Horizon
Page 7
Tapping
NPT
Tankless Coil
¾"
Tridicator
¼"
Hydronic Return
1¼"
Hydronic Supply
1¼"
Aquastat Well
¾"
Relief Valve Fitting
¾"
Alternate Hydronic Return
1¼"
Figure 3.
Supply Pipe
Vent
Relief Valve
Tridicator ½"
N.P.T.
Aquastat Relay
L8124A ¾" N.P.T.
Wiring Conduit
to Circulator
Oil Burner
Draft Regulator
and Smoke Pipe
(not supplied)
Tankless Domestic
Hot Water Coil ½" N.P.T.
Wiring Conduit to
Burner
Flame Observation
Glass
OUT OF
PRODUCTION