Water Heater System Drawings Legend Hide
Type of System
- PS = Primary-Secondary System
- VP = Variable Volume Primary System
- CV = Constant Volume
Boiler Type
Manufacturer Reference Guide- 100 Series = Atmospheric Boilers
- 200 Series = Sealed Comb. / Fan Assist Forced Draft Boilers
- 300 Series = Econimizer Condensing Boilers
- 400 Series = Fully Condensing Boilers
Boiler inlet temp protection
- IF = Independent FPE
- CF = Common FPE
- CS = Circuit Setters
- BP = Blend Pump
- BI = Built In
- XX = No Temp Protection
