CALEFFI 521352A Guide

Product range
5213 series scald protection three-way thermostatic mixing valve.
Union thread NPT male connections, sizes ½”, ¾”,1”; Union sweat connection, sizes ½”, ¾”, 1”;
Union PEX crimp connections, sizes ½”, ¾”, 1”; Compression union, size 3/8”.
Scald Protection 3-Way Thermostatic Mixing Valve
Technical specifications
Materials:
- valve body and regulating spindle: low-lead brass (<0.25% lead content)
- Shutter, seat and slide guides: PPO
- Springs: stainless steel
- Seals: peroxide-cured EPDM
- cover: ABS
Temperature adjustment range: 85–120°F (29–50°C)
Temperature set: must be commissioned on site to achieve desired temperature
Temperature stability: ±3°F (±2°C)
Cold inlet temperature: Minimum 39°F (4°C); Maximum 85°F (29°C)
Hot inlet temperature: Minimum 120°F (49°C); Maximum 185°F (85°C)
Maximum operating differential pressure: Static: 150 psi (10 bar); Dynamic: 70 psi (5 bar)
Minimum operating differential pressure (dynamic): 1.5 psi (0.1 bar)
Maximum unbalanced dynamic supply (hot/cold or cold/hot): 6:1
Minimum temperature differential between hot water inlet
and mixed water outlet to ensure thermal shutoff function: 18°F (10°C)
Minimum temperature differential between mixed water outlet
and cold water inlet to ensure stable operation: 9°F (5°C)
Minimum flow rate for stable operation: 0.5 gpm (2 l/min)
Certifications:
1. ASSE 1070/CSA B125.3-2012, certified by ICC-ES, file PMG-1357.
2. NSF/ANSI 372-2011, Drinking Water Systems Components-Lead Content Reduction of Lead in
Drinking Water, California Health and Safety Code 116875 S.3874, Reduction of Lead in Drinking
Water Act, certified by ICC-ES, file PMG-1360.
1
© Copyright 2018 Caleffi 5213 Series
38531.08
www.caleffi.com
ASSE 1070
INSTALLATION AND COMMISSIONING MANUAL
Function
Thermostatic mixing valves are used in applications where the user
must be protected from the danger of scalding caused by hot water.
The Caleffi 5213 series provides water at a safe and usable
temperature in situations where the control of the temperature of the
water discharging from a terminal fitting is of the utmost importance,
i.e. within hospitals, schools, nursing homes, etc. The valve is
designed to prevent the flow of water discharging from the mixed
water outlet in the event of the failure of hot or cold supply. The Caleffi
5213 series is a high performance combination thermostatic and
pressure balanced mixing valve and is ASSE 1070 listed (temperature
can not exceed 120°F). The valve is complete with check valve at
both hot and cold inlets. Certified to ASSE 1070 and Low Lead Plumbing
Law by ICC-ES.

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
pipework connecting the thermostatic mixing valve is not mechanically
over-stressed. 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 100°F can be dangerous. During
the installation, commissioning and maintenance of the thermostatic mixing
valve, take the necessary precautions to ensure that such temperatures do
not endanger people.
Leave this manual for the user.
SAFETY INSTRUCTION
This safety alert symbol will be used in this manual to draw attention to safety related instructions.
When used, the safety alert symbol means ATTENTION! BECOME ALERT! YOUR SAFETY IS
INVOLVED! FAILURE TO FOLLOW THESE INSTRUCTIONS MAY RESULT IN A SAFETY
HAZARD.
CAUTION: All work must be performed by qualified personnel trained in the
proper application, installation, and maintenance of systems in accordance
with all applicable codes and ordinances.
2
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.
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.

ATTENTION: Lorsque vous effectuez les raccordements d'eau, assurez-vous
que la tuyauterie reliant le 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.
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.
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: 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 termostatico regolabile, prendre les precautions
nécessaires afin de s'assurer que de tells températures ne compromettent
pas les gens.
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 vanne de le termostatico regolabile.
CONSIGNE DE SÉCURITÉ
LAISSEZ CE MANUEL AVEC L’UTILISATEUR
3
AVERTISSEMENT: Ce produit peut vous exposer à des produits chimiques comme le 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.

