Taco Comfort Solutions FI Series Water Circulation Pumps and Circulators Instruction Manual

June 15, 2024
Taco Comfort Solutions

Water Circulation
Pumps & Circulators

FI / SFI Frame-Mounted End Suction Pumps

FI Series Pumps provide the ultimate in reliability and ease of installation for heating, air conditioning, pressure boosting, cooling water transfer, and water supply applications.
Quiet, dependable and proven performance: that’s the FI Series. Now also available featuring SelfSensing with ProBalance®, ECM motor options and eLink™.

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FI Series Details

Quiet, dependable power and proven performance.
FI Series Pumps meet the latest standards for hydraulic performance and dimensional characteristics. Each is backed by Taco, Inc., a worldwide leader in heating and cooling equipment for more than nine decades.
Improved bearing frame design features sealed for life bearings meeting all industry requirements for a minimum
L 10 life of 60,000 hours. Improved design also incorporates a unique sealing system which prevents the migration of water into the bearing frame.
An easy-to-replace, slip-on shaft sleeve facilitates seal maintenance in the field and lowers maintenance costs.
The exclusive dry shaft design protects the pump shaft by eliminating contact between the shaft and the circulating fluid.
Flush seal line taps allow the installation of a filter to protect the seal from non-condensible particles present in systems. In addition, pressure tappings on suction and discharge connections are provided as a standard feature.
A fully welded, rigid structural steel base, with enclosed ends and open grouting area reduces vibration and improves alignment. Taco FI Pumps are ideally suited for a variety of applications, including heating, air conditioning, pressure boosting, cooling water transfer, and water supply.

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Pressure-Temperature Ratings

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OPERATING SPECIFICATIONS

| Standard| Optional
Flange| ANSI Class 125| ANSI Class 250
Pressure| 175 PSIG 1210 KPA| 300 PSIG 2070 KPA
Temperature|  250°F 120°C| 250°F 102°C

  • Per Pressure Temperature Ratings chart above.

ADDITIONAL OPTIONS

Filters| Cuno 5 Micron
Separators| Kynar Cyclone Separator

** For operating temperatures above 250˚F, a cooled flush is required and is recommended for temperatures above 225˚F for optimum seal life. On closed systems, insert a small heat exchanger in the flush line to cool the seal flushing fluid.

FI Pump Materials of Construction

MATERIALS OF CONSTRUCTION| CASING| COVER| IMPELLER| WEAR RING| SHAFT| SHAFT
SLEEVE| MECHANICAL
SEAL| SEAL FLUSH LINE ASSEMBLY
---|---|---|---|---|---|---|---|---
STANDARD
CONSTRUCTION| BRONZE
FITTED| 125#
FLANGE| Cast Iron ASTM
A48/A48M-03
Class 30A| Cast Iron ASTM
A48/A48M-03
Class 30A| Bronze ASTM
8584 ALLOY
C83600 or C84400| N/A| Stainless Steel
TYPE 4167
ASTM A582| Bronze ASTM
B584-98A 092200| Ceramic/EPT| WA
250#
FLANGE| Ductile Iron ASTM
A535-84
Grade 65-45-12| Cast Iron ASTM
A48/A48M-03
Class 30A| Bronze ASTM
8584 ALLOY
C83600 or 084400| N/A| Stainless Steel
TYPE 4167
ASTM A582| Bronze ASTM
B584-98A C92200| Ceramic/EPT| N/A
OPTIONAL| 125# OR
250#| N/A| N/A| Stainless Steel
ASTM A351/A
351 M-08| Bronze ASTM
8584-98A C92200| N/A| Stainless Steel
TYPE 303 ASTM
A276| Tyngsten Carbide
/EPT or Silicon-
Carbide/EPT| Copper & Brass
03600
STANDARD
CONSTRUCTION| NSF 61| 125#
FLANGE| Cast Iron ASTM
A48/A48M-03
Class 30A| Cast Iron ASTM
A48/A48M-03
Class 30A| Stainless Steel
ASTM A351/A
351 M-08| N/A| Stainless Steel
TYPE 4167′
ASTM A582| Bronze ASTM
B584-98A
C92200| Ceramic/EPT| Copper & Brass
C3600
250#
FLANGE| Ductile Iron
ASTM A536-84
Grade: 6545-12| Cast Iron ASTM
A48/A48M-03
Class 30A| Stainless Steel
ASTM A351/A
351M-08| N/A| Stainless Steel
TYPE 4161-
ASTM A582| Bronze ASTM
13584-98A
C92200| Ceramic/EPT| Copper & Brass
C3600
OPTIONAL| 125# OR
250#| N/A| N/A| N/A| Bronze
ASTM B584-98A
C92200| N/A| N/A| N/A| WA

