Summary of Contents for Senztek SolaStat-Plus
- Page 1 ™ SolaStat -1-3 An Intelligent Technology Solution for Water Heating INSTALLATION GUIDE FOR QUALIFIED PERSONNEL ONLY...
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Page 3: Table Of Contents
About the Pump Settings ..................16 Programming the SolaStat™ ................... 18 Sensor Maintenance ....................26 Trouble Shooting Guide ..................28 Programming Table ....................30 Specifications ......................31 www.senztek.com Senztek Holdings Ltd. 2009 Version 1.1– April 2013 Table of Contents... -
Page 4: Before You Begin Installation
SolaStat™-1-3 Installation Guide EFORE EGIN NS TALLATION Assemble the The SolaStat™ Controller is supplied with the following components: components Roof sensor you will need Tank sensor Inlet sensor Mains cable Pump cable Associated screws ... - Page 5 SolaStat™-1-3 Installation Guide EFORE EGIN NS TALLATION ONTINUED Assemble the You will need the following tools to install the SolaStat™: tools you will Philips1 screwdriver for lid screws need Pozi 2 screwdriver for mounting screws Note: These tools are needed to mount the SolaStat™ only, and other tools may be needed for the remainder of the installation including the sensors.
- Page 6 SolaStat™-1-3 Installation Guide EFORE EGIN NS TALLATION ONTINUED Installers need to ensure the following: Installation Precautions The controller must be installed away from water sources such as rain, leaking pipes, or wet floors; and must not be installed in damp areas like bathrooms.
- Page 7 SolaStat™-1-3 Installation Guide EFORE EGIN NS TALLATION ONTINUED Electrical When undertaking electrical installations, please note the following Precautions: All mains voltage electrical work must be carried out by a qualified electrician, especially external power outlet socket installation. A readily accessible disconnect device, overcurrent device and RCD Protection rated to suit the size of the pump plus 5VA must be incorporated in the power supply wiring.
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Page 8: Installing The Solastat™ Controller
SolaStat™-1-3 Installation Guide ™ C NS TALLING THE ONTROLLER Overview The diagram below shows how the SolaStat™ is connected to the Hot Water Cylinder (HWC), the collector, and the three sensors (ROOF, TANK and INLET). Continued on next page Version 1.1 – April 2013 Page 5... - Page 9 SolaStat™-1-3 Installation Guide ™ C NS TALLING THE ONTROLLER ONTINUED Where to The SolaStat Controller should be mounted so that: mount the 1. It is against a flat surface with sufficient strength to hold the enclosure SolaStat and any additional weight from the plugs, sockets and cables, 2.
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Page 10: Mounting The Sensors And Connecting Wiring
SolaStat™-1-3 Installation Guide OUNTING THE ENS ORS AND ONNECTING IRING Introduction The locations and way that the sensors are mounted is critical to ensure the SolaStat™ - operates correctly and at greatest efficiency; protects the system against damage from extreme temperatures, and ... - Page 11 SolaStat™-1-3 Installation Guide OUNTING THE ENS ORS AND ONNECTING IRING ONTINUED The INLET Sensor should be fitted into a metal immersion ‘pocket’ above the Positioning HWC electric element near the bottom of the tank (usually just above the the INLET element).
- Page 12 SolaStat™-1-3 Installation Guide OUNTING THE ENSORS AND ONNECTING IRING ONTINUED Connect the The SolaStat™ is normally supplied pre-wired, hence wiring inside the Wiring controller should not be necessary. However, if needed, the wiring diagrams below show you how to wire the unit for single and dual elements.
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Page 13: Powering Up
SolaStat™-1-3 Installation Guide OWERING Before you Before you power up, make sure you have Connect the Read the safety instructions, warnings and liability statements, Power Completed installation, and Securely mounted the unit in place before you connect power to the unit. ... - Page 14 SolaStat™-1-3 Installation Guide OWERING ONTINUED What you will When you power up the unit, it will look like the picture below. Check that the PUMP is operating by pressing the PUMP button. This will turn the pump on for as long as you hold it down, unless it is already operating A digital readout of the TANK temperature.
- Page 15 SolaStat™-1-3 Installation Guide OWERING ONTINUED Final Checks The SolaStat is now fully installed and should be working. It is best to observe some solar hot water pump cycles, but this will depend on the sun shining. Check all functions are working correctly before leaving the installation. The SolaStat™...
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Page 16: Plumbing Tips
SolaStat™-1-3 Installation Guide LUMBING IP S Overview This section will help you to ensure the plumbing associated with the SolaStat™ will enable the system to be operated safety and to maximum efficiency. All plumbing installations should be carried out by registered and qualified plumber;... - Page 17 SolaStat™-1-3 Installation Guide LUMBING IP S ONTINUED Pressure Solar hot water systems can run much hotter than standard domestic hot Relief Valves water systems. Hotter water expands more, and needs high quality pressure relief valves to ensure the tank or other components do not burst under pressure.
- Page 18 SolaStat™-1-3 Installation Guide LUMBING IP S ONTINUED Pump To prevent cavitation: Cavitation Make sure the pump is appropriate for the installation On a variable speed pump, make sure the setting is correct – a slower speed that still has enough head pressure is best, as it will minimise the pressure difference at the pump.
