Low Water
Cut Off
(if required by
local code)
Pressure Relief Valve
(supplied with boiler)
Air separator
System
Supply
Expansion
tank
54
CH System Common Components Diagram
Fill valve with
pressure gauge
Pressure Gauge
Primary-Secondary
Heating Kit
Backflow
preventer
Ball valve
Rinnai I-Series Condensing Boiler Combi Manual
Dirt Trap
System
Return