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Instruction manual

for installation and operation of

of hot water electric boiler of series :

ELTHERM, ELTHERM M, ELTHERM MM

www.greenecotherm.eu

Содержание ELTHERM M Series

Страница 1: ...Instruction manual for installation and operation of of hot water electric boiler of series ELTHERM ELTHERM M ELTHERM MM www greenecotherm eu ...

Страница 2: ...CESSARY TO READ THOROUGHLY AND CAREFULLY THIS INSTRUCTION MANUAL BEFORE PROCEEDING WITH ANY ACTIONS WITH THE BURNER INSTALLING CONNECTING OPERATING ETC IN CASE THAT REQUIREMENTS DEPICTED IN THIS MANUAL ARE NOT SATISFIED FAILURE OF THE UNIT COULD BE EXPECTED OR EVEN FATAL CONSEQUENCES FOR WHICH THE PRODUCTION COMPANY DOES NOT TAKE RESPONSIBILITY Producer ZMM Haskovo Plc Address Bulgaria Haskovo 630...

Страница 3: ... Installation of the hot water electric boiler of series ELTHERM considering it s easy maintenance and servicing 17 4 1 2 Boiler s positioning according to the requirements for attachment to the electric power supply circuit 17 4 2 Procedure for installation of the hot water electric boiler of series ELTHERM of the heating system 18 4 2 1 Connecting to the heating system 18 4 2 2 Recommended princ...

Страница 4: ...ecreasing the thermal capacity of the boiler 28 5 4 2 Increasing the thermal capacity of the boiler 28 5 4 3 Controlling thermal capacity of the heating system s elements 28 5 5 Stopping the operation of the system 28 5 6 Turning OFF the boiler 28 Emergency stop of the system 28 5 7 Showing and teaching the end user about the maintenance and adjustment procedures 29 5 8 Safety and unexpected risks...

Страница 5: ...nvironment friendly high efficiency and compact units allowing installation in narrow spaces The electric hot water boilers can be used in every system of central or local heating in direct hybrid or accumulating systems It can be integrated in existing heating systems parallel to any type of hot water boiler i e gas oil or solid fuel hot water boilers For the security of the operation it is recom...

Страница 6: ...gy into heat energy with practically no loses no local pollutant emissions the boiler is installed in order to apply the so called fuel switch process for appliances utilizing other energy sources diesel natural gas LPG coal or could be installed as back up heat source the boiler s design allows easy installation The heating system and the boiler equipment however need minor redesign and reconstru...

Страница 7: ...thermal capacity range 4 10kW are given in Table 2 2 2 3 Thermal and technical data of hot water electric boiler of series ELTHERM of thermal capacity range 12 18kW are given in Table 2 3 Model of the boiler Type of control Closed expansion vessel ELTHERM Contactor External not supplied ELTHERM M Circuit board External not supplied ELTHERM MM Circuit board Built in Table 2 1 General information fo...

Страница 8: ...water jacket capacity dm 9 5 W width 515 D depth 245 Overall dimension of the system WxDxH H height mm 630 Operating overpressure of the circulating water MPa 0 25 in one boiler operation 0 18 in parallel operation with solid fuel boiler Heating system expansion vessel type Opened or closed upto 0 25MPa Factory tested overpressure MPa 0 4 Recommended circulating water temperature in the boiler ºC ...

Страница 9: ... 45 Boiler s water jacket capacity dm 7 8 10 8 dm3 W width 676 D depth 179 Overall dimension of the system WxDxH H height mm 938 Operating overpressure of the circulating water MPa 0 25 in one boiler operation 0 18 in parallel operation with solid fuel boiler Heating system expansion vessel type Opened or closed upto 0 25MPa Factory tested overpressure MPa 0 4 Recommended circulating water tempera...

