PRA 502-21-110 Chiller 3 Replacement - Copy.pdf

Project Risk & Impact Assessment Date of Print Review: Demolition Start Date: TBD

Estimated Project Length: 240 Days Areas Effected by the Project:

Chill water plant

Required OSHA Training: (10hr, 30hr) Scope of Project: Project 502-21-110 Replacement

Chiller #3

Services Render Inoperative: Chiller # 3 Overall EOC Effect to Which Areas: Chiller Plant

High Interest Assessment Items

Construction Specific

Operational Impact

Team Involvement

X Noise Type: 111 Drilling 0 Blasting 111 Pounding 0 Heavy Equipment I Motors 0 Other:

Asbestos X High

Severity: 0 Low Mild 0 Moderate D High El Severe Duration: 0 Short Brief El Intermittent 0 Frequent CI Prolonged D Continuous

X Vibration Type: 0 Primary II Secondary Ll Other:

Access and Waiting Areas

Medium

Severity: %Low 0 Mild 0 Moderate 0 High CI Severe Duration: Short 0 Brief 0 Intermittent 0 Frequent CI Prolonged 0 Continuous

X ILSM X Infection Control Hazards

Low

X Air Quality Issues Type: LI Fumes M Dust 0 Mold 0 Smoke LI Chemicals Severity: LI Low D Mild 0 Moderate LI High 0 Severe Duration: LI Short 0 Brief 0 Intermittent 0 Frequent 0 Prolonged LI Continuous

Security Systems Impaired

X Utility Issues Type: IIIIVAC 0 Med Gas D Power M Water El Suction Impact: Modified Operational 0 Shut Down Duration: El Short LI Brief 0 Intermittent CI Frequent 0 Prolonged D Continuous

Overcrowding/Patient Flow

Impaired Access to Facility

Patient Care Effected

Comments

All employee notification on ISLM issued during the construction of this project

Trenching/Shoring/Holes X Heat or Flames

X Electrical Work

Limit Access to Care

X Overhead Hazards/Crain Operation (

Clinical Alarms Impairment

X Hot Work Permits

Generator Power

X Fire Plan Required X Equipment Modifications

X Fall Protection

Air/Oxygen/Suction (AOV)

X Lighting X Smoke Producing Operations

Portable Heaters X Weekly Inspections required

Access to IT closets

Access to IT data systems

Fire Wall Penetrations

VISN Notifications

Other Special Needs or Considerations Recommendations:

Chief Engineering Service: Date5 e• .3

Facilities Safety Manager Date:8-2- 43 Patient Safety Manager: 0 ,i4: )14-d..4.-c....4-v-a— Date: 3/FA,2_3

Date: AFGE Safety Representative: ' ' e-ir 11041144-Ate...

C Infection Control Nurse: (22_ 4) kt_e_-__jcz Date: 3

Date:34 1,3

Date: 0 -o8... 20 2

Green Environmental Manager:

Emergency Management:

ei s AAY----

Employee Health: - 1Th , 2I.1

Date:

Police Service: i Date: / Project C.O.R.: j -41.1 -- Date: __ . - r 0

Revised: 04/1

Alexandria VA MEDICAL CENTER

CONSTRUCTION PROJECT BLUE PRINT AND IN FIELD

SAFETY AND HEALTH ASSESSMENT RISK BASED CRITERIA

RISK CLASS PRECAUTIONS REQUIRED CONSTRUCTION ACTIVITY

CLASS

CLASS

II

Moderate or High Risk Patients

Only Low Risk Requires Class II

Precautions

Type A: Inspection and Non-Invasive Activities.

Includes, but is not limited to:

1. Small scale removal of ceiling tiles for visual inspection or minor installation.

2. Painting (but not sanding).

3. Wall covering, electrical trim work, minor plumbing, and activities that do not generate dust or require cutting of walls.

Type B: Small scale, short duration activities that create minimal dust.

Includes, but is not limited to:

1. Access to chase spaces.

2. Cutting of walls or ceiling where dust migration can be controlled.

3. Installation of telephone and computer cabling

Type C: Work that generates a moderate to high level of dust or requires demolition or removal of any fixed building components and assemblies or new construction.

Includes, but is not limited to:

1. Sanding of walls for painting or wall covering.

2. Removal of floor coverings, ceiling tiles, and casework.

3. New wall construction.

4. Uncontained duct, HVAC or electrical work above ceiling.

5. Major cabling activities.

6. Any other project where high levels of dust are generated.

1. Execute work by methods to minimize raising dust from construction operations.

2. Immediately replace a ceiling tile displaced for visual inspection.

1.Notify staff in the immediate area.

