5. REGULATING THE APPLIANCE
5.1 Parameters table
PARAMETER N° TYPE OF OPERATION PARAMETER VALUE FUNCTION
1 Selects the type of water heater
Water heater with storage tank
B. w/storage tank Comfort (+45°F)
D.H.W. Temperature 95-160 °F
2 Selects the type of gas
Sets the central heating
temperature
Standard (86-167°F)
Reduced (77-104°F )
4
1
Selects pump mode during
heating phase
00
01
Standard ( 3’ pump overrun)
Permanent (pump runs continuously)
5 Water hammer prevention
6 Central heating timer 00-90 (default = 36)
Delays the heating restart to prevent
frequent On/Offs, Expressed in steps of 5
sec (factory set at 36 x 5 = 180”)
7
Central heating pump overrun
timer
00-90 (default = 36)
The overrun timer can be modified.
Expressed in steps of 5 sec (factory set
8 D.H.W pump overrun timer 00-90 (default = 18)
The overrun timer can be modified.
Expressed in steps of 5 sec (factory set
9 Minimum gas pressure setting -
Not applicable for FLOWMAX water
heaters
Minimum central heating output
setting
Not applicable for FLOWMAX water
heaters
maximum central heating output
-
Not applicable for FLOWMAX water
heaters
12 Ignition sequence setting -
Not applicable for FLOWMAX water
heaters
D.H.W priority function (2 min
delay on dhw function)
14
4
Selects the type of burner
00
01
02
03
Atmospheric (not FLOWMAX)
FLOWMAX 90
FLOWMAX 120
FLOWMAX 170
15
2
Zone management board
activation
16
3
Telephone control activation
17 Minimum fan speed setting
60 Hz (Natural Gas)
60 Hz (propane)
To set the minimum frequency value (Hz)
for the fan operation
18 Maximum fan speed setting
155 Hz (Natural Gas)
143 Hz (propane)
To set the maximum frequency value
(Hz) for the fan operation
Minimum fan speed setting
(Central Heating)
60 Hz (Natural Gas)
60 Hz (propane)
To set the minimum frequency value (Hz)
for the fan operation in heating mode .
20
Maximum fan speed setting
(Central Heating)
155 Hz (Natural Gas)
143 Hz (propane)
To set the maximum frequency value
(Hz) for the fan operation in heating
21 Ignition sequence setting
90 Hz (Natural Gas)
110 Hz (propane)
To set the fan frequency value (Hz) at the
ignition
22 Fan frequency value display
Off
On (for 10 min. time)
NOTES:
1 - Activate only for “heating only” water heaters;
2 - If the heating system has more than one zone, an additional interface board (optional extra) must be installed on the circuit board and
parameter 15 set at 01;
3 - To install the telephone control, use non-polarised conductors connected to contact TA of the terminal board in parallel with the remote
control if fitted. Set the parameter 16 at 01.
4- When the parameter value 01/02/03 is set, parameters from no.17 to 22 are automatically activated and water heater settings are carried-
out in through these parameters (in Hz) that replace parameters from no.9 to no.
Once the parameter value has been set according to the water heater output, the P.C.B will automatically adjust the maximum and