Tools & HE accessories
HE-Check
The HE-Check takes over where conventional tools fail – at the question whether a malfunction is caused by a pump fault or the controller signal. With the HE-Check, the function of the pump and the signals of the controller can be checked quickly and easily. The testing device measures and generates 0-10 V pump control signals as well as PWM signals in a frequency range from 40 up to 2000 Hz. For testing bidirectional pumps, PWM signals can also be generated and measured simultaneously. Additionally, the device will indicate the pump status or the flow rate respectively. The HE-Check comes with a versatile set of measuring and signal cables for different pumps and controllers. The practical storage bag and the robust housing make the HE-Check ideal for daily application.
Test box
Solar systems reach an increasingly high degree of efficiency but in many cases they can still further increase their efficiency through regular and professional maintenance. The test box is a professional service box for checking solar thermal systems quickly and easily. Problems affecting system operation can be detected reliably with the help of these measuring and testing devices.
Heat transfer fluid
Propylene-glycol-water mixtures are commonly used as the heat transfer fluid. An antifreeze concentration of about 40 % of glycol in the mixture prevents the system from damage. even at temperatures of -21 °c, the system remains in an operable state. temperatures below this protection point will cause the formation of ice pulp, which however is not able to destroy tubes and piping. However, today's high-end flat collectors and direct-flow vacuum tube collectors may cause the premature degrading of conventional heat transfer fluid at high stagnation temperatures. In order to prevent this process, the operating pressure of the system can be limited to 4 bar or a high-temperature-resistant heat transfer fl uid can be used.Important notice about the use of heat transfer fluids:
Tyfocor® L and LS are not subject to the ordinance of Hazardous Substances.
SBS 2000 filling and flushing station
For professionals, filling and flushing heating and solar thermal systems is a day-to-day business. The RESOL SBS 2000 is the ideal companion for a professional performance – and the safe, quick and clean way to complete filling and flushing work. The large, smooth-running wheels and the ergonomic handlebar make it easy to manoeuver the station even when it’s filled. The robust 30-litre tank is semi-transparent, visualising the filling level at any time. The SBS 2000 can be used with water and water-glycol mixtures.
PSW Basic
The PSW Basic Pump signal converter is used for connecting speed-controlled high-efficiency pumps with a PWM or 0-10 V control input to a controller without a corresponding output. Thus, when replacing the pump, speed control can be enabled without replacing the controller. The PSW Basic is small, easy to install and simple to connect. It covers a large part of the most common signal combinations – it converts the signal of a speed-controlling semiconductor relay into either a PWM or a 0-10 V signal, both of those inverted if necessary.
PSW Premium
The PSW Premium Pump signal converter is used for connecting speed-controlled high-efficiency pumps with a PWM or 0-10 V control input to a controller without a corresponding output. Thus, when replacing the pump, speed control can be enabled without replacing the controller. The functionality of the PSW Premium is very similar to that of the PSW Basic, but it is additionally equipped with a relay output for the power supply of the pump. Moreover, it has an overrun function to reduce the number of switching processes for the high-efficiency pump.
PSW Universal
The PSW Universal Pump signal converter is used for connecting speed-controlled high-efficiency pumps to a controller without a corresponding output. Due to its flexible adjustment possibilities, almost any pump can be connected. Thus, when replacing the pump, speed control can be enabled without replacing the controller. The PSW Universal offers a total of 80 different signal combinations between bursts, leading-edge and trailing-edge phase cutting, PWM, 0-10 V, 0-20 mA, 4-20 mA and their inverted variations. It is additionally equipped with an L' output that renders an external power supply to the pump unneccessary.
PSW Premium Set
With the PSW Premium Set, converting your system to high-efficiency pump technology is simple and cost-effective. It contains an energy-saving Wilo PARA high-efficiency pump and a PSW Premium pump signal converter that enables the connection of a high-efficiency pump to a controller without a corresponding output. The pump and the signal converter are pre-connected in order to make installation as quick and as easy as possible. The PSW Premium Set is available with a choice of different pumps.
