Solar Water Heater

Kondaas offers complete range of solar water heaters at par with international quality standards. Advanced Evacuated Tube Collector models(ETC). Traditional Flat Plate Collector Models (FPC).

Pressured and Non-Pressured Models to meet specific requirements. Domestic Range starts from 100 lpd to 500 lpd. Project Range starts from 1000 lpd & above. Prompt & Quality Service.

Suitable for: Houses, Apartments, Hotels, Resorts, Hospitals, Hostels, Processing Industries, Boiler Feed Water & Canteens.

Evacuated Tube Collector (ETC)

About ETC

Solar water heaters are extremely good in performance in ever in dull climate condition .

These modules are very economic in cost with great performance .the pay back cost is nearly less than 2 year ,compared to electricity cost .

These modules are suitable for soft ,medium , hard water & gravity performance applications

Advantages

Advance Non Welding Technology to handle HARD Water Problems

High Performance ETC Collectors - Best Temperature Output even @ Cloudy Days

Advanced Non vent Design - To avoid air pipe cost and related problems

Superlative high density PUP insulation for Long Hour Heat retention

Premium Marine Grade Stainless Steel for longer Life

Turbulence preventer- avoid hot and cold water mixing

Technical Specifications

Length (Nominal) 1500 mm-1800 mm
Outer tube diameter 47mm - 58mm
Inner Tube Diameter 37 mm-47 mm
Glass thickness 1.6mm-2.0mm
Material Borosilicate glass 3.3
Absorptive coating Graded Al/N/Al ALN/AINSS/CU
Vacuum P 5 10-3 Pa
Thermal expansion 3.3 10-6y0C
Stagnation temperature >2500C
Absorbance (AM 1.5) >93 %( Al/N/Al) / >96 %(ALN/AIN-SS/CU)
Emittance (800C/1760F) <8 %( Al/N/Al) / <5 %(ALN/AIN-SS/CU)
Heat loss 0.8W/(m2°C)
Start Up temperature <=2 5°C (77?)

Flat Plate Collector (FPC)

About FPC

Kondaas (FPC ) model are suitable for pressurized hot water applications.

They are made with Specific need of a customer. They are available in ,food grade (304),Stainless steel, marine grade (316) steel and steel with glass enamel coating to suit, soft, medium soft and hard water applications.

Technical Specifications

Absorber material material Electro Grade-Copper-Copper.
Absorber Coating Selectively coated continuous electroplating of Black. Chrome over nickel substrate on copper sheet, with Heat treatment to withstand temperature. Up to 300 deg C. Absorptivity=0.96+/-0.02, Emissivity = 0.12+/-0.02.
Riser Copper Tube - Dia 12.7 mm x 0.54 mm Thick
Header Copper Tube - Dia 25.4 mm x 0.71 thick
Bonding between Fin &Tube Ultrasonic/Tig
Back Insulation Resin Bonded Rock wool of 48 Kg/mc, thickness 50mm.
Side Insulation Polyurethene / Rockwool of thickness 25mm.
Collactor Box 2000mm x 1000mm x 100mm
Collector Bottom Sheet Aluminum/G.l of Thickness 0.71mm.
Glass 4mm thick Hardened & toughened (tempered glass)/ Textured Glass
Insulation Rock wool - 50mm thick
Side Insulation PUF - 25mm thick all round
Internal Lining Aluminium foil - 30 micron
Fin Coating NALSUN - Black selective coating with > 93% absorptivity
Box Material Aluminium extrusion
Back Sheet Aluminium / Gl sheet riveted firmly to box frame: 9
No of Fins 9
Connectors Brass flange / Threaded connectors at all ends
Flange 4 inches

Glass Enamel Model (GEM)

Features

Glass Enameled tank (Spring and Ultra Models)

High Selective Blue Solar Absorber

Laser Welded copper tubes to absorber

High transmission Solar Glass

Powder coated structure

Brass pipe connections

Safety valve (Spring pressurized and Ultra models)

Glycol-water* mixture heat exchanger fluid with special corrosion inbibitors. *Ultra models

Advantages

Corrosion Resistant, Clean, Hygiene and Safe

Very Efficient and long lasting

Very strong and efficient bonding with good heat transfer characteristics

More radiation is allowed to impingo on the absorber, so more solar energy converted to heat.

Long lasting, corrosion resistant

Leak proof, corrosion resistant, long lasting

Fully imported from Europe, relaible and long lasting

All weather performance and long lasting

Technical Specifications

Hot water storage tank specifications SPRING ULTRA VALUE
Material of storage tank Glass enamel coated Glass enamel coated Stainless Steel 304
Insulation CFC free PUF - Thickness : 50mm CFC free PUF - Thickness : 50mm CFC free PUF - Thickness : 50mm
Outer cladding Pre-coated steel (RAL7035) Pre-coated steel (RAL7035) Pre-coated steel (RAL7035)
Safety valve Airvent for thermosyphon & 6 bar pressure relief valve for pressurised system Airvent for thermosyphon & 6 bar safety valve for pressurised system Airvent
Electrical backup heater 2 kW backup heater / 220 V AC 2 kW backup heater / 220 V AC 2 kW backup heater / 220 V AC
Working Pressure 6 bar for pressurised system 6 bar for pressurised system Atmospheric
Tank construction - Jacket type heat exchanger -
Tank protection Aluminium anode Aluminium anode Aluminium anode with in-built replacement provision
Tank capacity 100, 200, 300 and 500 LPD 100, 200, 300 and 500 LPD 100, 200, and 500 LPD
Collector specifications
Absorber construction Single sheet absorber Single sheet absorber Single sheet absorber
Absorber coating High selective coating absorptivity : 0.95 +/-0.02 Emmissivity : 0.047 +/ -0.02 High selective coating absorptivity : 0.95 +/-0.02 Emmissivity : 0.047 +/ -0.02 High selective coating absorptivity : 0.95 +/-0.02 Emmissivity : 0.047 +/ -0.02
Riser Copper, 12.7mm Copper, 12.7mm Copper, 12.7mm
Header Copper, 25.4 mm Copper, 25.4 mm Copper, 25.4 mm
Bonding - header and riser Brazing Brazing Brazing
Bonding - absorber and harp Lazer welding Laser welding Laser welding
Back insulation Rockwool density : 48 kg/m3 Thickness : 50 mm 50mm Rockwool with owens corning black sheet Rockwool Density : 48 Kg/m3
Collector material Extruded aluminium with gray colour powder coating Extruded aluminium with gray colour powder coating Extruded aluminium with gray colour powder coating
Collector back sheet Aluminium Aluminium Aluminium
Glazing Solar glass Solar glass Solar glass
Retainer beading for glass Extruded aluminium with gray power coating (RAL 7037) Extruded aluminium with gray power coating Extruded aluminium with Blue colour power coating
Rubber beading for glass EPDM Rubber EPDM Rubber EPDM Rubber
Heat exchange medium NA Glycol mixture (Primary circuit) NA
Weight of collector (dry) 32 kgs 32 kgs 32 kgs
Maximum working pressure 10 bar 10 bar 10 bar
Mounting system (Stand) - Material Mild steel structure with power coating Mild steel structure with power coating Mild steel structure with power coating
Connections (Tank to collector) - Material Composite pipe with brass end fitting/EPDM rubber hose Composite pipe with brass end fitting/EPDM rubber hose EPDM Rubber Hose
System colour Gray (RAL 7037 & RAL 7035) Gray (RAL 7035) Gray (RAL 7035)