LegendWater Heater System Drawings Legend ExpandHide

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

100, 200, 300 & 400 Series

Have single power supply to boiler & boiler pump

101, 201, 301 & 401 Series

Require separate power supply for boiler pump TDR

102, 202, 302 & 402 Series
Require external pump starter coil & power supply for boiler pump

Boiler inlet temp protection
  • IF = Independent FPE
  • CF = Common FPE
  • CS = Circuit Setters
  • BP = Blend Pump
  • BI = Built In
  • XX = No Temp Protection

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Water Heater Systems Drawings

D160-190-S1-400-2V-BI
Water Heater Systems Drawings

D160-190-S1-400-1H-BI
Water Heater Systems Drawings

D160-190-S1-400-1V-BI
Water Heater Systems Drawings

D160-190-S1-400-2H-BI
Water Heater Systems Drawings

D160-190-S2-400-1H-BI
Water Heater Systems Drawings

D160-190-S2-400-1V-BI
Water Heater Systems Drawings

D160-190-S2-400-2H-BI
Water Heater Systems Drawings

D160-190-S2-400-2V-BI
Water Heater Systems Drawings

D140-160-S2-200-2V-IF
Water Heater Systems Drawings

D125-S2-201-2V-IF
Water Heater Systems Drawings

D125-S2-201-2H-IF
Water Heater Systems Drawings

D125-S2-201-1V-IF