Install Instructions
Table Of Contents
- Cover
- TABLE OF CONTENTS
- SECTION 1 GENERAL INFORMATION
- SECTION 2 LOCATING THE BOILER
- SECTION 3 AIR AND VENTING
- SECTION 4 GAS CONNECTIONS
- SECTION 5 PUMP REQUIREMENTS
- SECTION 6 WATERCONNECTIONS
- SECTION 7 ELECTRICAL AND WIRING DIAGRAMS
- SECTION 8 THE DIGITAL DASHBOARD
- SECTION 9 INITIAL STARTUP
- SECTION 10 MAINTENANCE
- SECTION 11 OPERATING DETAILS AND TROUBLESHOOTING
- SECTION 12 REPLACEMENT PARTS
Page 22
JX
Check
Valve
Valves
Valves
Indirect
Tank
Air Scoop
Pump
Zone
Pumps
(must be sized
properly)
Valves
Check
Valves
Low Loss
Header
w/ Pump
Low Loss Header is standard on models 125, 150, and 200 and Optional for models 50, 75, and 100.
Low Loss Header is standard on models 125, 150, and 200 and Optional for models 50, 75, and 100.
Figure 13. Low Loss Header
with Zone Pumps and DHW
Typical Plumbing Diagrams (continued)
KEY: PUMP CHECK VALVE VALVE ZONE VALVE UNION AUTO AIR BLEEDER
JX
Check
Valve
Valves
Valves
Indirect
Tank
Air Scoop
Pump
Pump
Zone
Valves
Valves
Low Loss
Header
w/ Pump
Figure 14. Low Loss Header
with Zone Valves and DHW
LAARS Heating Systems