Thermo-Dynamics Boiler S85 - Boiler Piping

Appendix D
FLUE OUTLET
HYDRONIC SUPPLY
AIR SCOOP VENT
RELIEF VALVE
ALTERNATE RETURN
RATING DECAL
EXTENDED TANKLESS COIL
ASME TAG
PRIMARY CONTROL
HIGH SPEED
FLAME RETENTION
BURNER
INSPECTION PORT
HYDRONIC RETURN
ALTERNATE
LIMIT
AQUASTAT RELAY
ALTITUDE GAUGE
S
Series
FLO-CONTROL VALVE
AIR VENT
EXPANSION TANK
CIRCULATING
PUMP
DRAIN
GATE VALVE
RETURN
TEMPERING
VALVE
TANKLESS
COIL
W/T&A
SUPPLY
PRESSURE RED.
VALVE
GATE VALVE
CHECK
VALVE
DOMESTIC HI
TEMP WATER
WARM
WATER
DOMESTIC
COLD WATER
IN
Install Relief Valve in top tapping on rear of boiler.
Relief Valve discharge and drain valve piping should
be piped to a safe place of discharge.
Figure 3. Boiler Piping