Flat-plate installation instructions
Flat-plate solar water heater installation, including: the host bracket assembly installation, installation of the collector, water tank installation, intelligent controller and electric auxiliary system installation, system installation, and the host pipe reinforcement.
1, the installed base
In the bracket before installing precast concrete barrier, then the stent placed in the concrete barrier, and with the bolt fixed. Concrete barrier and embedded parts bracket hole layout dimensions according to the size of production.
2, the host installation
Flat bracket assembly
Note: Cover the collector, water tank and connecting pipes installed after the final installation.
Water heater installation host must be fixed according to the following requirements:
a, with a fine wire rope from the top collectors bracket stayed along the four directions, between two symmetrical, and the building fixed;
b, one end of rope connected with the building, the building must be strong position in the hole, wedge expansion linked to the expansion of hook into the hole depth is greater than 5 cm in order to ensure the stability of the host. Or a bad environment based on the actual installation flexibility, but the host must ensure the stability and wind resistance.
Top of the hill bracket mounting
Bracket fixed
1, the piping system installation
include: valves, pipes up and down the road, insulation materials, pipe fittings and so on.
Before installation the tank should be carefully examined whether the foreign body, the installation process piping is prohibited debris mixed in, to prevent the use affect the normal operation of the system.
Between the collector and water tank connected:
Collector and water tank connection between the use of bellows, plus heat pipe.
Installation charge of road:
Solar water heater pipe connection varies by model and location can also be designed according to user needs on-site, this article provides only a typical heat pipe installation instructions and specifications
? try to set aside or embedded piping.
? pipeline should be the shortest distance, and to maintain high to low, to avoid anti-slope.
? To prevent the hot water return line check valve must be installed. Check valve installed in the hot water piping connected with the location, and along the vertical direction of the installation, ensure the arrow up, tap water with the same direction.
? non-blocking vents.
? All piping must be effectively fixed. Select the appropriate size of tube cards, control cards at a distance not greater than 1 m
? Solar hot water systems and water connection pipe valve should be installed. If the water pressure is higher than 0.6MPa, the installation should be in the inlet pressure limiting valve to ensure water pressure is not higher than 0.6MPa.
Pipe insulation:
Recommended to use high-quality thermal insulation material of polyurethane, rubber and plastic materials or polyethylene (thickness 20-50mm), easy installation and removal, non-absorbent, low thermal conductivity and good dimensional stability.
After passing the test the water pipe installation with the tropics, then insulation, pipe insulation installation steps are as follows:
? cover the insulation tube 30 cm from the pipe to the bottom under the tap and overflow pipe all the way (up and down pipes, overflow pipes tied together). Tap in the upper and lower mouth and overflow must set aside an additional 15 cm long pipe insulation to prevent shrinkage cracks occur.
? antifreeze key positions (pipe interface, the interface through walls) to enhance thermal insulation. Tube and pipe insulation should be combined with tight, non-existence of cracks, leak, leak and so on.
? outer layer should be fully wrapped with tape tightly around the outside and then a layer of aluminum foil.
? After installation, heat pipe to smooth vertical and horizontal, non-sagging parts. Heat pipe solar water heater with a fixed host to take measures.
Pipe freezing:
Requirements in the ice regions with tropical outdoor pipe must increase the frost, with tropical anti-aging, self-limiting temperature, start fast, low operation cost, easy installation and maintenance, thermal stability and other characteristics.
Caution:
? power should be strictly in accordance with performance indicators tropical design and construction, excessive use is strictly prohibited.
? Power line capacity options: a single power locks with the total traffic load current electrical connection with the tropical length is proportional to the power line carrying capacity should be based on current and antifreeze used start with the length of choice.
? the local temperature is below 4 ?, power should start with the tropics, the local temperature is higher than 4 ?, turn off the power to prevent energy waste and other accidents.
? Please try after pipeline installation after the installation of electric water heating cable.
To avoid electric tracer in the course of a security risk, barbaric operation is prohibited during the installation to prevent electrical heating cable outer jacket damage due to external force and, with your electrical construction personnel in accordance with the operating instructions tropics.
