• Consult a structural Engineer if you are unsure of the collector’s siting.
• Loading due to snow may exceed the capability of the property’s structure.
• Wind loads may cause excess forces on the structure and cause damage.
• The installer is responsible for the suitability of the site and its sub-structure.
• The collector should be sited to avoid damage from falling debris and vandalism.
• All pipe work within this installation must be earth bonded.
• The tank cover must be connected to the solar collector by means of a minimum
copper conductor cable of 16 mm 2 section.
INSTALLATION AND FILLING UP
• Connect the lightning protection system.
•
A mixing valve must be fit to the hot water outlet to prevent burns, because the
reservoir tank can reach temperatures above 60 °C. The mixing valve must be in
accordance with EN 15092 and EN 1490.
If the inlet pressure exceeds 400 kPa (4 bar), a pressure reducer must be
installed to protect the entire system.
•
The following precautions must be taken when installing the safety valve:
• Connect the secondary circuit to the network through the cold water inlet
(safety valve H6)
•
Do not install any shut-off valve between the safety valve and the reservoir tank.
• Install the valve vertically to prevent dust and impurities from accumulating in
the drain inlet.
• The safety valve must be led to the sink avoiding horizontal sections where wa-
ter can collect, preventing water from freezing. Piping should be installed inside
of the building as far as possible to prevent water from freezing.
• Piping should be installed so that the steam or heat transfer medium coming
out the safety valve does not pose any risk to persons, materials or the envi-
ronment.
•
The safety valve set to 800 kPa (8 bar), supplied with the cold water inlet pipe,
must be installed (secondary circuit). Do not install any shut-off valve between
the safety valve and the reservoir tank.
• Before putting the system into operation, check that all valves are working
correctly and that the system is completely filled with water and antifreeze fluid
according to the manufacturer’s instructions.
CHECKLIST FOR INSTALLERS
Once the equipment is installed, installers should check that:
1. Primary system insulated pipes must always be mounted upstream. Small sections
can be horizontal but never downstream. This allows the air bubbles to rise to the
tank, thus preventing them from obstructing recirculation.
2. Make sure all bolts and nuts in the bracket are securely tightened.
3. Make sure there are no water leaks in the primary circuit.
4. Before operating the system, make sure that all valves are working properly and
that the system is completely filled with water and/or antifreeze fluid.
5. Make sure that the primary system works properly. This can be checked by touching
the intake pipe (upper part of the collector) and the return pipe to the reservoir
tank (bottom part of the collector). The intake pipe should be hot and the return
temperature should be significantly lower.
10.0 Instalación y mantenimiento
Instalação e manutenção
Installation and maintenance
Installation et maintenance