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High-performance automatic air vent for solar heating systems. Working temperature range: -20—320ºF. Max. working pressure: 150 psi. Max. discharge pressure: 150 psi

The Steca TA OP1 overvoltage protection unit is a connection socket in a splash-proof IP65 protective case and serves to protect the collector sensor against local lightning strikes and externally induced voltage spikes.

 A varistor protective diode protects against atmospheric overvoltages that can lead to the destruction of the collector sensor. The use of the Steca TA OP1 is generally recommended for extra protection of the collector sensor in any type of solar thermal system. In addition, the simple operation of the spring terminals allows rapid and simple installation of the collector sensors using a sensor extension cable.

The Vitosol 200-T is a high-performance vacuum tube solar collector that is ideal for DHW/combination space heating systems with versatile horizontal or vertical installation on roofs, walls or freestanding. The Vitosol 200-T is ideal for incorpation into any architectural design. Absorber surface area: 22 and 33 sq.ft / 2 and 3 sq.m

Model			SD2A 2m²	SD2A 3m²
No. of tubes			20	30
Gross area		sq. ft sq. m	30.98 2.88	46.5 4.32
Absorber surface area		sq. ft sq. m	21.6 2.01	32.5 3.02
Total dimensions
Width		inches mm	55¾ 1418	83¾ 2127
Height		inches mm	80½ 2043	80½ 2043
Depth		inches mm	5½ 143	5½ 143
Weight		lbs kg	134.5 61	208 94.6

The Vitosol 100-F is an economy series flat plate collector that offers high performance and quality construction at an affordable price. Ideal for any solar thermal application especially domestic hot water (DHW) or pool heating. Absorber surface area: 25 sq.ft / 2.3 sq.m

Model		SV1	SH1
Installation		Vertical	Horizontal
Absorber Surface Area	sq. ft sq. m	25.0 2.32	25.0 2.32
Optical Efficiency	%	74.3	74.3
Collector Dimensions
Width	inches mm	41¾ 1056	93¾ 2380
Height	inches mm	93¾ 2380	41¾ 1056
Depth	inches mm	2¾ 72	2¾ 72
Weight	lbs kg	95 43	95 43

The interface adapter RS-COM enables the connection of a PC to iSolar Plus controller with V Bus. Service Center Software allows the measured data to be recorded numerically in a log-data file. The adapter does not need an external power supply. Includes RS232 cable.

The new Steca TR 0502 solar thermal controller closes the gap between the already successful Steca TR 0301, TR 0301sc and TR 0603 temperature difference controllers.

With its animated graphic display and elegant design, it continues the success enjoyed by this family of controllers. This controller provides everything to operate your solar thermal system safely over a long service life. The Steca TR 0502 controller monitors and controls solar thermal systems with up to two differently oriented collector arrays and a maximum of two domestic hot water or buffer storage tanks. The large graphic display shows the animated control circuits, which allows you to view the operating statuses of each system. The clearly arranged display ensures easy operation using pictograms. Pre-programmed systems enable universal usage. The Steca TR 0502 controller has five inputs for recording temperatures or pulse values, as well as two outputs (one is speed-controlled) for controlling pumps or switching valves.

Air separator for solar heating systems. Working temperature range: -20—320ºF. Max. working pressure: 150 psi. Max. discharge pressure: 150 psi. Connections: Main, ¾" NPT, female Drain, ½" NPT, female

The most environmentally-friendly method of domestic hot water heating, as well as a backup/supplement for low-temperature heating purposes. Thanks to the highly effective Sol-Titan coating, the vacuum tube collector Vitosol 300-T can even utilize diffused solar radiation. It is therefore suitable not only for domestic hot water applications, but also as a backup for central heating purposes. Absorber surface area: 22 and 32 sq.ft / 2 and 3 sq.m

Model		SP3 2m	SP3 3m
Absorber Surface Area	sq. ft sq. m	22 2.05	33 3.07
Optical Efficiency	%	82.5	82.5
Collector Dimensions
Width	inches mm	55¾ 1419	83¾ 2126
Height	inches mm	78½ 1996	78½ 1996
Depth	inches mm	4¾ 122	4¾ 122
Weight	lbs kg	99 45	150 68

The Vitosol 200-F flat plate solar collector is attractive not only for its low investment cost but also for the energy it saves. With the new high efficiency Sol-Titan coating solar energy harvest is now even more efficient. Durable, corrosion resistant construction using materials such as powder coated aluminum, copper and stainless steel, as well as 3.2 mm special low-iron solar glass ensure a long service life and maintain high efficiency for years to come. Absorber surface area: 25 sq.ft / 2.3 sq.m

Model		SV2A	SH2A
Absorber Surface Area	sq. ft sq. m	25.0 2.32	25.0 2.32
Optical Efficiency	%	79.3	79.3
Collector Dimensions
Width	inches mm	41¾ 1056	93¾ 2380
Height	inches mm	93¾ 2380	41¾ 1056
Depth	inches mm	3½ 90	3½ 90
Weight	lbs kg	90.2 40.9	90.2 40.9