3
Verify contents received................................................2
Table of contents...........................................................3
Physical Data.................................................................4
1 - Important Information.............................................6
2 - Introduction.............................................................7
3 - Component Listing ...................................................8
4 - Locating Boiler.......................................................10
5 - Combustion Air And Vent Piping.............................12
5.1 General.................................................................12
5.2 Removal of Existing Boiler From Common Vent System
.................................................................................12
.............................................................13
5.4 Approved Venting Materials ....................................14
5.5 Vent Termination....................................................14
5.6 Coaxial Venting Instructions ....................................15
5.7 Coaxial Vent Screw Placement ................................15
5.8 Twin Pipe Systems..................................................17
5.9 Securing Twin Pipe Polypropylene Venting .............. 18
5.10 (3" /80 mm Only) Flexible Vent System ............. 21
5.11 Condensate Piping................................................23
6 - Hydronic Piping......................................................24
6.1 General.................................................................24
6.2 Special Conditions..................................................24
6.3 Safety Relief Valve and Air Vent ...............................25
6.4 Trim Piping ............................................................25
6.5 System Piping........................................................25
........................27
6.7 Central Heating System ..........................................29
6.8 Domestic Hot Water Mode .......................................29
6.9 Frost Protection Mode .............................................29
6.10 Pump Protection...................................................29
7 - Gas Supply Piping ..................................................30
7.1 General.................................................................30
7.2 Leak Check Gas Piping............................................31
...........................................................31
8 - Electrical Connections............................................32
8.1 General.................................................................32
8.2 Install Room Thermostat.........................................32
8.3 Electrical Connections .............................................32
8.4 Access To Connection Block .....................................33
8.5 Main Supply Connection..........................................33
8.6 Install Room Thermostat.........................................34
8.7 Optional Electrical Connections.................................34
8.8 Indirect Storage Tank..............................................35
9 - Start Up Procedure.................................................36
9.1 Central Heating System Connections - Heat Only..... 36
9.2 Central Heating System Connections - Combi.......... 36
9.3 System Start Up.....................................................37
9.4 Fill Condensate Trap with Water ...............................37
9.5 Control Panel.........................................................38
9.6 Prior to Commissioning ..........................................39
9.7 Commissioning For The First Time:...........................39
9.8 Automatic Calibration Function.................................39
9.9 Manual Calibration Function:....................................40
9.10 De-Aeration Function ............................................40
9.11 Commission Set Up (Gas) - Changing The Type Of .......
Gas............................................................................40
9.12 Chimney Sweep Function (CO2 Adjust) ................ 41
9.13 Combustion Adjustment Function (CO2%)............ 41
9.14 Check Firing Rate .................................................41
9.15 Description Of Parameters: Factory Settings ......... 42
9.16 Adjusting Maximum Heating Power.........................44
10 - Operating instructions .........................................45
10.1 Testing For Gas Leaks And Purging The Gas Supply 45
10.2 Boiler Operation ...................................................45
10.3 Central Heating Mode............................................45
10.4 Domestic Hot Water Mode .....................................45
10.5 Frost Protection....................................................45
10.6 Pump..................................................................45
10.7 Low Water Pressure Sensor (Internal) ................ 45
11 - General Maintenance and Cleaning.......................46
11.1 Beginning of Each Heating Season..........................46
11.2 Maintenance And Routine Servicing.........................47
11.3 Component Replacement And Cleaning ................ 47
11.4 Draining the Boiler................................................48
11.5 Draining the Heating Circuit...................................48
11.6 Hydraulic Unit (DHW)............................................49
11.7 Cleaning The Cold Water Filter ...............................49
11.8 Final Commissioning .............................................49
11.9 Final Assembly.....................................................49
11.10 User Information ................................................50
11.11 Safety Flue Thermostat - DO NOT disable this safety
device. .......................................................................50
11.12 Flue Pressure Switch- DO NOT disable this safety
device. .......................................................................50
11.13 Replacement Parts..............................................50
12 - Ratings And Capacities.........................................51
12.1 Ratings and Capacity ............................................51
..........................51
12.3 High Altitude Ratings and Capacity .........................51
12.4 High Altitude Chart ...............................................51
13 - Trouble Shooting..................................................52
13.1 Error Messages And Resetting The Boiler.............. 52
13.2 Anomalies Table for the Installer - Use this table to
report the anomaly values. ...........................................54
14 - Glossary...............................................................55
Appendix A - Wiring Diagrams.....................................57
Appendix A - Wiring Diagrams.....................................58
TABLE OF CONTENTS
240012565 REV A, [05/15/2019]
