1. Location:
The circulator can be installed on the supply or return side of the boiler but for best system
performance, it should always pump away from the expansion tank. See piping diagrams in Figure 2 & Figure 3.
NOTE: Two shorter 1-1/4” x 7/16” flange bolts are provided with the circulator to
use on the discharge flange to prevent interference with the circulator casing.
CAUTION: Do not use flat rubber gaskets. Only use O-ring gaskets provided or leaks may result. Warranty will be void.
2. Mounting position:
Circulator must be mounted with the motor in the horizontal position. See Figure 4 & Figure 5
below for acceptable and unacceptable motor mounting orientations. See Figure 6 for Rotating Control Cover.
CAUTION: To reduce the possibility of noise transmission, be sure to add vibration dampeners to piping when mounting
circulator to wall or floor joists.
ATTENTION : Pour réduire la possibilité de transmission de bruit, veillez à ajouter des amortisseurs de vibration à
la tuyauterie lors du montage du circulateur sur des chevêtres de mur ou de plancher.
3. Filling the system:
Fill the system with tap water or a maximum of 50% propylene-glycol and water solution.
The system must be filled before operating the circulator. The bearings are water lubricated and should not
be allowed to operate dry. Filling the system will result in immediate lubrication of the bearings. It is always
good practice to flush a new system of foreign matter before starting the circulator.
WARNING: Risk of electric shock. To reduce the risk of electric shock, be certain that it is connected only to a properly
grounded, grounding-type receptacle. Follow all local electrical and plumbing codes.
AVERTISSEMENT : Risque de choc électrique. Pour réduire le risque de choc électrique, veillez à ce qu’elle soit raccordée uniquement
à un réceptacle de type mise à la terre proprement mis à la terre. Respectez tous les codes de plomberie et électriques locaux.
WARNING: Use supply wires suitable for 90°C.
AVERTISSEMENT : Employer des fils d’alimentation adeqauts pour 90°C.
WARNING: Disconnect power when servicing.
AVERTISSEMENT : Couper l’alimentation lors de l’entretien.
CAUTION: Use flexible conduit only. Not for use with rigid conduit.
ATTENTION : N’utiliser que du conduit flexible ; n’est pas fait pour du conduit rigide.
-4-
Figure 4 — Acceptable Mounting Positions
Flow
Flow
Flow
Flow
Figure 6 — Rotating Control Cover
Figure 5 — Unacceptable Mounting Positions
The 0026e is equipped
with a symmetrical control
cover connected to the
pump with a ribbon cable.
The cover can be removed,
rotated and repositioned
for best viewing and user
operation. It allows the
installer to mount the
circulator casing in any flow
direction, then rotate the
cover to the upright position.
Remove the 4 cover screws,
rotate cover to upright
position, reattach cover
with 4 screws.
