Start and stop and indication during operation KST Plus, KT Plus, KT small Plus..... Regulation of boilers KST Plus, KT Plus, KT small Plus............Control panel KZT Plus......................Start and stop and indication during operation KZT Plus............Regulation of boiler KZT Plus....................Equithermic regulation of boilers.....................
Read this user manual properly, whereas it contents important information concerning safety at installation, usage and maintenance of the appliance. The ATTACK Plus boilers are intended for central heating and D.H.W. warming (with built-in 25-litres stainless tank, instantaneous heating or external additional tank) with mixing and condensation at high output level at operation and very low emissions.
Indication during operation of KT Plus, KT small Plus, KST Plus Heating Requirement for heating (generated from room thermostat or Open therm regulator) is indicated by flickering of LED diodes at radiator symbol (see page 13 - pic.1). Display (see page 11 - pic.1) projects actual temperature at the inlet into heating appliance and during waiting time for heating, the „d2“...
Regulation of the boilers KT Plus, KT small Plus, KST Plus Switching to Summer/Winter Hold the button for 2 seconds (see 6 - Pic.1). The Summer sign appears on display (see 10 - Pic.1). Boiler will make only the DHW The antifreeze system remains active.
Control panel of the KZT Plus boilers Pic.2 Control panel Description 1 = Button to decrease adjusted DHW 2 = Button to increase adjusted DHW 3 = Button to decrease adjusted temperature of water in the central heating system 4 = Button to increase adjusted temperature of water in the central heating system...
KZT Plus Indication during heating operation of the Requirement for heating (activated by room thermostat or remote control) is indicated by flickering of the warm air over space heater sign (see 24 and 25 - Pic.2). Display (See 23 - Pic.2) shows actual temperature at the heating device inlet and the „d2“ text during the period of waiting for heating.
Parallel shift of the curves of the condensing boilers Plus Repeated pressing of the button (See 6 - Pic.1 KST, KT ) and (See 10- Pic.2 KZT ) enables to exit mode of the parallel curve regulation. If the environment temperature is lower than required temperature, it recommended to set more abrupt curve and vice-versa.
Compensation curve and curve shifting By holding the ,,reset" button (See6 - Pic.1 KST, KT) or the ,,mode" button(See 10 - Pic.2 KZT ) for 5 seconds opens the menu of the „Controlled temperature“, the flickering „CU“ is dipslayed. Adjust the required curve by the DHW buttons (marked as 1 and 2, pics.
Regulation of the hydraulic pressure of the supply device Pressure indicated on the water-gauge, when the heating system is filled being cold, has to be 1,0 bar. If pressure of device decreases to minumum values, boiler display shows error F 37. Increase pressure in device to value higher than 1,0 bar by using the filling tap (See 1).
Hydraulical connections The ATTACK boilers are intended for heating systems with forced heating water circulation. Intensity of the water flow can be set by switch on the pump. Before is the heating system filled with water, it is necessary to clean the system properly. It is necessary to flush heating bodies and distribution pipes several times.To flush and clean the system properly it is...
Antifrost system, frost-free liquids, additional mixtures or inhibitors Boiler is equipped with antifrost system that activates boiler for heating, when the temperature of water at the inlet into the heating system decreases under 6°C. Mechanism is not active, if appliance is disconnected from electricity or gas.
Wrong placing of external probe Access to electrical terminal of the KZT Plus boiler To access to boiler terminal, it is necessary to remove rear cover and then to make necessary electrical connections, as it is given on scheme on the picture.
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Flue gas exhausts This appliance is a C type, with hermetic chamber and forced exhaust, air inlet and flue gas outlet have to be connected to one of the systems of outlet / suction mentioned further. Appliance is homologized for operation with all chimneys Cxy, that are listed on label with technical data (some configurations are given only as example in this chapter).
Maximum length of coaxial outlets Coaxial 60/100 Coaxial 80/125 Max. permitted length Factor of elbow reduction 90° 0,5m 45° 0,5m 0,25m Factor of elbow reduction Before installing it is necessary to check, if the maximum permitted length has not been exceeded. Every coaxial arc means length reduction, as it is given in the table.
Connection to mutual chimneys Examples of connection to chimneys If you decide to connect boilers ATTACK Plus to mutual or separate chimney with natural exhaust, mutual or separate chimney has to be projected exclusively by specialized worker in conformity with valid norms for appliances with hermetic chamber, equipped with fan.
All operations for regulation and adjustment according to type of gas must be done by qualified and trained workers (professional technicians, that respect valid technical norms) - the authorized servicemen. ATTACK takes no responsibility for damages on properties, nor injuries of persons that are caused by incorrect manipulation with appliance by unqualified or unauthorized persons.
Analysis of combustion Combustion is analysed in air (2) and flue gas (1) exemption areas as it is given on the picture. For measuring it is necessary to: 1.Open exemption areas of air and flue gas 2.Put probes in 3.Press buttons "+" and "-" by heating sign for 5 seconds to activate the TEST mode 4.Wait 10 minutes until boiler gets into stable operation 5.Measure Value of CO2 has to be in interval of 8,7 - 9% by natural gas (G20).
Activation of the TEST mode Press heating buttons together for 5 seconds to activate the TEST mode (see 3 and 4 - pics.1 and 2). Boiler is started by maximum output of the set heating and actual value, as it is given in the text below. Signs of heating and DHW flicker on display and temperature of heating.
