Remeha Gas 210 ECO INHOUD Preface 7.6.10 High limit temperature setpoint (G) SAFETY instructions 7.6.11 Modulation start point dT (H) Symbols 7.6.12 Minimum water pressure (I) 7.6.13 Adjustments options/ General boiler description accessories (J) 7.6.14 Base point internal compen/ construction...
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Options/accessories 9.7.1 Provision for thermostat pocket 9.7.2 Water pressure sensor 9.7.3 Differential pressure sensor 9.7.4 Gas valve proving (only for 120, 160 and 200 kW boilers) 9.7.5 Minimum gas pressure switch 9.7.6 Indicating module No.2 Remaining connections 9.8.1 System pump 9.8.2 Frost protection 10 Commissioning...
Indicates possible danger of electric shock. Seri- ous personal injury may occur. Boiler modifications and spare parts The boiler must not be modified or non-Remeha spare Instructions contain useful information. parts fitted without the express written approval of Remeha.
Remeha Gas 210 ECO GENERAL BOILER DESCRIPTION The Remeha Gas 210 ECO boiler is a pre-assembled, free standing, gas fired, high efficiency condensing boiler. The sectional cast aluminium heat exchanger and other major components are contained within a sealed air box.
CONSTRUCTION 3.1 Boiler layout Fig. 02 Cut away view of Remeha Gas 210 ECO (160 kW model shown) air supply 18. condensate connection flue gas outlet 19. heat exchanger inspection hatch combustion test point (O 20. instrument panel sealed air box 21.
Remeha Gas 210 ECO 3.2 Operation principle Combustion air is drawn into the closed air box through the air inlet from the plant room (open flued) or from outside via the eccentric flue system (room sealed) by an air supply fan.
Remeha Gas 210 ECO 4.2 Technical data Remeha Remeha Remeha Remeha Boiler type Gas 210 Gas 210 Gas 210 Gas 210 ECO - 80 ECO - 120 ECO - 160 ECO - 200 General Number of sections qty. Casing Colour...
4.3 Quotation specifications - Cast aluminium - sectional pre-mix gas fired boiler - Sectional heat exchanger manufactured from cast aluminium - Maximum operating pressure of 6 bar - Maximum operating temperature of 90°C - Ultra low NO (max. 20 ppm, O = 0%, dry) - Pre-mix, fully modulating (10-100%) gas burner with unique IMS gas/air ratio control for maximum efficiency...
Up to 109% at Hi (98% at Hs) at an average water temperature of 35°C (40/30ºC). APPLICATION INFORMATION The Gas 210 ECO can be used on all new and refur- directly with the boiler controls to make full use of its bishment projects in both single and multiple configu- fully modulating feature, ensuring that the boiler closely rations.
a. code-display Indicates on user level: - 1 digit or letter operating mode - ! digit or letter with dot setting mode - ! digit or letter with flashing dot read-out mode - letter b shut-off mode - letter h forced full load - letter l forced part load...
Remeha Gas 210 ECO 7.1.5 Display of values with more than two digits - values from 200 to 299 will be indicated by a dot behind every digit e.g. )) = for 200, !) = 210, The display has only two digits available therefore val-...
Actual flue gas temperature Actual outdoor temperature (with outside temperature sensor) Actual heat exchanger temperature Flow temperature (setpoint) Actual heat demand status and differential air pressure switch & position Actual open to close time IMS Requested output Calculated or actual output Status IMS Actual valve position IMS Actual water pressure*...
Remeha Gas 210 ECO Standby; there is no heat demand from control system or IMS is moving to maximum Pre-purging (12 seconds) Ignition The burner is firing Waiting mode; the fan runs and the boiler waits until sufficient air transport is established (air pressure...
Flow / return ∆t factory-set maximum exceeded. The boiler will Check: shut off for 150 seconds and then restart. Should the dT condi- - system full of water and under tions remain the same after 20 attempts (within one heat demand pressure cycle), this code will be recorded as a shutdown failure and the - pumps are running...
Remeha Gas 210 ECO Fig. 05 Adjusting maximum flow temperature 7.5.2 Pump run on time (@) Code Description Pump run on time can be adjusted (Please refer to x = 1, 2, Heat demand off installation contractor). 3, 4 or 5...
Remeha Gas 210 ECO 7.6.2 Boiler output to indicate high fire (%) Adjustable from 0 to 100%, factory setting 90%. This value sets the point (in %) which indicates the boiler is at high fire. Only active when optional Volt free module No. 2 is fitted.
Important!! The boiler starts to modulate at Examples: the setpoint and will be at minimum output if the dT* - Factory setting is 0: the analog output will be in %. continues to rise to 45°. At 45°C the boiler will shut - Water pressure sensor (1) and valve leak proving down (shut-off code b #)).
Remeha Gas 210 ECO actual value, 10 - )0 (=100) Actual output (%) calculated position, 00 = IMS closed (the LED above the [+]-key is Status of IMS illuminated green) or IMS running 01 = Minimal position IMS 02 = IMS fully open...
7.9.1 Hours Run Press the m-key until the code-display shows succes- sively 1, , and .. This will alternate with three sets of two digits displaying the number of hours as table. e.g. 14403 Code Description hours Hours run in hundred thou- sands and ten thousands Hours run in thousands and hundreds...
Manufacturers Instructions must NOT be taken as over- riding statutory obligations. 8.2 Delivery, positioning and support surface The Remeha Gas 210 ECO is supplied as standard fully assembled, plastic wrapped, crated on a pallet (70x120 cm), which can be easily moved with a pallet or hand truck.
