LAARS NeoTherm NTV (Sizes 150–850 MBTU/h) - Install and Operating Manual - Manual (Page 3)

N EO T HERM Boilers and Water Heaters
Section 9 -
First Start-Up and Adjustment Instructions
9.1 Filling the Boiler System ................................. 50
9.2 First Operation ................................................ 50
9.3 Adjusting the Differential and
Manifold Pressure ........................................... 51
9.4 Shutting Down the NeoTherm Unit ................. 53
9.5 Restarting the NeoTherm Unit ........................ 53
Section 10 -
Maintenance
10.1 System Maintenance ...................................... 54
10.2 Appliance Maintenance and Component
Description ...................................................... 54
10.3
Gas Conversion .............................................. 57
Section 11 -
Operating Details and Troubleshooting
11.1 Normal Startup and Initialization ..................... 58
11.2 Sequence of Operation .................................. 58
11.3 Modulation Control ......................................... 58
11.4 Pump Control .................................................. 58
11.5 Anti-Short-Cycle ............................................. 59
11.6 Temperature Sensors ..................................... 59
11.7 Diagnostics ..................................................... 59
11.8 Error Codes .................................................... 59
Section 12 -
Replacement Parts
13.1 General Information ........................................ 60
13.2 Parts List ......................................................... 60
Appendices -
Appendix A - Software Control Functions .................... 71
Appendix B - Error Messages...................................... 77
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