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Section 1. Installation and Operation

 Warning:

 Installation and use of this product requires    

  experience and knowledge of this or similar products.    

  Persons with reduced physical, mental or sensory  

 

  capabilities must not use this product, unless properly    

  instructed and supervised. Children must not be allowed    

 

to play with this product.

Avertissement:

 l'installation et l'utilisation de ce produit exigent 

une expérience et des connaissances de ce produit ou de produits 

semblables. Une personne aux capacités physiques, mentales ou 

sensorielles réduites ne doit pas utiliser ce produit, à moins d’être 

correctement instruite et supervisée. On ne doit pas laisser les 

enfants jouer avec ce produit.

Introduction

This manual is broken down into two sections and describes the installation, 

operation and control module for 1900e

®

 series pumps. Section 1 describes 

the installation and operation features. Section 2 describes the control mod-

ule and its functions.

1 - General Information Uses

The 1900e series circulating pumps are available in 2 versions.  The ductile 

iron version is used for the transfer of liquid media within a closed-loop 

hot-water heating or air-conditioning hydronic system.  The stainless steel 

version is used in potable DHW systems or where NSF/ANSI 61 & 372 

compliance is required.

Both the ductile iron and stainless steel versions are designed as single or 

parallel main/standby operation variable-speed pumps, where the speed is 

regulated by an on-board electronic device. 

2 - Safety

These instructions should be studied carefully before installing or operating 

the pump. They are meant to help you with installation, use and mainte-

nance and to increase your safety. Installation should be performed with re-

gards to local or national standards. Only qualified personnel should main-

tain and service these products. Failure to comply with safety precautions 

could cause personal injury or machinery damage.

Warning:

 Do not use in swimming pool or spa areas. Pump 

has not been investigated for these applications.

AVERTISSEMENT:

 Ne pas utiliser dans une piscine ou un 

spa. La pompe n’a pas été étudiée pour ces applications.

Warning:

 To avoid electrical shock, disconnect the power 

supply to the circulator and the main electrical unit.  Follow 

all local electrical and plumbing codes.

AVERTISSEMENT:

 Pour éviter tout choc électrique, 

débranchez l’alimentation électrique vers le circu-lateur et  

l’unité électrique principale. Respectez tous les codes de 

plomberie et électriques locaux.

Warning:

 Hot surfaces can cause burns.  The motor can 

also reach temperatures that could cause injury.

AVERTISSEMENT:

 Les surfaces chaudes peuvent provo-

quer des brûlures. Le moteur peut également atteindre des 

températures qui peuvent entraîner des blessures.

Warning:

 The addition of petroleum based fluids or certain 

chemical additives to systems using TACO equipment voids 

the warranty.

AVERTISSEMENT:

 L’ajout de liquides à base de pétrole ou 

de certains additifs chimiques à des systèmes utilisant un 

équipement TACO annule la garantie.

Warning:

 Use supply wires suitable for 90°C.

Warning:

 Misconnection or overload of electrical or 

signal connections could cause pump to shut-down or 

cause permanent damage.

AVERTISSEMENT:

 Employer des fils d’alimentation  

adeqauts pour 90°C.

AVERTISSEMENT:

 Toute erreur de raccordement 

ou surcharge des connexions électriques ou de 

signalisation peut entraîner un arrêt de la pompe 

ou des dommages permanents.

Warning:

 Do not  operate pump without the electrical  

cover securely attached.  

AVERTISSEMENT:

  Ne pas actionner la pompe si le  

couvercleélectrique n’est pas correctement fixé.

Warning:

 Pump motor, electronics enclosure and conden-

sate drain openings should not be thermally insulated as 

it could interfere with cooling and condensate drainage.

AVERTISSEMENT:

  

Lemoteur depompe, l’enceinte 

électronique et les ouvertures de drainage de condensat 

doivent être thermiquement isolés car il peut y avoir interférence avec 

l’évacuation de condensat et deliquide de refroidissement.

