Ecotermal 6 MR Manuale utente
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MANUAL
FOR ASSEMBLY AND OPERATION OF ELECTRIC FLOW-THROUGH BOILER WITH
RELAY CONTROL
PASSPORT
OF ELECTRIC BOILER WITH RELAY CONTROL ECOTERMAL
MR 6, 8, 10, 12, 15, 22, 30 kW MX 37, 45, 52, 60 KW
MODULE 6, 8, 10, 12, 15, 22, 30, 37, 45, 52, 60 KW
Bourgas 8000, 47 Slivnitsa Str
tel: 056/814 681; 056/814 215
www.ecotermal-bg.com
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Dear clients! „ECOTERMAL” Ltd. is thanking you for the good choice you made!
Please get familiar in detail with the present manual in order to use the full scale of the
advantages of the electric boilers with relay control that will secure for you comfortable,
ecologic and economic heating through their quality, reliable and modern automation.
CONTENTS: Page
1. Recommendations 3
2. Introduction 3
3. Technical description of the boiler 4
4. System control 4
5. Operation manual 4
6. Connection to the electric network 5
7. Commissioning 5
8. Conditions of commissioning and undertaking guarantee maintenance 5
9. Diagrams and tables 6-15
9.1 Method of connecting of story (local) heating, Fig. 1 6
9.2 Method of connecting the system to a solid fuel boiler, Fig. 2 6
9.3 Structure of the electric boiler from 6 to 30 kW, Fig. 3 7
9.4 Structure of the electric boiler from 37 to 60 kW, Fig. 4 8
9.5 Structure of the electric module from 6 to 30 kW, Fig. 5 9
9.6 Structure of the electric module from 37 to 60 kW, Fig. 6 10
9.7 Control panel from 6 to 60 kW, Fig. 7 11
9.8 System control from 6 to 60 kW, Fig. 8 12
9.9 Technological distances for boiler/module from 6 to 30 kW, Fig. 9 13
9.10 Technological distances for boiler/module from 37 to 60 kW, Fig. 10 13
9.11 Dimensions of the electric boilers, Tab. 1 14
9.12 Technical characteristics, Tab. 2 14
9.13 Technical data, Tab. 3 14
9.14 Cross-section of power supply cables and automatic breakers, Tab. 4 14
9.15 Weight of the boilers’ models, Tab. 5 15
9.16 Equipment of the boilers’ models, Tab. 6 15
10. Warranty card 16
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1. RECOMMENDATIONS
- This Electrical Boiler is not intended for use by persons (including children) with reduced
physical, sensory or mental capabilities, or lack of experience and knowledge, unless they
have been given supervision or instruction concerning use of the Electrical Boiler by a person
responsible for their safety.
- Children should be supervised to ensure that they do not play with the Electrical boiler.
- It is necessary one to be familiar and to observe the safety operation and assembly manual.
-
Electrical boiler has IP 20 protection degree, which applies after an installation at place
where it will used.
- After unpacking the boiler, check delivery integrity and equipment..
- Check whether the boiler type corresponds to your needs.
- It is recommendable for each assembly a project to be drafted.
- The assembly may be carried out only by and expert authorized for such activity.
- Boiler assembly should meet the effective prescriptions, norms and to the present manual.
- Connection of the boiler to the power network (if necessary) should be harmonized with the
local power supplier, which should be done by the consumer prior to the purchase of the
boiler.
- Adjustment and commissioning should be carried out only by a service technician approved
by the producer.
- Upon incorrect assembly, damages may occur and the producer shall not be liable thereof.
- In case of failure contact the service organization. Unprofessional intervention may damage
the boiler.
- For correct functioning, safety and long-term operation secure prophylactics at least once a
year.
- In case of damages incurred by unprofessional assembly, as well as upon noncompliance
with the regulations and the operation manual, the producer is not liable and shall not provide
guarantee service.
- The heating installation should have air bleeds at all necessary places.
- It is not allowed to make any changes whatsoever on the electrical diagram of the product,
except for connection of the indoor temperature controller, the equithermal controller or at
telephone control.