Support Documentation

Typical Specification
Furnish and install centrifugal end suction single stage pump(s) with capacities and characteristics as shown on the plans.
Pumps shall be Taco Model FI or approved equal. Pump volute or casing shall be center-line discharge for positive air venting constructed of class 30 cast iron with integrally cast mounting feet. The pump may be fitted with an optional replaceable bronze wear ring, drilled and tapped for gauge ports at both the suction and discharge connections and for drain port at the bottom of the casing. The pumps shall be capable of being serviced without disturbing the system piping. The impeller shall be bronze and hydraulically balanced by either back vanes or balancing holes. The impeller shall be dynamically balanced to ANSI Grade G6.3 and shall be fitted to the shaft with a key. The pump shall be close coupled to a NEMA standard JM regreaseable motor. The pump shall incorporate a dry shaft design to prevent the circulating fluid from contacting the shaft. The shaft shall be covered with a replaceable bronze (stainless steel) shaft sleeve.
The cast iron pump bearing housing shall have heavy duty permanently lubricated sealed for life ball bearings, replaceable without disturbing the piping connections, and shall have a foot support at the driver end. The pump shall have a self flushing seal design or a positive external seal flushing line. Pump may be furnished with a seal flush line and a Purocell # 900 replaceable cartridge filter with shut-off isolation valve installed in the seal flushing line. The filter shall have the ability to remove particles down to five microns in size.
The pump seal shall be EPT Ceramic rated 250°F. The base shall be made of structural steel. The base shall also include an integral drain pan. A flexible coupler suitable for both across the line starting applications. as well as variable torque loads associated with variable frequency drives, shall connect the pump to the motor and shall be covered by a coupler guard. Contractor shall level and grout each pump according to manufacturers recommendations to ensure proper algnment prior to operation.

eLink™ Taco Connectivity
Taco Tags use the power of NFC technology to provide users with all the relevant documents for a specific product, right on their phone. Your digital document library will always be accessible with the most up to date documentation and product information for that specific piece of equipment. Utilizing the power of Taco Tags to provide you with all of your documentation needs, Taco is ensuring our user base is informed to take control of their equipment. eLink provides easy access to product specs, technical documentation, instruction manuals and much more. Stay tuned as we continue to grow the eLink offerings on Taco commercial equipment.

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Support Documentation 2

FI Series Performance Field
Curves also available on TacoNet.

1160 RPM

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1760 RPM

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3500 RPM

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Additional Features

A giant leap forward for variable speed pumping
The Self-Sensing Series with ProBalance®. At the heart is the patent pending SelfSensing ProBalance technology. The VFD’s SelfSensing capabilities make fast, accurate do-it-yourself system balancing easy. Reduced balancing contractor costs, no expensive wiring, and no additional sensors required. Apply to ALL your pumping needs: both constant flow chiller/boiler pumps and secondary variable flow pumps!

  • Integrated pump and drive
  • Pump automatically responds to system demand changes
  • No remote sensors
  • No complex wiring
  • Multiple modes:
    — Constant flow
    — Constant pressure
    — Flow compensation
    — Duplex pump alternation

Parallel Pumping Configuration
The SelfSensing Modulating Pump Controller (MPC) stages individual pumps in parallel configuration for best overall pumping efficiency. The MPC is capable of operating 2 to 4 pumps in parallel for maximum efficiency. The Sensorless Parallel Pump Controller provides single building automation systems connection in either BACnet MSTP or Modbus RTU and is enclosed in a NEMA 4X certified enclosure.

