Armstrong s-55 User guide

1.0 installation 1
2.0 system cleanliness 1
3.0 starting up 1
4.0 electrical wiring 1
5.0 speed setting 2
6.0 0v to 10v dc control 2
7.0 lubrication 2
8.0 seal replacement 2
9.0 appendix 1 3
caution
Always disconnect power supply from motor
before servicing.
1.0 installation
For convenience, Armstrong circulators generally are installed
in vertical pipelines, but may be changed easily on the job for
horizontal pipelines or for opposite flow directions. To make the
change, remove the body capscrews, taking care body gasket is
kept in position, and rotate body to desired direction at 90° or
180° from the original position.
With the arrow on the body pointing in direction of the flow,
insert body capscrews and tighten evenly. On models s55 and
s57 a gap between the bearing bracket and pump body (vo-
lute) is normal. Do no over tighten body capscrews! Turn pump
shaft manually at coupler to make sure shaft turns freely and
impeller does not rub in body. Always install with motor shaft
in a horizontal position. For non maintenance free models the
oil cups or oil well cover must be facing up.
All ecm models are shipped for upward discharge as pumps of
this size usually are installed in an upward direction on hydronic
systems, so the point of zero pressure change - namely, the
compression tank connection - can be made easily to the sys-
tem on the suction side of the circulator.
The pump should be installed in a position to permit proper
lubrication and servicing. Motor and bearing brackets are to be
kept free of insulation. Pump and motor unit are designed to be
supported by the in-line piping only. Do not support in any oth-
er manner. A height of approximately four feet above the floor
is recommended. When placing the pump between flanges,
tighten flange bolts evenly and do not tighten excessively.
Gate valves should be installed on the discharge and suction
side of the pump to facilitate service. On larger pump sizes, a
check valve should be located on the discharge side of pump
between the pump body and the gate valve to prevent damage
due to water hammer.
2.0 system cleanliness
Before starting the pump, the system must be thoroughly
cleaned, flushed and drained, then replenished with clean
liquid. Welding slag and other foreign materials, 'stopleak'
and cleaning compounds, excessive or improper water treat-
ment - all are detrimental to the pump. Warranty will be void if
any of these conditions are allowed to exist. (Refer to File no.
6090.645 design and care of closed hydronic systems.)
3.0 starting up
The pump must be fully primed on start-up. Fill system piping
and pump body with liquid and vent complete system, turning
pump by hand to dislodge air from body. Make sure fittings and
drain valves are airtight, then add any additional fill required.
Check motor against available electric supply, then start pump
making sure rotation is correct. When viewed from motor end,
rotation is clockwise. If pressure does not develop, stop pump,
re-check, vent and fill. Never attempt to fill the system when
the pump is running.
note: ecm motors have a 15 second soft start-up time once plugged in,
and a 30 second time to achieve full speed (thus dierent from standard
induction motors)
4.0 electrical wiring
The electrical wiring must be installed in strict ac-
cordance with the Canadian Electrical Code (Canada)
or the U.S. National Electrical Code (USA),or bs7671
(Europe) as well as local codes and regulations.
1 Electrical installation should be conducted by a qualified
electrician. Installers should be equipped with proper
personal protective equipment.
2 Always make sure the electric power is disconnected and
locked out before wiring the circulator.
File No: 10.791
Date: june 17, 2019
Supersedes: 10.791
Date: april 6, 2018
IN-LINE ECM CIRCULATING PUMPS
|
MODEL S
S55, 57, 69 AND H53, 54, 63 TO H67
|
INSTALLATION
AND OPERATING INSTRUCTIONS

