LAARS NeoTherm NTV1000 - Install and Operating Manual - Manual (Page 3)

LAARS Heating Systems
Section 1 - General Information ........................................ 1
1.1 Introduction ...................................................... 1
1.2 About the NeoTherm Control System .............. 1
1.3 Safety Notes ..................................................... 3
1.4 Model Identification .........................................3
1.5 Unit Overview .................................................. 3
1.6 Warranty ........................................................... 4
1.7 Dimensions ....................................................... 5
1.8 Unpacking ........................................................ 5
Section 2 - Locating the Unit ............................................. 6
2.1 Locating the Unit .............................................. 6
2.2 Locating Unit for Correct Vent Distance
from Outside Wall or Roof Termination ........... 6
Section 3 - Venting and Combustion Air ........................... 7
3.1 Combustion Air ................................................ 7
3.1.1 Combustion Air From Room ............................ 7
3.1.2 Ducted Combustion Air .................................... 8
3.2 Venting ............................................................. 9
3.2.1 Common Venting .............................................. 9
3.2.2 Condensate Drain Trap ..................................... 9
3.2.3 Venting Requirements Unique to Canada ...... 10
3.3 Locating the Vent and Combustion Air
Terminals ........................................................ 10
3.3.1 Side Wall Vent Terminal ................................. 10
3.3.2 Side Wall Combustion Air Terminal .............. 12
3.3.3 Vertical Vent Terminal .................................... 13
3.3.4 Vertical Combustion Air Terminal.................. 13
3.3.5 Installations in the Commonwealth of
Massachusetts ................................................. 13
3.4 Common Vent Test ......................................... 13
Section 4 - Gas Supply and Piping .................................. 15
4.1 Gas Supply and Piping ................................... 15
Section 5 - Pump Requirements ....................................... 17
5.1 NeoTherm Boiler Flow and Head
Requirements .................................................. 17
5.2 NeoTherm Water Heater Flow and Head
Requirements .................................................. 17
Section 6 – Water Connections ........................................ 18
Section 6A - NTH Units ................................................... 18
6A.1 NTH System Piping: Hot Supply
Connections .................................................... 18
6A.2 NTH Cold Water Make-Up ............................ 18
6A.3 NTH Freeze Protection ................................... 18
6A.4 NTH Suggested Piping Schematics ................ 19
Section 6B - NTV Units ................................................... 25
6B.1 NTV Water Quality ........................................ 25
6B.2 NTV Piping Requirements ............................. 25
6B.3 NTV Cold Water Make-Up ............................ 26
6B.4 NTV Freeze Protection ................................... 26
6B.5 NTV Suggested Piping Schematics ................ 26
6B.6 NTV Suggested Pumps .................................. 26
Section 7 - Electrical Connections ................................... 28
7.1 Main Power .................................................... 28
7.2 Pump Connections .......................................... 28
7.3 24 VAC Transformer with Integral
Circuit Breaker ............................................... 30
7.4 Signal Connections ......................................... 30
7.5 Optional Field Connections ............................ 30
7.6 Ladder and Wiring Diagrams ......................... 30
Section 8 – Using the Controls
on the NeoTherm 1000 ................................... 34
8.1 Controls and Indicators on the Front
of the Unit ....................................................... 34
8.2 Using the Operator Interface .......................... 34
8.3 While Operating – Checking Lead/Lag
Operating Information .................................... 36
8.4 Checking Lead/Lag Details ............................ 37
8.5 While Operating - Checking Individual
Parameters ...................................................... 37
8.6 Checking Individual Details ........................... 38
8.7 Configuring Parameters on Individual
Controllers ...................................................... 39
8.8 Verification Process for Safety-Related
Parameters ...................................................... 41
8.9 Cleaning the Touchscreen............................... 43
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