Why SineUPS?

• Why SineUPS (Uninterruptible Power Supply)?

  The ideal form for AC (Alternating Current) devices is a sine wave. Most of the UPSs on the market (including the computer UPS) generate the so called Modified Sinewave, which actually is comprised of rectangular impulses and the output voltage is totally different, compared to the mains voltage.

  All inductive loads (electrical motors, pumps, transformers) and and most of the specialized electronics are designed to work only with sine wave voltage. The non-sinewave power makes these loads work inefficiently (higher power consumption, heating up) as the precise electronics might even not work at all (gas boilers, pellet boilers, etc.).

  SineUPS can be used to power domestic and industrial devices:

  • circulation pumps
  • gas & pellet boiler controls
  • ventilation
  • computers
  • audio, TV

• What model do I need?

  SineUPS guarantees flawless operation of all kinds of loads, designed to work with voltage of 230V / 50Hz. The choice of specific model UPS depends of the rated power of the load (W) and the work time in emergency mode. First you need to calculate the total power of the device(s) you intend to power by the UPS. Choose a SineUPS mode, which nominal output power exceeds your needs.

  If a power of 100W is enough for you, then you can choose whether to get model with internal battery which is enough to power a 40W load for 2 hours, or a model with external battery. The capacity of the external battery is chosen according to the work time you wish to have (see below).

• What battery do I need?

  SineUPS works with 12V lead-acid batteries. The models that do not have an internal battery should be connected to an external one. They are two types - serviceable and non-serviceable (encapsulated). If you will be using the device in home environment, we recommend using encapsulated battery (gel type), as otherwise it is possible that some dangerous explosive and poisonous gases will be emitted from battery's electrolyte.

• How long will it work when the power fails?

  In order to calculate the work time in inverter mode (when the power fails) you need to know the power of the load - P (W) and the battery capacity C (Ah). Then the work time of SineUPS in hours t (h) is:

  t = 12 x C / P

  For instance, a circulation pump rated 100W and external battery with 60Ah capacity will work 12 * 60 / 100 = 7.2 hours.

  This time is approximate as lots of factors will affect the operation of the devices. For example the battery capacity depends on the charge, ambient temperature and age.

  If you want to calculate the battery capacity that you need C (Ah), then based on the load's power P (W) and the work time t (h):

  C = t x P / 12

  For instance for a 100W circulation pump and expected work time of 4 hours you need a battery with capacity of 4 * 100 / 12 = 33Ah.

• What protections does it have?

  SineUPS is completely automated device, intelligently controlled by a microcontroller. It automatically switches between mains and inverter mode, also charges the battery when mains power is present. The device has the following protections:

  • reverse polarity external battery connection
  • overload and short-circuit on the output in inverter mode
  • external fuse for short-circuit in mains mode
  • low and high battery voltage
  • overheating

• Can it work without battery?

  No. With no connected battery, the device can not perform its purpose - protect the connected load in case of power failure.

• Is there a SineUPS model having both internal and external battery?

  Yes! We can offer you SineUPS model S100a+, which besides the internal battery has leads for connecting external battery. When an external battery is connected, the internal one is automatically disconnected, so a different charge current is provided for the different batteries. When the external battery is disconnected, The UPS automatically switches to the internal battery.

Why Differential Thermostat?

• Why do I need Differential Thermostat?

  The Differential Thermostat controls the heat exchange between solar collector and boiler. It provides optimal control of the process as well as monitors for emergencies thus preventing extreme and dangerous conditions.

  The alternative heating systems are becoming more and more popular in our everyday life. The solar collectors are eco-friendly and economically viable way of transforming the solar power to heat. The differential thermostat we have developed, provide comfort utilizing the solar collectors and the smart usage of hot water from the boiler. From the display reading in every moment you can monitor and control what the temperatures of the solar collector and boiler are. The differential thermostat will protect you from extremes - both from too high or too low temperatures, from overheating and freezing.

• What is the Differential Thermostat good for?

  The Differential Thermostat has wide application in various kinds of heating systems:

  • solar collector and boiler
  • fireplace and boiler
  • gas, charcoal, electrical boiler and hot water boiler

  The differential thermostat has relay outputs, which power the circulation pump (three-way valve) and the electrical boiler heater. The temperatures of the heat source and boiler are monitored via thermal sensors.

• How to operate the Differential Thermostat?

  The differential thermostat should be mounted and connected, paying a lot of attention to where you put the thermal sensors. The device is then setup according to the specifics of the system and the preferences of the client using various parameters:

  • current temperature in different parts of the heating system
  • circulation pump test
  • anti-block protection of the pump
  • holiday mode
  • emergency protection

  The differential thermostat is the remote control of your solar system. It will automatically control the way you utilize your heating installation and the sun's energy. You can monitor the state of your system from digital user interface and control the heat exchange between the collector and boiler.