installation &
operating instructions
In-line circulating
pumps
2
115V or 208-230V 1ph wiring - see
Appendix 1for more details
5.0 speed setting
The ecm motor operates in speed mode when connected to the
pump. You can adjust the demand of the motor manually using
the hmi Interface. The motor information and error code are
displayed in the Interface.
All interface details and future explanation can be seen in
Appendix 1.
6.0 0v to 10v dc control
0V to 10V DC control is available where the system allow, using
an external source and wiring. This input is for a linear closed-
loop speed control and a speed signal for speed monitoring,
which can greatly save on Energy consumption.
For more details please see Appendix 1.
7.0 lubrication
caution
Do not put oil in the maintenance free circulators.
These models contain MF in their item numbers and
are labelled: this bearing assembly contains perma-
nently lubricated bearings and does not need any
oiling or greasing.
Stop motor before lubricating, do not over-oil or spill oil on
resilient motor rings. Do not force oil into cups, and stop if cup
fills before addition of specified amount.
Pump lubrication
Only applicable for pumps those are with sleeve bearing sba
and have oil cup for lubrication.
Immediately after pump is installed and before
running, slowly add the oil (sae 30 non-detergent
regular, supplied with pump) to pump oil cup, located
on top of bearing bracket:
s69, h63 to h67 .....................................2oz.
At the start of each following heating season, lubricate with
sae 30 oil. Lubricate every six months for high temperature or
constant operation. Be sure oil is visible at the top and center of
window on side of bracket and maintain this level at all times.
Motor lubrication
caution
Stop motor before lubricating. Do not over-oil or spill
oil on resilient motor rings.
This motor has been lubricated properly at the factory. At
the start of each following heating season, however, on motors
with oil cups, add 15 drops sae 30 non-detergent oil to each
motor cup.
If the motor is fitted with grease fittings, follow the motor
manufacturer's recommended procedure. Motors without oil
cups or grease fittings are custom-greased for several years
operation and require little or no attention.
8.0 seal replacement
Remove the pump bracket from the body. Remove the impeller,
damaged seal assembly, ceramic insert and rubber cup. Clean
the recess in bearing bracket cover plate and install a new re-
tainer cup and ceramic insert. Check the condition of the shaft
sleeve. If scored, replace the shaft assembly. Otherwise, clean
shaft extension and polish sleeve with a fine crocus cloth, using
a rotating motion, if required.
Press against the coupler end of the shaft to take up play while
pressing new seal firmly against the stationary face. A slight
amount of clean vaseline may be put on shaft sleeve to assist
installation. Press down firmly and evenly, using two screw-
drivers and pushing against the four ears of driving band (the
metal ring around rubber bellows), or around top outer edge of
driving band on models s53, s57 and h53, h54.
Continue pressing against coupler end of shaft, re-mount
impeller and re-assemble the seal bearing assembly into body.
If necessary, install a new body gasket and clean gasket surface
of both volute and bracket.
connections
green/verde screw
ground

installation &
operating instructions
In-line circulating
pumps
3
caution
Before operating pump, carefully check:
1 Is the pump primed?
2 Is rotation correct?
3 Is pump properly lubricated?
4 Does the power supply agree with data on motor
name plate?
5 Is overload protection provided?
6 Is the system clean?
For domestic water systems use bronze body pumps.
For all other ecm motor details, troubleshooting, etc please see Appendix 1.
9.0 appendix 1
s&h ecm pump motor with user interface
1 perfectspeed® motor
The PerfectSpeed® ecm user interface developed by Arm-
strong easily integrates into non-communicating systems
using state-of-the-art technology. The motor is a high-ecient
Brushless dc (bldc) permanent magnet motor that oers
variable speed. Sensorless sine wave control assures quiet and
ultra-smooth performance.
important safety information
warning
shock hazard
To reduce the risk of fire or electric shock:
• Do not expose the motor or control unit to rain or
moisture.
• Do not separate the motor and control unit while
the motor is in operation.
warning
• Only trained and qualified professionals familiar
with PerfectSpeed® motors should service the mo-
tor and control unit.
• Before connecting or disconnecting cables or other
electrical connections, verify that the power to the
system is removed. Failure to comply may cause
serious damage to the motor or injury to personnel.
• Because of the risk of electric shock, only individu-
als thoroughly trained in the use of multimeters
should conduct voltage tests.
• Never touch the metal contacts on the multimeter
during a test.
• Always check testing equipment for proper opera-
tion before use.
warning
Installation, operation, and maintenance must be
performed by qualified personnel. Familiarization with
and adherence to the National Electrical Code (nec)
and National Fire Protection Association (nfpa) standards and
to local codes are required. It is important to observe safety
precautions to protect personnel from possible injury. Person-
nel should be instructed for handling each of the following:
• Insulate all connections carefully to prevent grounding or
short circuits. Reinstall all conduit and terminal box covers.
To avoid overheating and loss of performance, voltage to
the motor control unit must be within plus or minus 10% of
the nameplate voltage.
• Make sure the unit is electrically grounded and that proper
electrical installation wiring and controls are used consis-
tent with local and national electric codes. Refer to National
Electrical Code Handbook and nfpa No. 70. Employ
qualified electricians.
• Code requirements dier from state to state. Install equip-
ment in accordance with the applicable codes and ordinanc-
es in your area and in accordance with nec. All electrical
connections should be made and maintained by a qualified
or licensed electrician.
• Make sure there are no unusual noises or vibrations when
the motor is running.
• If noise and vibration are observed, refer to the appropriate
Troubleshooting section.
• Avoid contact with energized circuits or rotating parts.
• Provide proper safeguards for personnel against rotating
parts.
• All aspects of the installation must conform to the applica-
ble requirements of the nec, including Article 430 (Motor
Circuits and Controllers), as well as all local codes.
warning
Always disconnect electrical power at the fuse box or
circuit breaker before handling electrical connections
or performing maintenance on this unit. Allow the
motor to come to a complete stop and wait four (4)
minutes. This allows the capacitors to discharge any
residual voltage for safety.
Double-check to make sure the power is removed,
and that it is locked out while you are working on
the equipment.

