Electric boiler 6 and 9 kW Thermotech underfloor heating system ADVAnTAGEs fACTs
Transcription
Electric boiler 6 and 9 kW Thermotech underfloor heating system ADVAnTAGEs fACTs
Thermotech underfloor heating system Electric boiler 6 and 9 kW ADVANTAGES • Completely mounted on delivery • Two power modes • A small and compact design FActs product id 25406 25409 heating Element 6 kW 3 + 3 kW 9kW 4,5 + 4,5 kW Electricity 9,12 A 13,67 A fuse 10A 16A rated current automatic earth capacity at 50W/m2 Max working pressure 400 V 3-phase leak switch 120 m2 2,5 bar 40/0,03 A fluid volume weight (empty) 6 L 34 kg Circulation pump Grundfos UPS 15/60 connection Max water temp. Max environment 3/4” external thread +110°C temp. +40°C Expansion vessel Safety valve 8 L 3 bar insulation 19 mm Armaflex Area of use • Two mode thermostat Thermotech 6 and 9 kW electric boiler is small and compact and delivered fully assembled for a quick and easy installation indoors. • Safety thermostat Product specification The boiler has two power modes. Each mode is connected and disconnected by a signal from a built-in thermostat. The boiler is equipped with an automatic earth leak switch for highest safety of the installation. Insulated with 19 mm Armaflex. Each boiler is equipped with: • Circulation pump Air vent Automatic • Manometer and thermometer sizing Recommended length of loops at different pipe dimensions (required effect 50/m²): Pipe dimension 17 x 2 mm 20 x 2 mm Lenght of loops (m) Capacity (m2) Max 85 m at ∆T = 5ºC Max 120 m2 Max 110 m at ∆T = 5ºC Max 120 m2 (at 50 W/m2) (at 50 W/m2) • Expansion vessel • Safety valve • Automatic earth leak switch Phone: +46 (0)620 68 33 30, www.thermotech.eu Thermotech Scandinavia AB fulfils the ISO standards for quality- and environment management. IG702-1402 Thermotech Company Group Certifierad ISO 9001 ISO 14001 1 (4) Thermotech underfloor heating system Installation guide 16 17 Electric boiler 6 and 9kW 13 11 3 10 4 5 9 6 8 18 12 7 15 1 14 2 Figure 1. The equipment of the electric boiler Construction Thermotech electric boiler is insulated with 19 mm Armaflex carpet. The boiler’s necessary equipment is built-in and it is ready to work. Components (see figure 1): 1. Connection flow 2. Connection return 3. Enclosure 4. Water container 5. Insulation 6. Electricity cartridge 7. Steering panel 8. Connection for electricity 9. Contactors - relays 10. Expansion vessel 11. Circulation pump 12. Safety valve 13. Automatic air vent 14. Refill- and tapping vent 15. Manual air vent (refilling) 16. Sensor for air in the system 17. Complete valve tube 18. Earth leak switch Installation guide for electricians The incoming power feed should be taken from below, through the intended hole, for good strain relief (see figure 3). Sizing of the connection cable and the electric installation must be performed by an authorised electrician. Installing the central room thermostat (figure 4) The electric boiler can be equipped with a room thermostat which is placed a room where you want to control the temperature for the entire building. The thermostat is controlling the boiler’s operation by breaking the current to the circulation pump, when desired room temperature is reached. Thermostat, product ID’s: 20210-3 or 67260 are suitable for this control. Figure 4. Connection of room thermostat Installing the electric boiler The electric boiler has a rail of metal on the back for a simple installation. Mount the enclosed consol at the wall with a suitable screw. For the smallest free distance around the boiler (see figure 2). Figure 2. Free distance around the electric boiler 2 (4) Figure 3. Incoming power feed and electric connection A thermostat is installed instead of a jumper between the clamps 5 and 4. Circuit diagram Electric boiler 20210-3 67260 5 2 1 4 1 4 N 2 Thermotech underfloor heating system Installation guide 7 8 5 4 Electric boiler 6 and 9kW Low voltage indicator (9) glows red when the voltage to the boiler drops below 180 V and then turns off the heater to protect the electronic components. When the voltage comes back above 180 V again, the heater starts and the indicator light goes off. 9 6 Overheating protection (4) ensures that the water never boils by triggering a fuse for the heater. The fuse must be reset manually. 2 1 3 Figure 5. Electric boiler's control panel. Dimensions Control panel The electric boiler's control panel contains the following: E 50 D 1. Thermometer and manometer for temperature and pressure in the boiler. 2. Thermostat B 3. ON/OFF buttons for heating stages 2 and 3. 4. Protection against overheating. Shuts off at about 100ºC. A 5. Indicator of air in the heater. 15 6. ON/OFF button for heating stage 1. 7. Fuse 2.5 A. C D 8. Indicator that the electric boiler is operating. 9. Indicator for low voltage, 180 V. By setting switch (6) to the ON position, the electric boiler and heating stage 1 are activated. Switch (3) is used to allow the start of heating stages 2 and 3, but also to switch off the same stages during operation. Using the thermostat knob (2) on the electric boiler's control panel you can set a specific temperature which the electric boiler will endeavour to maintain all the time. The temperature can be set between 20ºC and 90ºC. The recommended setting is 60ºC which is when the mark on the knob is at 12 o'clock. Figure 6. Dimensions. Dimensions, mm A B C D E 330 930 290 100 65 Air indicator (5) indicates that air is present in the boiler and that the immersion heater has stopped in order to protect it from overheating. As soon as the system is bled properly, the immersion heater lamp will go out and it will be energized again. We reserve the right to change products without prior notice. Please refer to www.thermotech.eu for the latest versions of products and installation instructions. Any prices shown exclude VAT unless otherwise stated. No liability is accepted for any typographical errors. 3(4) www.thermotech.eu