2. Provide active means to prevent airborne dust from dispersing into air.

3. Water mist work surfaces while cutting.

4. Seal unused doors with duct tape.

5. Block off and seal air vents.

6. Place dust mat at entrance/exit of area.

7. Contain construction waste before transport in tightly covered containers.

8. Upon completion, wipe work surfaces with disinfectant, wet mop and/or vacuum and remove isolation of HVAC system.

In addition to Class II Precautions above, 1.Obtain IC concurrence before construction begins.

2. Complete all critical barriers, i.e., sheetrock, plywood, plastic, to seal from non-work area or implement control cube method (cart with plastic covering/sealed connection to work site with vacuuming prior to exit) before construction begins.

3. Isolate HVAC system in area and maintain negative air pressure within work site.

4. Cover transport receptacles or carts.

5. Seal holes, pipes, conduits, and punctures.

6. Personnel required ensuring shoes are not tracking when leaving the work site.

7. Upon completion, do not remove barriers until inspected by Safety and IC and thoroughly cleaned by EMS. Remove barrier materials carefully to minimize spreading of dirt and debris.

Low or Moderate

Risk Patients Only

High Risk Requires Class ll

Precautions

Low or Moderate

Risk Patients Only

High Risk Requires Class III

Precautions

PATIENT RISK GROUP

Medium Risk Group

Administrative Offices Lobbies Public Corridors Elevators Day Rooms Canteen Retail Store

SPD Storage/Sterilization TB Negative Pressure isolation rooms Operating Room Urgent Care Morgue

Outpatient, Urgent Care and Primary Care Clinics Laboratory Radiology and Nuclear Medicine Physical Therapy Respiratory Therapy Pharmacy Food Services Interim Care and Medical Units

Alexandria VA MEDICAL CENTER

CONSTRUCTION PROJECT BLUE PRINT AND IN FIELD

SAFETY AND HEALTH ASSESSMENT RISK BASED CRITERIA

Project Start Date: TBD Location of Construction: Chiller Plant

Estimated Duration. 365 Days Contractor Performing Work:

Type A: Inspection, non-invasive, minor X Low Risk X Low Risk

Type B: Small scale, short duration, moderate levels. Medium Risk Medium Risk

X Type C: Major activity generates moderate to high levels of dust.

High Risk High Risk

INFECTION CONTROL PRECAUTIONS

TB Risk Assessment Base upon CDC Guidelines for preventing the transmission of TB in Health-Care Setting 2005

X Low Risk <3 TB Patients/year Inpatient & Outpatient

Medium Risk >3 TB Patients/year Inpatient & Outpatient

Potential on Going Transmission Evidence of ongoing M. Tubercubsis

Transmission regardless of setting.

Construction Site Location

X Low Risk: Administrative Offices, Lobbies, Public Corridors, Elevators, Day Rooms, Canteen Retail Store, Pharmacy and Food Services Mechanical Spaces

Medium Risk: Outpatient, Urgent Care and Primary Care Clinics, Laboratory, Radiology and Nuclear Medicine, Physical Therapy, and Respiratory Therapy

High Risk: SPD Storage/Sterilization, TB Negative Pressure isolation rooms, Operating Room, Morgue, Laboratory TB testing room

X Low risk: 0 - 37

Patient Population

Medium Risk: 38 - 75 High Risk: 76— 111+

Hospital Layout Medium Risk:

Building 7- Yellow team, Green team, Blue team, Dental, Radiology, Gold Team, Short Stay, Surgery, Women's Health, Rehabilitation Medicine, Cardiology Patient Services, Respiratory Therapy, Patient rooms Building 45 Building 9- Mental Health

Overall Risk Assessment

X Low risk:

Office Areas Lobbies/Corridors Mechanical Rooms And any other area with exceptions listed in the Medium or High risk

High Risk:

Urgent care Rm Endoscopy Rm Morgue Outpatient Surgery Pharmacy Recovery Surgical units Negative pressure rooms

X Low risk: No TB test required for this project. Medium Risk: Annual TB test is required by all construction workers for this project.

High Risk: TB test within 90 days prior to construction is required by all construction workers for this project.

