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Finance Committee - 07/07/2021 Page 19
Mayor Donchess

Is there anyone on from the School Department for the transit van?
Ms. Parkinson

HI, it is Kelly.

Mayor Donchess

OH Hi Kelly, alright good.

Ms. Parkinson

It’s just a change order.

Mayor Donchess

Do you need approval or is just information?

Ms. Parkinson

No it’s just an informational communication.

Mayor Donchess

Alright. So is there a motion to accept this and place it on file.

MOTION BY ALDERWOMAN LU TO ACCEPT THE COMMUNICATION AND PLACE IT ON FILE
MOTION CARRIED

UNFINISHED BUSINESS - None

NEW BUSINESS — RESOLUTIONS - None

NEW BUSINESS — ORDINANCES - None

RECORD OF EXPENDITURES

MOTION BY ALDERMAN HARRIOTT-GATHRIGHT THAT THE FINANCE COMMITTEE HAS COMPLIED
WITH THE CITY CHARTER AND ORDINANCES PERTAINING TO THE RECORD OF EXPENDITURES
FOR THE PERIOD FROM JUNE 11, 2021 TO JULY 1, 2021

MOTION CARRIED

GENERAL DISCUSSION

Alderwoman Kelly

So it occurred to me when we were talking about the fuel prices etc., it would be really interesting to have our
Energy Manager to come in and talk about sort of year-over-year, historically what we have been paying for
these and how, as we are shifting to electric and gas, how that has changed. Do you think that’s something
Doria can do?

Finance Committee - 07/07/2021 Page 20
Mayor Donchess

Definitely.

Alderwoman Kelly

I’d love to see that.

Mayor Donchess

Yes, definitely. Now | will try to remember that. Ms. Parkinson, did you hear that comment? Could you help
remember to make sure Doria comes in to take about energy prices?

Ms. Parkinson

Yes | can.

Mayor Donchess
That would be good.
Ms. Parkinson

Yes.

Mayor Donchess

| probably will remember but if | don’t you can be my back up. Any other general discussion? (There was
none.)

PUBLIC COMMENT - None

REMARKS BY THE ALDERMEN - None

NON-PUBLIC SESSION - None

ADJOURNMENT

MOTION BY ALDERMAN O’BRIEN TO ADJOURN
MOTION CARRIED

The Finance Committee meeting was adjourned at 8:04 p.m.

Alderman-at-Large Michael B. O’Brien, Sr.
Committee Clerk

City of Nashua

Purchasing Department

Administrative Services Division (603) 589-3330
229 Main Street - Nashua, NH 03060 Fax (603) 594-3233
July 7, 2021
Memo #22-148
TO: Mayor Donchess
Finance Committee
SUBJECT: Emergency Request for Raw Water Pump Variable Frequency Drives at the Wet Weather

Facility in the amount not to exceed $39,980 funded from accounts WERF

Please see attached communications from David Boucher, Superintendent of the Wastewater Department,
dated July 2, 2021 for project specific details related to this purchase. Below please find a summary of the
purchase approval request:

Item: Variable Frequency Drives for 4 Raw Water Pumps
Value: $39,980
Vendor: M&M Electrical of Nashua

Department: 169 Wastewater
Source Fund: WERF

Ordinance: Pursuant to NRO § 5-84 The competitive bidding process shall not apply to the
following special purchases: (1) Purchases required in the event of any emergency
as defined in § 5-90 which necessitates the immediate purchase of goods or
services.

The Division of Public Works: Wastewater and the Purchasing Department respectfully request your
approval of this contract.

Regards,
Kelly Parkinson

Purchasing Manager

Ce: D Boucher
C O'Connor

B\ THE CITY OF NASHUA “The Gate City’

"Division of Public Works
Wastewater Department
DATE: July 2, 2021
TO: Mayor James Donchess
FROM: David Boucher, Wastewater Superintendent
RE: Variable Frequency Drives, Wet Weather Facility

The Wet Weather Flow Treatment Facility (WWFTF) has four Raw Water Pumps
that move the wastewater and storm water through the WWFTF wet well and
into the rest of the Facility. These four pumps operate based on water level and
controlled by Variable Frequency Drives (VFDs).

