3
TABLE OF CONTENTS
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
...........................................................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
............ 24
5.10 (3" / 80 Mm Only) Flexible Vent System .......... 27
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
.......................34
6.7 Manufacturer Recommendation - Strainer
............ 35
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
...........................................................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
9 - Start Up Procedure
.................................................47
9.1 Central Heating System Connections - Heat Only
.. 47
9.2 Central Heating System Connections - Combi ....... 48
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
2%) ........... 53
9.14 Check Firing Rate ................................................53
9.15 Parameter Settings
.............................................54
9.16 Description Of Parameters: Factory Settings
....... 55
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)
.............. 58
11 - General Maintenance And Cleaning ......................59
11.1 Beginning Of Each Heating Season
........................59
11.2 Maintenance And Routine Servicing
.......................60
11.3 Component Replacement And Cleaning
.............. 60
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
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
........................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
............ 67
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
240013360
REV A [07/01/2021]
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