Solar access
Shade-free exposure during useful solar hours; orientation and tilt are confirmed at survey.
FPC installation · Patna
A correct installation protects output, roof and service life.
See the pre-installation checks, exact work sequence, commissioning tests, accessories and avoidable mistakes for flat-plate systems.
Roof and access
Usable area, structural capacity, waterproofing, lifting route and safe maintenance clearance.
Water quality
Hardness, TDS, chlorides and source determine direct/indirect loop and tank material.
Pressure and supply
Static/dynamic pressure, overhead head and pump supply determine valves and pressure class.
Eight-stage method
Step-by-step FPC installation procedure.
Survey daily litres, peak use, roof, shade, water and pressure.
Issue layout: collector rows, tank, pipe route, valves, access and structure.
Prepare anchored supports without compromising waterproofing; verify level and wind resistance.
Lift and mount collectors, preserving glass, frame and pipe connections.
Place tank and connect hot/return flow with unions, valves, vents, drain and relief path.
Insulate every exposed hot surface and weather-clad outdoor insulation.
Flush debris, fill gradually, purge air, pressure/leak test and prove safety devices.
Measure inlet/outlet/tank temperatures, verify circulation, document settings and train the user.
Conceptual educational cutaway—not a construction or manufacturer drawing.1 · Tempered solar glass
Admits short-wave sunlight and limits convective loss while protecting the absorber.
2 · Weather seal
Keeps rain, dust and humid air away from the insulated collector box.
3 · Selective absorber
Dark metal surface absorbs high solar energy while limiting thermal re-radiation.
4 · Copper header and riser circuit
The lower header distributes cooler return through bonded risers; the upper header collects heated flow.
5 · Back/edge insulation
PUF or mineral wool slows conduction through the rear and sides.
6 · Casing and frame
Provides weather protection, mechanical support and mounting points.
7 · Cold return inlet
Admits cooler tank/loop water to the lower header.
8 · Heated outlet
Carries collector-heated flow toward the tank or heat exchanger.
Avoid these failures
Installation mistakes that reduce performance.
- Persistent shade or wrong orientation without compensating design.
- Reverse pipe slope and high points that trap air in thermosiphon loops.
- Rigid connections transferring structural stress into collector headers.
- Uninsulated or UV-exposed pipe insulation causing heat loss.
- Unsafe relief termination, missing isolation or uncontrolled pressure.
- Filling a stagnating hot collector suddenly with cold water.
Domestic work may be completed within a day after the site is ready; institutional work depends on fabrication, lifting, civil readiness, hydraulic scope and safety clearances. Final timeline and price are issued only after survey.