MI
X
3
2
4
SUPPLY
HOT
COLD
MIX
BOILER
SUPPLY
MI
X
3
2
4
MI
X
3
2
4
Safety relief valve
Check valve
Isolation valve
Expansion vessel
Filter
Pump
*
*
*
*
*
*
WATER
HEATER
WATER
HEATER
CA
LE
FF
I
CA
LE
FF
I
CALEFFI
CALEFFI
10
0
8
6
4
2
10
0
8
6
4
2
CALEFFI
CALEFFI
10
0
8
6
4
2
10
0
8
6
4
2
10
0
8
6
4
2
10
0
8
6
4
2
Radiant panels heating system
MI
X
3
2
4
SUPPLY
HOT
COLD
MIX
BOILER
SUPPLY
MI
X
3
2
4
MI
X
3
2
4
Safety relief valve
Check valve
Isolation valve
Expansion vessel
Filter
Pump
*
*
*
*
*
*
WATER
HEATER
WATER
HEATER
CA
LE
FF
I
CA
LE
FF
I
CALEFFI
CALEFFI
10
0
8
6
4
2
10
0
8
6
4
2
CALEFFI
CALEFFI
10
0
8
6
4
2
10
0
8
6
4
2
10
0
8
6
4
2
10
0
8
6
4
2
*MixCal series 521 thermostatic mixing valves with inlet check valves, “AC” models, can be used
instead of separately installed check valves.
**Refer to principle of operation on page 8.
SUPPLY
MIX
3
2
4
WATER
HEATER
Safety relief valve
Check valve
Isolation valve
Expansion vessel
Filter
Pump
Globe valve
Domestic hot water system
without recirculation
Domestic hot water system
with recirculation**
CALEFFI
3
2
4
COLD
HOT
HOT/RED
COLD/BLUE
MIX
MI
X
3
2
4
SUPPLY
HOT
COLD
MIX
BOILER
SUPPLY
MI
X
3
2
4
MI
X
3
2
4
Safety relief valve
Check valve
Isolation valve
Expansion vessel
Filter
Pump
*
*
*
*
*
*
WATER
HEATER
WATER
HEATER
CA
LE
FF
I
CA
LE
FF
I
CALEFFI
CALEFFI
10
0
8
6
4
2
10
0
8
6
4
2
CALEFFI
CALEFFI
10
0
8
6
4
2
10
0
8
6
4
2
10
0
8
6
4
2
10
0
8
6
4
2
Application Diagrams
Temperature adjustment
The temperature is set to the required value by means of the knob with a graduated scale, on the
top of the valve.
Pos. Min.
1
2
3
4
5
6
7
Max.
T (°F)
81
90
100
111
120
127
136
145
152
T (°C)
27
32
38
44
49
53
58
63
67
with: T
HOT
= 155°F (68°C), with: T
cold
= 55°F (13°C), P = 43 psi (13 bar)
7
2
1
