Pensotti Heatline Quatech Series
11
Flow Check
Drain Valve
Piped to
Floor
(or Code)
Relief Valve
Boiler
Feed
Piped to
Code
Purge Valve
Air Separator
Air Vent
Heating
Circulator
SU
PP
L
Y
RET
U
R
N
TO
SYST
EM
Control Valve
in
By-Pass Line
Domestic
Circulator
Burner
BOILER
INDIRECT
HOT
WATER
HEATER
Figure 3
Figure 3 shows a typical installation with domestic hot water supplied by an indirect heater and
with a by-pass loop installed.
The control valve should be either a needle or throttling valve.