3 - Pump Description

The high efficiency, electronically commutated, close coupled 1900e series 

pumps consist of two main parts; the centrifugal pump and the electronic 

control. The hydraulic section is sealed from the motor assembly by a me-

chanical seal.  1900e series pumps are powered by an electronically com-

mutated permanent magnet motor (ECM) which does not consume energy 

to magnetize the rotor, providing superior energy efficiency.

The ECM motor is run by an on-board frequency converter. The converter 

estimates current flow and head from the motor load and speed.  With this 

information the self-sensing ECM pump constantly calculates pump head 

and flow and adapts motor speed to the appropriate flow for the selected 

curve.

3.1 - Features

•  10 easy to set modes to match system requirements.  

 

º

 4 - Constant Pressure modes. 

 

º

 3 - Constant Speed modes.

 

º

 1 - Proportional Pressure mode.

 

º

 1 - 0-10v mode.

 

º

 1 - 2-pump operation mode.  

•  ECM performance equivalent to the versatile 1900 & 1600 series 

pumps.

•  Fully rotational User Interface (UI) to accommodate any pump position.

•  Led Status monitors Pump On (solid green), Pump in Standby (flashing 

green) and Error (flashing red error code - see section 22.1)

•  Mechanically sealed for easy maintenance. 

4 - Use

All 1900e series pumps equipped with a ductile iron casing are intended 

for circulation of solid-free fluid in pressurized, hot and chilled hydronic sys-

tems. All 1900e series pumps equipped with a stainless steel casing are 

intended for DHW and potable water applications and are NSF Commercial 

Hot (180°F water) rated and suitable for sanitizing applications.

Summary of Contents for 1900e Series

Page 1: ...SUPERSEDES July 29 2019 Effective January 10 2023 302 388 Plant ID No 001 5031 Instruction Sheet 1915ecm ECM High Efficiency Circulator 900 1...

Page 2: ...onnections 5 12 Setup and Operation 6 12 1 Control UI Panel Layout 6 12 2 Switching On Off 6 13 Pump Functions 6 13 1 Mode Descriptions 6 14 Specifications 7 14 1 Application 7 15 Electrical Ratings 7...

Page 3: ...indre des temp ratures qui peuvent entra ner des blessures Warning The addition of petroleum based fluids or certain chemical additives to systems using TACO equipment voids the warranty AVERTISSEMENT...

Page 4: ...n the horizontal position or the vertical position with the control module facing up see Figure 1 The cover can be rotated independent of the pump to adjust orientation of the User Interface the cable...

Page 5: ...ket or leaks may result Tighten the four bolts evenly in a double crisscross pattern to 70 in lb of torque t Reinstall the pump into the system using the new flange gaskets supplied with the seal kit...

Page 6: ...ssure increases impeller speed to increase differential head as flow increases In automatic mode the pump sets the operating pressure depending on the system resistance The parameters are preset and c...

Page 7: ...chnician for help Fluid Temperatures PSI bar 112 F 50 C 5 1 0 4 176 F 80 C 10 4 0 8 230 F 110 C 23 7 1 7 14 2 For indoor use only employer uniquement a l interieur 15 Electrical Ratings Description 19...

Page 8: ...nal controller Note Max output voltage may be limited due to power limiting of the pump MOTOR CONTROLLER RIBBON CABLE Connects High Voltage Power Module to UI If the cable becomes disconnected reconne...

Page 9: ...9 21 1 Connection Examples DEFAULT FACTORY Configuration REMOTE START Analog Control 1 REMOTE START Analog Control 2 REMOTE START Analog Control 3...

Page 10: ...10 2 PUMP OPERATION Lead Pump 2 PUMP OPERATION Lag Pump From Relay Output on Lead Pump To 0 10VDC Input on Lead Pump From 0 10VDC Output from Lag Pump To Enable Input of Lag Pump...

Page 11: ...tor Shut down off 5 Blinks Under Voltage Motor Shut down off 6 Blinks COMM Fault Error TX RX UI or Motor Run at Constant Speed 1 7 Blinks Safety Routine Error Motor Shut down off 8 Blinks Staging Faul...

Page 12: ...tance 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 prov...

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