1. Execute work by methods to minimize raising dust from construction operations.

CLASS 2. Immediately replace any ceiling tile displaced for visual inspection.

1. Provides active means to prevent air-borne dust from CLASS dispersing into atmosphere.

2. Water mist work surfaces to control dust while cutting.

3. Seal unused doors with duct tape.

4. Block off and seal air vents.

In addition to Class II Precautions above, CLASS

Ill 2. Complete all critical barriers or implement control cube

1. Obtain IC concurrence before construction begins.

method before construction begins.

3. Control airflow: Isolate HVAC system in areas where work is being performed and maintain negative air pressure within work site.

4. Cover transport receptacles or carts.

5. Place dust mat at entrance and exit of work area.

6. Contain construction waste before transport in tightly covered containers.

7. Upon completion, wipe work surfaces with disinfectant, wet mop and/or vacuum and remove isolation of HVAC system.

5. Seal holes, pipes, conduits, and punctures appropriately

6. Personnel are required to ensure shoes are not tracking dust and soil when leaving the work site.

7. Upon completion, do not remove barriers until inspected by Safety and Infection Control and thoroughly cleaned by EMS. Remove barrier materials carefully to minimize spreading of dirt and debris.

INTERIM LIFE SAFETY MEASURES

4 CLASS ACTIVITY ILSM PRECAUTIONS

CLASS

I

Minor: No breech of fire detection, alarm or fighting systems. No egress or access blockage.

None required beyond routine general safety precautions.

Ensure egress. Ensure access for Emergency forces.

Ensure operational Life Safety Systems.

Prohibit smoking.

ii

Moderate: Short-term breech of fire detection, alarm or fighting systems <a single work shift. Blockage of egress or access but second means available.

In addition to Class I ILSMs, apply at-the-site measures.

Notify staff in the immediate area.

Control combustible loads.

Repair/construction staff immediately available at the site.

Compensate for compartmentalization deficiencies?

Each single breech of fire barrier immediately replaced.

III

Major: Multiple or continuous breech of fire detection, alarm or fighting systems.

Blockage of egress or access. Work > a single shift.

In addition to Class I and II ILSMs, obtain Safety Manager concurrence before construction begins.

Construct temporary smoke tight barriers of non-combustible materials.

Provide additional fire fighting equipment.

Designate alternative exit/access routes.

Increase Hazard Surveillance.

Provide additional education to applicable Medical Center Staff/Incident Response Team Conduct 2 fire drills per shift in local areas vs. all areas.

Notify Emergency Forces.

INTERIM LIFE SAFETY MEASURE

LOCATION: REASON: ILSM Start Date:

ESTIMATED COMPLETION: ILSM Implemented: POC:

ILSM Problems/Issue(s):

ILSM Action(s) Taken:

MANDATORY ILSM SURVEY ITEMS STATUS

Item Yes No Comments

1. Exits free and unobstructed egress

2. Free and unobstructed emergency vehicle access

3. Fire alarm systems not impaired or equivalent

4. Temporary partition are smoke tight

5. Additional fire fighting equipment

6. Prohibit smoking

7. Ensure housekeeping standards

8. Two drills qtr where ILSM are evident

9. Increased hazard surveillance's

10.Training personnel of changes in procedures

11.0rganizational wide awareness of ILSM

ILSM Action Items from Above

Target Date Completion Date Problems Noted

Dates of Drills

COMMENTS:

Fire Plan Worksheet

Project Title & Project No:

Type of Project: El In-House El Purchase and Hire U Construction Contract

This worksheet completed by: The Risk Assessment Team

Date Completed: * Be sure to clearly mark/date addendum comments Updated #1: 3/8/2023 under Section 2 where updates are made Updated #2:

Updated #3:

SECTION 1

1. Will this project affect any of the following: If so details shall be provided for the corresponding numbered paragraph addressing the interim life safety measures that will be taken in Section 2

Item Yes No N/A

a. Exits or exit passageways.

X

b. Stairwells.

c. Storage space for construction materials. X

d. Heating devices shall be needed.

e. Temporary partitions shall be needed.

f. Fire extinguishing systems will be modified.

g. Fire/smoke partitions will be affected.

h. Fire/smoke detection systems shall be modified. X

i. Fire/smoke detection or extinguishing systems shall be down periodically. X

j. Fire/smoke doors and/or frames will be affected including automatic devices.

k. Access to the building from any entrance shall be periodically blocked.