One of the VFDs began to fault out about six weeks ago. We had all of them
looked at and it was determined they were obsolete, couldn’t be repaired, and all
would need replacement. We were proactive in getting quotes, hoping to get
them replaced before failure, however, we saw the first VFD fail completely on
June 30, which prevents us from using that Raw Water Pump. With three Raw
Water Pumps remaining, the WWFTF has no pump redundancy if the facility
receives flows greater than 40 MGD. With the three remaining VFDs in similar
condition and the potential to lose them at any moment, along with the 8-9 week
lead time, we are requesting an emergency PO in the amount of $39,980.00 to
M&M Electrical of Nashua, NH for the four VFDs needed to keep this critical
piece of infrastructure running. M&M Electrical of Nashua was the company
that provided us the lowest quote.

2 Sawmill Road * Nashua, New Hampshire 03060 + Phone (603) 589-3560 » Fax (603) 589-3474

Wet Weather Raw Sewage Pump Variable Frequency Drive Quotes

Company Quantity {Item Quote

Granite City 4 SQD ATV630C16N4 S 42,400.00
First Electric 4 ENG-Q1B1B361 S 49,596.00
M&M 4 SQD ATV630C16N4 S 42,000.00
M&M 4 SPX200A1-4A1N1 S 39,980.00

DATASHEET - SPX200A1-4A1N1

a. ae
- 4

Part no. SPX200A1-4A1N1
Catalog No. 125670
Alternate Catalog SPX200A1-4A1N1
No.
Delivery program
Product range
Part group reference (e.g. DIL)
Rated operational voltage U,
Output voltage with V, Us
Mains voltage (50/60Hz) Uin
Rated operational current
At 150% overload le
At 110% overload le
Assigned motor rating
Note
Note
Note
150 % Overload P
110 % Overload P
150 % Overload Im
110 % Overload Iu
Note
150 % Overload P
110 % Overload P
150 % Overload Im
110 % Overload Im

Degree of Protection

Fieldbus connection (optional)

Fitted with

Frame size

Connection to SmartWire-DT

Technical data
General
Standards

Certifications

Approvals

Variable frequency drive, 400 V AC, 3-phase, 132 kW, IP21, Radio
interference suppression filter, OLED display, FR9

kw
kw

HP
HP

E-TeN

Powering Business Worldwide"

Variable frequency drives
SPX

400 V AC, 3-phase
480 V AC, 3-phase
500 V AC, 3-phase

400 V AC, 3-phase
480 V AC, 3-phase
500 V AC, 3-phase

380 (-15%) - 500 (+10%)

245

300

For AC motors with internal and external ventilation with 50 Hz / 60 Hz

Overload cycle for 60 s every 600s
at 400 V, 50 Hz

132

160

231

279

at 440 - 480 V, 60 Hz
200

250

240

302

IP21

PROFIBUS-DP
PROFINET
EtherCAT
EtherNet/IP
LonWorks
CANopen®
DeviceNet
Modbus-TCP
Modbus-RTU
BACnet MS/TP

Radio interference suppression filter
OLED display

FRO

ho

Specification for general requirements: IEC/EN 61800-2
EMC requirements: IEC/EN 61800-3
Safety requirements: IEC/EN 61800-5-1

CE, UL, cUL, RCM
DNV

06/15/2021 Eaton 125670 ED2021 V80.0 EN

1/4

Production quality

Climatic proofing

Ambient temperature
Operating ambient temperature min.
Operating ambient temperature max.
operation (110 % overload)
Storage

Radio interference level

Radio interference class (EMC)

Environment (EMC)
Mounting position

Altitude

Degree of Protection

Protection against direct contact
Main circuit

Supply

Rated operational voltage

Mains voltage (50/60Hz)

System configuration

Supply frequency

Frequency range
Power section

Function

Output voltage with V,

Output Frequency

Switching frequency

Operation Mode

Frequency resolution (setpoint value)
Rated operational current

At 150% overload

At 110% overload

Fitted with

Frame size
Motor feeder

Note

Note

Note

150 % Overload

110 % Overload

Note

150 % Overload

110 % Overload
Control section

External control voltage
Reference voltage
Analog inputs

Analog outputs

Digital inputs

06/15/2021

Pw

fly

fly

Us

fp

fpwm

Af

°C
°C
°C
°C

Hz

Hz

Hz

kHz

Hz

kw
kw

HP
HP

RoHS, ISO 9001

< 95% relative humidity, no condensation, no corrosion, no dripping water

+50
-10 - +40

-40 - +70

C2, C3, depending on the motor cable length, the connected load, and ambient
conditions. External radio interference suppression filters (optional) may be
necessary.

