CALEFFI MixCal 521 Series Installation And Commissioning Manual

MixCal™ Adjustable three-way thermostatic mixing valve
© Copyright 2017 Caleffi
INSTALLATION AND COMMISSIONING MANUAL
Function
The Caleffi MixCal™ three-way thermostatic mixing valve is used in
systems producing domestic hot water or in hydronic and radiant
heating systems. With the unique mixing chamber design, MixCal™
produces very stable mixed water temperture as inlet temperatures
and pressures vary. Scale formation is minimized with anti-scale
polymer sliding surfaces, preventing siezing or erratic mixed
temperatures. O-ring seals made from durable peroxide-cured EPDM
resist wear from common water treatment additives such as chlorine
and chloramines.
Product range
521A Series Three-way thermostatic mixing valve:
"C" models include inlet check valves. "419, 519, 619" models include
outlet gauge adapter. Connections: union thread NPT male, sizes ½",
¾", 1"; union sweat, sizes ½", ¾", 1"; union press, sizes ½" , ¾", 1";
union PEX crimp, sizes ½" , ¾", 1".
Technical Characteristics
Materials: -Body:
-Shutter, seats and sliding guides:
-Springs:
-Seals:
Suitable fluids:
Setting range (outlet temperature):
Tolerance:
Max. working pressure (static):
Max. operating differential pressure (dynamic):
Max. recommended differential pressure:
Max. hot water inlet temperature:
Max. inlet pressure ratio (H/C or C/H) for optimum performance:
Min. temperature difference between hot water inlet and mixed
water outlet for optimum performance:
Min. flow rate to ensure optimal performance:
Lay length, hot to cold inlet:
Certified to: 1. ASSE 1017/CSA B125.3, certified by ICC-ES, file
PMG-1357
2. NSF/ANSI 372-2011, Drinking Water System
Components-Lead Content Reduction of Lead in
Drinking Water Act, California Health and Safety
Code 116875 S.3874, Reduction of Lead in
Drinking Water Act, certified by ICC-ES, file
PMG-1360.
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low-lead brass (<0.25% lead content)
peroxide-cured EPDM
water, 30% max glycol solution
85–150°F (30–65°C)
1.0 GPM (3.8 L/min)
(½" & ¾" press connection)
(1" press connection)
38476.10
521 series
PPO
stainless steel
±3°F (±2°C)
200 psi (14 bar)
75 psi (5 bar)
20 psi (1.5 bar)
200°F (93°C)
2:1
27ºF (15ºC)
3 / "
5
8
4 / "
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