- Hydraulic and warm tests should be carried out of each heating installation upon
commissioning.
- The electric boiler may operate at open system up to temperature of 95
o
C max and at closed
system up to 110
o
C at pressure of 1.8 bar in a self-contained heating circuit.
- The assembly organization is obliged to get the client familiar with the operational rules of
the heating system as a whole.
2. INTRODUCTION
The flow-through electric boiler ECOTERMAL is a modern ecological source of heat
designated for story and central heating of small and average size houses and production
facilities. The main advantages of heating with electric power are mostly cost effectiveness,
high efficiency, environmental friendliness and compactness. Electric boiler can be used in
every system of central or story (local) heating in a direct, accumulating or hybrid system. It
can be integrated also in existing heating systems, in parallel with solid fuel boiler (exemplary
diagrams are shown on Fig. 1 and 2, page 6). It is recommended for safer operation the
electric boilers to be mounted in systems operating with a pump securing enforced circulation
of the heat medium.
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3. TECHNICAL DESCRIPTION OF THE BOILER
Structure of the electric boiler/ module, see Fig. 3 page 7, Fig. 4 page 8, Fig. 5 page 9, Fig.
6 page 10.
Equipment of the boilers’ models is shown in Tab. 6 page 15.
Technical data and technical characteristics of the electric boiler/module, see Tab. 1, 2, 3
and Tab. 4 page 14, and Tab 5 page 15.
4. PRINCIPLE OF OPERATION
The control system performs its functions by effecting on two of the components of the water
heating: the heaters and the circulation pump
There are two main operating modes:
- Boiler Temperature Control Operating Mode
Each electrical boiler/module contains temperature controller. The temperature set-point value
can be adjusted between 30°C and 90°C. Upon reach of the setpoint, the temperature
controller switches off the heaters. When the temperature of the boiler’s water goes below the
set point, the heaters are switched back on. The temperature overheat protection is provided
by a blocking /emergency/ thermostat. If there is a temperature rise up to 105° C, caused by
any reason, the blocking thermostat turns off the heaters and ALARM message is displayed.
The thermostat must be switched back to normal operating mode only by authorized service
engineer, who has to provide detection and removal of the fault causing the thermostat switch
off.
- Room Temperature Control Operating Mode
The room temperature controller is installed in the premise where you need the temperature to
be precisely controlled. The control unit is installed in the boiler. When the set room
temperature is above the current temperature of the premise, the heater and the circulating
pump are switched on. Upon reach of the set room temperature, the controller switches off the
heater and the pump. The power of the boiler is calculated such that at the lowest environment
temperature for the region it could provide room temperature of 25° C.
Number of comutation:
6 to 60 kW - two-levels
This principle of control does not allow major amplitude in water temperature in the boiler
body in the established mode of work.
Models from 6 to 60 kW can bind to the ON / OFF room thermo regulator (see Fig.8 page12).
5. OPERATION MANUAL
- The customer has to provide water supply and electricity to the installation.
- The customer monitors for leaks and controls the operating pressure in the system.
- Adjust the boiler or room temperature depending on the operating principle of the
installation and personal preferences.
- Upon departure from the parameters calls to authorized service.
- The service is performed by specialists familiar with the structure, management and
operation of the device.
- When the electric power stops and restores again, the electric boiler automatically starts
again.
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6. CONNECTING TO THE ELECTRIC NETWORK
- Connecting the electric switchboard to the power supply network and the boiler electric
installation assembly should be carried out only by an expert with the necessary qualification.
The power supply is connected through not severable joint according to the connection
diagram. The cross-section of the power supply cable should be selected in accordance with
the boiler power (see table 4 page 14).
7. COMMISSIONING
Boiler’s startup is possible after performed control on the good working order of:
- the connections to the heating system,
- checking of the system pressure,
- checking of the electrical connections,
- checking whether the valves and taps of the heating system are opened,
- switch on the automatic fuse of the electric boiler,
- preset the desired temperature of the boiler and the room thermo regulator.
