Taco 302-388 High Efficiency Circulator Instruction Manual
- June 17, 2024
- TACO
Table of Contents
- Installation and Operation
- General Information Uses
- Safety
- Pump Description
- Use
- Pumped Fluids
- Pump Installation
- Motor Rotation Procedure
- Control Panel UI Rotation Procedure
- Seal Replacement (Reference IOM #302-392)
- System Start-Up
- Electrical Connections
- Setup and Operation
- Pump Functions
- Specification
- Electrical Ratings
- Standards, Protection and Connection
- Materials of Construction
- Features
- Specifications
- Controller Layout
- Connection Considerations
- Fault Finding & Error Codes
- Replacement Parts
- LIMITED WARRANTY STATEMENT
- Read User Manual Online (PDF format)
- Download This Manual (PDF format)
Instruction Sheet
1915ecm ECM High-Efficiency Circulator
SUPERSEDES: July 29, 2019
Plant ID No. 001-5031
Effective: January 10, 2023
302-388
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.
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 module
and its functions.
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.
Safety
These instructions should be studied carefully before installing or operating
the pump. They are meant to help you with installation, use and maintenance
and to increase your safety.
Installation should be performed with regards to local or national standards.
Only qualified personnel should maintain 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.
Warning: To avoid electrical shock, disconnect the power supply to the
circulator and the main electrical unit. Follow all local electrical and
plumbing codes.
Warning: Hot surfaces can cause burns. The motor can also reach
temperatures that could cause injury.
Warning: The addition of petroleum based fluids or certain chemical
additives to systems using TACO equipment voids the warranty.
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.
Warning: Do not operate pump without the electrical cover securely
attached.
Warning: Pump motor, electronics enclosure and condensate drain openings
should not be thermally insulated as it could interfere with cooling and
condensate drainage.
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
mechanical seal. 1900e series pumps are powered by an electronically
commutated 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.
- 4 – Constant Pressure modes.
- 3 – Constant Speed modes.
- 1 – Proportional Pressure mode.
- 1 – 0-10v mode.
- 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.
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
systems.
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.
Pumped Fluids
In hot and chilled hydronic systems, use water or water/glycol mixtures only.
Water/glycol mixtures must be HVAC-system compatible and should have no more
than 50% concentration of glycol. The fluid shall not consist of aggressive or
explosive additives, mixtures of mineral oils or solid or fibrous particles.
The pump should not be used for pumping flammable, explosive fluids, or in an
explosive environment.
Warning: The majority of mechanical seal failures are due to poor media
(fluid) quality in the system. To maximize seal life, media quality must be
maintained in the system, and TDS (Total Dissoled Solids)/TSS (Total Suspended
Solids) should not exceed 500ppm with standard carbon/ Silicon-Carbide seals.
The use of inhibitor based glycols is acceptable, but additional inhibitors
should not be added. Always follow the glycol manufacturer’s specification for
system preparation and water quality.
Treatment with silicates should not be used. Failure to maintain media quality
will void the standard Taco warranty.
Pump Installation
The 1900e series pump is protected with a double box during shipping.
It can be lifted from the box by the heat sink.
Warning: Pump may be heavy. Provide yourself help if needed.
It is recommended that the1900e series pumps be installed with at least 5 to
10 pipe diameters of straight pipe on the inlet and outlet of the pump. Use
all nuts and bolts to attach companion flanges to the pump flanges.
The 1915ecm uses a mechanical seal. To ensure reliability of the seal, a
minimum continuous safe flow rate of 9 gpm at full load (15% of BEP flow) is
recommended. Ensure flange bolts are adequately torqued.
The 1900e series model pumps can be installed with the motor shaft in 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 djust
orientation of the User Interface – the cable glands should never be pointed
upward to mitigate water ingress. The desired conduit box orientation can be
achieved by rotating the motor housing on the pump casing and assembled to 10
in-lbs of torque (See Section7).
Desired pump orientation can be achieved by rotating the pump casing. The pump
is mounted to the volute with four screws. By removing those the head can be
turned. See detailed Motor Rotation Procedure 7 below.
