Tab.9
If operating on propane
Type of boiler
Action
Gas 120 ACE - 65
Rotate the setting screw A on the venturi 6½ turns in a clockwise direction
Gas 120 ACE - 90
Rotate the setting screw A on the venturi 6½ turns in a clockwise direction
Replace the current gas valve unit with the propane gas valve unit according to the instruc
tions supplied with the propane conversion kit
Gas 120 ACE - 115
Rotate the setting screw A in a clockwise direction until it is closed, then:
Rotate the setting screw A on the gas valve unit 3½–4 turns in an anticlockwise direction
1. Set the fan speed as indicated in the table (if necessary). The setting
can be changed with a parameter setting.
Tab.10 Factory settings G20 (H gas)
Code
Parameter
Description
Adjustment range
Gas
120
ACE -
65
Gas
120
ACE -
90
Gas
120
ACE -
115
DP003
Abs. max fan DHW
Maximum fan speed on Domestic
Hot Water
1000 Rpm 7000 Rpm
5600
6300
6800
GP007
Fan RPM Max CH
Maximum fan speed during Central
Heating mode
1400 Rpm 7000 Rpm
5600
6300
6800
GP008
Fan RPM Min
Minimum fan speed during Central
H Domestic Hot Water
mode
1400 Rpm 4000 Rpm
1600
1600
1750
GP009
Fan RPM Start
Fan speed at appliance start
1000 Rpm 4000 Rpm
2500
2500
2500
Tab.11 Setting for gas type G30/G31 (butane/propane)
Code
Parameter
Description
Adjustment range
Gas
120
ACE -
65
Gas
120
ACE -
90
Gas
120
ACE -
115
DP003
Abs. max fan DHW
Maximum fan speed on Domestic
Hot Water
1000 Rpm 7000 Rpm
5300
5800
6500
GP007
Fan RPM Max CH
Maximum fan speed during Central
Heating mode
1400 Rpm 7000 Rpm
5300
5800
6500
GP008
Fan RPM Min
Minimum fan speed during Central
H Domestic Hot Water
mode
1400 Rpm 4000 Rpm
1600
1600
1800
GP009
Fan RPM Start
Fan speed at appliance start
1000 Rpm 4000 Rpm
2500
2500
2500
Tab.12 Setting for gas type G31 (propane)
Code
Parameter
Description
Adjustment range
Gas
120
ACE -
65
Gas
120
ACE -
90
Gas
120
ACE -
115
DP003
Abs. max fan DHW
Maximum fan speed on Domestic
Hot Water
1000 Rpm 7000 Rpm
5400
6000
6700
GP007
Fan RPM Max CH
Maximum fan speed during Central
Heating mode
1400 Rpm 7000 Rpm
5400
6000
6700
GP008
Fan RPM Min
Minimum fan speed during Central
H Domestic Hot Water
mode
1400 Rpm 4000 Rpm
1600
2000
1800
GP009
Fan RPM Start
Fan speed at appliance start
1000 Rpm 4000 Rpm
2500
2500
3500
2. Check the setting of the gas/air ratio.
7 Commissioning
7717201 - v03 - 25062019
MID _HMI T-control - Gas 120 ACE
35