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16900-3
CONTROLS

X, Allen-Bradley or approved equal. Relays with 30 ampere contact rating shall
be Square D, Class 8501, Type C or equal.

Pilot Duty Relays - Unless specifically noted otherwise, relays shall be general
purpose relays. General purpose relays shall be IDEC RH Series, 10A contact
rating, 4 Form “C” contacts, Allen-Bradley or approved equal, provided with
internal indicating light. Pilot duty control isolating relays for PLC inputs and
outputs shall be suitable for the application, and shall be submitted for approval
by Engineer.

Relays shall be electrically held, electrically operated with 120 volt coils except
as noted otherwise on the Drawings. Contacts shall be rated 600 volt, 10
ampere and shall be convertible from Normally Open to Normally Closed.
Where relays are used to control single-phase, fractional horsepower motors,
contacts shall be rated in accordance with the N.E.C. for the motor to be
controlled. Where relays are not installed within system control panels, provide
a suitable enclosure as specified in Section 16160, with NEMA ratings as
indicated on the Drawings.

Dry contacts used for instrumentation and SCADA inputs or other low current
inputs, shall be bifurcated cross bar gold overlay silver and rated dry circuit.
These contacts will be provided through dedicated interposing relays as shown
on the schematic diagrams of the Drawings or as specified herein. Relays shall
be provided with plug-in type sockets with screw terminal wiring connections
to facilitate relay change out and wiring. Relays shall be Potter and Brumfield
type KHAU-17A16 - 120 or 12V, IDEC, or approved equal as shown on
Drawing.

On-Delay & Off-Delay Timing Relays

1.

Solid State - Unless specifically noted otherwise, time delay relays shall be
general purpose time delay relays. General purpose time delay relays shall be
IDEC RTE, Potter-Brumfield, or approved equal.

Delay timing relays shall be solid state type rated for use at 120 volts. Contacts
shall be normally open (NO) or normally closed (NC) as detailed shown on the
Drawings or within the Specifications, and shall be rated 5 amperes (minimum).
Minimum time range shall be adjustable from 1 second to 1 minute. Other
ranges as required by function and as indicated on the Drawings or within the
Specifications. Where mounted external to control panels, delay timing relays
shall be provided with enclosures as specified in Section 16160, with NEMA
ratings as indicated on the Drawings.

Miscellaneous Indicating Lights

1.

Indicator lights shall be heavy duty, oiltight and designed to operate at 120
volts, 60 Hz AC. Indicator lights shall be provided with a chrome-plated metal
or anodized-aluminum mounting rings, engraved as indicated on the Drawings.
Lens color shall be as indicated. Indicator lights shall be 30 mm LED lamp
type, with “Push to Test” requirements to allow easy testing of bulb integrity.
Lights shall maintain NEMA rating of panel/enclosure.

Fuse Blocks

1.

Fuse blocks shall be rated for at least 30 amps and 300 volts. The clips shall be
high tensile spring brass, electro-tin plated. The base shall be polyester, glass
reinforced with a UL-94VO flammability rating.

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16900-4
CONTROLS

2. Atleast four spare sets of clips shall be provided on each fuse block and shall
be labeled “SPARE”.

3. Fuse block switches shall be din rail mounted.

4. Fuse blocks shall be Littlefuse Omni-block, Bussmann, or considered equal.

Terminal Strips

1. Terminal strips with box type connectors shall be supplied to make all power
and control connections. All terminals shall be clearly marked for easy
identification. A ground terminal strip shall also be provided. At least 20
percent of terminals supplied shall be spare. All wiring shall be terminated on
field terminal blocks.

Control Power Transformers

1. Supply all control power transformers necessary to make panel functional. All
transformers shall have both primary legs and all "hot" secondary legs fused.
One secondary leg shall be grounded. Fuse sizing shall be as recommended by
the equipment manufacturer for the particular installation.

2. Final sizing of the control power transformer shall be based on the application
and control equipment to be operated on this equipment. The
supplier/contractor shall review all system schematics and provide the
appropriate size CPT for each application. Oversized CPT will be required
where necessary for the installation.