I. Exterior distribution systems will be periodically shut down interrupting the building's service or backup sources.

m. Shall passageways for the physically handicapped be affected?

n. Shall emergency power to any of the following areas be affected?

1) Alarm systems.

2) Blood/bone and tissue storage units.

3) Egress illumination.

4) Elevators.

5) Emergency care areas.

6) Emergency communication systems.

7) Exit sign illumination.

8) Medical air compressors.

9) Medical/surgical vacuum systems.

10)Operating rooms.

11)Postoperative recovery rooms.

12) Special care units (CCU, MICU, SICU).

o. Shall emergency shutoff valves or isolation valve of any system be affected.

1) Inside work area only.

2) Adjacent occupied areas.

p. Shall modifications/additions require updating existing policies for emergency response/reporting actual procedures?

q. Will there be any work performed within "confined work spaces?" X

r. Shall HVAC systems be shut down during the construction work? X

s. If an "Engineered Smoke Control System" exists, will it be affected?

t. Shall the work require readying other space to relocate existing functions? X

u. If other areas are needed for domino moves, has each area been analyzed separately via attaching a completed work sheet to this plan for the other area(s)?

v. Shall any "Hot Work" activities be required during construction? X

w. Shall exterior excavation/trenching be performed during construction? X

x. Are any hazardous chemicals within the existing space? X

y. Are any flammable storage areas within existing space?

z. Will asbestos or asbestos containing materials be associated with this work?

FORM DISPOSITION: RETURN TO THE SAFETY STAFF FOR EVALUATION.

SECTION 2- SAFETY STAFF USE ONLY

(The following discussion for each item marked "Y" shall state interim measures to be taken or initiated).

Chief Engineering Servi e: Date: 3 1.,3'

Facilities Safety Manager: -,,e c_Vfle„.„, Date: 3 t-& Patient Safety Manager: f--1-6,,,,...e,-,e_swee,„1„..-.P Date:

AFGE Safety Representative: dor 4v4f/Asc c.... Date:

(Infection Control Nurse: 51,,„,„/...„,4_ ,7<f,,,,,,_ Date:

Date: W €1, 4,7 Date: 03 or. .20z5

Green Environmental Manager Emergency Management: 84 Employee Health: -4,..) pikoLL.1 Date:

Police Service: ,Z,Z_---- Date: 3 W z 3 Project C.O.R.: ,....* 4 '11.:57.-- Date: 3/J2?

Scope of Work — Replace Chiller #3

Background:

The Alexandria VA Medical Center has a requirement to replace chiller 3. Chiller 3 is a non-operational, 650-ton chiller located at the Alexandria VAMC central chilled water plant. Chiller 3 utilizes two pumps for flow: one as a chilled water pump and the other as a condenser water pump.

Existing Conditions:

The existing 1-story structure consists of a main building with one main space and smaller ancillary rooms. Structure of the building consists of a cast-in-place concrete elevated roof slab supported on load bearing CMU/brick veneer exterior walls. The floor is concrete slab-on-grade. Chiller #3 is a currently out of service 650-ton York chiller. It utilizes two pumps for flow, P-6 serves as the chilled water pump and P-7 which serves as the condenser water pump. Much of the existing chilled water piping associated with the chiller has damaged insulation.

Objective:

The successful execution of this project will require work to be done in the functional areas of structural, architectural, mechanical, and electrical. A qualified contractor is to be contracted to perform all work associated with the removal and reinstallation of new chiller 3 in accordance with all drawings and specifications and will effectively serve VA priorities, including:

• Range of capacities required to support VA hospital, pharmacy, residential facilities, employee workstations, and supporting facilities.

• Reliability under extreme conditions. These conditions include Louisiana climate, hurricanes, and other disasters, and VA emergency response and disaster relief efforts.

• Simplicity of operation.

• Ease of maintenance.

• Smooth integration into existing chiller plant.