Caution: When reassembling, care should be taken to avoid damaging the o-ring
and insuring a good seal.
Flange Bolt Size | FLANGE DIMENSIONS |
---|---|
Model (Flange Size) | Bolt Hole Diameter |
Minimum Bolt Size | Qt y. |
1915ecm (1 U2″) | 0.672 |
1-1/2″ NPT Cast Iron Flange Kit | 1600-031RP |
--- | --- |
1-1/2″ NPT Stainless Steel Flange Kit | 198-3084RP |
2″ NPT Cast Iron Flange Kit | 1600-032RP |
2″ NPT Stainless Steel Flange Kit | 1600-032SRP |
PERMITTED AMBIENT AND MEDIA TEMPERATURE
Ambient Temperature [°F] | Fluid Temperature |
---|---|
Min. [°F] | Max. r9 |
Up to 75 | 36 |
85 | 36 |
95 | 36 |
105 | 36 |
Ambient Temperature [°C] | Fluid Temperature |
--- | --- |
Min. [°C] | Max. [°C] |
Up to 25 | 2 |
30 | 2 |
35 | 2 |
40 | 2 |
Attention! Operation outside recommended conditions may shorten pump lifetime and void the warranty.
Motor Rotation Procedure
Caution: If system is filled and pressurized, shut off valves before and
after the 1900e series pump. Allow to cool if system fluid is hot.
Notice! It is recommended to always change the orientation of the motor
before installing pump in piping.
Attention! Installing pumps in UNAUTHORIZED positions may result in voiding the warranty.
Tools Required:
- 3/16” ball-end hex wrench
- ¼” or 3/8” flat tip screw driver
a. With the motor in a vertical position, use the 3/16” ball-end hex wrench to loosen and remove the 4 body bolts.
b. Using a flat tip screwdriver if necessary, gently pry the motor away from the pump housing at any one of six 0.3′ x 0.15′ water egress slots. The motor is now ready to be rotated.
c. Rotate the motor so that the conduit box is in the desired position.
Note: The Control Panel UI is designed so that it can be rotated separately. (see Section 8 Control Panel UI Rotation Procedure)
d. Reinstall the motor assembly to the pump housing being sure not to damage the seal and the impeller is inserted into the floating ring of the casing.
e. Insert the bolts and tighten in a double crisscross pattern.
Control Panel UI Rotation Procedure
a. Disconnect and lockout the electrical supply to the pump.
b. Using a #2 Philips head screwdriver, remove the 4 screws securing the
Control Panel UI to the Control Box.
c. Rotate the Control Panel UI to the position desired. If desired, drain
water from the casing body using the lowest 1/8″ drain plug.
d. Gently remove the Control Panel UI away from the Control Box.
Note: The control panel is connected to the High Voltage Power Unit by a
ribbon cable. The cable is long enough to accommodate rotation without
disconnecting the cable from the UI.
e. Insert the screws and tighten in a crisscross pattern.
Seal Replacement (Reference IOM #302-392)
a. Disconnect and lockout the electrical supply to the pump.
b. Remove the conduit box cover and disconnect the electrical connections to
the pump.
c. Close isolation valves on suction and discharge sides of the pump.
If valves are not present, the system may need to be drained.
d. Relieve the system pressure, reduce the system temperature to ambient and
drain the water from body. If desired, drain water from the casing body using
the lowest 1/8″ drain plug.
e. Remove flange nuts/bolts and the pump from the piping.
f. Loosen and remove the four body bolts that attach the motor assembly to the
pump body. Carefully remove the motor and control assembly from the pump body
at any one of six 0.3′ x 0.15′ water egress slots.
g. Remove the User Interface (UI) cover from the motor/heat sink assembly
exposing the slotted pump shaft access port through the center of the High
Voltage Power Module.
h. Disconnect the ribbon cable from the UI panel.
