Caleffi 5213 User Manual

ASSE 1070

www.caleffi.com

CALEFFI

38531.04

Scald Protection Three-Way Thermostatic Mixing Valve

© Cop yri ght 2 0 10 Ca l ef f i

5213 Series

Installation, commissioning and servicing instructions

Function

Scald Protection Three-Way 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 thermostatic
mixing valve and is ASSE 1070 listed.

The valve is complete with check valve at both hot and cold inlets.

Product range

5213 series scald protection three-way thermostatic mixing valve.
Union thread NPT male connections, sizes 1/2”, 3/4”,1”;
Union sweat connection, size 1/2”, 3/4”, 1”.

Technical characteristics

Materials: - Valve body and Regulating Spindle: low-lead brass (<0.25% Lead content)

Temperature adjustment range: 85–120°F (29–49°C)
Temperature set: must be commissioned on site to achieve desired temperature
Temperature control: ±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 working pressure: Static 140 psi (10 bar); Dynamic 70 psi (5 bar)
Minimum working 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: 1 gpm (4 l/min)

Certified to: ASSE 1070 Listed
Lead Plumbing Law Compliance: (0.25% Max. weighted average lead content)

- Lead Plumbing Law Certified by IAPMO R&T

- Internal shutter: PPO

- Sealing elements: EPDM

- Cover: ABS

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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.

CAUTION: If the thermostatic mixer 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 mixer

connecting pipework 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 mixer, take the necessary precautions to ensure that such
temperatures do not endanger people.

CAUTION: In the case of highly aggressive water, arrangements must be
made to treat the water before it enters the thermostatic mixer, in
accordance with current legislation. Otherwise the mixer may be
damaged and will not operate correctly.

Leave this manual for the user.

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Operating Principle

COLD

HOT

MIXED

A thermostatic mixing valve mixes hot and cold water in such a way as to maintain constant set
temperature of 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.

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 valve 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.

Sweat version

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Flow rate graph

10

0.1

2

5

1

0.2

0

.

3

0.

5

20

50

∆p (psi)

G (l/min) (

gpm

)

10

2

3

5

2

0

0

.

1

1

0

.

2

0

.

3

0.

5

(psi) (bar)

10

2

3

5

2

0

1

0.5

10

2

5

2

0

0.01

0

.

1

0

.

02

0

.

03

0

.

05

1

.

0

0

.2

0.3

0

.

5

4

0

.4 0.4

4

0.0

4

0

.4

0.3

1/2", 3/4", 1" • Cv= 2 • Kv=1.7 (m3/h)

Flow rate-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.

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