20 Person – Comfort Kit

Solar system for domestic hot water equipped with 120 vacuum tubes (6 x CS20). This package has been designed to meet the needs for domestic hot water in accommodation units of up to 20 guests.

The water tank is equipped with two coils and optionally can be equipped with electrical resistance. The thermostatic valve included has the role of optimizing the consumption of domestic hot water.

Based on a specific demand, the following components will be added to the package: insulated stainless steel flexible pipes, fittings and fixing / tilting systems for solar panels.

System components:

Product / CodeC.425C.324
Solar CollectorCS 20 x 6CS 20 x 6
Water Tank1000 l, double coilNA
ControllerSR 208CSR 208C
Pump stationP6P6
Expansion vessel80 L80 L
Antifreeze liquid20 kg x 3 + 10 kg x 120 kg x 3 + 10 kg x 1
Valve1 " 1"
Solar vent YESYES
Fittings3 x DN163 x DN16
Expansion vessel flexible connectionDN16, 100 cmDN16, 100 cm


  • 10 years for the solar collector
  • 3 years for the water tank
  • 2 years for the rest of the accesories

Each tube works independently and the damage of one tube does not affect the functionality of the  solar system but reduce the absorption and heating capacity.

The vacuum tubes are equipped with heat-pipes and do not contain water. The solar panels with vacuum tubes offer the highest performance of capturing the solar energy. The solar tubes are made of borosilicate glass, having chemically deposited inside three layers of absorption that amplify the effect of solar radiation. The vacuum inside the tube ensures the capture of solar radiation and its transport to the collector ramp, without thermal losses. The cylindrical shape of the tubes gives them the ability to capture optimal sun rays throughout the day, thus ensuring a good performance even in cloudy sky conditions.

Solar Collector Fittings – 3/4 ″ connection (outside).

1. Solar Collector with 20 vacuum tubes CS20 and heat-pipe technology:

  • Dimensions (mm) : 1670 x 1990 x 125
  • Weight: 63 kg
  • Absortion surface : 1.98 mp
  • Total surface : 3.32 mp
  • Liquid capacity : 1666 ml
  • Maximum pressure : 800kpa/116Psi
  • Heat-pipe stagnation temperature: 180°C
  • Vacuum tube stagnation temperature : 280°C
  • Maximum output: 1290 W / 4420 Btu
  • Optimum flow rate : 2.5 l/min
  • Pressure loss at optimum flow rate : 1,2 KPa (12 mbar)
  • Maximum flow rate: 18 l/min
  • Daily heating capacity (Δ40°C) : 140-200 l

! The collector’s tilting and anchoring system should be ordered according to roof’s type.

2. 1000L, double coil, solar water tank:

  • Height: 2000mm;
  • Diameter: ᴓ1010;
  • Insulation: 80 mm (PU rigid);
  • Heat exchange surface S1/S2: 3.04/2.03 mp;
  • Coil volum  S1/S2: 19.95/13.34 l;
  • Tank nominal pressure: 8 bar;
  • Coil nominal pressure : 6 bar
  • Weight: 278 kg

3. Panosol P6 pump station:

  • Grundfos-Solar 15-65 recirculation pump, with flow rate 2-15 l/min;
  • Spherical valve with integrated sense valve, thermometer and connection for the safety group;
  • Flow meter with closure and adjustment, with side valve for filling and draining;
  • 6 bar safety valve;
  • Output 3/4″ to the expansion vessel
  • 10 bar manometer;
  • Spherical valve for filling and draining;
  • Wall stand equipment;
  • Insulation

4. SR208C solar controller 

  • Solar applications available: 1;
  • Sensors available: 3;
  • Output relays: 2;
  • Monitored solar fields : 1;
  • Monitored tanks : 1

5. 80L, expansion vessel 

  • Equipped with wall stand
  • Equipped with flexible connection
  • Maximum working pressure : 10 bar
  • Maximum working temperature: 110°C;
  • Connection: 1″

6. Solar air vent 

  • Maximum working temperature: 180°C;
  • Connection: 1/2″

7. Solar antifreeze liquid -28°C

  • Polypropylene glycol;
  • Working temperature range: -28°C/180°C.

8. Thermostatic deviation valve 1″

      • Equipped with 4 adjustment positions;
      • Temperature range: 32°C – 50°C;
      • Maximum differential pressure: 2 bar;
      • Maximum temperature in the primary circuit: 100°C;
      • Maximum working pressure: 10 bar;
      • Working liquid: water

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