The ultimate in pump protection and electrical safety.
The SelfSensing Series also features automatic alerts with optional shutdown for no-flow, dry-run, and end-of-curve operation. That means the seal is safe should someone forget to open a valve or to run the pump without water.
What’s more, the unit is electronically protected for overload and locked rotor conditions per UL 778 and CSA C22.2 No. 108, so the motor is protected — a real crowd pleaser for insurance companies.

Presenting DIY Balancing
Every HVAC pump needs to be balanced by an expert who must account for construction variables and safety factors. Whether constant or variable speed, the balancing process has to be addressed at commissioning and startup. But what if you could zero in on the true system resistance without inducing false head and balance the pump yourself? You can with Taco’s Self Sensing Pro Balance® technology. The benefits of Do-It-Yourself balancing:

  • You’ll have control over your construction schedule and subcontractors
  • Reduced installation costs
  • You can help a LEED team get a job into their budget

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What kind of savings can you expect?
Balancing a constant flow system with Taco drives saves lots of energy and increases pump life dramatically. For example, a pump that would have run at 1750 rpm @ 60hz is balanced with technology to run at 1458 rpm @50hz.
Now the pump consumes 57% of the horsepower and runs 291 fewer revolutions per minute. The savings translate to 419,000 cycles per day or 150M fewer cycles very year.
As a result, the pump lasts longer, requires less maintenance, and uses less energy.
To illustrate, using best practices and balancing with drives saved a Tennessee hospital $3,000 in yearly electrical costs on 100 hp chiller pumps running at 47 hz instead of 60 hz.
ProBalance® feature not available in Parallel Pumping Configuration.

High Performance Packages

Take your system to the next level with Taco’s Optimized Efficiency Packages.
In today’s environment, hydronic systems need to be up to date with the latest technology. The market is now driven towards high efficiency solutions by ever increasing regulations and environmental factors.
Whether you need the best efficiency to combat high utilities or to reduce your carbon footprint, Taco has you covered.

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By utilizing Permanent Magnet motor technology, Taco is bringing the largest ECMs available to the hydronic industry.
In combination with our pumps, we aim to optimize your overall efficiency with the latest technology available. Don’t get caught wishing you had a more efficient system, lead the charge with pumps that exceed regulations, utilize the latest technology available, and decrease total cost of ownership.

Features
Horsepower Range …………….3 – 10hp
RPM ………………………………………….1750

Voltage Options:
3-10 HP = 230V/460V/60/3
Motor Enclosure Type ……….3-10 hp = TEFC
Drive Enclosure Options ….NEMA 1, NEMA12, NEMA4X

Benefits

  • Longer service life, more uptime and higher reliability
  • Increased performance, quieter & smoother operation
  • Reduced lubrication frequency, resulting in  lower maintenance costs
  • Low operating temperature
  • Flatter motor efficiency profile than the equivalent induction motor as the speed & load decline

Oe Package
The Taco Oe package is designed to increase total efficiency. Taco not only meets, but exceeds the regulations passed down from the DOE. In doing so, we also deliver a complete package to our users that saves on energy and the environment.
Our Oe package is simple, we take our pump, add a Permanent Magnet motor, and top the equipment off with a drive to increase your savings at slower speeds!
Taco is the first company to bring ECM technology to hydraulic pumps up to 10hp.

Oe Package including SelfSensing with ProBalance
Everything the Oe package has to offer and the added benefits of the Taco programmed SelfSensing Drives! Increase your performance with the Taco SelfSensing drives included with the Permanent Magnet motor pumps for the best energy rating Taco has to offer. The added benefits of DIY balancing will decrease the total cost of ownership over the lifetime of the pump.

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Additional Features 3

A Variable Frequency Drive is required to operate the Permanent Magnet motor. The Oe package cannot be sold without a drive.

Taco Inc., 1160 Cranston Street, Cranston, RI 02920 / 401-942-8000
Taco (Canada) Ltd., 8450 Lawson Road, Unit #3, Milton, Ontario L9T 0J8 / 905-564-9422
www.TacoComfort.com

References

Read User Manual Online (PDF format)

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