HT 1.330 VALVE PLACEMENTS
Be sure to use the supplied fiber gaskets
DO NOT OVER TIGHTEN FITTINGS!
Boiler Supply
Valve
Increase from
3/4” to 1-1/4”
Condensate
Drain
Increase from
5/8” to 3/4”
Gas Supply
Valve
3/4”
Boiler Return
Valve w/Screen
Increase from 3/4” to
1-1/4”
T&P Relief
Valve
This valve is
vertical 3/4”
Water Feed Inlet
Valve
1/2” with check-
valve
