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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 cast 

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

hot-water heating or air-conditioning hydronic system. They are to be used 

with a water or glycol/water mixture.  The stainless steel version is used 

in potable DHW systems or where NSF/ANSI 61-G & 372 compliance is 

required.

Both the cast 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 per-

manent damage.

AVERTISSEMENT:

 Employer des fils d’alimentation ade-

qauts pour 90°C.

AVERTISSEMENT:

 Toute erreur de raccordement ou sur-

charge des connexions électriques ou de signali-sation 

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 cou-

vercleélectrique 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 électro-

nique 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 refroidisse-

ment.

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.  With this information 

the self-sensing ECM pump constantly calculates pump pressure and flow 

and adapts motor speed to the appropriate flow.

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 display showing power on and error code diagnostics. 

•  Mechanically sealed for easy maintenance. 

4 - Use

All 1900e series pumps equipped with a cast 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 NEW Effective January 21 2019 302 388 Plant ID No 001 5016 Instruction Sheet 1915e ECM Circulator...

Page 2: ...Connections Setup and Operation Control UI Panel Layout Switching On Off Pump Functions Mode Descriptions Specifications Application Electrical Ratings Standards Protection Connections Materials of Co...

Page 3: ...chaudes peuvent provo quer des br lures Le moteur peut galement atteindre des temp ratures qui peuvent entra ner des blessures Warning The addition of petroleum based fluids or certain chemical additi...

Page 4: ...l 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 glands should...

Page 5: ...g and Impeller Motor assembly Using the new gasket provided with the seal kit reassemble the Impeller Motor assembly to the casing and secure with the four body bolts Use caution not to pinch the body...

Page 6: ...he pressure begins to drop Constant Speed 3 settings 35ft 25ft 15ft Maintains speed at selected head at 0 flow In Constant Speed mode the impeller speed is maintained through the entire range of flow...

Page 7: ...tection electronically protected Continuous Duty UL778 1004 1 508C CAN CSAC22 2 108 100 107 1 EMC 89 366EEC EN61000 Flange Connections 2 bolt 17 Materials of Construction Casing Impeller Shaft Bearing...

Page 8: ...external controller MOTOR CONTROLLER RIBBON CABLE Connects High Voltage Power Module to UI If the cable becomes disconnected reconnect to MOTOR CONTROL RIBBON CABLE connector 21 Connection Considerat...

Page 9: ...l 3 2 PUMP OPERATION Lead Pump 2 PUMP OPERATION Lag Pump Analog Control Curve RUN Voltage MAX Voltage Function 1 V 3 V Pump at minimum speed 0 V 2 V Pump is at 1 2 speed 3 V 3 to 10 V Speed is proport...

Page 10: ...n effect at time of factory examination and repair Any Taco product or part not installed or operated in conformity with Taco instructions or which has been subject to misuse misapplication the additi...

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