Brochure

45
1213
5
THERMOSTATIC MANIFOLD MIXING STATIONS
1
2
3
4
L/MIN
1
2
3
4
L/MIN
1
2
3
4
L/MIN
WC
SOGGIORNO
CAMERA
CALEFFI
WC
SOGGIORNO
CAMERA
CALEFFI
Supply manifold
equipped with
flow meters and
balancing valves.
Return manifold
equipped with
shut-off valves.
CALEFFI
CALEFFI
End fittings with automatic
air vent with hygroscopic
cap and drain cock.
SYSTEM
FLOW
SYSTEM
RETURN
BOILER
FLOW
BOILER
RETURN
1
8
5
7
6
2
3
4
Item Description Symbol
1 Circulation pump
UPS 15-58 pictured
2 Top elbow with supply temper-
ature and pressure gauge
3 Purge valve
4 Supply temperature and
pressure gauge
5 Return temperature gauge
6 Primary circuit shut-off valves
7 Primary circuit hydraulic
separator with check valve
8 Thermostatic three-way mixing
valve with built-in sensor
T
8
SYSTEM
FLOW
SYSTEM
RETURN
BOILER
FLOW
BOILER
RETURN
7
6
5
1
6
T
3
MANIFOLD MIXING STATIONS
For eld assembly to a Calef radiant manifold assembly.
Grundfos UPS 15—58 three-speed pump or Alpha 25-55U.
1" NPT male adapters included to connect to manifold.
¾" NPT female riser connections.
Includes built-in hydraulic separator.
Thermostatic mixing
station kit
Code Description Lbs USD
NA17256HE Thermostatic mixing, Alpha 25-55U 4.1 1,037.00
NA17256 Thermostatic mixing, UPS 15-58U 4.1 814.00
NA16002 Alpha 25-55U replacement pump 2.3 445.00
NA10038 UPS 15-58U replacement pump 2.3 219.00
F19153 Replacement mixing valve 1.6 247.00
The 172 series manifold mixing station is designed for use in manifold-based
hydronic distribution systems. The manifold mixing station incorporates a
thermostatic actuator with built-in sensor which keeps the ow temperature at
a constant set value for use in low temperature systems such as oor radiant
panels. A removable primary circuit hydraulic separator with check valve is
also supplied. The hydraulic separator is essential when there is a primary
circuit circulation pump and when radiator circuits or fan coils are controlled by
Function
Characteristic components / hydraulic diagram
thermostatic or thermo-electric valves. When connecting to a Calef
HYDROLINK
TM
or hydraulic separator without a primary pump, the
hydraulic separator can be removed and the manifold mixing station can be
connected directly. The 172 station, like the TWISTFLOW
TM
Series 668S1
distribution manifolds, can be congured with 3 to 13 circuit outlets offering
similar benets with built-in sight ow meters/adjustable balancing valves
and optional TWISTOP
TM
thermo-electric zone actuators.