1st and 2nd environments as per EN 61800-3
Vertical

0 - 1000 m above sea level
above 1000 m with 1 % performance reduction per 100 m
max. 3000 m

IP21
BGV A3 (VBG4, finger- and back-of-hand proof)

400 V AC, 3-phase
480 V AC, 3-phase
500 V AC, 3-phase

380 (-15%) - 500 (+10%)
AC supply systems with earthed center point
50/60

45-66 (+ 0%)

Variable frequency drive with internal DC link and IGBT inverter

400 V AC, 3-phase
480 V AC, 3-phase
500 V AC, 3-phase

0 - 50/60 (max. 320)

3.6
adjustable 1 - 10

Uff control
sensorless vector control (SLV)
optional: Vector control with feedback (CLV)

0.01

245
300

Radio interference suppression filter
OLED display

FRO

For AC motors with internal and external ventilation with 50 Hz / 60 Hz
Overload cycle for 60 s every 600s

at 400 V, 50 Hz

132

160

at 440 - 480 V, 60 Hz

200

250

24 V DC (max. 250 mA)

10 V DC (max. 10 mA)

2, parameterizable, 0 - 10 V DC, 0/4 - 20 mA
1, parameterizable, 0/4 - 20 mA

6, parameterizable, max. 30 V DC

Eaton 125670 ED2021 V80.0 EN 2/4

Digital outputs
Relay outputs
Assigned switching and protective elements

Power Wiring
Main choke

150 % overload (CT/Iy, at 50 °C)

Note regarding mains choke

Motor feeder
motor choke
150 % overload (CT/Iy, at 50 °C)
110 % overload (VT/I,, at 40 °C)
Sine filter
150 % overload (CT/Iy, at 50 °C)

110 % overload (VT/I,, at 40 °C)

Design verification as per IEC/EN 61439

Technical data for design verification
Rated operational current for specified heat dissipation
Heat dissipation per pole, current-dependent
Equipment heat dissipation, current-dependent
Static heat dissipation, non-current-dependent
Heat dissipation capacity

Operating ambient temperature min.

Operating ambient temperature max.

IEC/EN 61489 design verification
10.2 Strength of materials and parts
10.2.2 Corrosion resistance

10.2.3.1 Verification of thermal stability of enclosures

10.2.3.2 Verification of resistance of insulating materials to normal heat

10.2.3.3 Verification of resistance of insulating materials to abnormal heat

and fire due to internal electric effects
10.2.4 Resistance to ultra-violet (UV) radiation
10.2.5 Lifting
10.2.6 Mechanical impact
10.2.7 Inscriptions
10.3 Degree of protection of ASSEMBLIES
10.4 Clearances and creepage distances
10.5 Protection against electric shock
10.6 Incorporation of switching devices and components
10.7 Internal electrical circuits and connections
10.8 Connections for external conductors
10.9 Insulation properties
10.9.2 Power-frequency electric strength
10.9.3 Impulse withstand voltage
10.9.4 Testing of enclosures made of insulating material

10.10 Temperature rise

10.11 Short-circuit rating

10.12 Electromagnetic compatibility

10.13 Mechanical function

06/15/2021

ln A
Pyid Ww
Pyid Ww
Pus WwW
Puiss WwW
°C
°C

Eaton 125670 ED2021 V80.0 EN

1, parameterizable, 48 V DC/50 mA
2, parameterizable, N/O, 8 A (24 V DC) /8 A (250 V AC) /0,4A (125 VDC)

DX-LN3-300

Mains choke recommended only if the power quality is poor. Current harmonics
(THD) are attenuated by internal DC link chokes.

DX-LM3-260

DX-LM3-303

DX-SIN3-250

DX-SIN3-440

245

3300

50

Operation (with 150 % overload)

Meets the product standard's requirements.
Meets the product standard's requirements.
Meets the product standard's requirements.

Meets the product standard's requirements.

Meets the product standard's requirements.

Does not apply, since the entire switchgear needs to be evaluated.
Does not apply, since the entire switchgear needs to be evaluated.
Meets the product standard's requirements.

Does not apply, since the entire switchgear needs to be evaluated.
Meets the product standard's requirements.

Does not apply, since the entire switchgear needs to be evaluated.
Does not apply, since the entire switchgear needs to be evaluated.
Is the panel builder's responsibility.

Is the panel builder's responsibility.

Is the panel builder's responsibility.
Is the panel builder's responsibility.
Is the panel builder's responsibility.

