Connection To The Flue - Joannes ELLEN MD 30 BI 100 Instrucciones De Uso

ELLEN MD 30 BI 100
Room thermostat (optional)
B
IMPORTANT: THE ROOM THERMOSTAT MUST HAVE VOLTAGE-FREE
CONTACTS. CONNECTING 230 V TO THE ROOM THERMOSTAT TERMI-
NALS WILL PERMANENTLY DAMAGE THE ELECTRONIC BOARD.
When connecting time controls or a timer, do not take the power supply for
these devices from their breaking contacts Their power supply must be by
means of direct connection from the mains or with batteries, depending on the
kind of device.
Accessing electrical terminal block
The terminal block for electrical connections can be accessed after lifting the cover (see fig. 16).
fig. 16 - Accessing the terminal block

3.6 Connection to the flue

The diameter of the flue connection pipe must not be less than that of the connection on
the anti-backflow device. Starting from the anti-backflow device it must have a vertical
section at least 50 cm long. The current standards must be complied with regarding the
dimensioning and installation of the flues and connection pipe.
The diameter of the collar in the anti-backflow device is given in fig. 25.
4. SERVICE AND MAINTENANCE
4.1 Adjustments
All adjustment and conversion operations must be carried out by Qualified Personnel.
The manufacturer declines any liability for damage or injury caused by unqualified and
unauthorised persons tampering with the unit.
Gas conversion
The unit can operate on natural gas or LPG and is factory-set for use with one of these
two gases, as clearly shown on the packing and on the dataplate. Whenever a gas dif-
ferent from that for which the unit is arranged has to be used, the special conversion kit
will be required, proceeding as follows:
1. Replace the nozzles at the main burner, fitting the nozzles specified in table 3 on
page 29, according to the type of gas used
2. Modify the parameter for the type of gas:
• put the boiler in standby mode
• Press the reset button (detail 8 - fig. 1) for 10 seconds: the display shows "TS"
flashing
• press the reset button (detail 8 - fig. 1): the display shows "P01".
• Press the DHW buttons (details 1 and 2 - fig. 1) to set parameter 00 (for oper-
ation with natural gas) or 01 (for LPG).
• Press the reset button (detail 8 - fig. 1) for 10 seconds.
• the boiler will return to standby mode
3. Adjust the minimum and maximum pressures at the burner (see relevant section),
setting the values given in the technical data table for the type of gas used
4. Apply the sticker contained in the conversion kit, near the dataplate as proof of the
conversion.
B
To change from Natural Gas to LPG, it is necessary to remove the gas baffle
(1 - fig. 17)
To change from LPG to Natural Gas, it is necessary to fit the gas baffle (1 -
fig. 17 and table 3 on page 29)
TEST mode activation
Press the heating buttons (details 3 and 4 - fig. 1) together for 5 seconds to activate the
TEST mode. The boiler lights at the maximum heating power set as described in the fol-
lowing section.
The heating symbol (detail 25 - fig. 1) and DHW symbol (detail 13 - fig. 1) flash on the display.
To deactivate the TEST mode, repeat the activation sequence.
The TEST mode is automatically disabled in any case after 15 minutes.
Adjustment of pressure at burner
Since this unit has flame modulation, there are two fixed pressure values: the minimum and
maximum, which must be those given in the technical data table according to the type of gas.
• Connect a suitable pressure gauge to pressure point "B" downstream of the gas valve.
• Remove the protection cap "D".
• Operate the boiler in TEST mode by pressing the heating buttons (details 3 and 4 -
fig. 1) at the same time for 5 seconds.
• Set the heating power to 100.
• Adjust the maximum pressure with the screw "G", clockwise to increase it and anti-
clockwise to decrease it.
• Detach one of the two fastons "C" from the modureg on the gas valve.
• Adjust the minimum pressure with the screw "E", clockwise to decrease it and anti-
clockwise to increase it.
• Reconnect the faston detached from the modureg on the gas valve.
• Check that the maximum pressure has not changed.
• Refit the protection cap "D".
• To terminate the TEST mode, repeat the activation sequence or wait 15 minutes.
A
After checking or adjusting the pressure, make sure to seal the adjust-
ment screw with paint or a specific seal.
R
A = Upstream pressure point - B = Downstream pressure point
C = Modureg electrical connection - D =Protection cap
E = Min. pressure adjustment - F = Modureg
G = Max. pressure adjustment - I = Electrical connection Gas valve
M = Pressure gauge - R = Gas outlet
S = Gas inlet
cod. 3540Z870 - 01/2011 (Rev. 00)
1
fig. 17 - Gas baffle
fig. 18 - TEST mode (heating power = 100%)
+
F I
M
S
A
B
fig. 19 - Gas valve
D
E
G
C
F
EN 25