Scope of Work:

I. Structural

a. Demolition

i. Partial demolition of existing wall to widen the existing opening

b. New Work

i. Install new HSS steel lintel

ii. Install new reinforcing steel in wall

II. Architectural

a. Demolition

I Demolition will be limited to the careful removal of the existing door, door frame, and widening of the opening to aid in the removal of existing Chiller #3. This includes the existing screen door and frame attached to the HM door frame. Door, frame, and hardware are to be salvaged and reinstalled after installation of new chiller

b. New Work

i. Repairs to existing CMU/brick and floor slab

ii. Addition of new aluminum louver sidelight to infill widened opening

III. Mechanical

a. Demolition

i. Complete removal of chilled water pump identified as 147 P-6 and remove inertia base. Patch and repair floor in preparation of new work

ii. Remove chiller #3 in entirety along with all control wiring, electrical wiring, and all appurtenances

iii. Removal of VFD for pump 147 P-6 and all appurtenances

b. New Work

i. Contractor to install new chiller in approximate location as removed. Reuse housekeeping pad and enlarge to fit new equipment. Reconnect all chilled water supply/return and condenser supply/return piping as indicated by mechanical piping plan drawings

ii. Contractor to install new chilled water pump in approximate location of existing. Contractor to provide new inertia base to support pump. Pump base to be grouted after final balancing and reconnect existing chemical treatment

iii. Remove and replace piping insulation to limits indicated on drawings

iv. Contractor to install new VFD for pump 147 P-6 and all appurtenances

IV. Electrical

a. Demolition

i. Electrical power connected to existing chiller and chilled water pump shall be demolished back to source. All exiting conductors and accessories to be demolished

ii. Conduits in concealed concrete walls to be abandoned, wiring in abandoned conduits to be demolished back to source

iii. Existing circuit breaker and disconnect switches to be demolished back to source

iv. Existing conductors shall be pulled back to the branch circuit protective device and such device shall be identified as a spare

v. Existing conduit shall be reused if adequate for the new circuit breaker to be installed

vi. Contractor to relocate pull box to accommodate for door widening. Final location to be determined in field.

Contractor shall extend and splice conduit from existing location to relocated location

b. New Work

i. A new 480V 3-phase 800A disconnect switch to be provided for new chiller. Disconnects shall be circuited to spare breakers or a new 1200A adjustable circuit breaker shall be provided in existing main distribution panelboard spaces that became available during demolition

ii. Electrical contractor shall provide all new conductors, conduits, and appurtenances required for complete installation of new mechanical equipment

iii. Should a larger circuit breaker be needed, new conduit and feeders shall be provided to serve the new mechanical equipment

iv. A new 480V 3-phase 200A VFD shall be provided for new chilled water pump. VFD to be circuited to spare breakers or a new 200A breaker shall be provided in existing MCC spaces that became available during demolition. Electrical contractor to provide all new conductors, conduits, and appurtenances required for complete installation of new mechanical equipment

v. All motors shall be provided with motor controllers and disconnect switches and major equipment will be provided with non-fused safety switches based on equipment nameplate data. All motor controllers/starters shall be a minimum of NEMA size 1

vi. All disconnect switches shall be heavy duty NEMA Type 1 V. Commissioning

a. VA to provide third party testing for complete system commissioning

b. Contractor shall demonstrate in the presence of VA's M&O, COR, and contracted NE that the system is a fully integrated control system

c. Contractor to provide a testing, adjusting, and balancing agent

(TAB).

Special Condition:

Prior to mobilization and commencement of any construction, the contractor shall conduct a mandatory thorough survey and investigation of all the work sites for the Replace Roof and HVAC System in Bldg. 3 Project. This survey and investigation shall include verifying all utilities within the sites where VAV units and pipelines are to be installed, all tie-in connection points, the depth, size and material of all piping and any structures that may conflict with the proposed construction. The contractor shall be responsible for choosing the process He/She deems necessary to employ that will provide the most accurate data of the existing conditions at these sites. Once this information is obtained, the contractor shall prepare a report listing all discrepancies, conflicts and remedies to all conflicts. This report shall be submitted as Submittal #1. The Resident Engineer/COR will review for technical feasibility. Once approved, the Contracting Officer will request a formal proposal for the corrective work. Approval of this cost proposal will be required prior to the commencement of any corrective construction.

Period of Performance

• All items outlined in this scope of work are to be completed within 180 days after the issuance of a notice to proceed from the Contracting Officer

Qualifications/Certifications

• The contractor must be qualified and have the required levels of professional and technical experience to perform the work required by this statement of work.

Safety Regulations

• All OSHA safety regulations shall be observed during the project.

• The VA Safety Officer shall have full authority to see that the contractor obeys all safety rules and regulations relative to the fulfillment of this project.

• Provide the necessary barricades/signage where required.

Scheduling and Hours of Work

• All work in areas involved shall be scheduled with the COR, Monday through

Friday, 0800 — 1600.