Instructions / Assembly

Page 2 of 2 Rev B
Instruction Sheet
IS-AM08-072
12/19/16
REPLACING CATRIDGE ASSEMBLY
1. Disconnect power.
2. Reduce system pressure to zero and let fluid cool down.
3. Close shut off valves. If there are no shut off valves, drain system.
4. Remove pump housing bolts and pull out motor assembly.
5. Remove cartridge. Insert screw drivers between motor housing and square plate and force cartridge out.
6. Insert new cartridge. Cartridge consists of two parts. (On AMR models there is on O-ring between the two parts.)
7. Install new motor assembly using new O-ring gasket (two gaskets in case of AMR). Make sure gasket is properly placed.
8. Follow installation procedure to start up circulator.
CLEANING CARTRIDGE ASSEMBLY
AquaMotion pumps are specifically designed to prevent solid particles from entering the bearing / rotor chamber of the cartridge.
However, in systems heavily contaminated by dirt, construction debris, etc., particles may enter the chamber on initial filling of the
system and on rare occasions cause rotor blockage.
The AquaMotion pumps are designed to permit cleaning the interior of the cartridge and de-blocking. To do so, separate the two parts
(refer to #6 under “Replacing Cartridge Assembly”) by grabbing the impeller and cartridge sleeve with opposite hands and pulling
apart. Clean (rinse) the two parts and re-assemble.
Follow the procedure under “Replacing Cartridge Assembly.”
It is also recommended to flush the system.
REPLACEMENT OF BUILT-IN CHECK VALVE (BICV)
All models with a “V” in the model number are equipped with a check valve installed in the outlet of the circulator casing. To replace
the check valve, proceed as follows:
1. Disconnect power.
2. Reduce system pressure to zero and let fluid cool down.
3. Remove flange bolts and swing pump away from the pipes. (It is not necessary to break electrical connection in most cases.)
4. Remove the check valve with a rocking / twisting motion, using nose pliers.
5. Clean out casing in check valve area.
6. Apply a film of liquid soap to O-ring of new check valve.
7. Insert new valve with O-ring leading. Press down firmly until flush with casing.
8. Re-install circulator, using new flange gaskets, if necessary.
9. Follow points 6 and 7 under Installation and Start-Up.
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