Страница 10: ...nce and operation control module which allows manual adjustment of the thermal capacity and operating mode of the boiler circulating pump which makes forced movement of the heat transport media the circulating water The pump has serially connected mechanical filter in order to prevent clogging and blockage of the pump s rotor closed expansion vessel only for model ELTHERM MM Figure 3 1 View of the...

Страница 11: ...p 11 37 Figure 3 2 View of the of the electric hot water boiler of series ELTHERM with expansion vessel ...

Страница 12: ...r should be installed onsite at the installation process of the boiler Please refer the filter s producer requirements for proper installation maintenance and service procedures Closed expansion vessel Boiler s structural frame Control panel of the boiler Electric heaters Electric boiler heat exchanger Circulating pump Pressure safety valve Inflow pipe G1 Outflow pipe G1 Automatic air release vent...

Страница 13: ...ctric hot water boiler of series ELTHERM with expansion vessel with overall dimensions Figure 3 5 Side view left figure and top view right figure of the of the electric hot water boiler of series ELTHERM with expansion vessel with overall dimensions ...

Страница 14: ...se of the operation power supply circuit is on the board In the relay contactor system these operational power supply circuits fuse is installed beside the control panel The flow of the circulating water in the heat exchanger of the boiler as well as in the heating system is provided by a thee step circulating pump The attached operating thermostat controls the operation mode of the boiler until t...

Страница 15: ...ies Connection of the boiler to the power supply and the external control modules should be performed by authorized technician only The power supply cable cross section should follow the requirements specified in the technical data of the boiler Connect the control module of the boiler with the room thermostat or weekly programmable thermostat if available Before starting the boiler the heating sy...

Страница 16: ...cking of circulating water level in the expansion vessel should be performed by the end user The water content in the circulating system should be kept constant If additional water is required then precautions should be taken not to add air in the heating system as well The water utilized for filling purposes of the heating system should be decontaminated and air free and is not dedicated for any ...

Страница 17: ...e and servicing procedures for model ELTHERM MM the minimal distance on the left is 800 mm in order to allow access for maintenance and easy replacement of the electric heaters if the boiler o The minimal distance between the top side of the boiler and a wall ceiling should be 100 mm in order to ensure easy access for the maintenance procedures of the boiler s modules o The minimal distance betwee...

Страница 18: ...he boiler has been positioned and attached to the heating system a hydraulic test should be made fill the heating system with circulating water following the requirements Check and repair the connections for leakages prior any following procedures De air the boiler and any other modules of the heating system in order to allow nominal circulation of the fluid and safe operation of the heating unit ...

Страница 19: ...2 3 5 Figure 4 2 Recommended principal hydraulic scheme for connecting the hot water electric boiler of series ELTHERM to a local gravity driven heating system Description of the modules 1 electric hot water boiler 2 filter 3 stop valve 4 air purge valve 5 solid fuel boiler 6 heat accumulating tanks 7 mixing valve 8 circulating pump 9 return flow thermostat ...

Страница 20: ...c hot water boiler of series ELTHERM should be connected to the electrical power supply only after successful connection to the heating system has been performed no circulating water leakages has been found and the heating system is totally free of air make sure to open all the control valves and other control modules in order to allow the air to get out of the heating system Check the condition o...

Страница 21: ...perating thermostat of the boiler to high temperature in order to allow operation of the boiler Check the connection and the operation of the room thermostat if it s connected If weekly programmable thermostat is connected make the appropriate adjustments in order to allow testing of the heating system ...

Страница 22: ...ll as the proper operation of the heating system 5 2 Starting up the hot water electric boiler of series ELTHERM Basic requirements Any maintenance procedures should be performed in accordance with the described in this manual Any intervention in the working process of the system which could lead to unit s failure and or dangerous and health threatening situations are strongly prohibited The syste...

Страница 23: ...ng system Emergency overheating thermostat protects the hot water boiler of series ELTHERM from exceeding emergency temperature levels and overheating This thermostat is factory preset to switch off the power supply of the electric boiler at water temperature in the boiler above 95o C factory set Thermo manometer indicates the operating temperature of the circulating water in the heat exchanger ja...