Emergency Stop Pushbuttons (E-Stops)

1. Pushbutton control station shall be red, large mushroom-head maintained
switch with pull-on and push-off type. Provide multiple output contact type as
shown on the drawings. Device shall maintain the NEMA rating for area in
which it is being installed.

PART 3 - EXECUTION

3.1

INSTALLATION

A.

All items incorporated into the work shall be installed in accordance with the
Drawings and Specifications. Where detailed drawings or technical specifications
are not provided, the items shall be installed in accordance with the manufacturer's
preferred recommendations and confirming to the best practice of the trade
involved.

B. All installations shall be in accordance with the applicable sections of Division 11,
13, 14, 15 and 16 (where applicable).

TESTS

A. All items shall be factory tested.

B. Refer to section 16950 for additional testing requirements.

END OF SECTION

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16950-1

SECTION 16950

TESTING ELECTRICAL SYSTEMS AND START-UP

PART 1 - GENERAL

1.1

1.2

1.3

DESCRIPTION

A. Test and demonstrate, to the satisfaction of the Engineer, all electrical devices in
accordance with the following requirements. All testing and checkout of equipment
specified under this Section shall be performed by the electrical contractor.

B. During the checkout and startup period, the electrical contractor shall provide
sufficient personnel to aid with the start-up of all electrical equipment, to remove
any faults, and to make the necessary adjustments for the proper operation of
electrical equipment and installation.

C. A 1000 volt "megger" insulation test shall be available at all times during the testing
of power feeders and motor wiring and 2500 volt "megger" test for heat trace cable.

D. All electrical equipment, wiring, switches and insulators found to be defective or to

have failed due to poor workmanship shall be replaced promptly at no additional
cost to the Owner.

SUBMITTALS TO THE ENGINEER

A. All test data shall be officially submitted in the same manner outlined for submittal
shop drawings specified in Division 16 related sections.

B. _ It should be the Contractors responsibility to provide all required forms/direction as
to submittal procedures for this contract and to verify compliance prior to submitting
to the Engineer for review.

C. A record of all insulation values shall be properly recorded as listed in worksheet
attached to the back of the section. All time intervals shown shall be recorded for
each conductor being tested.

D. Ground testing results shall be properly recorded, witnessed, and reported to the
Engineer.

E. Acomplete binder and documentation of the results of all testing shall be submitted
for a final record of all testing and settings for the entire system. Five (5) hard bound
copies shall be submitted for final record. This shall be reviewed for final
compliance to this section and shall be required to be updated for final acceptance.

TESTING REQUIREMENTS

A. Prior to the start of check out and testing, insure that all equipment is properly and
permanently identified according to Section 16010.

B. Before energizing any electrical equipment or apparatus, thoroughly check all

equipment for the following:

1. All equipment and materials shall be clean, dry and free of foreign materials.

2. Vacuum clean to make free from filings, foreign matter or other materials left
inside equipment or enclosures. Particular attention shall be given to bus
conductors, conductors, terminal blocks, and windings.

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1.4

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Zr

16950-2
TESTING ELECTRICAL SYSTEMS AND START-UP

3. Check for tools inside equipment or enclosures. All screw, bolt, and terminal
connections shall be checked for tightness as specified by the equipment
manufacturer.

4. Check the bearings of all rotating electrical apparatus and, if required, have
supplier fill with the grease or oil as recommended by the manufacturers.

5. All motors, contacts, relays, bus, insulators and other electrical apparatus shall
be cleaned and dried out if required and/or needed. Drying out methods will be
such that the insulation temperature of the apparatus does not exceed 90°C.

Prior to applying voltage to any apparatus or circuit, make insulation resistance tests

and, if necessary, dry the apparatus until resistance values conform to the standards

of IEEE.

In case of a low resistance circuit insulation, eliminate the problem before the circuit

is energized.

Provide 1000 volt "Megger" insulation testing on all 600 volt feeder conductors and

motor power conductors. This shall include any and all of the existing electrical

feeder cables at the facility which shall remain and shall be reconnected. Motors
shall be meggered from the starters.

Provide 2500 volt "Megger" insulation testing for all heat trace cabling to be

installed at all locations as shown on the Drawings.

