UTICA BOILERS MAHF-75 Installation, Operation And Maintenance Manual page 60

9 .1 6 Descript ion Of Pa ra m et ers: Fa ct ory Set t ings cont i.
The values listed below are factory defaults, there may be differences for each application
Model
Fuel
Set t ing
I gnition
P7 0
Fan
Speed* *
RPM
Set t ing
Maxim um
P7 1 * Fan
Speed* *
RPM
Set t ing
Minim um
P7 2
Fan
Speed* * RPM
To calculate fan
speeds
Boiler Power Select ion
1 = 115
2 = 75/ 100
3 = 150
P7 3
1 0 = 125
1 1 = 205
1 2 = 165
CH mode burner ignition delay after burner off due to water temperature exceeding limit setting
P7 4
wit h an int errupt ed call for heat
Ra n ge = 0- 255 seconds ( 0- 4.25 m in.)
0 - 1 0 V I n pu t
0 = Disabled
P7 8
1 = Tem perat ure Set point ( 3V = m inim um set point , 10V = m axim um set point
2 = Power Set point ( 3V = m inim um power, 10V = m axim um power)
4 = Disabled
P8 2
3 = Enabled 0- 10V DC I nput
N OTE : To scroll t o param et er 4 2 a n d a bove it is necessary t o set P2 2 t o 22 before scrolling up t o t he param et er.
* * See Tables : Sect ion 12.4 - Param et ers for High Alt it ude
9 - START U P PROCED U RE
7 5 1 0 0
Natural LP Natural LP
35 35 35 35
3500 3500 3500 3500
85 85 85 85
5850 5850 5850 5850
50 50 50 50
1250 1250 1250 1250
1 1 5 1 2 5
Natural LP Natural LP
35 35 38 38
3500 3500 3800 3800
220 220 115 65
7200 7200 6150 5650
55 55 40 25
1300 1300 1150 1000
( P70 x 100)
( P71 x 10) + 5000
* For 165 Model: ( P71 x 10) + 4500
( P72 x 10) + 750
5 6
FACTORY SETTI N GS
1 0 0 ,
7 5
1 2 5 ,1 6 5
1 5 0 1 6 5
Natural LP Natural LP
38 38 44 44
3800 3800 4400 4400
220 170 105 120
7200 6700 5550 5700
40 35 43 45
1150 1100 1180 1200
Default depends on
firing rate of boiler as
240013503 REV A, [ 03/ 15/ 2022]
1 1 5 ,
1 5 0 ,2 0 5
2 0 5
Natural LP
44 44
4400 4400
225 220
7250 7200
40 45
1150 1200
list ed.
0
0
4