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Related Manuals for TECH ST-21D5
Summary of Contents for TECH ST-21D5
- Page 2 230V 50Hz thermoregulator manufactured TECH, headquartered in Wieprz 1047A, 34-122 Wieprz, is compliant with the Regulation by the Ministry of Economy. (Journal of Laws Dz.U. 155 Item 1089) of July 21, 2007 implementing provisions of the Low Voltage Directive (LVD) 2006/95/EC of January 16, 2007.
- Page 3 ATTENTION! High voltage! Make sure the regulator is disconnected from the mains before working on the power supply (cable connections, device installation, etc.)! All connection works must only be carried out by qualified electricians. Before activating the controller, measure the motor resetting efficiency and inspect wire insulation.
- Page 4 This increases reliability and decreases the costs associated with the operation. ST-21D5 controller is equipped with a system preventing the pump from inactivity during extended standstill periods. The pump is turned on for 1 minute approx.
- Page 5 Operation of the controller Preview of sensor temperatures is changed by pressing PLUS (temp. of water in water heater: T1) and MINUS buttons (temp. of supply water in the boiler: T2). By pressing MENU button the controller will display the user's menu. Press PLUS or MINUS buttons to navigate in the menu.
- Page 6 Errors displayed – Heat source sensor error – Tank sensor error – The message and the current T2 temperature are displayed alternately when the anti-freezing function is turned on (T2 sensor signal). – The message and the current boiler temperature are displayed alternately when the anti-freezing function is turned on (boiler sensor signal).
- Page 7 Device cabling connection diagram PE - PROTECTIVE EARTH (YELLOW-GREEN) N - NEUTRAL (BLUE) L - LIVE (BROWN) View of the controller power output Example of installation (simplified diagram)
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