It is in your own interest and that of safety to ensure that the law is complied with. In addition to the above regulations, this appliance must be installed in compliance with the current I. Regulations for electrical installation, local building regulations, the Building Standards Scotland , Consolidation Regulations, by laws of the local water undertaking and Health and Safety Document No.
It should also be in accordance with the relevant recommendations in the current editions of the following British Standards and Codes of Practice, viz. The heating curve of the boiler is then set approx.
Each circuit has its own pump. The water flow is handled by a boiler pump. The boilers are directly weather compensated. Important: The Remeha Gas ECO is a certified appliance and must not be modified or installed in any way contrary to these "Installation and Servicing Instructions".
Manufacturers Instructions must NOT be taken in any way as overriding statutory obligations. Considering the acidity of this condensate ph 3 to 5 , only hard pvc materials must be used for connecting piping. The condensate collector of the secondary heat exchanger has a plastic discharge connection with a pvc pipe coupling, inside diameter 32 mm, at the end.
The connection can be made either to the right or left. The joint between the syphon and the condensate discharge piping should be made with a pvc coupling, to facilitate repair jobs. Please note: 1 If the water resistance of boilers 1 and 2 is not the same, the boiler with the less resistance should have a regulating valve. This piping should freely discharge to the drain by means of a trap. Specify at the time of ordering if the boiler is required to be supplied for room sealed operation. In that case, the boiler will be supplied with an air supply connection and a clamping band.
This connection must be fixed to the fan inlet remove the cover plate on the rear top casing. See para. Because of this, the number of potential boiler locations within the building is increased and less stringent requirements are imposed on the discharge location, since the air supply and the flue gas discharge are in the same pressure area. Besides, open air is generally cleaner, and this has a positive influence on the effective life of the unit. Flues: Single-walled aluminium or stainless steel Flexible stainless steel or plastic.
Air supply: Single-walled aluminium or stainless steel or flexible aluminium or flexible stainless steel or plastic. Discharge condensate out of the flue seperately - Construction: The flue must be airtight and watertight at the seams and joints.
The table indicates the maximum distance to be bridged to the outlet, depending on section size, version and diameter of the flue gas discharge pipe. Maximum allowable lengths of flue gas discharge piping in L m D in mm 7 sect. The adjacent table indicates the maximum distance between the boiler and the room sealed GVRS terminal supplied by Broag depending on the route, No. This pipe is not suitable for the 7 section boiler. This slotted plate serves to distribute the mixture over the burner 6.
The burners have a metal fibre cover in which a burner pattern is punched. Premix combustion ensures a very low NOx emission. The heat released by this condensation process the socalled latent heat or condensation heat is transmitted to the heating water. The condensate is collected in a collector 9 and discharged to the drains via a syphon 10 despatched as a loose item. The flue gases are reversed and discharged through the flue gas discharge pipe 11 included in the supply to the flue gas discharge pipe.
The required combustion air is blown into the air channel 2 by the fan 1 via a non-return valve. This valve is installed to prevent accumulated heat from escaping when the boiler is out of operation. Standing losses are reduced considerably this way. The boiler is provided with a number of separate burner compartments see fig. The combustion air is uniformly distributed over the various curved mixing sections in the air channel.
The injectors blow the gas radially into the air flow. This gas injection method ensures proper mixing of air and gas, thus creating a homogenous mixture. The curved mixing sections are connected to the distribution chambers 5 to distribute the mix evenly across the burnerhead.
A throttle plate is fitted in the distribution chamber of the burner compartment on the gas connection side. This control ensures optimal combustion under all circumstances.
Furthermore, each mixing chamber is Fig. As a standard procedure, the boiler has been designed to meet the CE and other relevant inspection requirements. LCD-display, composed of 4 lines of 20 characters each 5.
This instrument panel is provided with an advanced microprocessor control unit with an alphanumeric LCDdisplay. This display is composed of 4 lines of 20 characters each and is used for displaying operational or fault conditions, measured values and instructions. Using the buttons, different menus can be accessed, various values can be read and settings made see para.
When the ' ' button is pressed again, the third menu is called up. Furthermore, the maximum operating temperature can be changed in this menu using the ' ' and ' ' buttons. When the ' ' button is pressed after the modification, the modification is confirmed. By pressing the ' ' button the fifth menu is accessed. In the fifth menu the user is prompted for a code to access the service level.
By pressing the ' ' button, the main menu appears again. By pressing the ' ' button after entering the service code, the service level can be accessed. Using the buttons different menus can be called up various values can be read and settings made. The readout and setting options are divided into various levels: User level freely accessible Service level accessible using service code Factory level not accessible.
The main menu continuously displays the operating condition the flow and return water temperatures as well as the ionization current of the first ionisation probe. By pressing the ' ' button, the next menu is displayed.
The security code for this level is After entering this code using the ' ' and ' ' buttons in menu 5 and confirming it by pressing the ' ' button, the service level is accessed. Now, a selection can be made from 4 options: 1 Service settings 2 Service test 3 History data 4 Service level II factory level.
Select the desired option using the ' ' button and confirm it by pressing the ' ' button. At the user level, it is possible to set the maximum operating temperature. The setpoint will be limited to this level, irrespective of whether the analog input calls for a higher temperature. To 1 Service settings Various settings can now be made select desired option using ' ' and ' ' button and confirm it by pressing the ' ' button.
Option 1: Input selection Offers the posibility of an internal PI-regulation, by which the boiler regulates its output based on flow temperature and the possibility of an external PI-regulation, by which the boiler output is regulated by means of an external regulation.
