User Guide

Function

The Caleffi SEP4™ combination air, hydraulic, dirt and

magnetic separator is a device that, incorporates high

performance air and magnetic and non-magnetic dirt removal

functionality into the hydraulic separation function which

makes the primary and secondary circuits connected to it

hydraulically independent, and can be used on hot or chilled

water systems. The SEP4™ features an HDPE internal

element that combines to continuously and automatically

eliminate air micro-bubbles with the simultaneous removal of

dirt particles as tiny as 5 microns. The air discharge capacity

is very high, with the capability of automatically removing all

the air present in the system down to the micro-bubble level.

The 4 in 1 high performance functionality of the SEP4™ saves

system installation and maintenance costs as there is no need

to include separate air and dirt separators. In addition to

removing sand and rust impurities, the added magnetic ring

provides effective capture of ferrous particles.

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 SEP4™ 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.

SEP4™ 4-in-1 Air, Hydraulic, Dirt and Magnetic Separator

38804

www.caleffi.com

CALEFFI

5495 Series

Installation, commissioning and servicing instructions

Product range

54950 series SEP4™ air, hydraulic, dirt and magnetic separator in steel with union connections,

drain and insulation: connections 1", 1-1/4", 1-1/2", 2" NPT female union

54959 series SEP4™ air, hydraulic, dirt and magnetic separator in steel with union connections,

drain and insulation: connections 1", 1-1/4", 1-1/2", 2" sweat union

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CALEFFI www.caleffi.
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CAUTION: Make sure that all the connecting pipework is water tight. CAUTION: When making the water connections, make sure that the 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 (38°C) can be dangerous.
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Hydraulic characteristics The SEP4™ should be sized according to the maximum flow rate at the inlet. The selected value is the primary circuit flow rate, or secondary circuit flow rate, whichever is largest. Size GPM m3/h l/s Gallons liters Installation 1” 11 2.5 0.7 0.5 2.0 1 1/4” 18 4.0 1.1 0.7 2.6 1 1/2” 26 6.0 1.6 1.3 5.0 2” 37 8.5 2.3 3.5 13.2 The SEP4™ should be installed only by qualified personnel in accordance with current local codes and legislation.
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Procedure for installation and insulation assembly 1. Remove the two black head covers at the ends. 2. Open the two side sections. 3. Install the separator in the system. 4. For cooling applications, consider using a silicon caulk or sealant by spreading a thin layer of sealant over surfaces A and B. Wait for the solvent to evaporate (approx. 10 minutes). Note that once the sealant dries it may be difficult to remove the insulation shell in the future without destroying portions of the insulation. 5.