The panel builder is responsible for the temperature rise calculation. Eaton will
provide heat dissipation data for the devices.

Is the panel builder's responsibility. The specifications for the switchgear must be
observed.

Is the panel builder's responsibility. The specifications for the switchgear must be
observed.

The device meets the requirements, provided the information in the instruction
leaflet (IL) is observed.

3/4

Board of Aldermen — 12/12/17 Page 10

NEW BUSINESS — RESOLUTIONS

R-17-161

Endorser: Mayor Jim Donchess

AMENDING NASHUA RAIL TRANSIT COMMITTEE
Given its first reading;

MOTION BY ALDERMAN O’BRIEN THAT THE RULES BE SO FAR SUSPENDED AS TO ALLOW FOR
THE SECOND READING OF R-17-161
MOTION CARRIED

Resolution R-17-161 given its second reading;
Alderman O’Brien

This resolution amends the National Rail Transit Committee by eliminating disbandment, and changes the date
from 120 days of the committee’s formation to June 30, 2018, relative to providing the guidance to the city, and
further making explicit that the committee should be working with the Boston Surface Rail Company.

MOTION BY ALDERMAN O’BRIEN FOR FINAL PASSAGE OF R-17-161
MOTION CARRIED

Resolution R-17-161 declared duly adopted.
NEW BUSINESS — ORDINANCES — None
PERIOD FOR GENERAL PUBLIC COMMENT - None

REMARKS BY THE MEMBERS OF THE BOARD OF ALDERMEN

Alderman Lopez

| would just like to announce that for the third year, we’re doing a holiday decorating contest for veterans and
we could use just a few more people to donate gift cards as prizes. And then, additionally, | just wanted to
comment that | received constituent feedback regarding the trolleys that the Nashua city bus is using. There is
concern that with the new buses coming online, the trolleys should be looked at as less useful than some of
the buses being decommissioned, especially during the winter and holiday when there’s snow, ice, there’s a lot
of water in the buses from the snow and ice melting off their boots. The trolleys have steps that you have to
climb up and down that are kind of difficult for people with mobility issues who may not be in a wheelchair and
may need to use the steps, but may not necessarily feel safe, a those steps are particularly steep. So the
constituent was expressing concern that we haven't considered just using the existing bus fleet that we have
that we’re decommissioning, rather than the trolleys, for the larger volume routes where there may be a lot of
people shopping or traveling to and from. | just wanted to make that comment.

Alderman O’Brien

First, I’d like to start off with an apology to Alderman Caron. | did not make the December 2™ event at the
senior center. Unfortunately, it comes once a year, | traversed another year on the planet; it was my birthday. |
had the opportunity to spend time with family. | should have probably gone to the breakfast and enjoyed that
as well, but my apologies.

Second, | would like to echo the Mayor’s sentiments about the firefighters. Every single year they do the
Christmas baskets to needy families and the coats for the kids. | really want to say thank you. | know | am
biased to it and have been part of it for the 35 years | was on the job, but thank God the tradition continues and
the good work that they do.

Approvals

Product Standards

UL File No.

UL Category Control No.

CSA File No.

CSA Class No.

North America Certification
Specially designed for North America
Suitable for

Max. Voltage Rating

Degree of Protection

Dimensions

O9mm(204)
eo iy a $
C
| 2
El =
| €
a B
= ry
_ 400 mm (15.8") _ oan
— 2 a porn |
as 440 mm (189°) |

Additional product information (links)

Documentation

06/15/2021

UL 508C; CSA-C22.2 No. 14; IEC/EN61800-3; IEC/EN61800-5; CE marking

E134360

NMMS, NMMS2, NMMS7. NVMS8

UL report applies to both US and Canada

3211-06

UL listed, certified by UL for use in Canada

No

Branch circuits

3~ 480 V AC IEC: TN-S UL/CSA: "Y" (Solidly Grounded Wey)

IEC: IP21
8 o
o
o
o

o o /

340 mm (13.47)

362 mm (143°)

Eaton Industries GmbH
http://Awww.eaton.eu

© 06/2021 by Eaton Industries GmbH

Eaton 125670 ED2021 V80.0 EN

-.

@s ron (C204)

@ 18mm
(2 O.7")

146-kg
a (321.9 Ibs)

http://www.eaton.eu/Europe/Electrical/ProductsServices/AutomationContro…
Switching ProtectingDrivingMotors/9000X/S PX9000/index.htm#tabs-4

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