Parameter Settings; Description Of Parameters: Factory Settings - UTICA BOILERS MAHF-100 Manual

For Natural Gas :
Input (MBH) =
Example: Natural Gas - Gas flow from
Meter = 2 cu ft
Measured time = 72 seconds
=
For Propane (LP):
Input (MBH) =
Input Rate (MBH)
For Metric formulas- See Glossary
2.
Compare measured input to table below. If
calculated input is not in range given in Table 9-2
check firing rate again after setting the combustion
following steps in section 9.12.
NOTICE
Important! Record any changes made to
Parameters on chart found on Page 46 of the
Application Guide supplied with your boiler.

9.16 Description Of Parameters: Factory Settings

P01
Manufacturer information
Gas used
P02
00 = Gas A (Natural Gas)
01 = Gas E (LPG Gas)
Hydraulic system
00 = instantaneous appliance
03 = instantaneous appliance with pre-heat function
04 = heating only appliance with DHW thermostat
P03
05 = appliance with external storage indirect tank
08 = heating only appliance
13 = instantaneous appliance with pre-heat function for solar application
Outdoor temperature sensor input configuration
00= with outdoor temperature sensor connected, external temperature value has influence to calculate
heating flow temperature set-point
P06
01= with outdoor temperature sensor connected, display shows external temperature value (no
influence)
02...05 = no function is associated
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
P07
shows
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).
P09
Manufacturer information
Parameters continued on next page
9 - START UP PROCEDURE
3600 x cu ft
seconds
3600 x 2 cu ft
= 100 MBH
72 seconds
9160 x cu ft
seconds
E178 anomaly.
Table 9-2 Input Rate @ High Fire (MBH)
Approximate Rate @
100% Fire (MBH)
Size

9.15 Parameter Settings

Program boiler electronic board parameters as follows:
• Press and
for 6 seconds until program "P01" appears on the
display alternated with the set value;
• Press or
• Press , value of selected parameter begins
flashing, press
• Press to confirm the value or press
exit without saving.
Further information in regards to parameters listed in
the following table are supplied together with required
accessories if necessary.
52
100 93.5
115 115
125 125
150 150
165 164
205 205
together, hold them down
to scroll the list of parameters;
to change the value;
125,165
240013371 REV B, [10/01/2021]
to
FACTORY
SETTINGS
100, 115,
150,205
01
00
08 00
00
00
Default 01