Taco 1400 Series User manual

SYSTEMS MADE EASY®
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 2008
TACO, Inc.
LIMITED WARRANTY STATEMENT
Fig. 2: Exploded View of Pump
Taco, Inc. will repair or replace without charge
(at the company’s option) any product or part
which is proven defective under normal use
within three (3) years from the date of start-up or
three (3) years and six (6) months from date of
shipment (whichever occurs first).
In order to obtain service under this warranty, it
is the responsibility of the purchaser to promptly
notify the local Taco stocking distributor or Taco
in writing and promptly deliver the subject prod-
uct or part, delivery prepaid, to the stocking dis-
tributor. For assistance on warranty returns, the
purchaser may either contact the local Taco
stocking distributor or Taco. If the subject prod-
uct or part contains no defect as covered in this
warranty, the purchaser will be billed for parts
and labor charges in effect at time of factory
examination and repair.
Any Taco product or part not installed or operat-
ed in conformity with Taco instructions or which
has been subject to misuse, misapplication, the
addition of petroleum-based fluids or certain
chemical additives to the systems, or other
abuse, will not be covered by this warranty.
If in doubt as to whether a particular substance
is suitable for use with a Taco product or part, or
for any application restrictions, consult the
applicable Taco instruction sheets or contact
Taco at [401-942-8000].
Taco reserves the right to provide replacement
products and parts which are substantially sim-
ilar in design and functionally equivalent to the
defective product or part. Taco reserves the
right to make changes in details of design, con-
struction, or arrangement of materials of its
products without notification.
TACO OFFERS THIS WARRANTY IN LIEU OF
ALL OTHER EXPRESS WARRANTIES. ANY
WARRANTY IMPLIED BY LAW INCLUDING
WARRANTIES OF MERCHANTABILITY OR FIT-
NESS IS IN EFFECT ONLY FOR THE DURATION
OF THE EXPRESS WARRANTY SET FORTH IN
THE FIRST PARAGRAPH ABOVE.
THE ABOVE WARRANTIES ARE IN LIEU OF
ALL OTHER WARRANTIES, EXPRESS OR
STATUTORY, OR ANY OTHER WARRANTY
OBLIGATION ON THE PART OF TACO.
TACO WILL NOT BE LIABLE FOR ANY SPE-
CIAL, INCIDENTAL, INDIRECT OR CONSE-
QUENTIAL DAMAGES RESULTING FROM THE
USE OF ITS PRODUCTS OR ANY INCIDENTAL
COSTS OF REMOVING OR REPLACING
DEFECTIVE PRODUCTS.
This warranty gives the purchaser specific
rights, and the purchaser may have other rights
which vary from state to state. Some states do
not allow limitations on how long an implied
warranty lasts or on the exclusion of incidental
or consequential damages, so these limitations
or exclusions may not apply to you.

APPLICATION:
The Taco 1400 Series Hi-Capacity circulators are designed
for use on a wide range of hydronic heating, cooling or
domestic water re-circulating systems. Features include a
quiet running, close-coupled, thermally protected motor
assembly with permanent split-capacitor and permanently
lubricated bearings. A stainless steel face plate and shaft,
carbon/silicon-carbide mechanical seal, and non-ferrous
impeller make the 1400 series an ideal choice for years of
maintenance-free operation on open or closed systems.
Note: Always use Bronze or Stainless Steel body circu-
lators on open, fresh water systems.
OPERATING SPECIFICATIONS:
•Maximum Working Pressure: 150 psi (1000 kPa)
•Maximum Operating Temperature: 225ºF (107ºC)
•Electrical Rating: 115V/60Hz/1Ph or
230V/60Hz/1Ph
REMOVAL OF EXISTING PUMP FROM SYSTEM PIPING:
1. Disconnect and lock-out electrical supply to pump.
2. Close isolation valves on suction and discharge sides
of pump. If valves are not installed, the system may
need to be drained.
3. Remove capacitor box cover and disconnect electrical
supply lines to pump.
Instruction Sheet
1400 Series Hi-Capacity Circulator
102-147
SUPERSEDES: August 15, 2005 EFFECTIVE: August 1, 2008
Plant ID# 001-1183
INSTALLER: Please leave these instructions for
owner’s use.
CAUTION: Taco “1400 Series” circulators are
designed for indoor use only.
CAUTION: Taco circulators are designed to
operate with water and most glycol solutions.
The addition of certain chemical additives
may cause early failure and void warranty.
CAUTION: To prevent injury, allow system
water to cool to 100ºF before removing old
pump or draining system. Leave drain valve
open until service/replacement is complete.

