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SMT 100

SOLAR CONTROLLER

www.Thermomax.com

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Summary of Contents for SMT 100

Page 1: ...SMT 100 SOLAR CONTROLLER www Thermomax com...

Page 2: ...ation 10 3 2 2 Auxiliary operation 10 3 2 3 Frost Protection 11 3 2 4 Storage Tank Limit Temperature 11 3 3 Programming the SMT 100 11 3 3 1 Displaying the Collector temperature 11 3 3 2 Displaying th...

Page 3: ...isplay of tank cylinder temperature Precise pump control for efficient heat collection Auxiliary tank thermostat for heat boosting or re routing excess heat Anti frost over ride for system protection...

Page 4: ...s replaced before turning on the mains supply Ensure that all the connections made are secure If any maintenance work e g installing a new battery is required ensure that the unit is isolated from the...

Page 5: ...table 4 core or 3 core cable according to the diagram shown below As with all PT100 sensor applications a good connection is vital It is therefore recommended that wherever there is any doubt a factor...

Page 6: ...eater current rating than 3A This is illustrated in the diagram below 2 Connect the pump cable to the PUMP terminals of the control unit 3 Connect the neutral N of the auxiliary heater or contactor to...

Page 7: ...terminal of the PUMP relay and the common terminal C of the AUX relay see cascade diagram 2 Connect and see cascade diagram 3 Connect the mains supply to the terminals marked MAINS 4 Connect the eart...

Page 8: ...7 2 3 3 NORMAL AUX HEAT EXTRACTION When TC OFF OFF When TC If TT ON OFF and If TT ON ON Extracting excess heat or diverting excess heat...

Page 9: ...No C0328 2 Example of a solar hot water system gas or oil auxiliary heating Logic as 1 above 3 Example of solar hot water system with two users is the main solar storage tank which has an auxiliary h...

Page 10: ...ST PUMP STATE SELECT INCREASE DECREASE PROTECTION INDICATOR KEY SWITCHES TEMPERATURE ADJUST KEY HIDDEN 3 1 1 DISPLAY SELECT INDICATORS WITH SELECT INDICATOR FLASHING KEYPAD LOCK ENABLED KEYPAD LOCK DI...

Page 11: ...conditions must be satisfied before the pump will run 1 As the sun shines on the collector the collector sensor picks up the rise in temperature while the return sensor remains at the existing tempera...

Page 12: ...lay select indicator will be constantly ON NOT flashing to inform you that the keypad lock is engaged and the SMT 100 unit is in DISPLAY MODE A full stop will also appear on the display to inform the...

Page 13: ...DISPLAY MODE 3 4 ADDITIONAL FEATURES 3 4 1 MAXIMUM AND MINIMUM RECORD TEMPERATURES The maximum and minimum Collector and Tank temperatures may be displayed by pressing and holding the key for 3 secon...

Page 14: ...und and the Display Select Indicator will stop flashing showing that the present settings are fixed and protected and a full stop will appear in the display To unlock the keypad press the key for eigh...

Page 15: ...parameters Keypad will not operate Cause Remedy The keypad Lock is on see Keypad Lock section 3 5 2 Problem One of the sensors is reading F Cause Remedy One of the sensors is either faulty or not prop...

Page 16: ...y 0 5m Return A0740 SX Sensor Extender 10m A6911 SX Sensor Extender 20m A6921 SX Sensor Extender 50m A6951 External relay 16A C0328 CE This product has been tested to the EU EMC 89 336 EEC directive a...

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