CALEFFI DIRTMAG NA5453 Series User guide

Function
In heating and air conditioning control systems, the
circulation of water containing impurities may result
in rapid wear and damage to components such as
pumps and control valves. It also causes
blockages in heat exchangers, heating elements
and pipes, resulting in lower thermal efficiency
within the system.
The dirt separator separates off these dirt particles
which are mainly made up of particles of sand and
rust, circulating within the closed circuit system.
These particles are collected in a large chamber,
requiring infrequent cleaning, which requires simply
removing the magnet collar and opening the large
drain valve while the system is running. This device
is capable of efficiently removing particles to a very
small size, with very low pressure head loss.
The DIRTMAG®magnetic dirt separator removes
both magnetic and non-magnetic particles
continuously, featuring a powerful removable
external magnet around the body. The body of
the NA5453 series separator is made of glass
reinforced nylon specifically designed for use in
heating and cooling systems. It also is especially
versatile as it can be installed on either horizontal or
vertical piping with the rotating brass base mount.
Product range
NA54530 series DIRTMAG®dirt separator with magnet for horizontal and vertical pipes
............................................................................................connections ¾” & 1” NPT male union
NA54539 series DIRTMAG®dirt separator with magnet for horizontal and vertical pipes
..................................................................................................connections ¾” & 1” sweat union
DIRTMAG®dirt separator
Installation, commissioning and servicing instructions
NA10322
www.caleffi.com
CALEFFI
1
© Copyright 2013 Caleffi NA5453 Series

Technical specifications
Materials
Body: glass reinforced nylon PA66G30
Dirt separator cover: glass reinforced nylon PA66G30
Top plug: brass EN 12164 CW614N
Drain screw: brass EN 12164 CW614N
Tee pipe fitting: brass EN 1982 CB 753S
Locking nut for tee pipe fitting: brass EN 12420 CW617N
Internal element: HDPE
Hydraulic seals: EPDM
Drain valve: brass EN 12165 CW617N
CAUTION: If the DIRTMAG
®
separator 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 DIRTMAG
®
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 (38°C) can be dangerous.
During the installation, commissioning and maintenance of the DIRTMAG
®
separator, 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

Performance
Suitable Fluids: water, glycol solutions
Max. percentage of glycol: 30%
Max. working pressure: 45 psi (3 bar)
Working temperature range: 32–195°F (0-90°C)
Magnet: neodymium rare earth
Connections
Main connections: 3/4” and 1” NPT male union
3/4” and 1” sweat union
Drain valve: hose connection
Hydraulic characteristics
3
(kPa)
0.18
0.16
0.14
0.12
0.1
0.2
0.45
0.4
0.35
0.3
0.9
0.8
0.7
0.6
0.5
1
3.5
3
2.5
2
4
1.8
1.6
1.4
1.2
0.03
0.14
0.28
0.56
1.39
l/s
0
.07
.16
.33
.67
1.33
.05
.11
.10
.27
.20
.53
.40
1
.84
ft. of hd psi
3/4 - 1”
.25
.15
.10
.07
.40
.05
.03
.17
.58
3
5
10 15
22 20
2 1
gpm
0.06 0.07 0.08 0.11 0.13
0.17 0.19 0.22 0.25
0.33 0.39 0.44 0.50
0.69 0.83 1.11 1.25
.023
.02
.14
Connections
Cv
3/4”
12
1”
12.2

4
Installation
The magnetic dirt separator should be installed in accordance with the flow direction indicated by
the arrow on the tee fitting and the return circuit upstream of the boiler.
The magnetic dirt separator should always be installed upstream of the pump and always with its
body in vertical position.

Maintenance
To perform maintenance, simply
unscrew the top cover using the
provided key and remove the attached
internal element inside the collection
chamber.
Draining off dirt
Remove the magnetic collar (1) and
drain the collected dirt and ferrous
particles. This can be done while
the system is running, using the key
provided (2).
5
WARNING: The symbol shown on
the removable ring indicates the
presence of magnets that generate a
strong magnetic field. This could cause
damages to electronic devices kept in
its proximity.
1. Remove the magnetic ring
containing the two magnets, that
during operation attracted the
ferrous particles.
2. Flush out the ferrous and nonferrous
debris by turning the handle to open
the drain valve.
3. When finished, replace the magnetic
ring and close the drain valve.
12

Caleffi North America, Inc.
3883 W. Milwaukee Road
Milwaukee, WI 53208
T: 414.238.2360 F: 414.238.2366
CALEFFI
6
Safety
The magnetic dirt separator must be installed by a licensed plumber in accordance with
national regulations and/or relevant local requirements.
Make sure that all connecting joints are water tight.
When making pipe connections take care not to damage the thread in the body of the valve by over
tightening. Take care not to apply too much force to the body of the valve when making pipe connections.
Water temperatures greater than 120°F may cause serious burns. When installing, using and
maintaining dirt separators take appropriate measure to ensure that these temperatures do not cause
harm to persons.
Leave this manual at the service of users for their use