4. Loosen flange bolts and shift pump body slightly to
relieve any remaining system pressure.
5. Remove flange nuts/bolts and pump from system.
INSTALLATION OF “1400 SERIES” CIRCULATOR:
A. Location:
• Install pump with sufficient room for future inspection,
maintenance and service.
• It is recommended that isolation valves be installed on
the pump suction and discharge to simplify future ser-
vice or replacement without draining the system.
1. Using teflon tape or high quality thread sealant, install
Taco companion flanges on threaded pipe ends to
ensure proper fit-up and leak protection.
2. Minimize pipe strain on pump by using pipe hangers
on the suction and discharge lines.
3. Position vertical and horizontal piping so bolt-holes on
pump and companion flanges match. Do not force the
suction and discharge lines into position. This may cre-
ate excess stress on the pump casing and flanges.
B. Mounting Position:
• Always install pump with the motor shaft in the hori-
zontal position and the capacitor/conduit box oriented
on top of the motor housing, as shown in Fig. 1.
•Standard pump body mounting position is with the flow
in the up-discharge direction (body position #3). The
pump body may be field-rotated in any direction to
accommodate system piping and flow direction.
• Be sure to align the arrow on the casing with desired
flow direction.
C. Electrical Wiring:
• All electrical wiring must be installed by a licensed
electrician in accordance with local and national codes
and regulations.
• Electrical supply and grounding wires must be suitable
for at least 90ºC (194ºF).
• 1400 Series circulators are thermally protected and do
not require external overload protection.
1. Be sure all electrical power to pump is disconnected
and locked-out before proceeding with wiring.
2. Loosen capacitor/conduit box screw and remove cover.
3. Attach appropriate size connector to one of the two
knock-out holes in the capacitor/conduit box.
4. Using minimum 18 AWG wire, connect the hot and
neutral leads from the electrical supply to the respec-
tive black and white leads in the capacitor box.
CAUTION: Do not support, suspend or brace
pump motor or early failure may result.
Support provided by casing is sufficient for
structural integrity of pump
Fig. 1 – Installation Positions
CAUTION: This pump has a mechanical seal
which may eventually wear and leak. Allow
access for periodic inspection and leak
detection. Provide adequate drainage to pre-
vent property damage.

5. Connect the ground wire to the green ground screw in
the capacitor box.
6. Replace capacitor/conduit box cover.
7. Insert plastic plug provided in unused knock-out hole.
SYSTEM START-UP:
1. Prior to pump start-up, closed heating and cooling
systems should be thoroughly cleaned, flushed and
drained.
2. Open isolation valves and re-fill system with clean water.
Check for any leaks.
3. Vent all air from system at an air vent located at the
high point in the system.
4. Start circulator to check for proper operation.
PERIODIC INSPECTION, MAINTENANCE:
Taco 1400 Series Hi-Capacity circulators are designed to
provide years of trouble-free service. However, periodic
inspection and routine maintenance is recommended for
all hydronic systems and mechanical equipment. If any evi-
dence of leakage or damage is present, take preventive
steps to repair or replace the circulator immediately.
REPLACING THE MECHANICAL SEAL: Refer to Fig. 2
on back page.
1. Follow steps 1 thru 5 in section “Removal of existing
pump from system piping”.
2. Loosen the four body bolts that attach the motor hous-
ing to the casing. While supporting the motor, remove
the four bolts and carefully remove the motor and
impeller assembly from the casing.
3. To remove the impeller, first insert a screwdriver into
the motor ventilation slots to make contact with one of
the rotor cooling fins. While holding the rotor in place
with the screwdriver, turn the impeller clockwise to
loosen and remove from shaft.
4. Remove the seal assembly from the impeller shaft.
5. Remove the face plate from the motor housing. To
remove face plate, gently pry it away from the housing.
6. Remove the old seal seat and cup. Lubricate the new
cup with soapy water and install new parts in the face
plate recess. Replace the face plate to its original posi-
tion. Carefully tap the face plate evenly into the recess
in the motor housing.
7. Clean the impeller shaft before installing the new seal.
8. Lubricate the impeller shaft with soapy water. Do not
install new seal on a dry impeller shaft or damage to
seal may result.
9. Slide the new carbon seal and spring assembly onto
the shaft until it contacts the silicon-carbide seal seat.
10. While holding the rotor in place as in Step 3, thread the
impeller onto the shaft in a counter-clockwise direction
until it stops. Check to make sure the pump will rotate.
If the impeller will not spin freely, contact Taco
Technical Support at 1-401-942-8000.
11. Remove old body gasket, clean the recess in the pump
casing and install the new body gasket provided.
12. Attach the pump casing to the motor housing and
secure with the four body bolts. Be sure flow arrow is
pointing in proper direction. Tighten the four bolts
evenly in a criss-cross pattern to 70 in-lb of torque.
There should be a small, even gap between the casing
and the motor mounting bracket.
13. Re-install circulator into system using new flange
gaskets. Refer to section “Installation of 1400 Series
circulator” for complete mounting and wiring instruc-
tions.
CAUTION: Do not start the pump until the sys-
tem has been completely filled and vented.
Running the pump dry may damage the
mechanical seal and void warranty.
CAUTION: Do not allow screwdriver to make
contact with motor windings or insulation.
Permanent damage to motor may result.
CAUTION: Do not allow screwdriver to make
contact with motor windings or insulation.
Permanent damage to motor may result.
* Includes new body gasket
CIRCULATOR
MODEL SEAL KIT NO.*
1400-10, 1400-20, 1400-30,
1400-40, 1400-60, 1400-65,
1400-70 1400-001 RP
1400-45, 1400-50 1400-002 RP