Table Of Contents - UTICA BOILERS MAH-100 Manual

Verify Contents Received ...............................................2

Table Of Contents ..........................................................3

Physical Data.................................................................4
1 - Important Information .............................................6
2 - Introduction .............................................................7
2.3 Requirements For Commonwealth Of Massachusetts:
................................................................................ 7
2.4 Use Of Carbon Monoxide Monitor. ............................. 7
2.5 Designated Use ..................................................... 7
2.6 The Unit Must Not: ................................................. 7
2.7 Operational Features .............................................. 7
3 - Component Listing .................................................11
4 - Locating Boiler .......................................................14
4.1 Boiler Location Considerations ..............................14
4.2 Clearances ..........................................................15
4.3 Wall Mounting ......................................................16
5 - Combustion Air And Vent Piping .............................17
5.1 General ...............................................................17
5.2 Removal Of Existing Boiler From Common Vent System
...............................................................................18
5.3 Definitions ...........................................................18
5.4 Approved Venting Materials ...................................19
5.5 Vent Termination ..................................................19
5.6 Coaxial Venting Instructions ...................................21
5.7 Coaxial Vent Screw Placement ...............................22
5.8 Twin Pipe Systems ................................................23
5.9 Securing Twin Pipe Polypropylene Venting ............
5.10 (3" / 80 Mm Only) Flexible Vent System ..........
5.11 Condensate Piping ..............................................29
6 - Hydronic Piping ......................................................30
6.1 General ...............................................................30
6.2 Special Conditions ................................................31
6.3 Safety Relief Valve And Air Vent ..............................31
6.4 Trim Piping ..........................................................32
6.5 System Piping ......................................................32
6.6 External Optional Low Water Cut Off .......................34
6.7 Manufacturer Recommendation - Strainer ............
6.8 Central Heating System .........................................36
6.9 Domestic Hot Water Mode ......................................36
6.10 Frost Protection Mode ..........................................36
6.11 Pump Protection .................................................36
7 - Gas Supply Piping ..................................................37
7.1 General ...............................................................37
7.2 Gas Pipe Recommendations ...................................38
7.3 Leak Check Gas Piping ..........................................40
7.4 Gas Orifice ...........................................................40
8 - Electrical Connections ............................................41
8.1 General ...............................................................41
8.2 Install Room Thermostat ........................................41
8.3 Electrical Connections ............................................41
8.4 Access To Connection Block ....................................42
8.5 Main Supply Connection.........................................42
8.6 Install Room End Switch ........................................43
8.7 Optional Electrical Connections ...............................43
8.8 Indirect Storage Tank ............................................45
8.9 Management Of 0-10v Input ..................................45
TABLE OF CONTENTS
9 - Start Up Procedure .................................................47
9.1 Central Heating System Connections - Heat Only ..
9.2 Central Heating System Connections - Combi .......
9.3 System Start Up ...................................................49
9.4 Fill Condensate Trap With Water .............................49
9.5 Control Panel .......................................................50
9.6 Prior To Commissioning: ........................................51
9.7 Commissioning For The First Time: .........................51
9.8 Automatic Calibration Function ...............................51
9.9 Manual Calibration Function: ..................................52
9.10 De-Aeration Function ...........................................52
9.11 Commission Set Up (Gas) - Changing The Type Of Gas
...............................................................................52
9.12 Chimney Sweep Function ....................................53
9.13 Combustion Adjustment Function (Co
9.14 Check Firing Rate ................................................53
9.15 Parameter Settings .............................................54
9.16 Description Of Parameters: Factory Settings .......
9.17 Adjusting Maximum Heating Power ........................56
10 - Operating Instructions .........................................57
10.1 Testing For Gas Leaks And Purging The Gas Supply
...............................................................................57
10.2 Boiler Operation ..................................................57
10.3 Central Heating Mode ..........................................57
10.4 Domestic Hot Water Mode ....................................57
10.5 Frost Protection ..................................................58
10.6 Pump ................................................................58
10.7 Low Water Pressure Sensor (Internal) ..............
24
11 - General Maintenance And Cleaning ......................59
27
11.1 Beginning Of Each Heating Season ........................59
11.2 Maintenance And Routine Servicing .......................60
11.3 Component Replacement And Cleaning ..............
11.4 Draining The Boiler..............................................61
11.5 Draining The Heating Circuit .................................61
11.6 Hydraulic Unit (Dhw) ...........................................62
11.7 Cleaning The Cold Water Filter ..............................62
11.8 Final Commissioning ............................................62
11.9 Final Assembly ...................................................62
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11.10 User Information ...............................................63
11.11 Safety Flue Thermostat . ...................................... 63
11.12 Flue Pressure Switch (125-150 Only). ................ 63
11.13 Replacement Parts .............................................63
12 - Ratings And Capacities .........................................64
12.1 Ratings And Capacity ...........................................64
12.2 Domestic Hot Water Specifications ........................64
12.3 High Altitude Ratings ...........................................65
12.4 High Altitude Chart ..............................................65
13 - Trouble Shooting ..................................................67
13.1 Error Messages And Resetting The Boiler ............
13.2 Anomalies Table For The Installer - Use This Table To
Report The Anomaly Values. ........................................69
14 - Glossary ...............................................................70
Appendix A - Wiring Diagrams ............................... 72-77
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