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  1. Caleffi Series 257 iSolar Plus Multi-functional Temperature Differential Controller

    Caleffi Series 257 iSolar Plus Multi-functional Temperature Differential Controller

    Caleffi Series 257 iSolar Plus Multi-functional Temperature Differential Controller
    The iSolar™ 257 series are multi—functional temperature differential controllers that provide complete control of the solar thermal system for safe and long—lasting operation. The microprocessor based controller monitors and controls thermal solar systems by means of a collector sensor and a storage tank sensor. The controllers also perform important system monitoring and safety functions. The system parameters and measured values can be changed and viewed on the large LCD display. The controller is equipped for up to four temperature sensor inputs and one or two 120 VAC outputs (some models) for activating the solar circuit pump and second 120 VAC output for activating a valve or second pump. The controller is additionally equipped with VBus® for two-way communication between modules, PC’s or data loggers.
    $285.34

  2. Viessmann Vitosol 200-F Flat Plate Solar Collector

    Viessmann Vitosol 200-F Flat Plate Solar Collector

    Viessmann Vitosol 200-F Solar Collector
    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


    ModelSV2ASH2A
    Absorber Surface Areasq. ft
    sq. m
    25.0
    2.32
    25.0
    2.32
    Optical Efficiency%79.379.3
    Collector Dimensions
    Widthinches
    mm
    41¾
    1056
    93¾
    2380
    Heightinches
    mm
    93¾
    2380
    41¾
    1056
    Depthinches
    mm

    90

    90
    Weightlbs
    kg
    90.2
    40.9
    90.2
    40.9

  3. SunEarth Empire Solar Thermal Panels

    SunEarth Empire Solar Thermal Panels

    SunEarth Solar Thermal Panel

    The Empire Series Liquid Flat Plate Collectors – The Solar Professional’s First Choice

    America’s leading distributors and contractors have made the SunEarth Empire Series liquid flat plate collectors the solar professional’s first choice. The Empire Series has everything that professional contractors demand in a solar collector: sleek appearance, high performance, versatility, ease of installation, and rugged field-tested durability. SunEath’s Empire Series collectors have over thirty-two consecutive years of engineering and design experience built into every product. The Empire Series collectors define quality and value in the North American market

  4. Caleffi Series NA292 Shut Off Air Vent Valve 1/2" NPT Female to 1/2" Male

    Caleffi Series NA292 Shut Off Air Vent Valve 1/2" NPT Female to 1/2" Male

    Caleffi Series NA292 Shut Off Air Vent Valve 1/2" NPT Female to 1/2" Male
    Shut-off for automatic air vent. Working temperature range: -20—360ºF. Max. working pressure: 150 psi.
    $24.01

  5. Caleffi Series NA122 Union Connection Set 1/2" Sweat Union to 1" Male Thread

    Caleffi Series NA122 Union Connection Set 1/2" Sweat Union to 1" Male Thread

    Caleffi Series NA122 Union Connection Set
    Union Connection Set for 1" Male Threads
    $15.19

  6. Steca Overvoltage Protection Unit

    Steca Overvoltage Protection Unit

    Steca Overvoltage Protection Unit

    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.

    $82.14

  7. Caleffi Series 257 iSolar BX Multi-functional Temperature Differential Controller

    Caleffi Series 257 iSolar BX Multi-functional Temperature Differential Controller

    Caleffi Series 257 iSolar BX Multi-functional Temperature Differential Controller
    The iSolar™ BX is a multi-functional temperature differential controller with add-on system functions for use in a wide variety of solar thermal heating applications. iSolar™ BX is equipped with four relay outputs; three triac pump speed control relays and one standard relay. These outputs include two pulse width modulation (PWM) outputs that enable energy conservation measures for high-effi ciency direct current (DC) pumps. The controller is equipped with fi ve Pt1000 sensor inputs, two analog Grundfos sensor inputs, and one impulse fl ow meter input. Twenty six system confi guration options are predefi ned for control of a standard solar water heating system, drainback systems, supplemental space heating, multiple storage tanks, heat dump and storage tank booster heating.
    $314.86

  8. Viessmann Vitosol 200-T Vacuum Tube Solar Collectors.

    Viessmann Vitosol 200-T Vacuum Tube Solar Collectors.

    Viessmann Vitosol 200-T Solar Collectors
    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


    ModelSD2A 2m²SD2A 3m²
    No. of tubes2030
    Gross areasq. ft
    sq. m
    30.98
    2.88
    46.5
    4.32
    Absorber surface areasq. ft
    sq. m
    21.6
    2.01
    32.5
    3.02
    Total dimensions
    Widthinches
    mm
    55¾
    1418
    83¾
    2127
    Heightinches
    mm
    80½
    2043
    80½
    2043
    Depthinches
    mm

    143

    143
    Weightlbs
    kg
    134.5
    61
    208
    94.6

  9. Caleffi Series 257 iSolar Multi-functional Temperature Differential Controller

    Caleffi Series 257 iSolar Multi-functional Temperature Differential Controller

    Caleffi Series 257 iSolar Multi-functional Temperature Differential Controller
    The iSolar™ 257 series are multi—functional temperature differential controllers that provide complete control of the solar thermal system for safe and long—lasting operation. The microprocessor based controller monitors and controls thermal solar systems by means of a collector sensor and a storage tank sensor. The controllers also perform important system monitoring and safety functions. The system parameters and measured values can be changed and viewed on the large LCD display. The controller is equipped for up to four temperature sensor inputs and one or two 120 VAC outputs (some models) for activating the solar circuit pump and second 120 VAC output for activating a valve or second pump. The controller is additionally equipped with VBus® for two-way communication between modules, PC’s or data loggers.
    $186.94

  10. Viessmann Vitosol 100-F Flat Plate Solar Collector

    Viessmann Vitosol 100-F Flat Plate Solar Collector

    Viessmann Vitosol 100-F Solar Collector
    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


    ModelSV1SH1
    InstallationVerticalHorizontal
    Absorber Surface Areasq. ft
    sq. m
    25.0
    2.32
    25.0
    2.32
    Optical Efficiency%74.374.3
    Collector Dimensions
    Widthinches
    mm
    41¾
    1056
    93¾
    2380
    Heightinches
    mm
    93¾
    2380
    41¾
    1056
    Depthinches
    mm

    72

    72
    Weightlbs
    kg
    95
    43
    95
    43

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