installation &
operating instructions
In-line circulating
pumps
4
warning
A poor electrical connection can overheat and cause
terminal and/or terminal board failures. Examine the
wiring harness quick-connect terminals carefully for
any signs of physical deterioration or loose fit to the
terminals on the motor terminal board.
Care must be taken to assure connections are made
to the proper terminals and adequate electrical clear-
ances are maintained.
warning
The control unit on the motor contains potentially
hazardous voltage.
caution
Wear safety glasses to inspect the equipment while
it is running, especially if cover plates are removed.
notice
• Voltage symbols vary among dierent multimeters and
may be displayed as V AC, AC, V, or a V beneath a wavy
line. Select the correct symbol and set the multimeter to the
voltage closest to the voltage you are measuring.
• Read all instructions thoroughly and be familiar with the
equipment before installing or working on it.
• The PerfectSpeed® motor is properly packaged for ship-
ment and storage and should be kept in a clean and dry
indoor area.
Overview
The interface board communicates with the motor control to
operate the motor in speed mode. The operating parameters
are programmed in the eeprom of the motor control, not the
PerfectSpeed® User Interface. On power up the interface board
extracts the operating parameters from the motor control.
Parameter categories include:
• Motor direction
• Motor mode of operation
• Motor output display
• Motor profile
PerfectSpeed® user interface box
The PerfectSpeed® operates in speed mode when connected to
the pump. You can adjust the demand of the motor manually
using the PerfectSpeed® User Interface. The motor information
displayed in the User Interface is outlined in Table 1. If the
motor encounters a problem, the User Interface displays a
corresponding error code. These are outlined in Table 1as well.
Table 1– User interface display information
Control mode Data displayed
Speed
(speed feedback)
Spd – followed by the instantaneous speed in rpm
dE – followed by S + demand in %
Error Codes e1 – No communications
e2 – Under Voltage
e4 – Non- PerfectSpeed(r) Motor
Minimum and maximum operating parameters
The PerfectSpeed® motor operates properly within minimum
and maximum parameters. Your settings must be within these
ranges.
Table 2– Armstrong centrifugal pump & motor operating
parameters
Control mode Minimum Maximum
Speed 300 rpm s&h 5&6 series

installation &
operating instructions
In-line circulating
pumps
5
Input demand
There are two methods of setting the input demand using the
PerfectSpeed® User Interface box.
Table 3– Input demand options
Input demand
setting method
Definition
Set with On-Board
Potentiometer
The input demand can be set via the On-
Board Potentiometer. An external input is
not necessary.
Set with 0V to 10V
DC control signal
When an external controller is connected,
the On-Board Potentiometer should be
set fully ccw (0%). Otherwise, the actual
demand seen by the pump is oset by the
setting of the On-Board Potentiometer.
Connection diagrams
There are two methods of setting the Input Demand. See Table
3for definitions of the two options.
Table 4– Setting input demands options
set with on-board potentiometer
set with 0V to 10V DC control signal
AC line connections
Check to see if the line voltage matches the nameplate voltage.
connections
green/verde scre
w
ground
Configuration scenarios
This section provides examples of dierent configurations and
briefly describes how the motor operates under those conditions.
Operating parameters
Speed will change linearly based on the On-Board Potentiometer
or remote 0V to 10V DC signal. The graph below illustrates the
operation of a motor adjusted with the On-Board Potentiometer.
At 0.5V DC signal, the motor will come on at 300 rpm and
ramp linearly to 1800 rpm for ECM series circulators.
Adjusting pump speed (rpm) with on-board potentiometer

