User Guide

ManualsBrandsTaco ManualsPump AccessoriesTaco 2400-50 1/2HP Cast Iron High Capacity Circulator Pump

APPLICATION:

The Taco 2400 Series Hi-Capacity circulators are designed

for use on a wide range of hydronic heating, cooling or

domestic hot water recirculating systems. Features include

a compact, quiet running, close-coupled, thermally protect-

ed motor assembly with permanent split-capacitor and per-

manently lubricated bearings. A stainless steel shaft, sili-

con-carbide mechanical seal and non-ferrous impeller

make the 2400 Series circulator an ideal choice for years of

maintenance-free operation.

Note: Use Stainless Steel body circulators on open

systems for the best corrosion protection.

OPERATING SPECIFICATIONS:

• Maximum Working Pressure: 150 psi (1034 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.

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 2400 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. (See Table 1

for companion flange set specifications.)

Instruction Sheet

2400 Series Hi-Capacity Circulator

102-361

SUPERSEDES: June 15, 2014 EFFECTIVE: December 19, 2014

Plant ID# 001-3932

INSTALLER: Please leave these instructions for

owner’s use.

CAUTION: Taco 2400 Series circulators are

designed for indoor use only.

CAUTION: This pump has a mechanical seal

which may require service. Allow access for

periodic inspection and leak detection.

Provide adequate drainage to prevent prop-

erty damage.

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.

WARNING: Do not use in swimming pool or spa

areas; pump has not been investigated for this

application.

WARNING: To avoid electrical shock, disconnect the

power supply to the circulator and the main electrical

unit.

CAUTION: When installing electrical connections,

do not apply mechanical loads to the capacitor

box; otherwise, retaining screws may be pulled out

of the housing, making circulator unusable.

CAUTION:

1. The addition of petroleum based fluids or cer-

tain chemical additives to systems utilizing TACO

equipment voids the warranty.

2. Use supply wires suitable for 90°C – ATTEN-

TION: Employer des fils d´alimentation adequats

pour 90°C.

CAUTION: Installations at higher elevations over

5000 feet must have higher fill pressure of 20 psi

minimum 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.

STAINLESS STEEL

MODELS ONLY

OR INDOOR

SE ONLY

Summary of content (4 pages)

PAGE 1
Instruction Sheet SUPERSEDES: June 15, 2014 Plant ID# 001-3932 2400 Series Hi-Capacity Circulator 102-361 EFFECTIVE: December 19, 2014 3. Remove capacitor box cover and disconnect electrical supply lines to pump. 4. Loosen flange bolts and shift pump body slightly to relieve any remaining system pressure. 5. Remove flange nuts/bolts and pump from system. STAINLESS STEEL MODELS ONLY FOR INDOOR USE ONLY INSTALLER: Please leave these instructions for owner’s use.
PAGE 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 create excess stress on the pump casing and flanges. B. Mounting Position: • Always install pump with the motor shaft in the horizontal position and the capacitor/conduit box oriented on top of the motor housing, as shown in Fig. 1.
PAGE 3
• 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). • 2400 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.
PAGE 4
Fig. 2: Exploded View of Pump LIMITED WARRANTY STATEMENT Taco, Inc. will repair or replace without charge (at the company’s option) any Taco 2400 Series circulator or circulator part which is proven defective under normal use within three (3) years from the date of manufacture.