Rinnai M Series Installation And Operation Manual page 8

All items are field-supplied unless otherwise noted.
Supply to CH System
Return from CH System
Primary-Secondary Heating Kit
CH Pressure Relief Valve (supplied
with boiler)
CH Supply
8
Central
Heating
Supply
Central
Gas
Heating
Return
Condensate Drain
Gas Supply
CH Return
Central Heating Temperature
Pressure Gauge (supplied with
boiler)
Gas Shut Off Valve
Boiler Pump
Rinnai M-Series Condensing Boiler Solo Manual