Install Instructions
Table Of Contents
- Cover
- Table of Contents
- Table of Contents, Page 2
- Section 1 -GENERAL INFORMATION
- Section 2 -LOCATING THE APPLIANCE
- Section 3 -VENTING AND COMBUSTION AIR
- Section 4 -GAS SUPPLY AND PIPING
- Section 5 -PUMP REQUIREMENTS
- Section 6 -WATER CONNECTIONS -NTH BOILER
- Section 7 -ELECTRICAL AND WIRING DIAGRAMS
- Section 8 -THE USER INTERFACE
- 8.1 About the User Interface
- 8.2 Navigating the User Interface
- 8.3 The Home Display
- 8.4 Customizing your Home Display
- 8.5 Entering/Changing Control Settings
- 8.6 Quick Start
- Configuration and Setup
- 8.7 24 VAC Transformerwith Integral Circuit Breaker
- 8.8 Hydronic Heating Demand
- 8.9 Anti-Short-Cycle (ASC)
- 8.10 Outdoor Air Temperature Sensor
- 8.11 Outdoor Reset
- 8.12 Warm Weather Shutdown
- 8.13 Domestic Hot Water
- 8.14 About Lead Lag Operation
- 8.15 Adjusting CO2
- Section 9 -FIRST START-UP AND ADJUSTMENTINSTRUCTIONS
- Section 10 -MAINTENANCE
- Section 11 -OPERATING DETAILS AND TROUBLESHOOTING
- Section 12 -REPLACEMENT PARTS
- Appendix A -SOFTWARE CONTROL FUNCTIONS. Next 5 pages
- Appendix B -ERROR MESSAGES. Next 8 pages
- Back Cover. Contact information. Product and Service Videos
Page 2
LAARS Heating Systems
Figure 1. -LocationofComponents,Sizes80–105
Figure 2. -LocationofComponents,Sizes150-210
EXHAUST VENT CONNECTION
GAS CONNECTION
USER CONTROL
INTERFACE
HEAT EXCHANGER
GAS VALVE
VENTURI
AIR/ GAS
BLOWER
PRESSURE RELIEF VALVE
WATER INLET
WATER OUTLET
AIR INLET CONNECTION
DRAIN VALVE
CONDENSATE TRAP
AIR TRANSITION
EXHAUST VENT CONNECTION
GAS CONNECTION
AIR PRESSURE SWITCH
USER CONTROL
INTERFACE
HEAT EXCHANGER
GAS VALVE
VENTURI
AIR/ GAS
BLOWER
PRESSURE RELIEF VALVE
WATER INLET
WATER OUTLET
AIR INLET CONNECTION
DRAIN VALVE
CONDENSATE TRAP
AIR TRANSITION
ON / OFF SWITCH
ON / OFF SWITCH