Servicing of the room thermo regulator is done according to the instructions thereto.
The heating systems may be filled in only by water or mixture of water and antifreeze.
8. CONDITIONS OF COMMISSIONING AND UNDERTAKING GUARANTEE
MAINTENANCE – GENERAL TERMS:
The electrical boiler/module is mounted with the help of consoles only on a wall that can bear
its weight. The boiler location should be selected in a manner to secure access – technological
tolerance from its all four sides is shown on Fig. 9 and 10 at page 13.
1. The boiler/module should be mounted at a place suitable for servicing (free access
thereto) and possibility of opening the front lid.
2. The boiler/module should be mounted suspended on the wall at minimum height of 1
m of the floor.
3. Water filter should be mounted at the cold water intake before the pump by observing
the direction marked on the filter itself (boiler fixture), in accordance with the attached
manufacturer’s instructions.
4. The boiler/module should not be contaminated with building materials.
5. Fitting connections should be mounted on the boiler/module intake and the outlet.
6. Hydraulic test should be carried out at an index of 1.25 above the operating pressure.
7. Upon assembly, it is necessary the adjustments of the boiler and the blocking
thermostats to be checked up. The actual control is done during the warm test.
8. The guarantee shall be effective as from the commissioning date, but not later than six
months as from the date of the purchase.
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Мethod of connecting of story (local) heating
1. Air bleeder 7. Safety valve
2. Electric heater 8. Shut off valve
3. Electric boiler 9. Manifold Box
4. Expansion tank
5. Circulation pump
6. Water filter Fig. 1
Method of connecting the system to a solid fuel boiler
1. Safety valve by temperature 7. Return valve
2. Air bleeder 8. Water filter
3. Shut off valve 9. Safety valve by pressure
4. Electric heater 10.Solid fuel boiler
5. Electric boiler 11. Expansion tank
6. Circulation pump 12. Manifold Box
Fig. 2
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ELECTRICAL BOILER MR 6 ÷ 30 kW
Fig. 3
1. Frame 10. Heaters
2. Safety Valve by pressure 2.5 bar 11. Circulation Pump
4. Automatic breaker 12. Control Panel
with additional protection 13. Pressure-gauge Valve
5. Emergency (blocking) thermostat 14. Expansion Tank
6. Air bleeder 15. Thermostat Pocket
7. System control –contactors 16. Thermostat -bimetallic
8. Water Container 17. Pressure switch
9. Pressure-gauge
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ELECTRICAL BOILER MX 37 ÷ 60 kW
Fig. 4
1. Frame 10. Heaters
2. Safety Valve by pressure 2.5 bar 11. Circulation Pump
4. Automatic breaker 12. Control Panel
with additional protection 13. Pressure-gauge Valve
5. Emergency (blocking) thermostat 14. Power Wires
6. Air bleeder 15. Thermostat Pocket
7. System control –contactors 16. Thermostat -bimetallic
8. Water Container 17. Pressure switch
9. Pressure-gauge
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ELECTRICAL MODULE K 6 ÷ 30 kW
Fig. 5
1. Frame 9. Pressure-gauge
2. Safety Valve by pressure 2.5 bar 10. Heaters
4. Automatic breaker 12. Control Panel
with additional protection 13. Pressure-gauge Valve
5. Emergency (blocking) thermostat 15. Thermostat Pocket
6. Air bleeder 16. Thermostat -bimetallic
7. System control –contactors 17. Pressure switch
8. Water Container
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MODULE K 37 ÷ 60 kW
Fig. 6
1. Frame 9. Pressure-gauge
2. Safety Valve by pressure 2.5 bar 10. Heaters
4. Automatic breaker 12. Control Panel
with additional protection 13. Pressure-gauge Valve
5. Emergency (blocking) thermostat 14. Power Wires
6. Air bleeder 15. Thermostat Pocket
7. System control –contactors 16. Thermostat -bimetallic
8. Water Container 17. Pressure switch
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