Caution: Do NOT remove the High Voltage Power Module. Removal of the High
Voltage Power Unit will void the manufacturer’s warranty and may pose the Risk
of Electric Shock.
i. Place the motor assembly in a horizontal position with the impeller and
slotted shaft end easily accessible.
j. The impeller is fastened to the shaft using a REVERSE (Left-Handed) thread.
To remove the impeller, carefully place the flat end of a screwdriver into the
slotted shaft end. While holding the rotor/shaft in place with the
screwdriver, turn the impeller clockwise using your free hand to remove the
impeller from the shaft and gain access to the mechanical seal.
NOTE: The impeller is made from a polymeric material, use caution not to
crack or otherwise damage the impeller.
k. Remove the complete seal assembly from the shaft.
l. Remove the old seal seat and cup from the seal face plate.
m. Thoroughly clean the impeller shaft before installing the new seal.
n. Lubricate the new cup with soapy water and install new parts in the face
plate recess.
o. For DHW applications, lubricate the impeller shaft with soapy water,
for all other applications use the lubricant supplied with the seal kit.
NOTE: Do NOT install the new seal on a dry impeller shaft or damage to the
seal may result.
NOTE: Do NOT use any other oil or grease.
p. Slide the new carbon seal and spring assembly onto the shaft until it
contacts the seal seat.
q. While holding the shaft in place as used in the impeller removal steps,
thread the impeller onto the shaft in a counter-clockwise direction until it
stops. Check to make sure the impeller/shaft assembly will rotate.
If the impeller does not spin freely, contact Taco Technical Support at 1
401-942-8000.
r. Reconnect the ribbon cable from the High Voltage Power Module to the UI
panel.
s. Clean the gasket surfaces between the pump casing 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 gasket 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 if required. Be sure that the arrow on the casing is
pointing in the right direction of flow.
u. Reconnect the electrical wiring. Do not turn on the electrical supply to
the pump until all “Start-Up” steps are complete.
v. Follow procedure outlined under START-UP section.
System Start-Up
a. The pump must always be filled with system fluid and the system vented as
the pump uses a mechanical seal which requires fluid lubrication.
b. Partially unscrew the highest point 1/8” NPT drain plug in the pump casing
until only water trickles from the screw threads. Retighten the drain plug as
needed to seal the system.
c. The motor stator openings and stator housing should not be insulated.
The thermal insulation may prevent motor cooling and prohibit condensate from
escaping from the motor housing when used in high humidity environments where
the fluid temperature is below the motor temperature.
d. Prior to pump start-up, closed heating and cooling systems should be
thoroughly cleaned and drained.
e. Open isolation valves and refill system with clean water.
Check for any leaks.
f. Vent all air from system at an air vent located at a high point in the
system and at the highest point 1/8″ NPT casing drain plug.
g. Remove the lowest point black EPDM drain plug from the motor housing with
the motor shaft in the horizontal orientation or any drain plug in the
vertical orientation to support condensation egress.
h. Start the pump and check for proper operation.
NOTE : Pump casing includes three 1/8″ NPT drain plugs to evacuate air
from the mechanical seal chamber prior to operation.
Electrical Connections
a. Connection of the pump must comply with local electrical codes and be
carried out by qualified personnel. When connecting the pump, the following
must be considered:
b. Local or national electrical code requirements supersede Taco’s
specification.
c. Install an electrical disconnect to comply with national electrical code.
d. Connection of the power supply electrical cable must be done in a manner
that ensures it does not contact the motor housing and volute of the device,
due to potential high temperatures of both.
e. The pump has built-in over current protection, temperature protection, and
basic overvoltage protection. It does not require additional overload
protection devices unless required by local electrical codes.
Power supply cabling should be capable of carrying rated power and be properly
fused. Grounding connection is essential for safety and should be connected
first. System piping should be grounded separately.
f. Connect the black wire of the pump to the “Hot/ Live” wire of the system.
Typically black, or red wire if no black wire is present.
When no black wire is present, a red wire is a secondary live wire found in
some 220/1 circuits.
Connect the white wire of the pump to the white or grayneutral wire of the
system.
The green ground wire is connected to the grounding terminal inside the pump.
See figure 2 noted to the left.
