Caleffi 573, DISCALDIRT, 546 User Manual

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CALEFFI

DISCALDIRT®air and dirt separator

Installation, commissioning and servicing instructions

Function

Air and dirt separators are used to continuously remove the
air and debris contained in the hydronic curcuits of heating
and cooling systems. The air discharge of these devices is
very high. They are capable of automatically removing all of
the air present in the system down to the micro-bubble level.
The DISCALDIRT
solid impurities in the system. The impurities collect at the
bottom of the device and can be removed through the drain
pipe for the steel versions, to which a separately sourced
drain valve can be mounted, or drain shut-off valve for the
brass version. The circulation of fully de-aerated and
cleaned water enables the equipment to operate under
optimum conditions, free from noise, corrosion, localized or
mechancial damage.

38557.02

546 Series

®

air and dirt separator also separates any

Product range

Series 546 DISCALDIRT air and dirt separator in brass Sizes 3/4” and 1” sweat union

Series 546 DISCALDIRT air and dirt separator in brass Size 1” NPT male union

Series 546 DISCALDIRT air and dirt separator in steel with flanged connections Sizes 2”–6” ANSI

Series 546 DISCALDIRT air and dirt separator in brass Size 1-1/4" sweat

Series NA546 DISCALDIRT air and dirt separator in steel with flanged connections

Series NA546 DISCALDIRT air and dirt separator in steel with threaded connections

designed and built in accordance with Section VIII, Division 1 of the
ASME Boiler and Pressure Vessel Code and tagged and registered
with the National Board of Boiler and Pressure Vessel Inspector;
CRN registered Sizes 2”–12” ANSI

designed and built in accordance with Section VIII, Division 1 of the
ASME Boiler and Pressure Vessel Code and tagged and registered
with the National Board of Boiler and Pressure Vessel Inspector;
CRN registered Sizes 2”–4”

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Technical specification

Brass DiscalDirt

Materials: - Body, Dirt separation chamber and Automatic air vent body: brass

Suitable fluids: water, glycol solution
Max percentage of glycol: 50%
Max working pressure: 150 psi (10 bar)
Temperature range: 32–230°F (0–110°C)
Particle separation capacity: to 5 µm (0.2 mil)

Connections: - Main: 3/4” and 1” sweat union; 1” NPT male union; 1 1/4” sweat

Steel DiscalDirt

Materials: - Body: epoxy resin painted steel

Suitable fluids: water, glycol solution
Max percentage of glycol: 50%
Max working pressure: 150 psi (10 bar)
Temperature range: 32–250°F (0–120°C)
Particle separation capacity: to 5 µm (0.2 mil)

Connections: - Flanged (ASME & CRN Registered): 2”–12” ANSI B16.5 150 CLASS RF

- Internal element: glass reinforced nylon, PA66GF30

- Float: PP

- Float guide and Stem: brass

- Float lever and Spring: stainless steel

- Seals: EPDM

- Drain shut-off valve: brass

- Drain shut-off valve: hose connection

- Automatic air vent body: brass

- Internal element: stainless steel

- Float: PP

- Float guide and Stem: brass

- Float lever and Spring: stainless steel

- Seals: EPDM

- Side drain shufoff valve: brass

- Flanged: 2”–6” ANSI B16.5 150 CLASS RF

- Threaded (ASME and CRN Registered): 2”–4”

- Drain pipe: 2”–6” : 1” NPT male
8”–12” : 2” NPT male

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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:

commissioned and maintained properly, according to the instructions contained
in this manual, it may not operte 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 DISCALDIRT air and dirt separator 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 100°F (38°C) can be
dangerous. During the installation, commissioning and maintenance of the
DISCALDIRT air and dirt separator, take the necessary precautions to
ensure that such Temperatures do not endanger people.

If the DISCALDIRT air and dirt separator is not installed,

Leave this manual for the user.

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