52
NOTICE
During initial ignition, burner may not ignite. This may
cause boiler to shut down until any air in gas pipes is
vented. Repeat ignition procedure until gas reaches the
burner. To reset boiler operation, press
for at least
2 seconds.
9.10 De-Aeration Function
Used to eliminate air inside the heating circuit when boiler
is installed or after maintenance when water is drained from
primary circuit.
1.
Press buttons
together and hold for 6 seconds.
On
appears on display for a few seconds, followed by
program row
312
.
2.
The electronic board will activate pump on/off cycle for
10 minutes. Function will automatically stop at end of the
cycle.
3.
To manually exit this function, press
buttons
together and hold for 6 seconds.
9.11 Commission Set Up (Gas) - Changing The Type
Of Gas
During the
first
installation boiler carries out an automatic
commissioning function.
The system is able to detect the gas type present in the
network.
Correct gas type setting, is made by pressing two buttons at
the same time, see section 9.6 Commissioning.
Change of gas type is made
after
the first installation:
• Change parameter
P02
. See section 9.6
Commissioning
and
section 9.15
Parameter Settings.
• Check minimum gas pressure is suitable for selected gas:
minimum gas pressure is determined with boiler operating
at high fire and any other appliances connected to same fuel
source operational as well (whole house load)
Gas A (NG) = 3.5" (8.7 mbar)
Gas E (LPG) = 8.0" (19.9 mbar)
• Place supplied label with indication of gas type close to
the data plate of boiler replacing the original.
• Perform Automatic Calibration Function -
Section 9.8.
• Manufacturer recommends
verification of CO
2
concentration
on the flue.
FIGURE 9-3 - Gas Inlet Tap - Pi
9 - START UP PROCEDURE
PI = Gas Supply Inlet Pressure Tap
IMPORTANT INFORMATION
A. If venting or gas recognition function is interrupted
by power blackout, start function again when power is
restored. Press
and
together and hold at same
time for at least 6 seconds.
B. If display shows fault
E118
(low pressure in hydraulic
circuit) open filling tap on appliance and restore correct
pressure.
C. If gas recognition function is interrupted due
to fault (e.g.:
E133
no gas) press
to
reset. Then press
and
(for at least
6 seconds) to restart the function again.
If gas recognition function is interrupted due to
overheating, restart function by pressing and holding
down together for at least 6 seconds.
D. Combustion of this appliance has been factory controlled,
calibrated and set for operation with
Gas A
(Natural
Gas).
E. During Gas Type Control Function, combustion ratio will
increase for a short period of time while gas type is being
established.
9.9 Manual Calibration Function:
Manual Calibration phase starts at the end of the Automatic
Calibration.
The Display shows the boiler power and adjustment of the
CO2 value (parameter setting) during Manual Calibration
sequence.
The process begins at minimum power.
A. After Automatic Calibration sequence with
flashing together on the display, you can adjust
minimum power combustion by pressing
to lower %
CO
2
, and
to raise % CO
2
.
B.
When minimum power combustion is in the specified
range, press
and then
to reach ignition power.
C. Press
to adjust ignition power combustion. Press
to lower % CO
2
, and
to raise % CO
2
.
D.
When ignition power combustion is in the specified
range, press
and then
to reach maximum power.
E. Press
to adjust maximum power combustion. Press
to lower % CO
2
, and
to raise % CO
2
.
F.
When maximum power combustion is in the specified
range, press
to exit Manual Calibration Function
ESC
is displayed on the sceen..
240013354 REV B [09/15/2021]
Summary of Contents for MAC-115
Page 2: ...MAC 205 ...
Page 4: ...MAH 165 ...
Page 77: ...73 APPENDIX A WIRING DIAGRAMS A 2 MODEL 125 Heat Only 240013354 REV B 09 15 2021 ...
Page 78: ...74 APPENDIX A WIRING DIAGRAMS A 3 MODEL 165 Heat Only 240013354 REV B 09 15 2021 ...
Page 79: ...75 APPENDIX A WIRING DIAGRAMS A 1 MODEL 115 Combi 240013354 REV B 09 15 2021 ...
Page 80: ...76 APPENDIX A WIRING DIAGRAMS A 4 MODEL 150 Combi 240013354 REV B 09 15 2021 ...
Page 81: ...77 APPENDIX A WIRING DIAGRAMS A 5 MODEL 205 Combi 240013354 REV B 09 15 2021 ...
Page 82: ...78 NOTES 240013354 REV B 09 15 2021 ...
Page 118: ...34 MODEL 125 Heat Only 125 HEAT ONLY WIRING DIAGRAM PN 240011430 REV P 09 15 2021 ...
Page 119: ...35 MODEL 165 Heat Only 165 HEAT ONLY WIRING DIAGRAM PN 240011430 REV P 09 15 2021 ...
Page 120: ...36 115 COMBI WIRING DIAGRAM MODEL 115 Combi PN 240011430 REV P 09 15 2021 ...
Page 121: ...37 MODEL 150 Combi 150 COMBI WIRING DIAGRAM PN 240011430 REV P 09 15 2021 ...
Page 122: ...38 MODEL 205 Combi 205 COMBI WIRING DIAGRAM PN 240011430 REV P 09 15 2021 ...
Page 127: ...43 Low Water Cutoff Detail LOW WATER CUTOFF NO NO YES PN 240011430 REV P 09 15 2021 ...
Page 132: ...48 3 FAULT SOLUTION SECTIONS PN 240011430 REV P 09 15 2021 ...
