SN169002exbA.doc

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Chiller Maintenance SN#169002
Solicitation number
0000000673
Issued by
Sonoma County, California

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This is a Scope of Work (Exhibit A) for Sonoma Developmental Center (SDC) detailing maintenance and service requirements for their chiller plant system. The contract covers preventive maintenance, improvements, and repairs for various equipment including York Chillers, Bacharach Monitoring System, cooling towers, and Building Automation System (BAS), requiring a qualified technician with minimum five years' experience. The contract term begins July 1, 2016, or upon Department of General Services approval, whichever is later. Services include monthly preventive maintenance, 24/7 emergency response within two hours, annual cleaning of cooling towers, tube cleaning, Eddy Current Analysis, vibration analysis, and chemical treatment services. The contractor must provide Garratt Callahan chemicals for water treatment and coordinate with Frank M. Booth for BAS maintenance.

The contract includes a $35,000 allowance for parts, service, improvements, and labor beyond regular maintenance duties. Parts will be billed at cost or at mutually agreed-upon prices. Chemical supplies required include twelve 55-gallon drums of 2009LT inhibitor, eight 55-gallon drums of 315 biocide, five 55-gallon drums of 305 sodium hypochlorite, four 55-gallon drums of silica inhibitor, and 500 pounds of 314-t BCDMH oxidizer biocide. The contractor is responsible for any additional chemical costs beyond these estimated quantities to maintain proper chemistry levels.

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Contractor

SN169002

EXHIBIT A

SCOPE OF WORK

1.

General Scope Contractor agrees to provide qualified technician or trades person with a minimum of five (5) years experience to perform preventive maintenance, improvements, and repairs of all the equipment listed. Proof of experience will be required at the discretion of the Chief of Plant of Operations III or designee prior to contract approval or commencing any work. This work will be performed to manufacturers’ specifications or as written in contract language.

2.

Project Representative

The Project Representatives during the term of this Agreement will be:

Sonoma Developmental Center (SDC)

Mario Pasquini, Chief of Plant Operations III, or designee

(707) 938-6401

Contractor

Contractor Phone

3. Equipment

a. York Chillers #1 MOD.# YKTHTDJ2-DAF W/VSD and #2 MOD. #YKTHJ2-DAF

b. Bacharach Monitoring System and related sensing equipment

c. Yaskawa Variable Frequency Drives (5)

d. B & G Air Separator

e. Wessels Expansion Tank

f. B & G Primary Chilled Water Pumps (8)

g. PEP Sand Filter System and related equipment

h. BAC Cooling Towers (2) and related equipment

i. B & G Suction Diffusers

j. B & G Circuit Setters

k. AHU Chilled Water Valves (8)

l. Evaporative Cooler (1)

m. Building Automation System

n. Motor Control Centers, (MCC), Ground Fault Interrupters (GFI), and electrical equipment o.

Building Automation System (BAS). Servicing and repairs of controlled equipment shall be provided by Frank M. Booth, the designer of the existing BAS system. This includes the commanded signals, monitoring, and sequencing of the following:

1.

CH -1 & CH -2

2.

CT -1 & CT -2

3.

CWP -1 & 2

4.

CHP -1 thru 6

5. Ventilation and Emergency Power Off (EPO) systems.

p.

In addition to the aforementioned, Contractor agrees to maintain, service, and repair all other associated equipment as needed to provide a fully functional and efficiently operating system.

