CALEFFI AngleMix 520, 520519A, 520516A, 520519AC, 520516AC Series Manual
AngleMix™ Thermostatic mixing valve
NA10618
www.caleffi.com
© Copyright 2018 Caleffi
Function
The Caleffi AngleMix™ 520 series thermostatic mixing valve is used
in systems producing domestic hot water and easily mounts to the
top of water heaters. The mixed temperature outlet is inline with
the hot water inlet, facilitating trouble-free connection and reducing
space required for installation. The AngleMix maintains the desired
output temperature of the mixed water supplied at a constant set
value compensating for both temperature and pressure fluctuations
of the incoming hot and cold water. The mixing valve also features a
thermal shut-off function that operates in the event of a cold water
supply failure at the inlet. Also available as body only, for a wide
variety of separately-ordered end connections, the angle style body
design offers improved fluid dynamics for better performance and
reduces installation labor and materials, eliminating a piping elbow
in typical installations.
The valve has been specifically certified to ASSE 1017 and Low
Lead Plumbing Law by ICC-ES.
Product range
5205__A series: Adjustable three-way thermostatic mixing valve with mixed outlet temperature gauge
and angle body............................................................connections ¾” press and sweat union
5205__AC series: Adjustable three-way thermostatic mixing valve with mixed outlet temperature gauge,
angle body with inlet port check valves............................connections ¾” press and sweat union
520051A: Adjustable three-way thermostatic mixing valve, angle style body only for field installed
connection fittings and temperature gauge, order separately.........connections 1” male union
Technical specication
Materials
-Valve body: DZR low-lead brass
-Shutter, seats and slide guides:
PSU
-Springs: stainless steel
-Seals: EPDM
-Adjustment knob: ABS
Performance
Suitable fluids: water
Setting range: 95–150° F (35–65° C)
Tolerance: ±3° F (±2° C)
Max. working pressure (static): 150 psi (10 bar)
Max. working pressure (dynamic): 75 psi (5 bar)
Max. hot water inlet temperature: 195°F (90°C)
Max. inlet pressure ratio (H/C or C/H) for optimal
performance: 2:1
Min. temperature difference between hot
water inlet and mixed water outlet for optimal
performance: 18°F(10°C)
Min. flow to ensure optimal performance:
0.5 gpm (2 L/min)
Mixed outlet temperature gauge:
2” diameter
Scale from 30—210º F
Certifications:
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.
520 Series
1
SAFETY INSTRUCTION
This safety alert symbol will be used in this manual to draw attention to safety related
instructions. When used, the safety symbol means ATTENTION! BECOME ALERT! YOUR
SAFETY IS INVOLVED! FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT
IN A SAFETY HAZARD.
WARNING: This product can expose you to chemicals including lead, which
is known to the State of California to cause cancer and birth defects or other
reproductive harm. For more information go to www.P65Warnings.ca.gov.
CAUTION: All work must be preformed by qualified personnel trained in the
proper application, installation, and maintenance of systems in accordance
with all applicable codes and ordinances.
CAUTION: If the thermostatic mixing valve is not installed, commissioned
and maintained properly, according to the instructions contained in this
manual, it may not operate correctly and may endanger the user.
CAUTION: Make sure that all the connecting pipework is water tight.
CAUTION: When making the water connections, make sure that the pipwork
connecting the AngleMix thermostatic mixing valve is not mechanically
overstressed. Over time this could cause breakages, with consequent water
losses which, in turn, could cause harm to property and/or people.
CAUTION: Water temperatures higher than 100ºF (38ºC) can be dangerous.
During the installation, commissioning and maintenance of the AngleMix
thermostatic mixing valve, take the necessary precautions to ensure that such
temperatures do not endanger people.
CAUTION: To prevent any damage which will cause the electronic mixing
valve to not operate correctly, treat highly aggressive water before entering
the thermostatic mixing valve. Be sure water hardness is less than 10
grains.
CAUTION: If installed in an ASSE 1017 application, check valves shall be
used.
LEAVE THIS MANUAL WITH THE USER.