Страница 24: ...stat is switched on if connected any other control modules are switched on and functioning properly The electric hot water boilers of series ELTHERM are operating according to their thermal capacity given in Table 2 2 and 2 3 according to the nominal thermal capacity The first stage of the boiler is activated automatically The second and the third stages according to the model of the boiler are co...

Страница 25: ...electric boiler is controlled by its the operating thermostat the room thermostat or the weekly programmable thermostat The boiler heats up the circulating water until the set point of the temperature defined by the boiler s operating thermostat is reached then the heaters are switched off but the circulating pump continues to run In case of emergency overheating the boiler s operation is interrup...

Страница 26: ...er electric boiler of series ELTHERM in mixed heating systems As the name of the system hints this type of heating systems operates with heat accumulator tank in parallel as the described above The boiler operates along with the heat accumulating tank as source thus allowing pick heat consumption The electric boiler is controlled by the operating thermostat the heating system operates according to...

Страница 27: ...peration mode At nominal operation of the system the commissioning of the boiler s operation should be performed following the governing local requirements NOTES The temperature of the return flow of the circulating water of a heating system is recommended to be above 60o C It is recommended to operate the boiler s thermal capacity in the range described in Table 2 2 and Table 2 3 In case that low...

Страница 28: ...either the set point of the circulating water temperature or the room thermostat set point 5 4 3 Controlling thermal capacity of the heating system s elements In case the heating system has hot water radiators equipped with thermostatic valves then the thermal comfort in the heated room should be controlled by appropriate adjustment of these valves in order to achieve high efficiency and economic ...

Страница 29: ...mostat switches back on a click sound is heard in this process screw the cap back After the boiler as well as the heating system are checked and the cause for overheating is determined and repaired start the boiler in case that the alarm mode is neither described in this document then it is strongly recommenced to contact the system s servicing company in order to resolve the issue and start the n...

Страница 30: ...a result of the operating process of the boiler it is possible to arise risks as follows Electrical shock risks at indirect contact The boiler is connected to the power circuit and its operating module is separated in specialized electric control box equipped with required protective and short circuits preventive devices It is obligatory to perform boiler ground connection by authorized personal t...

Страница 31: ...m thermostat as well as boiler s operating thermostat 4 Boiler s emergency overheating Absence of heat consumption or incorrect adjustment of the parameters of the boiler or poor operation of the heating installation It is necessary to check the correct operation process of the heating installation and eventually appropriate adjustment of the operating parameters of the electric boiler this should...

Страница 32: ...nance should be performed Table 5 1 Description of operation faults of the hot water electric boiler of series ELTHERM causes and methods for repairing 5 10 Hot water electric boiler of series ELTHERM warranty form completion The applied WARRANTY FORM should be completed by filling the required information in the appropriate fields The assigned field for signatures and stamp should be completed as...

Страница 33: ...1 1a L N S1 S2 SA1 SA2 SA3 SA4 C 2 1 t t t P C NO NC 3 2 1 C 2 1 P 101112 1 2 3 4 5 6 7 8 9 K1 K2 K3 Q1 1 3 5 2 4 6 Захранване N K1 K2 K3 K2 K3 St St A1 A2 A1 A1 A2 A2 HL2 HL1 HL3 FU 1 1X Q1 main power supply switch S1 S2 switches I and II stage SA1 low pressure limit switch HL1 signal light POWER SA2 room thermostat HL2 signal light ALARM SA3 emergency thermostat HL3 signal light START SA4 operat...

Страница 34: ...emergency thermostat HL3 signal light START SA4 operating thermostat P circulating pump Figure 6 2 Principal electrical scheme of the control board of the hot water electric boiler of series ELTHERM M and ELTHERM MM NOTE at any service and maintenance operations on the boilers components it is required to power off the boiler and to disconnect the mains power supply ...

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