Setup and Operation
12.1 – Control (UI) Panel Layout
- Status LED
- Constant Pressure Mode Setting LED
- Constant Speed Mode Setting LED
- Proportional Pressure Mode LED
- 0-10v Mode LED
- 2-Pump Operation LED
- [^] Select Mode Button
- [O] Set Mode Button
12.2 – Switching the Pump On and Off
When the pump is powered for the first time, it operates with the factory
default setting in Constant Pressure mode equal to 33ft of head.
The pump requires dry contact to run and comes with a jumper across the ENABLE
INPUT (J4) contacts found on the Control Panel UI. The pump will run when
connected to a power source when the jumper is connected.
Turning the pump on/off remotely is accomplished by accessing the ENABLE INPUT
(J4) contacts on the UI control board located under the UI and connecting the
contacts to an external relay. Access is gained by removing the 4 screws
located in each of the UI panel’s four corners.
Note: After powering up, wait 5 minutes before powering off.
Pump Functions
[^] Select Mode Button
Short press: Change Mode
-
Scrolling through operational modes upwards. Current operational mode LED blinking.
To accept the new mode press the Set Mode button.
[O] Set Mode Button
Short press: Confirm Selection -
To confirm the mode currently selected.
Selected operational mode LED solid.
NOTE : Pump returns to previous operational mode if Set Mode is not pressed.
Long Press (10 seconds) – LOCKOUT
-
Pressing and holding the [O] Set Mode Button for 10 seconds activates or deactivates pump LOCKOUT. In LOCKOUT, the currently selected mode is active only. No changes can be made while in LOCKOUT.
LOCKOUT activation or deactivation is acknowledged by all LED’s blinking on and off once, and returns to display current operating mode.
[^] Select Mode Button + [O] Set Mode Button
Long press (3 seconds): 2-Pump Operation -
To select or deselect 2-pump (lead/lag) operation.
13.1 – Pump Modes, 0-10Vdc and Parallel Pump Operation
The pump can operate in 9 different modes. Set the pump in the most
appropriate mode depending on the system where the pump operates.
The pump modes are:
Constant Pressure: 4 settings 65ft, 45ft, 35ft, 25ft (Changes impeller speed
to maintain pressure as flow increases)
-
The pump maintains the selected pressure from 0 flow to maximum power. At maximum power the pressure begins to drop with increasing flow.
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.
Automatic Mode: 1 setting (Proportional Pressure – 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 cannot be changed.
0 – 10Vdc: -
In this mode, all automatic curves are deactivated for full control via an external signal. A dry contact from the external source is used to activate or deactivate the pump. Pump speed is controlled via a 0-10V DC signal. Loss of the 0-10V DC signal defaults pump to 50% of full speed. The 0-10Vdc output signal is a linear relationship between speed and Vdc regardless of the selected mode. 1-3 Vdc is minimum speed,
10 Vdc is maximum speed, 6.5 Vdc is medium speed etc. -
0-10Vdc operation is unavailable in 2 pump mode.
To switch between modes (except 2-Pump Operation) depress the [^] Select Mode
button for 1 second. The selected mode LED will begin blinking. Continue
pressing the [^] Select Mode button to scroll through
the available modes indicated by the mode’s blinking LED. Press the [O] Set
Mode button to accept the desired operating mode.
2-Pump Operation: 1 setting
- This option is selected when 2-pump alternation is desired.
- Pumps will alternate run-time every 24 hours (not adjustable).
- In this mode the lead pump will control the operation of the lag pump.
1. Set both pumps to the same Mode
2. Turn main power off to both pumps
3. Connect Primary Pump “P1” relay output common and NC to “P2” Enable Input (see 21.1 – Connection Examples Parallel Pump Operation). NOTE: Remove factory installed jumper from “P2” Enable Input
4. Connect “P2” 0 – 10Vdc Output to “P1” 0-10Vdc Input, positive to positive and negative to negative
5. NOTE: Between pumps standard 18ga unshielded communication wire is sufficient
To activate or deactivate 2-Pump Operation, press the [^] Select Mode button +
[O] Set Mode button together and hold for 3 seconds. The 2-Pump Operation LED
will light indicating 2-Pump Operation activation.
