Install Instructions

Instruction Sheet
Horizontal Circulators
Nos. 110 thru 120
102-052
SUPERSEDES: 102-052 February 1, 1986 EFFECTIVE: April 15, 2001
DOITONCE. DOITRIGHT.
TACO, INC., 1160 Cranston Street, Cranston, RI 02920 Telephone: [phone] FAX: [phone].
TACO (Canada), Ltd., 6180 Ordan Drive, Mississauga, Ontario L5T 2B3. Telephone: [phone]. FAX: [phone].
Visit our web site at: http://www.taco-hvac.com
Printed in USA
Copyright 2001
TACO, Inc.
Plant I.D. 001-318
APPLICATION:
1. Maximum recommended working pressure is 125 psi (862 kPa).
2. Maximum water temperature must not exceed 240°F.
3. Cast iron circulators should be used for closed systems only.
4. Bronze circulators must be used in open or fresh water systems and potable water systems.
INSTALLATION:
1. Mounting position – Circulators must be mounted with the motor in a horizontal position.
2. Rotating casing – Casing has an arrow on the front which indicates direction of flow. To rotate casing, remove the
casing bolts, rotate casing and replace bolts. Make sure gasket is properly located before tightening bolts.
3. Electrical connections – Observe all applicable codes when connecting to power supply. The motors do not require
overload protection.
4. Fill system – It is good practice to flush a new system of foreign matter before starting the circulator.
TO REPLACE MOTORS:
1. Disconnect wiring.
2. Loosen the two set screws at pump end of spring coupling, remove bolts between bracket and motor and separate.
3. Loosen other set screw of coupling and remove coupling from old motor.
4. Slide coupler with single set screw over new motor shaft and tighten against flat surface of shaft.
5. Place new motor assembly into bracket and replace bolts.
6. Extend pump end of spring coupling over impeller shaft
3
⁄
16
" and tighten both set screws. If impeller and shaft move
into body during this operation, water will flow from weep hole in bracket. If this does occur, extend spring coupler a
little more or until water stops flowing. CAUTION: UNDER NO CIRCUMSTANCES SHOULD THE WEEP HOLE BE
PLUGGED.
7. Rewire motor.
TO REPLACE SPRING COUPLING:
Follow same procedure outlined above.
LUBRICATING INSTRUCTIONS:
Re-oil pump and motor annually with SAE No. 30 oil.
CAUTION: The addition of certain chemical additives to systems utilizing TACO equipment voids the warranty.