Install Instructions

APPLICATION
1. Maximum operating pressure: 125 psi (862 kPa) on all “00” Series Circulators, 200 psi (1379 kPa) on all Load Match® Circulators.
2. Maximum water temperature not to exceed nameplate rating.
3. Cast iron circulators are to be used for closed loop systems. Bronze circulators are to be used for open loop, fresh water, or potable
water systems.
4. Taco Cartridge circulator pumps are for indoor use only – employer uniquement a l´interieur.
INSTALLATION
1. Mounting position – Circulator must be mounted with the motor in a horizontal
position. It may be mounted vertically with the motor up, provided that the system
pressure is at least 20 psi (138 kPa).
2. Rotating body – Body has an arrow on the front that indicates direction of flow. To
rotate body, remove the four body bolts, rotate body and replace bolts. Make sure
that the junction box is NOT located underneath the circulator. (The junction box
must NOT be located in the 6 o’clock position, as viewed from the motor end.)
3. Electrical connections – Observe all applicable codes when connecting to power
supply. The motor is impedance protected, and does not require overload protection.
The pump cannot run backwards.
WARNING: Do not use in swimming pool or spa areas; pump has not been investigated for this applica-
tion.
WARNING: In the event the retaining screws have been pulled out of the housing, DO NOT replace them.
Use of any other screw may short out the stator windings, creating a risk of electrical shock.
CAUTION: When installing electrical connections, do not apply mechanical loads to the capacitor box; oth-
erwise, retaining screws may be pulled out of the housing, making circulator unusable.
4. Fill system with tap water – 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.
5. Circulator operation – Operate the circulator for 5 minutes immediately after filling system to purge remaining air from the bearing
chamber. This is especially important when installing the circulator during the off-season.
CAUTION: 1. The addition of petroleum based fluids or certain chemical additives to systems utilizing
TACO equipment voids the warranty.
2. Use supply wires suitable for 90°C – ATTENTION: Employer des fils d´alimentation adequats
pour 90°C.
WARNING: To avoid electrical shock, disconnect the power supply to the circulator and the main electrical
unit.
REPLACING CARTRIDGE ASSEMBLY
1. Disconnect the electrical supply.
2. Reduce system pressure to 0 psi and allow system to return to room temperature. Isolate the circulator by closing the service valves
or draining the system.
3. Remove the body bolts and swing motor assembly away from the body.
4. Pull cartridge out of the motor housing.
5. Install replacement cartridge, making sure that the cover plate is between the cartridge flange and motor.
6. Make sure the replacement cartridge corresponds to the full circulator product number. A complete parts list is available from your
local plumbing supply wholesaler.
7. Reassemble the circulator using the new gasket and bolts supplied.
8. Follow the “Installation” procedure to start up the circulator
.
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CAUTION: Installations at higher elevations over 5000 feet must have higher fill pressure of 20 psi to
prevent pump cavitation and flashing. Premature failure may result. Adjust expansion tank
pressure to equal fill pressure. A larger size expansion tank may be required.