The LED will go out upon deactivation. Only the master pump should be set to
2-pump operation.
Once in 2-Pump operation, press the SELECT MODE button and the SEST MODE
button together for 1 second to switch the running pump.
Specification
14.1 – Application
-
Maximum Operating Pressure: 175 PSI (12 bar)
-
Water Temperature Range: 36° – 230°F (2.2° – 110°C)
-
Ambient Operation Temperature Range: 32° – 104°F (0° – 40°C)
-
Relative Humidity: Max. 95% non-condensing
-
Central heating application is designed for closed loop heating and cooling systems pumping water or a water/glycol mixture.
-
DHW application is designed for open loop potable water systems.
Rated NSF/ANSI 61 & 372 Commercial Hot (180 °F) -
NPSHr – Minimum static inlet pressure at pump suction to avoid cavitation and mechanical seal damage:
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 unaugment a litterateur.
Electrical Ratings
Description | 1915ecm (G1) |
---|
Pump Ratings
1 phase| 200-240V, 47-63Hz
Power Consumption (HP)| 0.027-0.87 HP
Power Consumption (W)| 20-650W
Rated Current
(1 phase, 200-240V)| 0.25-3.3A
Relay Output| 30 VDC Max. Load up to 2A
24VAC Max. Load up to 3A
Analog Input| Input Voltage: 0-10V, 10mA
Output Voltage: 0-10V, 10mA
Note: Supply voltages below 230V may result in performance reduction at low flow. — For 1915ecm only.
Standards, Protection and Connection
- Insulation: Class H (180 °C)
- Enclosure: Type 2
- Integrated Motor Protection (Electronically Protected)
- Continuous Duty
- UL778
- CAN/CSAC22.2#108, #100, #107.1, EMC (89/366EEC):EN61000
- Flange Connections: 2-bolt
Note: This equipment has been tested and found to comply with the limits for a
Class A digital device, pursuant to part 15 of the FCC Rules. These limits are
designed to provide reasonable protection against harmful
interference in a residential installation. This equipment generates, uses and
can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not
occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:
- Reorient or relocate the receiving antenna.
- Increase the separation between the equipment and receiver.
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
- Consult the dealer or an experienced radio/TV technician for help.
Materials of Construction
• Casing| HVAC application: Ductile Iron, Cataphoresis Coated DHW application:
Stainless Steel
---|---
• Impeller| PPS
• Shaft| Stainless Steel 6202 Series Drive End
• Bearing| Sealed for Life Ball Bearings, 6002 Series Non-Drive End
Section 2. Controller Operation
Features
This section describes the controller features for 1900e series of pumps.
The controller is used for various remote control applications, including:
-
Remote on/off
-
Analog 0 – 10 V voltage control
-
Status relay feedback
There are several possible connection configurations. Not all functions can be used simultaneously. -
on/off + 0 – 10 V + relay output
Specifications
Tables to the right provide an overview of Controller specifications. For details, please refer to appropriate sections of this manual.
General Data
Ambient Humidity| < 95% relative, non-condensing| Also see appropriate pump
data for other ambient specifications.
Analog Signals
Input Voltage Range| 0 to 10V DC| When used as input. 10 mA max. drive
required.
15 VDC Max.
Output Voltage Range| 0 to 10V DC| When used as output. 10 mA max. load
allowed.
Input Resistance| ~3 k0|
| Relay Specifications
---|---
Connection Type| | Terminal Block
Rating| | 24V AC, 3A
30V DC, 2A
Controller Layout
Terminal Designation | Description |
---|---|
RELAY OUTPUT | Used to enable alarm output, Relay is closed during normal |
operation and open during alarm.
Used to enable Lag pump when in 2 pump operation. The primary pump relay is
used to turn on/off the Lag pump through the slave enable input.
