59
10 - OPERATING INSTRUCTIONS
Parameter
Parameter Description
GMHB
227
NG
GMHB
227
LPG
GMHB
380
NG
GMHB
380
LPG
P01
DHW Modulation
0
0
0
0
P02
gas type selection
0
1
0
1
P03
Boiler setting
00= instantaneous combi boiler
02= instantaneous combi boiler with DHW micro tank
03= instantaneous combi boiler with pre heat
04= only heating boiler with DHW thermostat (system boiler 1)
05= only heating boiler for external DHW tank
06= boiler with DHW storage tank
07 = Heating only
08 = only heating boiler
09 = storage tank 3 (simple solar)
10 = instantaneous boiler for solar application
11 = instantaneous boiler for solar application with DHW micro-tank
13 = instantaneous boiler with pre-heat for solar application
15= only heating boiler with DHW pump for external tank
16= boiler with DHW storage tank and DHW pump with plate to plate
DHW heat exchanger
17 = System boiler 2 (04 without pump)
18 = only heating boiler with DHW pump for external tank
19= System boiler 3
8
8
8
8
P04
Manufacturer information. Shall be set to 02. Ignore all other options.
2
2
2
2
P05
Manufacturer information. Shall be set to 04. Ignore all other options.
4
4
4
4
P06
Outdoor reset input configuration
00= with an outdoor sensor connected, the outdoor temperature
value helps to calculate the supply temperature setpoint
01= with an outdoor sensor connected, the display shows the outdoor
temperature value (no influence on supply temperature)
02= no function is associated
03= heating request input (e.g. telephonic trigger)
04 = Low temperature safety thermostat
05 = DHW pump activation
0
0
0
0
P07
Aux input configuration
00..02 = No function is associated
03 = This is an input contact for CH request (e.g. trigger phone).
When contact CN2 is closed and Room Thermostat (RT) requiring
heat switches burner on.
Note: verify heating mode is enabled (winter or heat only mode)
04 = This is an input contact for Low Temperature Thermostat (e.g.
floor heating system).
When Low Temperature Thermostat connected on CN2 cuts out,
burner
switches off and display shows E178 anomaly.
Note: verify heating mode is enabled (winter or heat only mode)
05 = This is an input contact for external DHW recirculation pump.
When contact CN2 is closed the pump runs for a specific period.
To enable input it is necessary to set parameter P04 or P05 = 08 and
P69 = 05.
Pump will run at P19 minutes (Summer/Winter mode or Only Winter
mode) or P19/2 minutes (only Summer mode).
0
0
0
0
P08
Manufacturer information. Set to 0. Ignore other options.
0
0
0
0
P09
Manufacturer information. Set to 1. Ignore other options.
0
0
0
0
P10
Manufacturer information. Set to 0. Ignore other options.
0
0
0
0
P11
Manufacturer information. Shall be set to 02. Ignore all other options.
2
2
2
2
P12
Manufacturer information. Shall be set to 0. Ignore all other options.
0
0
0
0
P13
Max CH power setting
100
100
100
100
10.3.6 Description of Parameters
PN 240012369, REV A [08/31/2018]