Thermal shutoff
In the event of a failure of either the hot or cold supply, the piston will shut off, stopping water
discharging from the mixed water outlet. The Caleffi 5213 series thermostatic mixing requires a
minimum temperature differential from hot inlet to mixed water outlet of 18°F (10°C) to ensure the
correct operation of the thermal shutoff feature.
COLD
HOT
MIXED
4
Sweat version
Operating principle
The thermostatic mixing valve mixes hot and cold water in such a way as to maintain constant set
temperature of the the mixed water at the outlet. A thermostatic element is fully immersed into the
mixed water. This element then contracts or expands causing movement of the piston, closing
either the hot or cold inlets, regulating the flow rates entering the valve. If there are variations of
temperature or pressure at the inlets, the internal element automatically reacts to restore the original
temperature setting. In the event of a failure of either the hot or cold supply, the piston will shut off,
stopping water discharging from the mixed water outlet.
NPT version
COLD
HOT
MIXED
sweat connections
version
COLD
HOT
MIXED
connections
Compression version PEX crimp version

Flow curve
10
0.1
2 5
1
0.2
0.3
0.5
20 50
p (psi)
G
(l/min) (
gpm
)
10
2
3
5
20
0.1
1
0.2
0.3
0.5
(psi) (bar )
10
2
3
5
20
1 0.5
10
2 5 20
0.01
0.1
0.02
0.03
0.05
1.0
0.2
0.3
0.5
4
0.4 0.4
4
0.04
0.4
0.3
Δ
Use
The Caleffi 5213 series is a thermostatic mixing valve suitable for single or multiple point of
use applications in accordance with installation rules and indications specified in ASSE 1070
standards.
The system must be sized taking into account the current legislation with regard to the nominal
flow rate of each outlet.
1/2”, 3/4”, 1” • Cv= 2 • Kv=1.7 (m3/h)
5
Flow should never exceed standards for pipe size and materials.

9118
7
6
3
5
4
1
2
10
4a
12
13
NPT male
Sweat
PEX crimp
1 Protective cap
2 Temperature spindle locking nut
3 Upper body
4 O-ring seal
4a O-ring seal
5 Thermostatic element
6 Flow conveyor
7 Lower spring
8 Valve body
9 Union washer, quantity 3 per valve
10 Union nut, quantity 3 per valve
11 Inlet port male tailpiece with integral
check valve, quantity 2 per valve
12 Inlet port conic lter, quantity 2 per valve
13 Outlet port tailpiece, quantity 1 per valve
Compression
Compression
Exploded diagram
6

7
Replacement ttings
Complete kit Valve size Connection Union Nut Tailpiece Washer
consult Caleffi
3/8inch
compression
F61008/C
F0000718(2)
F50055
NA20640
½ inch
NPT male R31981
NA20640C (1) 59893A(1)
NA20649 Sweat NA10002(1)
NA20649C 59904A
NA20647 PEX crimp F0000492
NA20647C NA10484(1)
NA20650
¾ inch
NPT male 31901A
NA20650C 59840A(1)
NA20659 Sweat NA10003
NA20659C 59905A(1)
NA20657 PEX crimp F0000520
NA20657C NA10485(1)
NA20660
1 inch
NPT male
incl. w/ tailpc
59817A
NA20660C 59894A(1)
NA20669 Sweat 59834A
NA20669C 59906A(1)
NA20667 PEX crimp F61008/C F0000521
NA20667C NA10486(1)
(1) C = check valve included in tailpiece. Use in inlets.
(2) Check valve not included: source separately check valve code NA10479.
Replacement parts
Replacement check
valves for 5213 series
thermostatic mixing
valves.
NA10405............ check valve for PEX fittings
R39204... check valve for sweat, NPT fittings
NA10479.................check valve for 521333A
Conical inlet filter
for 5213 series
thermostatic mixing
valves.
F52429..........................................conical filter