"Megger" test all required service feeder cables and circuit wiring at the existing

facility in their entirety and submit a complete test report. Test voltage shall be

applied until readings reach a constant value, and until three (3) equal readings, each
one (1) minute apart, are obtained. Minimum megger reading shall be 45 megohms
for feeder conductors.

Three phase panelboard’s line currents shall be balance to within 10% of each other.

Three phase motors shall be checked for rotation and, if necessary, reverse the

connections at the starter. Single phase and DC motors at motor connection box.

All main plant building loops and major equipment grounds shall be tested to remote

earth or directly referenced to an extremely low resistance (approximately 1 ohm)

reference ground bench mark. Tests shall be made with ground testing ohm meter
or "megger" approved by the Engineer for the purpose.

The Contractor shall provide load readings for all equipment, switchgear, motor

control centers and panelboards.

Panelboard line currents shall be balanced within 10%.

Test and set all motor circuit protectors, motor overload heaters to the nameplate

horsepower of the equipment; and all circuit breaker settings in all electrical

equipment shall be tested and verified operational.

Adjust all settings on protective equipment and verify, check and establish with the

power company that the secondary voltage is within 2% of rated voltage.

Provide and check all overload relays settings and sizing for all motors and submit

this data to the Engineer for final approval. This shall include settings and

adjustments to MCP devices for each motor starter.

DEMONSTRATION AND START UP

A.
B.

All equipment shall be properly identified as indicated in SECTION 16010.
When directed by the Engineer, demonstrate the total system operation and make
final adjustments to the system. If any system or piece of equipment within a system

13089K

ADAM FY NHN

EXHIBIT A
TABLE OF CONTENTS
GENERAL CONDITIONS

DEFINITIONS

PROFESSIONAL ENGINEER STATUS
STANDARD OF CARE

CIry OF NASHUA REPRESENTATIVE
CHANGES TO SCOPE OF WORK

CITY OF NASHUA COOPERATION

DISCOVERY OF CONFLICTS, ERRORS, OMISSIONS, AMBIGUITIES, OR

DISCREPANCIES

TERMINATION OF CONTRACT

DISPUTE RESOLUTION

NO DAMAGES FOR DELAY

INSURANCE

INDEMNIFICATION

FISCAL CONTINGENCY

COMPENSATION

COMPLIANCE WITH APPLICABLE LAWS
NONDISCRIMINATION

ENDORSEMENT

ASSIGNMENTS, TRANSFER, DELEGATION, OR SUBCONTRACTING

Ciry INSPECTION OF CONTRACT MATERIALS
DISPOSITION OF CONTRACT MATERIALS

PUBLIC RECORDS LAW, COPYRIGHTS, AND PATENTS
FINAL ACCEPTANCE

TAXES

NON- WAIVER OF TERMS AND CONDITIONS

RIGHTS AND REMEDIES

PROHIBITED INTERESTS

THIRD PARTY INTERESTS AND LIABILITIES
SURVIVAL OF RIGHTS AND OBLIGATIONS
SEVERABILITY

MODIFICATION OF CONTRACT AND ENTIRE AGREEMENT

CHOICE OF LAW AND VENUE
GC 1 of 13

GC--2
GC--2
GC--2
GC--3
GC--3
GC--3

GC--3
GC--4
GC--5
GC--6
GC--6
GC--7
GC--7
GC--7
GC--7
GC--8
GC--8
GC--8
GC--9
GC--9
GC--9
GC--10
GC--10
GC--10
GC--10
GC--10
GC--11
GC--11
GC--11
GC--11
GC--11

16950-3
TESTING ELECTRICAL SYSTEMS AND START-UP

fails to function properly, rectify such defects or inadequacies and make a final
demonstration as directed by the Engineer.

Provide the services of authorized manufacturers’ representatives to instruct the
Owner's representatives in the proper operation of each partial or complete system
installed under this Contract.

Pay all charges or fees, including the cost of any special test equipment, factory
engineers, etc. necessary for the proper performance of the specified tests,
demonstrations, and instructions.

All demonstrations and instructions shall be scheduled at the convenience of the
Engineer and the Owner and shall be scheduled with at least seventy-two (72) hours
written notice.

