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5. Commissioning
5.7 Changing the settings
The boiler control panel is set for the most common
heating systems. With these settings, practically
all heating systems operate correctly. The user or
installer can optimise the parameters according to own
preferences.
5.7.1. Parameter descriptions
Parameter
Supply Temperature
p1
(Set temperature)
Domestic hot water
p2
Temperature: T
Heating / DHW mode
p3
ECO mode
p4
Anticipation resistance
p5
Display screen
p6
Post-circulation of the pump
p7
Brightness of display lighting
p8
Maximum fan speed
p17
(Heating)*
Maximum fan speed (DHW)*
p18
Minimum fan speed
p19
(Heating+DHW)*
Minimum fan speed (offset)*
p20
Start speed*
p21
Open vented: Start speed
p21
Minimum water pressure
p22
Maximum supply
p23
temperature of system
* Sea level values: see for altitude adjustments (chapter 5.3.1 , Page 67 and 5.4.1, Page 68)
MCA-Pro ISM Rv.4.1 2/2017
Description
68 to 194ºF
20 to 90ºC
104 to 149ºF
40 to 65 ºC
SET
0 = Heating deactivated / DHW deactivated
1 = Heating activated / DHW activated
2 = Heating activated / DHW deactivated
3 = Heating deactivated / DHW activated
0 = Comfort
1 = Energy-saving mode
2 = Management using a programmable
thermostat
0 = No anticipation resistance for the ON/
OFF
thermostat
1 = Anticipation resistance for the ON/OFF
thermostat
0 = Simple
1 = Comprehensive
2 = Automatic switching to simple after 3
minutes
3 = Automatic switching to simple after 3
minutes; Key blocking is active
1 to 98 minutes
99 minutes = continuous
0 = Dimmed
1 = Bright
Natural gas
Propane (x100 rpm)
Natural gas
Propane (x100 rpm)
Natural gas
Propane(x100 rpm)
Natural gas
Propane
(x100 rpm)
(x100 rpm)
0 to 3 bar (x 0.1 bar)
0 to 43.5psig (x 0.1 psig)
32 to 190ºF
0 to 88ºC
MCA Pro 45/65/90/115
For the other settings, refer to the instruction
manuals for the control panel.
Adjustment range
(1)
(x100 rpm)
(1)
(x100 rpm)
(1)
(x100 rpm)
(1)
(x100 rpm)
45
65
90
115
180ºF/70ºC
131ºF/55ºC
1
2
0
2
3
1
56
56
64
66
56
56
66
56
56
64
66
56
56
66
15
16
16
18
15
16
19
50
0
00
50
50
0
0
75
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