Installation
The following instructions must be read prior to the installation of a Caleffi 5213 series thermostatic mixing
valve. The installer should also be aware of his responsibility and duty of care to ensure that all aspects
of the installation comply with current regulations and legislation.
The Caleffi 5213 series should be installed using the appropriate standard, code of practice and legislation
applicable to each state and following the details in this manual. The Caleffi 5213 series must be installed
by a licensed plumber.
Prior to the installation of the Caleffi 5213 series valve, the system must be checked to ensure that the
system operating conditions fall within the recommended operating range of the valve, i.e.
verify supply temperatures, supply pressures, risk assessments, etc.
The supply system into which the Caleffi 5213 series is to be installed must be thoroughly flushed and
cleaned to remove any debris which may accumulate during the installation. Failure to remove any debris
will affect the performance and the manufacturer’s warranty on the product. In areas that are subject to
high levels of aggressive water, provision must be made to treat the water prior to it entering the valve.
The valve can be installed in any position, whether vertical or horizontal. It is essential that the access to
the valve is not obstructed for future maintenance that may be required to the valve or associated fittings.
It is essential that when the installation is designed and/or installed, all current legislation is noted, e.g. the
maximum distance from the outlet of the valve to any terminal fitting.
The connecting hot and cold water supplies must be connected to the valve strictly in accordance with
the indications on the body of the valve. The inlets of the valves are clearly marked with the letter H (Hot)
and C (Cold). The outlet is marked with the word MIX.
Where one or both the incoming supply pressures are excessive, a Caleffi pressure reducing valve should
be installed to reduce the pressure(s) within the limits.
Any thermostatic mixing valve must be installed with isolating valves, line strainers and check valves at
both the inlets. Isolating valves are required so that the water supply to the valve can be isolated in the
event that servicing is required. Strainers are required to prevent debris from entering the valve. Check
valves are required to both hot and cold inlets to prevent cross-connection.
The Caleffi 5213 series is supplied complete with the check valves at the hot and cold inlets. The check
valve of the sweat version must be dismantled from the tail piece before soldering and then reassembled.
To ensure that the performance of the Caleffi 5213 series valve is maintained (in the event of cold water
failure), the temperature of the hot water supply at the point of entry to the valve must be a minimum of
18°F higher than the set mixed water discharge temperature.
The piping to and from the valve must not be used to support the weight of the valve.
If the valve is not installed correctly, it will not function correctly and may put the user in danger.
8
·
Installation Tip
Scan to view
5213 MixCal
TM

Installation diagram
Pressure
reducing valve
(if required)
Isolating
valve Isolating valve
Strainer
& check
valve
Strainer
& check
valve
T
Pressure
reducing valve
(if required)
Temperature
limiting valve
(if required)
HOT SUPPLY COLD SUPPLY
MIXED
OUTLET
MIX
MIX
HOT
COLD
MIX
MIX
HOT
COLD
9
Point of use
Multiple use
Multiple use with sensor faucet

10
DC
A
A
F
E
D
B B
C
A
Sweat PEX
crimp Compression
Male NPT
Code A B C D E F Wt
(lb)
521342A ½" NPT male 2 13/16"5 11/16 " 4 5/16"3" 1 15/16"2.0
521352A ¾" NPT male 2 13/16"5 11/16 " 4 5/16"3" 1 15/16"2.0
521362A 1" NPT male 2 15/16"5 7/8"5 3/16"3 ¼" 1 15/16"2.0
521347A ½" PEX crimp 3" 6" 5½" 3 5/8"1 15/16"2.0
521357A ¾" PEX crimp 3" 6" 5½" 3 5/8"1 15/16"2.0
521367A 1" PEX crimp 3 1/16"6 1/8"5 9/16"3 11/16"1 15/16"2.0
521349A ½" sweat 2 11/16" 5 7/16 " 4 5/8"2 11/16 " 1 15/16"2.0
521359A ¾" sweat 2 7/8"5 ¾" 4 13/16 " 2 15/16 " 115/16 " 2.0
521369A 1" sweat 3 1/8"5 5/16"5 3/8"3 ¼" 1 15/16"2.0
521333A 3/8"
compression 2 11/16"5 3/8"5 3/16"3 5/16 " 1 15/16"2.0
Dimensions