1, the installation of electric heating
If customers need to power auxiliary heating, it is necessary to connect the customer\\ s electric heating part of the actual situation. 3C power cord with in line with the requirements of 3 × 1.5mm rubber cable for outdoor use. According to actual demand intercept length of the cord. As shown by Figure XIII, first remove the electrical cover to protect the little box, stripping a good power cord into the connection hole, and fire, earth, zero access terminals, respectively, were L, N hole and pressed.
Pressed with a pressure line card, power cord, ensure that the pressure in the pressure line card power cable jacket on, and use a screwdriver to tighten the pressure line card, Reattach the cover. Strip, the pressure line to ensure that the ground the longest, followed by the zero line, the shortest line of fire.
According to customer demand, the other end of the power cord or plug leakage protection temperature controller, temperature controller and installation instructions see the temperature controller\\ s instructions.
Note
? Check the meter, power supply and installation of interior electrical components used to ensure that heating and electric power (see product data sheet) to match the non-overload!
? domestic installation must use 220V, 50HZ AC leakage protection device connected through the electric heating water tank and controller power supply.
? set up in a good position close to the tank grounded three-pin 16A socket; outlet must be grounded, ground, zero line strictly separate, three-hole socket is strictly prohibited in the ground and neutral connected together; on-site inspection lines, heating pipes poles and shell resistance, measured with a multimeter should be no reading, socket should be used for leakage protection plug with matching outlet prohibited use of poor quality, so as not to damage the cord, dangerous.
? outlet and temperature controller must be installed in a dry place and easy to observe the position.
2, the medium filling
Flat-plate collector under any circumstances do not recommend the use of direct heating, and heat transfer heat transfer medium must be indirect heating unit. The use of direct heating, the need to address the prevention of scaling and ice flow problem.
1) pipeline inspection
See flat-plate collector and water tank piping is connected properly, tighten pipe fittings, pipe fixed and reliable;
2) pressure tank pressure test piping
First tank T / P valve is open, close, end users of hot water the water valve, open the tap water inlet valve until the water tank filled with water and close the water inlet valve T / P valve, the pressure pump receives heat water outlet, open the hot water valve, start pressure pump start pressure, the pressure rose to T / P valve (0.6MPa) open up, when the T / P valve is automatically closed after record pressure, careful observation of the electrical connections for any leaks phenomenon, 10min of T / P valve is automatically closed after the pressure drop of not more than 0.02MPa, leakage is not qualified.
3) non-pressure tank pressure test piping
After connecting piping, hot water end users off the water valve, open the tap water inlet valve, exhaust valve until the tank overflow water to close the tap water inlet valve with a rag and wipe the surface of the tank and the connection carefully observe the connection point without leakage, 10min qualified internal leakage.
4) The collector loop piping pressure test
Pressure, non-pressure tanks and tank testing to ensure that after passing the connecting pipe to keep the water tank full of liquid state, the test pump connected to the tank filling mouth, open the pressure relief valve, open the pump filling, full of water Close the pressure relief valve and continuous pressurized until the pressure relief valve automatically open up to observe the loop piping for leaks, pressure for 10 minutes, no leakage is qualified.
5) medium filling
Collector medium (ice region antifreeze, non-freezing region of pure water) with the three filling process until it is fully. Close the pressure relief valve is full of media is automatically closed to prevent the system running media evaporation.
Note: matching media
Ice area in winter do not use softened water used to do thermal media, thermal media plus inhibitors, defoamers, etc., sufficient to prevent the collector scale.
Be sure to use the winter ice area do heat transfer medium used antifreeze, antifreeze recommend the use of ethylene glycol solution, the freezing point of antifreeze to at least the local minimum temperature lower than 10 ?. See instructions antifreeze antifreeze is valid, once a year should be checked for anti-freeze. Check the contents, including the freezing point, density, and also used in antifreeze should be visually checked and found that density, thickening, increased freezing and antifreeze become turbid, bad, taste, foam, etc. should be replaced.
3, Lightning
Collector installed on the roof, to prevent being struck by lightning, you need to install the lightning protection within the scope of effective protection, such as roof or with no lightning protection lightning protection facilities, but not water heater, you need to make a lightning rod and ground facilities .