Intertek FT Series - Single Zone Heating and Indirect DHW Tank

Page 44
Plumbing Guidelines (continued)
4.16.4 Single zone heating and indirect DHW tank
(FACTORY
WIRED)
LLH
BASEBD. RADIATION
MAKE UP
WATER
INDIRECT H-X
A
B
SINGLE ZONE HEATING WITH INDIRECT TANK
BACKFLOW
PREVENTER
EXPANSION
TANK
PURGE
VALVE
AIR
ELIMINATOR
CHECK
VALVE
ISOLATION
VALVE
REDUCING
PRESSURE
VALVE
RELIEF
PRESSURE
VALVE
AIR
VENT
CIRCULATOR
E
B
O
I
L
R
Circulation pump
Check valve
Zone valve
Pressure
reducing valve
Drain valve
Gate valve
Backflow preventer
Pressure Relief Valve
Expansion tank
Air separator
(Diaphragm-type)
Automatic air vent
Anti-scald rated
Mixing Valve
Check Valve
Shut-off valve
Circulation pump
with built-in IFC
1
. This piping diagram is meant to show system piping
concept only. Installer is responsible for all equipment
and detailing required by local codes.
2
. The minimum size of the piping to the Indirect Tank Heat
Exchanger is ¾” inside diameter.
3
. Install a minimum of 12 diameters of straight pipe
upstream of all circulators.
4
. Manufacturer strongly recommends the use of an
anti-scald mixing valve at the domestic hot water (DHW)
outlet from the Indirect Tank to reduce potential for
scalding. Check with local codes.
(FACTORY
WIRED)
LLH
BASEBD. RADIATION
MAKE UP
WATER
INDIRECT H-X
A
B
SINGLE ZONE HEATING WITH INDIRECT TANK
BACKFLOW
PREVENTER
EXPANSION
TANK
PURGE
VALVE
AIR
ELIMINATOR
CHECK
VALVE
ISOLATION
VALVE
REDUCING
PRESSURE
VALVE
RELIEF
PRESSURE
VALVE
AIR
VENT
CIRCULATOR
E
B
O
I
L
R