Gas 610 ECO - Central heating boiler Remeha - Free user manual and instructions

USER MANUAL Gas 610 ECO Remeha

A venturi (6) is placed on the inlet side of the fan (7), see fig. 01. On heat demand the fan starts to pre-purge. Combustion air is drawn into the boiler through the air inlet (1). The incoming air is mixed optimally in the ven- turi and later in the fan with the gas from the multiblock (10). The homogeneous gas / air mixture is brought to the burner by the fan. Depending on demand (under the dictates of flow/return sensor and other external/internal control inputs) the boiler output is controlled. The mixture is initially ignited by the combined ignition/ ionisation probe (8), which monitors the state of the flame. The products of combustion in the form of hot flue gases are forced through the cast aluminium heat exchanger (11) transferring their heat to the system water (the flue gas temperature is reduced to approxi- mately 5°C above the temperature of the system return water). If the flue gas temperature decreases below dew point (55°C) the water vapour in the flue gases will begin to condense out in the boiler, transferring its latent heat into the system water, increasing the output of the boiler without increasing the gas consumption. Condensation formed within the boiler and flue system is discharged from the boiler to an external drain via the drain pan / siphon (17) supplied. The flue gases turn in the drain pan (16) and are discharged vertically through the flue gas connection (2) to atmosphere.

40 On/off switch 41 Flue gas collector 42 Flue gas damper An intelligent, advanced boiler control* (‘abc

’) continu- ously monitors the boiler conditions, varying the heat output to suit the system load. The control is able to react to external “negative” influences in the rest of the system (flow rates, air / gas supply problems) maintain- ing boiler output for as long as possible without resorting to a lock out condition. At worst the boiler will reduce it’s output and/or shut down (shut off mode) awaiting the “negative” conditions to return to normal before re- starting. The ‘abc

’ control cannot override the standard flame safety controls.

• The Remeha Gas 610 ECO has a boiler control unit on each boiler module.10 Remeha Gas 310/610 ECO

LAYOUT OF THE INSTRUMENT PANEL

fig. 03 Instrument panel 00.31H.79.00010 The Remeha Gas 310 ECO boiler is supplied with an instrument panel. The Remeha 610 ECO is sup- plied with an instrument panel on each boiler module. This instrument panel is provided with an intelligent, advanced boiler control (‘abc

’). Using the keys, differ- ent menus can be accessed, various values can be read and settings made. The instrument panel consists of the following components:

3. Facility for incorporating a rematic

weather com- pensator. A. Code-display, indication of operating, setting, read- out, shut-off, test and failure codes. B. t-display, indication of temperatures, settings and shut-off and lock-out codes. C. Reset-key, to reset the boiler after a lockout. D. m-key, key to select the required mode (mode-key). E. s-key, key to select the required program within the selected mode (step-key). F. e-key, key to save the settings (store-key). G. [+]-key, to select a higher setting. H. [-]-key, to select a lower setting / switch function: manual override (hand/auto). The user has a number of setting options, which can be evoked via the m-key. The desired code (see next text block) can be chosen by pressing the m-key until the digit ! (with dot) appears in the code-display. Now choose the desired code by pressing the s-key. Next, set the required value in the t-display, using the [+]- and [-]-keys. Press the e-key to store the new value (value will flash twice). To gain access to the service level, the control system requires an input code. The boiler control has the following pre-set values: ! Flow temperature : 90°C @ Pump run on time : 3 minutes A Boiler control : 31 - modulating on flow temperature without booster function. Settings should only be adjusted after consulting your installer (or in case of emergency), see section ‘Setting mode at user level’ in our Technical Information. Code reports in code-display

Operating mode (x [[) During operation the code window shows the status (operation) of the boiler, whereas the t window indi- cates the measured boiler flow temperature. Code Description

The boiler is firing (flame detection)

Waiting; checking that there is sufficient air transport using fan and air pressure differen- tial switch (LDS)

Controls stop (burner off + post ventilation)

Run-on time, pump and fan

Gas leakage control11

COMMISSIONING THE BOILER

1. First follow the guidelines that your installer supplied

for the entire installation. If not available: follow the instructions below.

2. Check the water pressure in the installation

(min. 0.8 bar). Fill up when necessary.

3. Open the main gas cock.

4. Put the boiler control to heat demand.

5. Start the circulation pump.

6. Switch on the electrical supply to the boiler and the

on/off switch on the instrument panel.

7. The following operation course shall successively

appear on the code-display: 5 = Waiting mode; the fan runs and the boiler waits until sufficient air transport is established (air pres- sure switch open or closed). 1 = Pre-purging. 2 = Ignition of the gas/air mixture. 3 = The burner is firing. The boiler now operates. If this fails to work, switch the boiler to manual operation (see Chapter “Operation” from the Technical Informa- tion), set the flow temperature to the desired value and contact your installer.

PUTTING THE BOILER OUT OF OPERATION

1. First follow the guidelines that your installer supplied

for the entire installation. If not available: follow the instructions below.

2. Turn off the boiler control.

3. Close the main gas cock.

4. Switch off the electrical supply.

Attention! Think of the risk of freezing! If temperatures are low, it is recommended to run the central heating installation at a reduced temperature to avoid freezing up.

VENTING OF THE INSTALLATION

1. Put the boiler control to heat demand.

2. Open all the radiator valves.

3. Run the installation up to about 80°C.

4. Switch off the electrical supply to the boiler.

5. Wait for approximately 10 minutes.

6. First vent the installation on all the vent points

(boiler, radiators, etc.).

7. Check the water pressure and, if necessary, fill up to

design system pressure; entirely fill the filling hose before connecting it to the installation.

8. Put the boiler into service again.

Ventilation (pré-ventilation: 12 sec, post-venti- lation: 3 sec.)