4. Maintenance Schedule

Contractor agrees to provide regular monthly preventive maintenance, trouble shoot equipment, and provide all minor repairs in accordance with manufacturers specifications. Contractor shall submit a calendar outlining scheduled monthly, semi-annual, and annual preventative maintenance visits. This service and preventive maintenance will include the following:

a. Preventive maintenance will include but not be limited to lubrication, adjusting calibration and thoroughly checking equipment to ensure proper operations.

b. Any parts determined to be marginal or likely to fail or be defective, shall be replaced at no additional cost to the state, provided parts have not been damaged due to negligence.

c. Inspect all mechanical, electrical and electronic parts for evidence of wear and/or potential failure and replace as necessary.

d. All manufacturers specifications for preventive maintenance shall be performed at least once per year, at a time mutually agreed upon between Contractor and Project Representative. Annual maintenance services shall be performed during the months of November or December of each calendar year.

e. Contractor is to pull the supply end bells of the condenser tubes on each York Chiller and clean the tubes once per year at a time mutually agreed upon between Contractor and Project Representative.

f. Contractor is to pull the supply end bells of the evaporative tubes on each York chiller and clean the tubes once during the term of this contract. This shall occur during the second year of the contract pursuant to the terms of this agreement.

g. Contractor shall secure the services of an independent State licensed contractor for the purpose of conducting an Eddy Current Analysis, in the evaporator and condenser tubes for each York chiller, once during the term of this contract. These tests shall occur during the second year of the contract. Forward all Eddy Current Analysis results to the Project Representative or designee.

h. Contractor will be responsible for pulling end bells, providing and installing factory approved plugs in the event that it is determined by the Eddy Current tests and approved by the Project Representative that a specific run will be plugged.

i. Contractor is to have a vibration analysis performed on each of the chiller compressors and motors annually. Vibration analysis is to be performed by a certified analyst; proof of certification will be required upon request by the Chief of Plant Operations III or his designee. Tests are to be performed utilizing a CSI 2130 system or better, reports of the findings are to be submitted.

j. Cooling towers are to be drained and cleaned in entirety annually.

k. Contractor is to vacuum cooling tower pans monthly utilizing a Goodway vacuum system or approved equal, clean diverter pans of all debris, clean sand filter strainers and nozzles and verify their operation.

l. Evaporative cooler maintenance shall be performed annually and include but is not limited to pad replacement cleaning or descaling, belt replacement, cleaning sediment from pan, and verifying the water level is correct. Drain the pan in the winter months, refilling it and verifying its operations before the spring.

m. Replacement parts, fluids, gasses, or other components shall be direct factory/manufacturer replacements unless the Project Representative or designee approves a substitution.

5. Chemicals

Contractor agrees to furnish Garratt Callahan chemicals such as but not limited to:

a. 2010 Z (inhibitor)

b. 312 (45% glutaraldehyde) biocide formula

c. 3340 (stabilized bromine oxidizer biocide) biocide formula

d. 16/17 (silica closed loop inhibitor)

e. 314-T BCDMH (tablets)

f. 325 (biocide formula)

Contractor will furnish above chemicals in sufficient quantity as required at Sonoma Developmental Center to maintain proper inhibitor residuals and administer the required biocide doses as necessary for the duration of the two (2) year contract. Although consumption is expected to be similar to the previous contract usage (see below), changes (not limited to load, makeup quality, cycles of concentration, and equipment malfunction) can lead to increased usage beyond the estimated usage. Should additional GC Formula beyond the numbers shown below be required for water treatment at Sonoma Developmental Center to maintain proper chemistry in the cooling towers and chilled water loop, the costs will be the sole responsibility of the Contractor. Contractor shall provide receipts of said purchases to Plant Operations with monthly reports.

The Contractor will be responsible to establish contact with Garratt Callahan and arrange the following services as needed to verify and adjust chemical levels:

a. Weekly visits from June through October

b. Two visits monthly from November through May

c. Onsite inspections of the Chillers whenever needed or they are opened for PM

The following quantities are listed herein as examples for Contractor budgetary estimations only and are approximations based on past chemical usage. It is anticipated that these quantities will remain consistent through the life of the contract.

a. Twelve 55 gal drums of 2009LT(inhibitor with flurescent tracer (replaces 2010Z) b.

Eight 55 gal drums of 315 (isothiazoline non-oxidizer biocide) c.

Five 55 gal drums of 305 (12.5% Sodium hypochlorite oxidizer biocide) d.

