Install Instructions

ManualsBrandsCaleffi ManualsAir Eliminators2-1/2" Flanged 546 Series DISCALDIRT Commercial Steel Air and Dirt Separator

Function

Air and dirt separators are used to continuously remove

the air and debris contained in the hydronic circuits

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 microbubble level. The DISCALDIRT

air and dirt

separator also removes any solid impurities in the system.

The impurities collect at the bottom of the device and can

be ﬂushed through the integal drain shut-off valve. The

circulation of fully de-aerated and cleaned water enables

the equipment to operate under optimum conditions, free

from noise, corrosion, or mechanical damage.

The DISCALDIRTMAG

air and dirt separator with

added magnetic ring (brass and steel 5461 series) or

probe (steel 546 and NA546 series) removes both

ferrous and non-ferrous impurities continuously,

featuring powerful removable magnets that remove

up to 100% of the ferrous impurities, including magnetite, that can form in a hydronic system. The

DISCALDIRTMAG

has 2½ times the ferrous impurities removal performance of a standard air

and dirt separator. Insulation shells are available separately for field installation on the

brass DISCALDIRT

and DISCALDIRTMAG

These items are designed for use in closed hydronic systems. Do not use in plumbing applications. These items

do not meet the low-lead plumbing standards of U.S. and Canada.

Product range

54609 series DISCALDIRT

air and dirt separator in brass, connections 1" and 1-¼" sweat

546016A DISCALDIRT

air and dirt separator in brass, connection 1" NPT male

546 series DISCALDIRT

air and dirt separator in steel, connections 2"-6" ANSI flanged

5461 series DISCALDIRTMAG

air and dirt separator with magnet in brass,

connections 1", 1-¼" sweat, 1" NPT male

5461 series DISCALDIRTMAG

air and dirt separator with magnet in steel,

connections 1-½" and 2" press union, sweat union and NPT female union

NA546 series DISCALDIRT

air and dirt separator in steel, ASME & CRN,

connections 2½"-14" ANSI flanged

NA546050T DISCALDIRT

air and dirt separator in steel, ASME & CRN,

connections 2" NPT threaded

NA546_M series DISCALDIRTMAG

air and dirt separator with magnet in steel,

ASME & CRN, connections 2½"-14" ANSI ﬂanged,

2" NPT threaded.

DISCALDIRT

- DISCALDIRTMAG

air and dirt separator

Installation, commissioning and servicing instructions

38557.07

546 - 5461 - NA546 - NA546_M Series

www.caleffi.com

Installation Tip

Scan to view

546,5461 & NA546 AIR & DIRT SEPARATOR

Summary of content (8 pages)

PAGE 1
38557.07 www.caleffi.com DISCALDIRT® - DISCALDIRTMAG® air and dirt separator 546 - 5461 - NA546 - NA546_M Series © Copyright 2018 Caleffi Installation, commissioning and servicing instructions Function Air and dirt separators are used to continuously remove the air and debris contained in the hydronic circuits 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 microbubble level.
PAGE 2
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. 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.
PAGE 3
Performance 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) Air separation efficiency: 100% removal to microbubble level Particle separation capacity: to 5 µm (0.
PAGE 4
Operating principle Microbubble air separation The air and dirt separator uses the combined action of several physical principles. The active part is the internal element (1) and consists of a glass-reinforced nylon mesh for the brass DISCALDIRT ® and DISCALDIRTMAG®, or for the steel DISCALDIRT ® and DISCALDIRTMAG® an assembly of concentric metal mesh (stainless steel) surfaces.
PAGE 5
Microparticle dirt separation The DISCALDIRT ® and DISCALDIRTMAG® dirt removing element separates and collects any impurities present in the system. Impurities in the fluid upon striking the surfaces of the DISCALDIRT® and DISCALDIRTMAG®’s internal element (1), get separated and drop to the bottom of the body in the dirt collection chamber (2) where they collect. In addition, the large internal volume slows down the velocity of the fluid thus helping, by gravity, to separate the particles it contains.
PAGE 6
14” 8” (ft of water) 10” 12” 6” 5” 4” 3” 2 1/2” 5461 546 NA546 2” 2” 1 1/2” 1” ΔP (ft of water) 2 1 1/4” Hydraulic characteristics 1.8 1.6 1.4 (kPa) 2 6 1.8 1.6 1.4 5 4.5 4 3.5 1.2 1.2 1 1 0.6 0.6 0.5 0.5 0.3 0.3 0.25 0.25 0.2 0.2 0.12 0.12 0.1 0.1 0.06 0.06 0.05 0.05 0.035 0.03 0.035 0.03 0.025 0.025 0.02 0.02 0.9 0.8 0.7 3 0.9 0.8 0.7 0.45 0.4 0.35 2.5 2 0.45 0.4 0.35 0.18 0.16 0.14 0.18 0.16 0.14 0.09 0.08 0.07 0.09 0.08 0.
PAGE 7
1 2 3 4 6 Installation DISCALDIRT® and DISCALDIRTMAG® units may be used in both heating and cooling systems, to ensure continuous air and dirt elimination. The units should be installed after the boiler and on the pump suction side, as these are the points where the formation of micro-bubbles is greatest. DISCALDIRT ® and DISCALDIRTMAG® air and dirt separators must be installed vertically.
PAGE 8
1 1 2 2 3 3 The drain valve (code NA39753 - 1 inch or code NA59600 4- 2 inch) installed on the drain pipe at the 4 base of the steel DISCALDIRT ® and DISCALDIRTMAG® air and dirt separator (8) can be used to remove any debris that has settled at the bottom of the separator, even while the system is in operation. To inspect the internal element of brass DISCALDIRT ® and DISCALDIRTMAG® air and dirt separators, unscrew the large dirt separation chamber (6) with a 26 mm hexagon wrench.