All control circuits shall be functionally checked to see that their operation and
sequence are correct. Any adjustable switches such as float switches, limit switches
and timers shall be adjusted for proper operation.

Just prior to acceptance of the lighting facilities, clean all lighting fixtures and
relamp where required at no additional cost to the Owner.

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APPENDIX A

16950-4

MEGGER TEST RESULTS
Project: Temperature:
Date: Weather:
Location: Test Equipment:
Equipment/feeder Under Test: Start Time: End Time:
Test Equipment: Make : Serial No.: Test Voltage:
05min 1 min 2 min 3 min 4 min 5 min 6 min 7 min 8 min 9min 10min PI.

Phase A-Gnd.

Phase B-Gnd.

Phase C-Gnd.

Phase A-PhaseB
Phase A-PhaseC
Phase B-PhaseC

Equipment/feeder Under Test: Start Time: End Time:
05min 11min 2 min 3 min 4 min 5 min 6 min 7 min 8 min 9 min 10 min PI.
Phase A-Gnd.
Phase B-Gnd.

Phase C-Gnd.
Phase A-PhaseB
Phase A-PhaseC
Phase B-PhaseC

Notes: Megger test only should record 5 minutes value...
Polarization Index (P.I_) is 10 min reading divided by | min reading
Note: Ifa neutral is provided, this will also need to be tested

END OF SECTION

13089K

APPENDIX A
Existing John Manville Roof Warranty

um

Johns Manville

Building Owner:
City of Nashua
9 Riverside Street
Nashua, NH 03062

Building Name:
Nashua Wastewater Treatment Facility
2 Sawmill Road
Nashua, NH 03060

Approved Roofing Contractor:
ROCKWELL ROOFING INC

PO BOX 479
LEOMINSTER, MA 01453

Peak Advantage Guarantee

PEAK AA OVANTAGE

Guarantee Number: BNE107300188

Expiration Date: December 18, 2030
Job Name: Nashua Wastewater Treatment
Facility

Date of Completion: December 18, 2015

Terms & Maximum Monetary Obligation to Maintain a Watertight Roofing System.

Years: 15 Year
Coverage:

$ No Dollar Limit

The components of the Roofing System covered by this Guarantee are:

Total Squares: 347

Membrane Insulation Type
Sec. _Sqs. Roof Type Spec. Layer 1 Layer 2 Layer 3 Cover Board
1 20 EPDM SE6A ENRGY 3
2 36 EPDM SE6A Invinsa
3 74 EPDM SE6A Invinsa
4 153 EPDM SE6A ENRGY 3 ENRGY 3
5 64 EPDM SE6A ENRGY 3
Accessories: Type Product Name Quantity
Expand-O-Flash (1) Style: 0 lin. ft.
Expand-O-Flash (2) Style: 0 lin. ft.
Expand-O-Flash (3) Style: 0 lin. ft.
Drains (1) Style: 0 ea.
Drains (2) Style: 0 ea.
Vents Style: 0 ea.
Fascia Style: 0 lin. ft.
Copings Style: 0 lin. ft.
Gravel Stop Style: 0 lin. ft.
Skylight System 0 ea.

These Johns Manville Guaranteed components are referred to above as the “Roofing System” and ALL OTHER COMPONENTS OF THE OWNER'S BUILDING ARE EXCLUDED
FROM THE TERMS OF THIS GUARANTEE, including any amendments thereto.

Johns Manville* guarantees to the original Building Owner that during the Term commencing with the Date of Completion {as defined above), JM will pay for the materials and labor
reasonably required in Johns Manville's sole and absolute discretion to repair the Roofing System to retum it to a watertight condition if leaks occur due to: ordinary wear and tear,
or deficiencies in any or all of the Johns Manville component materials of the Roofing System, or workmanship deficiencies only to the extent they arise solely out of the application
of the Roofing System. Non-leaking blisters are specifically excluded from coverage. Should any investigation or inspection reveal the cause of a reported leak to be outside the
scope of coverage under this Guarantee, then all such investigation and inspection costs shall be bome solely by the Building Owner.