Install Instructions
INSTALLATION INSTRUCTIONS
1.  The Taco® 4900 Series™ Magnetic Dirt Separator should 
  be installed on the return side of the boiler or terminal 
  heating (or cooling) unit as shown in Figure 1.
2.  The Taco magnetic dirt separator should be installed in 
  a horizontal line in a vertical (or upright) position   
  (See Figure 1) with the blowdown valve pointed down 
  toward the oor. It will not operate properly if installed 
  at an angle, sideways, or upside down.
3.  The Taco magnetic dirt separator may be installed   
  so that the ow direction is either RIGHT to LEFT   
  or LEFT to RIGHT.
4.  The maximum allowable velocity within the     
  Taco magnetic dirt separator is 5 ft/sec.
5.  The Taco magnetic dirt separator is intended for   
  installations lled with 100% water or approved   
  glycol solutions 
(Do Not Exceed 50% Glycol)
  for hydronic heating or cooling systems.     
6. 
Install the blow down valve (provided in the box)   
  into the 1/2” tapered threads of the separator.     
  Use common plumbing practices for 1/2” tapered   
  threads to prevent a joint leak once the system is lled.   
  NOTE: This is an ISO 7/1 thread, do not     
  install an NPT threaded valve.
NOTE: Power o the circulator before removing magnetic ring.
7.  To blow out the impurities collected in the magnetic   
  dirt separator remove the magnetic ring (Figure 2),   
  place a bucket under the valve (Figure 3), open the   
  blow down valve for 3-5 seconds and then close it.   
  Replace the magnetic ring (Figure 4).
8.  Please leave these instructions with the end user.
9.  Taco magnetic dirt separators should be     
  installed by qualied professionals.
Figure 1
WARNING: System uid may be dangerously hot and 
could cause serious injury. Allow the system uid to 
cool before installing this Magnetic Dirt Separator
or opening the blow down valve.
CAUTION: Follow all local codes when installing 
this product. Consult local authorities for any 
code requirements.
Figure 3
Figure 2
Figure 4
102-562
SUPERSEDES: NEW  EFFECTIVE: December 5, 2018 
Plant ID No. 001-5015
Instruction Sheet
3/4” - 2" 4900 Series
™
Magnetic Dirt Separator


