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MCA
Pro
45/65/90/115
MCA-Pro ISM Rv.4.1 2/2017
4
Table of Contents
4.7.2 Gas Connection
32
4.7.3 Installation procedure for gas valve
33
4.8 Connections for the air and flue pipes
34
4.8.1 General
34
4.8.2 Flue gas venting
34
4.8.3 Installation venting materials
39
4.8.4 Lengths of the air/flue gas pipes
46
4.9 Electrical connections
51
4.9.1 Control unit
51
4.9.2 Recommendations
51
4.9.3 Standard PCB control
52
4.9.4 Connecting the pump
53
4.9.5 Connecting a third party control unit
55
4.9.6 Connecting the outdoor temperature sensor
56
4.9.7 Frost protection
57
4.9.8 Connecting the DHW tank sensor / thermostat
58
4.9.9 PC/Laptop connection
58
4.9.10 Shutdown input
58
4.9.11 Release input
59
4.10 Optional electrical connections
59
4.10.1 Box for the control PCBs
59
4.10.2 Connection options for the 0-10 V control PCB (IF-01)
60
4.10.3 Connection possibilities for the PCB (SCUS02
61
4.11 Electrical diagram
63
4.12 Filling the heating system
64
4.12.1 Water treatment
64
4.12.2 Filling the siphon
64
4.12.3 Filling the heating system
64
5
Commissioning
65
5.1 Control panel
65
5.1.1 Display functions
65
5.1.2 Symbols
65
5.2 Check points before commissioning
66
5.2.1 Preparing the boiler for commissioning
66
5.2.2 Gas circuit
66
5.2.3 Waterside connections
67
5.2.4 Electrical connections
67
5.3 Commissioning the boiler
67
5.3.1 High Altitude Applicatinos
67
5.4 Gas settings
68
5.4.1 Fuel conversion
68
5.4.2 Setting the air/gas ratio (Full load)
69
5.4.3 Setting the air/gas ratio (Part load)
70
5.5 Finalizing work
71
5.6 Reading out measured values
71
5.6.1 Reading the various current values
71
5.6.2 Readout from the hour counter and percentage of successful starts
72
5.6.3 Status and sub-status
73
5.7 Changing the settings
75
5.7.1 Parameter descriptions
75
5.7.2 Modification of the user-level parameters
77
Summary of Contents for MCA Pro 115
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