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Page 19: About The Pump Settings
SolaStat™-1-3 Installation Guide BOUT THE ETTINGS Introduction The SolaStat™ works by turning the pump when the difference between the temperature at the solar hot water Collector (ROOF) and the temperature in the TANK, is at a certain level. The pump turns on when the difference between these two temperatures is high (i.e. - Page 20 SolaStat™-1-3 Installation Guide BOUT THE ETTINGS ONTINUED Adjusting the If you increase the PUMP ON value, the solar heater will heat up more Setting before the heat is transferred to your hot water tank. Hotter water will enter your tank, but it may take longer to heat the water to that level;...
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Page 21: Programming The Solastat
SolaStat™-1-3 Installation Guide ™ ROGRAMMING THE The SolaStat™ settings have been factory set with the pre-set values specified in the Programming Table at the end of this manual. These settings should not require any changes. Caution: incorrect settings of these values could damage the system or cause it to run inefficiently, voiding the warranty on the product. - Page 22 SolaStat™-1-3 Installation Guide ™, ROGRAMMING THE ONTINUED Enter When you have entered the Installer programming mode, the PUMP light will Adjustable be flashing. The unit is now ready to accept the PUMP OFF Value entry, and Values subsequent values. After each key press, you have one minute to press another key before the unit times out.
- Page 23 SolaStat™-1-3 Installation Guide ™, ROGRAMMING THE ONTINUED Adjust the The PUMP OFF Temperature determines the temperature at which the pump PUMP OFF will be turned off, to allow the water in the cylinder to heat up fully (i.e. make Temperature sure that the warmer water in the cylinder is not diluted with colder water).
- Page 24 SolaStat™-1-3 Installation Guide ™, ROGRAMMING THE ONTINUED Adjust the The PUMP ON temperature determines the temperature of the tank that will PUMP ON activate the pump, to transfer water into the hot water cylinder. Temperature The Standard Value is 12°C (53.6°F), and the range is 2°C – 21°C (35.6°F – 69.8°F) It is always set to a higher level than the PUMP Off temperature.
- Page 25 SolaStat™-1-3 Installation Guide ™, ROGRAMMING THE ONTINUED Set the The TOPOUT temperature is the maximum temperature that you will allow in TOPOUT the cylinder. Very high temperatures in the cylinder can cause damage Temperature (especially for ceramic lined tanks) – both from heat, and from high pressures on plumbing fittings.
- Page 26 SolaStat™-1-3 Installation Guide ™, ROGRAMMING THE ONTINUED Adjust the The FROST value is installed in some (but not all) units. FROST Value It is designed to protect your collector and hot water system from freezing and bursting. When this temperature is reached, the pump will come on just enough to raise the temperature of water by 2 - 3°C [3.5 - 6 °F].
- Page 27 SolaStat™-1-3 Installation Guide ™, ROGRAMMING THE ONTINUED Selecting You can select whether temperatures are given in Celsius or Fahrenheit Celsius or using the next programmable value. Fahrenheit Use the + or – button to toggle the setting between Celsius and Fahrenheit. Press + or –...
- Page 28 SolaStat™-1-3 Installation Guide ™, ROGRAMMING THE ONTINUED Completing All values are now stored. You can check the values simply by continuing to and storing press the NEXT key to scroll repeatedly through all the values set. When you are sure all the values are correct, write these values down in the Programming table within the User Guide.
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Page 29: Sensor Maintenance
SolaStat™-1-3 Installation Guide ENS OR AINTENANCE Lengthening The sensor wire can be lengthened within certain guidelines: Sensor Wire The absolute maximum cable length is 100m (328 feet). Over 20m (66 feet), care must be taken to avoid electrical interference being picked up. - Page 30 Tighten the screws on the cable clamp. 9. Replace the lid, replace the four screws and tighten. 10. Push in four new screw covers available from your distributor or Senztek. Note: there are locating lugs to ensure correct orientation. 11. Reconnect the SolaStat and turn on the power.
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Page 31: Trouble Shooting Guide
SolaStat™-1-3 Installation Guide ROUBLE HOOTING UIDE Symptom Cause Solution No operation, no No power/fault Check mains outlet. display and no lights Check fuses. (No Power Light) POWER light ON but Power brown out (mains power not Switch off power while mains no display or running at full voltage) - Page 32 SolaStat™-1-3 Installation Guide Symptom Cause Solution Display on, pump not Roof sensor reads Hi on display Normal Operation, pump disabled running, but sunny Sensor not mounted properly Check that the ROOF senor is outside. Pump light thermally bonded to the solar ...
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Page 33: Programming Table
SolaStat™-1-3 Installation Guide ROGRAMMING ABLE Settings may be changed by a qualified installer or maintenance technician. Caution: incorrect settings of these values could damage the solar collector and/ or the pump. Enter the programmed values in the corresponding table at the back of the User Guide. Adjustable Function Light... -
Page 34: Specifications
SolaStat™-1-3 Installation Guide P ECIFICATIONS Power Supply. Supply Voltage 85 – 264 Vac (high) OR 22 – 85 Vdc (medium) (must be specified at time of ordering) Max power usage 5VA + external loads. Pump: 10A (240Vac) Resistive for pre-wired option Relay Outputs. - Page 35 ...
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