As soon as the voltage exceeds 1V, the boiler will switch on. As soon as the voltage falls below 0,5V the boiler will switch off. The maximum operating temperature can be set at the user level.
The selection of the options can be obtained by placing the cursor onto the chosen line by means of the ' ' and ' ' buttons and by pushing next the ' ' button. The choice is confirmed by the two arrow heads which appear on the selected line.
Using the ' ' key, you switch to the next screen, where it is possible to select the method according to which the required temperature or required power can be passed on to the boiler control. There are three possibilities: A. Contacts A.
At the user level, the required flow temperature can be set. The boiler now will modulate on base of this temperature. At the user level, the maximum flow temperature can be set. Computer C. The switch-on command and the required flow temperature is passed on to the boiler via the RS connection.
All values, settings, etc. Here too, all measurement values and set tings can be passed on through this connection. Analog B. Option 3 Setpoint hysteresis: Using this parameter, the switch hysteresis can be set at the flow temperature. The switch hysteresis determines when the boiler will switch on. Option 5 Pressure settings: With this option, it is possible to set the maximum and minimum differential pressures of the boiler. This setting can be reduced in order to lower the maximum boiler load.
This means that the maximum boiler load can be perfectly adjusted to comply with the heat requirements of the building. Consult our technical department. Option 6 Relay switch: The control system has two operation sensor relays, one for sensing low power, and one for sensing high power.
The change-over point from low to high can be set using these parameters. Option 7 Gas leak detection: If a gas leak control is built in, this can be announced to the control unit via this screen. Option 8 Set hours: If the display print has to be replaced, it is possible to transfer boiler service hours onto the new print. Low flame and high flame hours need to be noted.
After which it is possible to set these hours onto the new print by using option nr. Option 9 High limit temperature: If desired, it is possible to decrease the high limit temperature of the boiler. Attention: This setting can only be lowered. If you do so, please also lower the maximum service temperature in order to avoid an boiler lock-out. This period can be set between 40 and seconds standard setting seconds To 2 Service test This option enables direct manual control of the boiler by the service engineer.
All outside influences are overridden except for the safety devices at the moment the service engineer uses the available options. The following settings are possible always select the desired option using the ' ' button and confirm with the ' ' button.
When the boiler is in operation: - Turn off the boiler. When the boiler is out of operation: - Start the boiler. To 3 Failure data Five shut down and five lock out failures can be stored in the memory of the control unit. If a failure is repeated several times, it is stored only once. For every failure stored the operational condition at the moment of failure can also be displayed. This facilitates easy trouble shooting. The locking or the blocking failure memory can be selected in the main menu of the "History data" option, using the ' ' and ' ' buttons.
Confirm with the ' ' button. Depending on the option selected, the number of blocking or lock out failures stored in the memory maximum 5 of each is displayed.
Failure No. To know which failure occurred last, the failure counter must be set to 1 using the ' ' and ' ' buttons. When the ' ' button is pressed for confirmation, the failure in question is seleced.
Using the ' ' button, various menus can now be called up, all indicating the operational condition of the boiler at the moment of failure see also para. The memory of the blocking failures is lost when the line voltage is lost, the memory of lock out failures is saved. To 4 Service level II factory level Not accessible.
From every menu within the service level the user level can be accessed by pressing the ' ' button once or several times, depending on the position within the menu structure at that time. If the service level is exited, the service code entered remains active for another 30 minutes. The service level can therefore automatically be accessed from the user level during these 30 minutes without having to enter the code again.
Furthermore, the control unit will automatically switch back to the user level after 30 minutes. VA1 VA2 7. The sensors monitor the rate of increase in water temperature and the differential temperature across the boiler.
If for instance one of the sensors signals a water temperature increase which is too rapid, the boiler will be shut down. At the same time the rate of increase in the water temperature is monitored, so that the boiler is switched off in time and heat transfer is prevented.
The dimensions allow for transportation of all parts to the boiler room through normal access doors. The casing and equipment parts are packed. Note: To enable disassembly of the side panel casing, the safety valve must not be installed directly next to the boiler. The standard location of these connections is the top left on the boiler.
If specified when ordering, it is possible to have the connections installed at the top right side. The water connections, the gas connection, the air supply connection in room sealed form and the control panel are always located at the same side. As an option, it is also possible to get the boiler delivered with separate flow and return connections DN 65 for the second heat exchanger ECO.
Refilling must be done at another place, to avoid thermal stresses in the boiler. Before filling, open the caps of the automatic vents installed on the opposite side of the connections on the end section of the primary heat exchanger and on the return box of the secondary heat exchanger.
It is recommended to drain the entire instal- lation at another place to avoid the penetration of any dirt from the installation into the boiler. The max. The boilers are designed for operating pressures between 0. During the pressure test, the boiler equipment must be isolated from the main gas pipe. The gas supply should be conform to the British Gas Safety regulations. The standard location of these connections is top left on the boiler.
The gas multibloc of the 7 and 9 section boilers include a gas filter. Therefore, no extra filters are needed in the gas supply pipe. The 11 to 19 section boilers have no filter mounted in the gas multi bloc. We'll get back to you only if we require additional details or have more information to share. For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.
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Related product manuals. Frequently Asked Questions Below, you will find the most frequently asked questions about the Remeha Gas What is the ideal room temperature?
Most people find that the ideal room temperature is between 19 and 22 degrees Celsius. Is the manual of the Remeha Gas available in English? Yes, the manual of the Remeha Gas is available in English.
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