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Typical Variable Speed Applications:
• Zone Valves
• Panel Radiation with
Thermostatic Valves
• Radiant Loops with
Actuators
- Varies speed to
maintain proportional
or constant pressure
differential (∆P)
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 and Figure 3.
2.
Mounting position: Circulator must be mounted with the motor in the horizontal position. See diagrams below for
acceptable motor mounting orientations.
CAUTION: Do not use flat rubber gaskets. Only use O-ring gaskets provided or leaks may result. Warranty will be void.
ACCEPTABLE MOTOR MOUNTING POSITIONS
Figure 4:
Spin
casing
change
flow
direction.
Integral Flow Check (IFC
) option - An IFC
®
and o-ring facing in, until it snaps into place. Before installing, press IFC plunger to be sure it moves freely. See diagram above.
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
startin 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, ground-
ing-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.
WARNING: SERVICING OF DOUBLE-INSULATED APPLIANCES. A double-insulated appliance is marked with one or more of the following:
The words "DOUBLE INSULATION" or "DOUBLE INSULATED" or the double insulation symbol (square within a square). In a double-in-
sulated appliance, two systems of insulation are provided instead of grounding. No grounding means is provided on a double-insulated
appliance, nor should a means for grounding be added. Servicing a double-insulated appliance requires extreme care and knowledge of
the system, and should be done by qualified service personnel. Replacement parts for a double-insulated appliance must be identical to
the parts they replace.
Across a Series
Loop System Using
Zone Valves
Across Multi-Zone
Radiant Manifolds
with Loop Actuators
Figure 5:
to
To rotate the pump casing, remove the 4 motor screws. When rotating pump casing position, DO NOT detach
motor housing from the casing. Damage to the casing O-ring and leakage may result. Simply spin casing to the
proper flow direction desired as shown in Figure 4 and Figure 5. Reattach the 4 screws (
Be sure motor is positioned correctly and is seated evenly to prevent leakage or damage to O-ring. Tighten motor
screws evenly to 25-38 in-lbs torque.
is included in the carton. If required, press IFC into machined discharge port with plunger
®
CAUTION: Use flexible conduit only. Not for use with rigid conduit.
M
M
M
M
M
Spin casing
to change
flow direction.
M
M
Outdoor
Sensor
B
B
C
C
A
A
Boiler
Sensor
X
CASING ROTATION
Figure 6:
Do not detach motor frame from pump
casing. Simply spin casing to the
proper flow direction.
⁄
" allens wrench required).
1
8
3
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