Cover, control panel and external parts of boiler can be cleaned by soft wet cloth, eventually soak in water with cleaner. Do not use abrasive cleaners nor dissolvents. How to open cover of the KZT Plus boiler To open cover of boiler: 1.
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Table of error messages Diagnostics Boiler is equipped with modern system for autodiagnostics. In case of boiler error, display flickers together with the sign of error and number indicating error code. There are errors, that cause permanent blockage (marked by „A“ letter): to get boiler back to normal operation, press RESET button for 1 second or use RESET on remote time controller (additional), if it is installed;...
4. Characteristics and technical data Dimensions and connections of the KZT Plus boiler Dimensions and connections 1 = Inlet into heating system (c.h. flow connection) 2 = Outlet of supply water 3 = Gas inlet 4 = Inlet of supply water 5 = Return flow from heating system (c.h.return flow)
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Dimensions and connections of the KST Plus boiler Dimensions and connections 1 = Inlet into heating system (c.h. flow connection) 2 = Supply water outlet 3 = Gas inlet 4 = Supply water inlet 5 = Return flow from heating system (c.h.return flow) 6 = Safety valve release 2 3 4 5 6 82,5 76 54 51 80,5 56...
Main parts of the KZT Plus boiler 5 Hermetic chamber 130 Pump of supply water 7 Gas inlet 145 Manometer 8 Supply water outlet 161 Heat exchanger 9 Supply water inlet 186 Sensor of heating water return connection 10 Inlet into heating system (c.h.flow connection) 188 Ignition electrode 11 Return flow from heating system (c.h.return connection)
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Main parts of the KST Plus boiler 5 Hermetic chamber 74 Tap to fill distribution device 7 Gas inlet 82 Ionisation electrode 8 Supply water outlet 95 Three-way valve 9 Supply water inlet 114 Sensor of water sensor 10 Inlet into heating system (c.h. flow connection) 136 Flow sensor 11 Return flow from heating system (c.h.
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Main parts of KT Plus, KT small Plus boilers 5 Hermetic chamber 82 Ionisation electrode 7 Gas inlet 95 Three-way valve 10 Inlet into heating system (c.h.flow connection) 114 Sensor of water pressure 11 Return flow from heating system (c.h.return 161 Heat exchanger connection) 186 Sensor of return connection of heating water...
Hydraulic circuit of the KZT Plus boiler 154 Pipe for condensed water outlet 7 Gas inlet 161 Heat exchanger 8 Outlet of domestic hot water 186 Sensor of heating water return connection 9 Inlet of domestic hot water 191 Sensor of flue gas temperature 10 Inlet into heating system (c.h.flow connection)
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Hydraulic circuit of the KST Plus boiler 7 Gas inlet 95 Three-way valve 8 Domestic hot water outlet 114 Water pressure sensor 9 Domestic hot water inlet 136 Sensor of supply water flow 10 Inlet into heating system (c.h.flow connection) 154 Outlet pipe of condensed water 11 Return flow from heating system (c.h.
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Hydraulic circuit of the KT Plus, KT small Plus boilers 114 Water pressure sensor 7 Gas inlet 154 Condensed water outlet 10 Inlet into heating system (c.h.flow connection) 161 Heat exchanger 11 Return flow from heating system (c.h. return 186 Sensor of heating water return connection connection) 193 Syphon 14 Safety valve...
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Technical data KZT Plus, KST Plus, KT Plus, KT small Plus Data Unit Value KZT Plus KST Plus KT Plus KTsmall Plus Max. thermal power of central heating 25,2 25,2 25,2 Min. thermal power of central heating Max. thermal output of central heating (80/60°C)
Electrical scheme of the KZT Plus boiler 16 Ventilator 32 Circuit pump of heating 42 Sensor of supply water temperature 44 Gas valve 72 Room thermostat 82 Ionisation electrode 95 Three-way valve 130 Circuit pump of water tank 138 External sensor...
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191 Flue gas temperature sensor 278 Double sensor (Heating + Safety) Diagram of pressure losses by filling and height differences of pumps of boilers KZT Plus, KST Plus, KT Plus, KTsmall Plus A Losses of boiler infill 1-2-3 Speed of circuit pump...
Accessories of flue gas exhaust Accessories of coaxial flue gas exhaust with diameter of Æ 60/100mm Code Name PR37 extension 1m D60/100 paint Pr38 extension 0,5m D60/100 paint PR39 chimney 60/100 paint PR40 elbow 90° D60/100 paint PR41 elbow 45° D60/100 paint PR42 elbow with flange + service opening D60/100 PR43...
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RECORD ON PUTTING THE BOILER TO OPERATION Data on the customer (llegible) Production number......Name and surname: Date of putting to operation............Service organization: Street: ............Post code, town:. .Stamp, signature ....................Tel. No......Obligatory service examination after the 1st year of operation Date : ........
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E-mail: export@attack.sk Slovakia Web: www.attack.sk Výrobca ATTACK, s.r.o. si vyhradzuje právo technických zmien výrobkov bez pred- chádzajúceho upozornenia. • ATTACK, s.r.o. producer reserves the right to change technical parameters and dimensions of boilers without previous warning. • Der Hersteller ATTACK, s.r.o. behält sich das Recht der technischen Veräderungen an Produkten ohne eine vorige Warnung.