Solar set 2 x SR 22 vacuum tube collector without storage tank

Solar set with two WEBER SR 22 vacuum tube solar collectors without DHW cylinder.

SOLAR KEYMARK certified to take advantage of subsidy programmes!

GENERAL INFORMATION


High-quality solar set with 2 solar tube-vacuum collector SR 22 by WEBER. The set does not include a DHW cylinder. It is recommended to equip the set with a DHW cylinder with a capacity of up to 150 - 250 litres. As standard, in the auction presented here we offer the SR 22 vacuum solar collector complete with mounting kit for sloping roof. If you wish to mount the collector on a flat roof, please select the same device in another auction with the note "flat roof".

The assumed collector area provides efficient water heating of approximately 60% of the annual demand. The remaining 40% should be provided by a central heating boiler connected to the upper cylinder coil or by an electric heater.



COMPONENTS


2 x solar vacuum tube collector SR 22
1 x WEBER CONTROL CLASSIC PWM solar controller
1 x HYDRA GPS PWM electronic solar pump group with rotameter
1 x diaphragm vessel suspension
1 x solar expansion vessel (expansion tank) 18 l.
1 x propylene glycol, concentrate 10 l
1 x cross coupling fi 22 x 3/4"
1 x compression double coupling fi 22
1 x clamping elbow fi 22 x 3/4"



TECHNICAL SPECIFICATIONS OF MAIN COMPONENTS

Vacuum tube solar collector SR 22 with mounting kit for sloping roof

Warranty: 10 years
Number of vacuum tubes: 22
Dimensions (W x L x H): 191.7 x 171.5 x 12.5 cm
Total surface area: 1.77 m²
Aperture area: 2,04 m²
Heat carrier: Propylene glycol with water
Stagnation temperature at 1000W/m², 30°C: 220°C
Absorption: > 94 %
Emission: < 8 %
Permissible installation angle: 15°-50°
Housing colour: black
Manifold (inner): red copper
Collector (outer): aluminium alloy
Daily efficiency: ≥55%
Hail resistance: 25 mm
Maximum operating pressure: 12 bar
Heat pipe: anti-freeze > -35 degrees
Connection diameter: 25.4 mm = 1"
Liquid capacity: 1,5l
Weight empty with assembly kit: 79.5 kg
2 mm thick hail-proof borosilicate glass
High efficiency thanks to copper absorber sprayed onto the glass
HEAT PIPE technology to protect the unit from drastic overheating on sunny days when heat extraction from the unit is not possible
Tubular system made of copper
Stable support structure made of stainless steel
Mounting kit for installation of solar panels on pitched roofs
Special heat pipe protection against unsealing
Solar Keymark certified

WEBER SOL CLASSIC PWM controller

Large LCD display
Intuitive menu
Pump control with PWM signal
Graphic display of system operation
Solar pump speed control
Possibility to control a domestic hot water circulation pump or an electric heater
Collector overheating protection function
Tank overheating protection function
Holiday function
Anti-freeze function
Solar energy meter

Solar pump group HYDRA GPS PWM with rotameter

Energy-saving electronic circulating pump Hydra GPS II 20-8-130 PWM2
Thermal insulation (casing)
Two ball check valves (integrated) with non-return valves and thermometer
Rotameter (2-12 l/min)
Safety group with pressure gauge and safety valve (6 bar)
Air separator

Installation fluid

The solar fluid is manufactured on the basis of propylene glycol, which means that it is completely safe for health in the event of any possible leakage into the domestic water. The fluid is hygienically certified by the National Institute of Hygiene, which is an additional guarantee of the high level of safety. The fluid is supplied in a 10-litre container as a concentrate with a freezing point below -64°C. When diluted with water, up to 30 litres of ready-to-use mixture is obtained, which is sufficient for typical installations.

Solar expansion vessel (expansion tank) 18 l

Despite appearances, the diaphragm tank is one of the most important components of a solar thermal system. The selection of a vessel with too low an operating temperature or too low a permissible pressure can cause frequent operating problems.

The maximum operating temperature of the diaphragm vessel in the kit is 120°C, and the permissible operating pressure is as much as 10 bar, which guarantees high stability of the entire system.

Connection set


The kit is equipped with a system of brass compression fittings enabling efficient and secure connection of the collector to the pipes.

1 x Compression elbow with ¾" GZ connection enabling efficient connection to stainless steel corrugated pipes.
1 x Compression cross coupling with ¾" GZ connection for efficient connection to corrugated stainless steel pipes. The connector is equipped with a vent for easy filling and with an immersion sleeve for the temperature sensor of the controller.
1 x double compression fitting fi 22.


REMARKS: As a standard, in the presented auction we offer a vacuum solar collector complete with a mounting kit for sloping roof. If you wish to mount the collector on a flat roof, you will need to purchase such a kit. If you have any questions, please contact our sales advisor.


ADVANTAGES


Minimal running costs
Living in line with the ECO trend
Quick payback period
Fully maintenance-free
Long service life