installation &
operating instructions
In-line circulating
pumps
6
Using 0V to 10V DC signal
2 troubleshooting
This section provides field technicians with a step-by-step
process for accurately diagnosing and troubleshooting dicul-
ties that may be experienced by nmc PerfectSpeed® motors
and the PerfectSpeed User Interface box. It does not override
or replace instructions suggested by the manufacturer of the
fluid circulating system.
To prevent misdiagnosis and unneeded repairs of the motor,
operators should try the steps listed in the Basic Troubleshoot-
ing of the Motor section first. If a problem still exists or there is
an ongoing issue after following the outline in that section, then
proceed to the Motor and Control Unit Diagnostics section for
additional testing instructions.
Basic troubleshooting of the motor
notice
• Always begin your inspection of the motor by stepping
through this section.
Motor is not spinning or runs abnormally
• Check the circuit breaker for trips or accidental shuto.
• Verify that the cables and power cord are securely con-
nected to the control unit connectors.
• Inspect for shorts, detached wiring, or loose connections.
• Inspect the control unit for broken or loose connectors,
moisture, excessive dirt, or other damage.
Motor rattles or makes excessive noise
• Inspect the motor and pump for accumulated dirt, internal
debris, or other signs of damage.
• Inspect the shaft and verify that the motor shaft spins freely
by hand in both directions without eort.
PerfectSpeed® motor and user interface
Motor is not running
If the PerfectSpeed® motor with User Interface isn’t running,
perform the following checks:
1 Ensure that both the PerfectSpeed® motor and User Inter-
face have proper line voltage for intended application.
2 Turn the User Interface on-board potentiometer fully clock
wise (100% demand) and check to see if the motor runs.
3 If 0V to 10V DC input is in use, disconnect the external input
from the User Interface and perform Check 2.
4
Check the digital read-out of User Interface for an error code:
Table 5 – User interface error codes
error
code reason action
e1 No
Communication
Remove power from both the PerfectSpeed®
motor and user interface for four (4) min-
utes, then reconnect power and test again.
Check the communication cable
connection between the PerfectSpeed® mo-
tor and user interface.
Check the continuity of the communication
cable (pin 1-1, pin 2-2 pin 3-4, and pin 4-3).
e2 Low Voltage This is a reading from the PerfectSpeed®
motor itself. Ensure that there is at least 71V
AC (for 115V AC applications) or 142V AC
(for 208-230V AC applications).
e4 Not a nmc
Motor
Connect to a nmc motor.
Motor and control unit diagnostics
Check 2: Electrical troubleshooting
1 Disconnect or remove power to the equipment being
serviced and allow four (4) minutes for the capacitors to
discharge any residual voltage.
2 Check the rotation and speed of the motor. Determine
if the motor can spin freely by hand without eort or as-
sisted means. If any binding occurs, replace the motor and
control unit.
3 Determine whether the system is wired for 120V AC power
or 240V AC power.
4 Disconnect the power cord from the connector on the
control unit. Inspect the power cord for bent, damaged, or
recessed wired and terminals [fig 1].
0-10Vdc Connector
part # D500400-301

