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MYNUTE GREEN C.S.I. - R.S.I.
Lower Wobbe index (15°C-1013 mbar)
Lower heat value
Supply nominal pressure
Supply minimum pressure
MYNUTE GREEN 25 R.S.I.
Number of main burner nozzles
Burner diameter
Burner length
Gas diaphragm
CH maximum gas capacity
CH minimum gas capacity
Numbers of fan revolutions at slow start
Maximum number of fan revolutions (CH)
Minimum number of fan revolutions
MYNUTE GREEN 35 R.S.I.
Number of main burner nozzles
Burner diameter
Burner length
Gas diaphragm
CH maximum gas capacity
CH minimum gas capacity
Numbers of fan revolutions at slow start
Maximum number of fan revolutions (CH)
Minimum number of fan revolutions
12 - START-UP AND OPERATION
Mynute Green wall-mounted condensation boiler designed for the production
of heating and domestic hot water (for R.S.I. models if connected to an
external water tank).
The control panel (Fig. 12.1) contains the main boiler control and manage-
ment functions.
12.1 - Switching on the appliance
Switch on the boiler as follows:
• open the gas tap under the boiler by turning it anti-clockwise (Fig. 12.2).
• turn on the general switch of the system and then, after lowering the
door, turn the function selector to summer
(only for C.S.I. models) (Fig. 12.3) depending on the chosen
operating mode.
After being powered, the boiler begins an automatic vent cycle lasting
approximately 2 minutes.
During this phase the two digits light up alternatively (fig. 12.16).
To interrupt the automatic vent cycle, pull out the handle A and press button
B (fig. 12.17).
For C.S.I. models:
SUMMER (
): with the selector in this position, just the traditional domestic
hot water function is activated. The display indicates the temperature of the
domestic hot water (Fig. 12.4).
WINTER (
): with the selector in this position, the heating water and
domestic hot water functions are activated. The display indicates the delivery
temperature of the heating water (Fig. 12.5) and that of the domestic hot
water depending on current demand (Fig. 12.4).
WINTER COMFORT (
): with the selector in this position, as well as the
traditional function of heating water and domestic hot water, the preheating
function is also activated which keeps the water in the domestic hot water
exchanger hot in order to reduce waiting times. The display indicates the
delivery temperature of the heating water (Fig.12.5) and that of the domestic
hot water depending on current demand (Fig. 12.4).
For R.S.I. models:
SUMMER (
, only with the external water tank connected): with the
selector in this position the traditional domestic hot water function provided
by the water tank is activated. The display indicates the delivery tempera-
ture (Fig. 12.4).
WINTER (
): with the selector in this position, the boiler produces hot
water for heating and, if connected to an external water tank, it provides
water to it to allow it to prepare domestic hot water. The display indicates the
delivery temperature of the heating water (Fig. 12.4 and Fig. 12.5).
Adjusting heating water temperature
To adjust the heating water temperature turn the knob marked
12.6) clockwise to increase and anticlockwise to decrease.
When turning the knob, the required temperature automatically appears on
the digital display.
Depending on the type of system, it is possible to pre-select the
suitable temperature range:
-
standard systems 40-80°C
-
floor systems 20-45°C.
For further details, consult the "Boiler configuration" section.
10
, winter
or winter comfort
(fig.
G20
MJ/m
S
45,67
3
MJ/m
S
34,02
3
mbar (mm H
O)
20 (203,9)
2
mbar (mm H
O)
10 (102,0)
2
n°
1
Ø mm
70
Ø mm
120
mm
6,7
Sm
/h
2,64
3
kg/h
Sm
/h
0,63
3
kg/h
revs/min
3.700
revs/min
5.500
revs/min
1.700
n°
1
Ø mm
70
Ø mm
120
mm
7
Sm
/h
3,66
3
kg/h
Sm
/h
0,74
3
kg/h
revs/min
3.700
revs/min
6.000
revs/min
1.400
Adjusting heating water temperature with an external probe
connected
When an external probe is connected, the value of the delivery temperatu-
re is automatically chosen by the system which rapidly adjusts ambient
temperature to the changes in external temperature.
To increase or decrease the temperature with respect to the value
automatically calculated by the electronic board, turn the heating water
selector (Fig. 12.6) clockwise to increase and anticlockwise to decrease.
Adjustment settings range from comfort levels - 5 to + 5 which are indicated
on the digital display when the knob is turned.
Adjusting domestic hot water temperature
For C.S.I. models: to adjust the domestic hot water temperature (baths,
showers, kitchen, etc.) turn the knob marked
increase and anticlockwise to decrease.
When turning the knob, the required temperature automatically appears on
the digital display. The domestic hot water adjustment ranges lies between
35 and 60 °C. When choosing the temperature, both for heating and domestic
hot water, the display shows the value being selected. About 4 seconds
after the selection has been made, the modification is memorised and the
display returns to the delivery or domestic hot water temperature read by
the probe.
For R.S.I. models:
• CASE A heating only - adjustment inapplicable
• CASE B heating only + external water tank with thermostat - adjustment
inapplicable
• CASE C heating only + external water tank with probe - to adjust the
temperature of the domestic hot water in the water tank, turn the tempe-
rature selector clockwise to increase and anticlockwise to decrease.
The adjustment range lies between 35 and 60°C.
When choosing the temperature, both for heating and domestic hot water,
the display shows the value being selected. About 4 seconds after the
selection has been made, the modification is memorised and the display
returns to the delivery temperature.
Working the boiler
If a programmable timer or ambient thermostat are mounted, these must
be switched on and adjusted to higher than ambient temperature in order to
allow the boiler to start.
The boiler remains on standby until the burner ignites as a result of a
demand for heat. The green indicator LED (A, Fig. 12.8), located on the left-
hand side of the panel, lights up to indicate the flame is present.
The boiler continues to work until the selected temperatures have been
reached. It then returns to "stand-by" while displaying delivery temperature.
In the event of a starting or operating fault, the boiler performs a "SAFETY
STOP": the green indicator LED on the control panel goes out, a fault code
flashes on the display (Fig. 12.9) and a red indicator LED (B) lights up in the
event of a shutdown.
To identify the fault codes and reset the boiler, consult the "Indicator LEDs
and faults" section".
Reset function
To reset the boiler, turned the function selector to
move it to the required position and check that the red indicator LED has
gone out.
G31
70,69
88
37 (377,3)
1
70
120
4,7
1,94
0,47
3.700
5.400
1.700
1
70
120
5
2,69
0,54
3.700
6.000
1.400
(Fig. 12.7) clockwise to
(Fig. 12.10), then
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