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Summary of Contents for Compit B750 T-1
- Page 1 B750 T-1 B750 T-1 Operating and Installation Manual for the u2.00 software version, version 1, 21 February 2017 www.compit.pl COMPIT, ul. Wielkoborska 77, 42-280 Częstochowa, tel.343 62 88 95...
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Page 2: Table Of Contents
Table of Contents Description of the controller.................3 Operation....................4 Information Display.................4 Switching on and off the controller..............5 Setting temperature of the boiler...............5 Setting HUW temperature.................5 SUMMER mode..................6 Advanced Operation...................6 Restoring factory settings.................6 Setting parameters.................6 Service parameters.................8 Anti-legionella..................8 Manual operation...................9 Description of alarm states...............9 Description of operation................10 Burner operation..................10 Working with room thermostat..............10... -
Page 3: Description Of The Controller
"Operating State". The controller operates with room thermostat. Connection of NANO room thermostat additionally allows monitoring the operation of the controller. Room thermostat CH pump B750 T-1 B750 T-1 Boiler sensor semsor pump Fig 1: Operating State = CH and HUW pumps... -
Page 4: Operation
Information Display After switching on the controller displays for a moment its name and version number, for example: COMPIT B750T u1.00 Then it proceeds to display the basic screen that contains a range of information on the operation of the controller. -
Page 5: Switching On And Off The Controller
BUR:1 CH:0 HW:0 Tch:15° Ts:55° The top line displays information about the activated relays: BUR- burner, CH – CH pump. HW – HW pump or CH/HUW valve. Tch:- measured boiler temperature Ts:- set boiler temperature - boiler temperature is lower than the temperature of the pump activation. - decrease from the room thermostat. -
Page 6: Summer Mode
2. Press button, the display shows „?” 3. With the use of the buttons set the desired HUW temperature 4. 4. Press button, „?” disappears. SUMMER mode SUMMER mode is activated in the parameter with the same name. In the SUMMER mode central heating pump is turned off, the controller will only load HUW tank. - Page 7 7. With the use of buttons change the parameter value. 8. Exit the edit mode by pressing button. "?" disappears. buttons are again used to move on the list of parameters. The code does not have to be set prior to the change of the next parameter. However, if no controller button is pressed for 4 minutes, the code is set to 100 and must be reset before the next edition of the parameter values.
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Page 8: Service Parameters
Anti-legionella Anti-legionella function provides weekly heat sterilization of the HUW tank. It requires connection of the NANO module. Boiler hyster. Boiler hysteresis. The burner turns on when the boiler set 2°C temperature will decrease below the value set here. It switches off after reaching the set temperature. -
Page 9: Manual Operation
Manual operation Manual mode lets you easily test the operation of the controller outputs and proper connection. To enter the manual operation, turn off the controller using the power switch. Press buttons and then switch on the power. After a while on the display appears: TEST CH:23°/P:1... -
Page 10: Description Of Operation
Description of operation Burner operation Boiler burner is activated when the boiler temperature drops one degree below the set point minus the boiler hysteresis. The burner is switched off when the boiler set temperature is reached. For example, if the set temperature = 55°C, and hysteresis = 3°C, the burner turns on at boiler temperature 51°C and turns off at temperature 55°C . -
Page 11: Assembling
Assembling General information Connection and installation works should be performed only by a person with appropriate qualifications and permissions in accordance with the applicable regulations and standards. All connection work can take place only when the power supply is disconnected; make sure that the electrical wires are not energized Dimensions of the housing Fig 3: The dimensions of the controller base. -
Page 12: Technical Data
Technical data Power supply: 230V, 50Hz Power consumed by the controller Maximum rated current: Burner rely 16 (8)A CH pump: 4(2)A HUW pump: 4(2)A Fuses: 4A / 250V (characteristics F– fast) Controller protection: IP20 Ambient temperature: 0..55°C Storage temperature: 0..55°C Relative humidity: 5 –... -
Page 13: Sensors
Sensors The controller works with sensors type T2001. T2001 sensors consist of a measuring element placed in a stainless steel casing having a diameter of 6 mm and a wire resistant to temperatures up to 100°C. The sensor cable can be extended with a wire with cross section of not less than 0,5mm², the total cable length should not exceed 30m. -
Page 14: Room Thermostat Connection
NANO one NANO thermostat connection connection NANO should be connected to the appropriate terminals marked „RS485 B750 T-1 U-G-B-A” via a 4-wire cable with a cross section 0,25mm2 according to U G B A the diagram. Connection In order to set operation between...
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