Related Manuals for Wijas POW 12
Summary of Contents for Wijas POW 12
- Page 1 INSTRUCTIONS FOR ASSEMBLY AND OPERATION Flow pressure water heaters type POW 12, 18, 21, 24...
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Page 2: Instructions For Assembly
Before using the heater please read the instructions carefully. In the future it will pay off in the form of failure-free operation for a long time. Flow water heaters series POW 12, 18, 21, 24 with two-degree hydraulic switch are designed for heating utility water. Warm water can provided to a couple of water drawing points located in different rooms. - Page 3 8. Connect the heater to water installation (pict. supply connection marked 14, outlet marked 15) 9. Switch on the water feeding the heater and check the watertightness of connections. 10. Connect the heater to the electrical installation as shown on pict. 4. 11.
- Page 4 Pict. 3. Pict. 4. Diagram of electrical installation Start-up In order to remove air from the water installation and the heater prior to turning on electric power, open warm water valve for about 20 seconds. Then turn on the power. After turning on the heating, warm water valve should be opened again waiting till the moment (approx.
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Page 5: Cleaning The Water Filter
Setting the water temperature is done by pressing one of the buttons located under the display marked with “–” or “+” signs (pict. 1) in the range from 30 C to 60 Detecting by the heating system bigger flow than the 2.9 l/min will result in switching it on what is signalled with brighter lighting of the display. - Page 6 Pict. 5. Control valve with a filter 1. Control valve knob (position: flow closed) 2. Valve plug 3. Mesh filter Mulfunctioning of the heater Removing the given below causes of mulfunctioning of the heater is not included in manu- facturer’s warranty. In case when none of the causes occurs, please contact a service point. Display does not light: - not connected belt cable connecting driver plate with the display (pict.
- Page 7 Internal structure of the device Pict. 6. 1. Lower casing 10. Network terminals being parts of the 2. Upper casing pressure switch 3. Display plate with a keyboard. 11. Hole for inserting the supply cable 4. Heating unit 12. Driver plate. 5. Flow sensor. 13.
- Page 8 Pict. 7. Schematic diagram POW 12 - thermal switch - display and keyboard plate - driver plate - power plate - temperature sensor - flow sensor - heating unit 8, 9 - air block and flow sensors 10 - pressure switch...
- Page 9 Pict. 8. Schematic diagram POW 18, 21, 24...
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Page 10: Technical Data
Technical data POW heater Rated power Supply voltage 400 V 3~ Frequency Maximum power consumption 17,3 30,3 34,6 Minimum cross-section 4 x 2,5 4 x 4 4 x 4 4 x 6 of connection cables Maximum cross-section 4 x 10 of connection cables Rated current of the circuit breaker Minimum electrical resistivity Ωcm...
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