ENABLE INPUT| Jumper must be connected for pump to run. (DEFAULT
CONFIGURATION)
Use with external DRY CONTACT RELAY ONLY for remote on/off
0 – 10V DC Input| Used to receive speed control from an external control.
Used to receive input from Slave pump when in 2 pump operation to verify
operation.
0 – 10V DC Output| Used to send signal to Master in 2 pump operation
Used to provide analog feedback to an external 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, reconnect to “MOTOR CONTROL RIBBON CABLE”
connector.
Connection Considerations
- All cables connected must be heat-resistant to at least +194 °F (90˚C)
- All cables connected must be installed in accordance with The National Electric Code NFPA 79 / EN 60204-1.
- All wires to the communications module must be connected to the terminals or cut. No loose wiring permitted.
Warning : Before performing any work on the UI, make sure that the pump
and module electricity supply has been switched off and that it cannot be
accidently switched on.
Warning: Voltages 24V AC/DC are possible on NO, C, NC Terminals.
Cable outer layer must not be stripped longer than 0.59 inches.
15 Vdc Maximum on 0-10 V DC input and output terminals
21.1 – Connection Examples
![Taco 302-388 High Efficiency Circulator
- Lag Pump](https://manuals.plus/wp-content/uploads/2024/02/Taco-302-388-High- Efficiency-Circulator-Lag-Pump.png)
Analog Control Curve
RUN Voltage | MAX. Voltage | Function |
---|---|---|
> 1 V | < 3 V | Pump atminimum speed. |
= 0 V | < 2 V | Pump is at 1/2 speed. |
> 3 V | 3 to 10 V | Speed is proportional to voltage regulation. |
Fault Finding & Error Codes
The pump Status LED will flash red during errors and overload conditions. The
sequence of the flash is determined by the type of the error per the following
tables.
Error Codes for 1915ecm • (Blinks in 1/2 second intervals for a period 15 sec)
Number of blinks| Error Description| Probable Cause(s)| Pump
Response
---|---|---|---
1 Blink| Locked Rotor| Motor| Restarts 10 times then shut down/off
2 Blinks| Over Current| Motor| Shut down/off
3 Blinks| Over Temperature| Motor| Shut down/off
Orange Blinking| Temperature Error| Motor| Reduce speed
4 Blinks| Over Voltage| Motor| 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 Fault| UI| Shut down/off
9 Blinks| Dry Run Fault| Motor| Shut down/off
10 Blinks| PFC IAC Error| Motor| Shut down/off
11 Blinks| PFC IAVG Error| Motor| Shut down/off
12 Blinks| BUS Voltage Error| Motor| Shut down/off
Replacement Parts
Replacement Part Description | Part Number |
---|---|
Application Control Circuit Board | 9300-4046-PUR-RP |
Standard Seal, Carbon/Silicon-Carbide/EPDM* | 198-3079RP |
NSF Compatible Seal, Carbon/Silicon-Carbide/Viton* | 198-3080RP |
Impeller Assembly, Standard Seal, Carbon/Silicon-Carbide/EPDM* | 198-3249RP |
Impeller Assembly, NSF Compatible Seal, Carbon/Silicon-Carbide/Viton* |
198-3250RP
LIMITED WARRANTY STATEMENT
Taco, Inc. will repair or replace without charge (at the company’s option)
any commercial pump product or part which is proven defective under normal use
within one (1) year from the date code.
Seals provided on commercial pumps are not covered by this warranty.
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 product or part, delivery
prepaid, to the stocking distributor. For assistance on warranty returns, the
purchaser may either contact the local Taco stocking distributor or Taco. If
the subject product 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 operated 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 similar in design and functionally equivalent to the defective
product or part. Taco reserves the right to make changes in details of design,
construction, 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 FITNESS 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 SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL
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.
Taco, Inc., 1160 Cranston Street, Cranston,
RI 02920 I Tel: 401-942-8000
Taco (Canada), Ltd., 8450 Lawson Road, Suite #3,
Milton, Ontario L9T 0i8 I Tel:
905-564-9422
Visit our web site:www.TacoComfort.com
I Printed in USA I ©2023 Taco, Inc.
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