installation &
operating instructions
In-line circulating
pumps
7
5 Disconnect or remove AC power to the equipment being
serviced and allow four (4) minutes for the capacitors to
discharge any residual voltage.
6 Proceed to Check 3.
Check 3: Motor verification
1 Disconnect or remove AC power to the equipment serviced
and allow four (4) minutes for the capacitors to discharge
any residual voltage.
2 Make sure that the motor shaft spins freely by hand without
eort in both directions [fig 2].
note: Replace the motor and control unit if the shaft does not spin freely
by hand without eort.
Final checks of the motor
• Check the mounting and fastening of the motor and control
unit. Make sure the motor and the control unit are securely
attached together and mounted tightly in the system.
• Check the control unit connectors. Inspect for shorts, de-
tached wiring, or loose connections
• Check the motor and verify the rotation of the driven load.
Make sure it spins freely by hand in both directions without
eort or assisted means.
• Check all circuit breakers.
3 glossary
The glossary contains definitions for acronyms and terms oc-
curring in the Operation, Configuration, and Troubleshooting
Manual or in the PerfectSpeed® User Interface.
ccw
Counter-clockwise direction. Motor rotation is viewed from the
lead end of the motor, not the shaft.
cw
Clockwise direction. Motor rotation is viewed from the lead end
of the motor, not the shaft.
dE
Demand. The set point of the motor.
ecm
Electronically Commutated Motor.
eeprom
Electronically Erasable Programmable Read Only Memory. A
memory chip in the control capable of retaining data when the
power supply is removed.
Inch Pounds (lb-in)
A unit of pressure resulting from a force of one pound-force
applied to an area.
init
Appears in the digital display on the PerfectSpeed® User Inter-
face when the motor is in the process of initializing.
Input
The controlling device, 0 to 10 volts (DC).
le
The end of the motor opposite the shaft extension from which
the rotation of the shaft and driven load are determined.
Max Power
The horsepower rating in watts delivered by the motor.
Max Speed
Maximum functioning speed of motor in Speed Mode.
Min Speed
Minimum functioning speed of motor in Speed Mode.
Max Torque
The torque point at the highest speed just below power limiting
of the motor.
fig 2
connections
green/verde scre
w
ground
fig 1

installation &
operating instructions
In-line circulating
pumps
8
Maximum Demand (%)
The highest value of operation relating to motor limits as de-
fined in the Motor Mode of Operation. It is represented as the
upper limit of the Y-axis in the Motor Profile graph.
Maximum Input (%)
The highest value of control method (on-board potentiometer,
or 0 – 10 vDC). It is represented as the upper limit of the X-axis
in the Motor Profile graph.
Minimum Demand (%)
The lowest value of operation relating to motor limits as de-
fined in the Motor Mode of Operation. It is represented as the
lower limit of the Y-axis in the Motor Profile graph.
Minimum Input (%)
The lowest value of control method (on-board potentiometer,
or 0V to 10V DC). It is represented as the lower limit of the X-
axis in the Motor Profile graph.
Message Timeout
A message referring to a communication failure between the
computer and motor.
Motor HP
The horsepower rating of the motor.
Motor flow Limit
A user-defined limit (in gpm) equating to 100% demand in flow
Mode of Operation.
Motor Ramp Rate
The time (in seconds) it takes the motor to go from 0 to maxi-
mum rpm as defined by the maximum operating parameters.
Also called motor slew rate.
Motor Speed Limit
A user-defined limit (in rpm) equating to 100% demand in
Speed Mode of Operation.
Motor Power Limit
A user-defined limit (in Watts) of output power. The parameter
cannot be less than 25% of the value in the Motor Table. Refer
to Appendix A: Motor Charts.
Motor Torque Limit
A user-defined limit (in lb – in) equating to 100% demand in
Torque Mode of Operation. The parameter cannot be less than
25% of the value in the Motor Table. Refer to Appendix A: Mo-
tor Charts.
nec
National Electric Code
nfpa
National Fire Protection Association
ntc
Negative temperature coecient
oem
Original Equipment Manufacturer
On-Board Potentiometer
The adjustment feature on the PerfectSpeed® User Interface.
pwm
Pulse Width Modulation.
Software Version
The version of the software in the motor.
Speed
The speed level measured in RPM.
Torque
The measure of how much a force acting on an object causes
that object to rotate.
V AC
Voltage in Alternating Current
V DC
Voltage in Direct Current
4 appendix a: motor charts
Maximum Speed/ hp depending on the model of the motor and
the horsepower rating.
ecm model motor
H-63 ½ hp / 1800 rpm
H-64 ¾ hp / 1800 rpm
H-65 1 hp / 1800 rpm
H-66 ¾ hp / 1800 rpm
H-67 1 hp / 1800 rpm
S-55 ½ hp / 1800 rpm
S-57 ¾ hp / 1800 rpm
S-69 1 hp / 1800 rpm

installation &
operating instructions
In-line circulating
pumps
9

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