Four 55 gal drums of 17 (silica inhibitor for closed chill loop) e.

500 lbs. of 314-t (BCDMH oxidizer biocide for floats to treat cooling tower sumps during stagnant periods).

6.

Emergency Calls

Contractor agrees to maintain an active telephone staffed for emergency calls twenty-four (24) hours a day, three hundred sixty-five (365) days per year. Contractor shall respond to emergency calls for repairs within two (2) hours. These calls are in addition to calls made for monthly inspections. Emergency calls shall be paid in accordance with Exhibit B of this contract.

7.

Contractor Sign In

Contractor agrees to sign in at Plant Operations Office upon arrival to perform monthly inspections and/or maintenance and repairs.

8.

Monthly Reports

a. Contractor agrees to provide a copy of all completed work, oil reports, and status report to the Project Representative.

b. Contractor agrees to provide monthly reports on chemical levels in both the closed loop and the open tower loop.

9.

Experience Contractor agrees to provide proof of five (5) years’ experience with 1425 ton or larger chillers, 100HP or larger motors w/VFD drives, DDC control systems, etc. References will consist of systems in operation.

10. Expectations

a. Contractor agrees to trouble shoot all problems and communicate their findings and needs for the continuous operation of all mechanical, electrical, and electronics systems necessary to SDC’s chiller plant operation.

b. Contractor shall notify the Project Representative if existing equipment, included or not included in this contract, related to the operation of the chillers, should fail or need repair. Contractor will be responsible for making contact with sub-contractors, or vendors, as needed in order to return or restore the affected chiller systems to a fully functional capacity. Contractor shall discuss repair options, procedures, and sub-contractors to be used with the Project Representative and obtain approval prior to making the repairs. Repairs as needed to associated equipment that may not be included in the scope of this contract shall be billed to the parts and service allowance. Contractor is to identify the service performed on each submitted invoice (i.e. annual service, specific service call, etc.).

c. Failure to provide all of the services as outlined, at the option of the State may be grounds for cancellation of this contract.

d. Sonoma Developmental Center reserves the right to specify specific staff, employed by the Contractor to perform any or all services on site.

11.

Parts & Service $35,000 will be added to the contract bid amount for parts, service, improvements, and labor as deemed necessary that may be required during the term of this contract. Parts will be billed at cost or at a price mutually agreed upon between Contractor and Project Representative. Labor will be billed at rates listed under Emergency Visits in Exhibit B.

12.

BAS Maintenance Schedule

All servicing and repairs to the BAS system shall be performed by Frank M. Booth, the designer of the existing BAS system. Contractor is responsible for contacting Frank M. Booth and is to submit a two (2) year schedule within thirty (30) days of being awarded the contract, outlining the specific dates that service is to be performed on the BAS system. Contractor is to have staff on site as needed to work with Frank M. Booth.

a.

Enterprise Level Service & Database Maintenance - 2 site visits per year (6 month).

1. Backup of Network Manager and PC databases with a copy on-site and a copy off-site (FMB).

2. Trend and log file maintenance.

3. Purging of PC archived data to CD.

4. Annual replacement of Network Manager and Raptor Controller batteries.

5. Physical cleaning of PC, Network Manager, and System Control Panel.

b.

Field Device Level Service & Calibration - 2 site visits per year (6 month).

1. Confirmations of component/system operation on a rotating basis as quarterly visits allow.

2. Focus on customer identified issues.

3. Valve actuators, temperature sensors, and pressure transducers.

4. Chilled water system function and sequencing.

5. Review of trended data as required to evaluate system operation and performance.

13.

Facility Orientation

Contractor agrees to attend, prior to the commencement of the contract, facility orientation at no additional cost. Orientation shall consist of an overview of SDC’s policies and procedures as they relate to the people who reside here. Orientation shall not exceed four (4) hours.

14.

Effective Date

The effective date of this contract is either July 1, 2016, or the approval date by the Department of General Services, whichever is later. No work shall commence until the effective date.

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