8.3 Flue gas discharge and air supply the boiler. 8.3.1 General The Remeha Gas 210 ECO is suitable for conventional room ventilated or room sealed operation. Specify at the time of ordering if the boiler is to be supplied for room sealed operation.
90°, R=D Table 17 Calculation data room sealed applications Example: Gas 210 ECO, 120 kW - 4 sections, total length flue 25 m, 2 bends 90°. 25 m + 2 x 2.1 = 29.2 < 33 m → flue OK.
Remeha Gas 210 ECO The Remeha Gas 210 ECO boilers are capable of oper- All scale deposits will reduce the efficiency of the boiler ating with the air inlet and flue outlet in different pres- and should be prevented. However provided the above sure zones (CLV System).
Essex, CB1L 4QZ 8.5 Multiple installation Tel No: 0179 955 0811 With more than one Remeha Gas 210 ECO boiler a Fax No: 0179 955 0853 cascade configuration can be made (see example in Fig. 13). The table below shows the minimum dimen- sions of the pipe work connections and low loss header (see Table 19) based on a design dT of 20º...
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Remeha Gas 210 ECO Table 19 represents the minimal dimensions of low loss header and various pipes, based on a dT of 20°C. The Remeha Gas 210 ECO has no built-in pump. Boiler side Installation side Fig. 14 Low loss header D ∅...
Provided by monitoring the temperature sensors in the boiler. 9.2.1 Power supply The Remeha Gas 210 ECO is supplied with a low water The boiler is suitable for a supply of 230V-1-50Hz with protection on the basis of temperature measurement.
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Remeha Gas 210 ECO terminal terminal Control unit X05.10 X34.6 12 24 Outdoor Blocking signal sensor Control unit X05.9 X34.5 11 23 X24.2 X34.2 10 22 Analog input Alarm signal EXT. X24.1 X34.1 9 21 INTF. Control unit X04.3 X04.9...
9.4 Boiler control Input signal Description The Remeha Gas 210 ECO can be controlled using one (Volt) of the following methods: 0 - 0.5 Boiler off 0.5 - 1.0 Boiler off, pump on 1. Modulating (two wire control) Boiler output from 10 to 100% or To make full use of the boiler's modulating feature, a 1.0 -10...
Remeha Gas 210 ECO eter A to either 3 (on/off control without booster func- 9.5 Safety interlocks tion) or 1 (on/off control with booster function). 9.5.1 Shutdown interlock 4. High / low control (2 x no volt switched pairs) As standard the boiler is supplied with a shutdown inter- The heat output is controlled between part load (50%, lock carrying a 24 Volt AC boiler control circuit.
9.6.2 Indicating module No.1 9.7 Options/accessories With this standard module (AM3-2 print) it is possible to report / control the following: 9.7.1 Provision for thermostat pocket - Common alarm (lockout): the internal Volt free contact The flow pipe is tapped and standard plugged (½" BSP across terminals 21 and 22 (n/o) of the 24 V-terminal 'f').
Remeha Gas 210 ECO 9.7.5 Minimum gas pressure switch Cannot be used with multi boiler installations A minimum gas pressure switch can be connected to terminals 13 and 14 of the 24 V-terminal strip (X29) . The connections are polarity sensitive; terminal 11 Note that the wire bridge must first be removed.
COMMISSIONING 10.1 Initial lighting 16a. Check and correct, if necessary, the boiler for correct gas/air setup. Checking takes place on full and part Isolate main power supply. load, adjustment takes place only on full load. For Remove the front casing. checking and adjusting are required: an electronical Check gas supply is available, sound and vented.
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21. Set system controls to the required values. 22. Send the commissioning reports to Broag. The Remeha Gas 210 ECO is supplied with a number of factory default settings that should be cor- rect for most installations. If other setting values are required: see par.
Note: The boiler will first burn at forced part load. The factory setting for forced part load time is 2 minutes. This setting is correct if use is made of modulating controls (see point 22a). For on/off operation a forced part load time of 3 minutes is recommended (setting mode, parameter *, see par.
Remeha Gas 210 ECO FAULT-FINDING 11.1 General For a read out of the most recent faults, see par. 7.8. First of all check if it’s a failure message by verifying the following points: Besides failure codes (lockouts) also shut-off - Check if the power supply is switched on.
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Control fault Voltage interruption during lockout condition. Remove possible external EMC-influences (0-10v control cables and sen- External influences sor cables may require screening). Check: Air pressure differential - the air supply or flue gas outlet is not clogged or shows an assembly switch does not close.
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Remeha Gas 210 ECO Check: - light cell on fouling Close (0%) position IMS not - adjustment of the 0% pennant of the IMS detected - wiring and connectors. If OK, replace print on the IMS. The gas valve proving system (VPS) has detected a gas leak. Check for Gas leak detected external leaks.
INSPECTION AND MAINTENANCE INSTRUCTIONS 12.1 General 12.2.2 Cleaning the IMS The Remeha Gas 210 ECO design requires minimal Cleaning the IMS needs the following steps: maintenance, however, the highest efficiency levels can 1. Withdraw the front casing. only be guaranteed by ensuring annual inspection and 2.
Remeha Gas 210 ECO 12.2.4 Heat exchanger cleaning (exterior) 7. Switch on electrical power supply to the boiler, caus- ing the IMS to close whilst the grease will be distrib- Attention: The sealing between the inspection uted along the shaft.
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