2
CONSIGNE DE SÉCURITÉ
Ce symbole d'avertissement servira dans ce manuel à attirer l'attention sur la sécurité concernant
instructions. Lorsqu'il est utilisé, ce symbole signifie.
ATTENTION! DEVENEZ ALERTE ! VOTRE SÉCURITÉ EST EN JEU ! NE PAS SUIVRE CES
INSTRUCTIONS PEUT PROVOQUER UN RISQUE DE SECURITE.
AVERTISSEMENT:
plomb, qui est connu dans l’État de Californie pour causer le cancer, dommages à la
naissance ou autre. Pour plus d’informations rendez-vous www.P65Warnings.ca.gov.
ATTENTION: Tous les travaux doivent être effectués par du personnel qualifié
formé à la bonne application, installation et maintenance des systèmes
conformément aux codes et règlements locaux.
ATTENTION: Si le réducteur de pression, termostatico regolabile, n'est pas installé,
mis en service et entretenu correctement, selon les instructions contenues dans ce
manuel, il peut ne pas fonctionner correctement et peut mettre en danger l'utilisateur.
ATTENTION: S'assurer que tous les raccordements sont étanches.
ATTENTION: Lorsque vous effectuez les raccordements d'eau, assurez-
vous que la tuyauterie reliant le AngleMix termostatico regolabile n'est pas
mécaniquement des overstressed. Au fil du temps, ceci pourrait causer des
ruptures, avec pour consequence des pertes en eau qui, à leur tour, peuvent
causer des dommages à la propriété et/ou les gens.
ATTENTION: Les températures de l'eau supérieure à 100°F (38°C) peut
être dangereux. Au cours de l'installation, mise en service et l'entretien
de le réducteur de pression, le AngleMix termostatico regolabile, prendre les
precautions nécessaires afin de s'assurer que de tells températures ne
compromettent pas les gens.
Ce produit peut vous exposer à des produits chimiques comme le
ATTENTION: Pour prévenir tout dommage qui provoque le mitigeur
électronique à ne pas fonctionner correctement, le traitement de l’eau très
agressive avant d’entrer dans la termostatico regolabile. Assurez-vous que la
dureté de l’eau est inférieure à 10 grains.
ATTENTION: S’il est installé dans un pays de ASSE 1017 application, vérifiez les
robinets doivent être utilisés.
LAISSEZ CE MANUEL AVEC L’UTILISATEUR
3
Operating principle
MIXED
Kv = 1.7
(psi) (bar)
0.001
0.002
0.003
0.005
Cv = 2.0
0.004
The thermostatic mixing valve mixes the hot
and cold water at the inlets to maintain constant
mixed water at the desired set temperature. A
thermostatic sensor (1) is fully immersed in
the mixed water outlet passage (2) which,
as it expands or contracts, continuously
establishes the correct proportion of hot and
cold water entering the valve. The regulation
of these flows is by means of a piston (3)
sliding in a cylinder between the hot and cold
water passages. This controls the passage of
hot (4) or cold (5) water at the inlet. If the inlet
temperature or pressure changes, the internal
element automatically reacts to restore the set
temperature at the outlet. The AngleMix 520
series point of distribution mixing valve is an
angled configuration for easy installation to
most water heaters for direct mounting to the
top pipe connections.
Flow curve
161
115
46
23
11.5
9.2
6.9
4.6
2.3
1.15
0.92
0.69
0.46
0.23
0.115
0.092
0.069
0.046
0.023
.05
0
0.02
1
.
.2
0
0
0.05
0.5
0.1
0.2
2
1
4
3
HOT
5
70
50
20
10
0
2
1
0.5
5
10
20
10
50
50
2
70
100
140
190
5
4
3
2
1
0.5
0.4
0.3
0.2
0.1
0.05
0.04
0.03
0.02
0.01
)
gpm
G (l/min) (
5.0
2.0
1.0
0.5
0.4
0.3
0.2
0.1
0.05
0.04
0.03
0.02
0.01
COLD
4
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