SOW 589A5-22-106.pdf

Colmery-O’Neil Veterans’ Administration Hospital Topeka, Kansas

Statement of Work: 589A5-22-106 Replace HVAC & Associated Components

Description of Work:

Contractor shall provide all supervision, tools, labor, materials, equipment, transportation, incidentals, and testing necessary to provide and install a new HVAC system and controls for Building 4 at Colmery O’Neil VA Medical.

The project includes, but is not limited to, general construction, alterations, mechanical and electrical work, necessary demolition, and removal of existing ductwork, fan coils, piping and condensate drains, air handlers, building controls including the server hardware and operating system software, ceilings, and certain other items necessary for completion and installation of new work. All work shall be performed in accordance with solicitation/contract terms and conditions, specifications and drawings, and all applicable VA and local codes.

Project is expected to be completed in several continuous phases, some of which can run concurrent at contractors’ option and with approval of the VA COR.

Period of Performance will be 540 calendar days after issuance of Notice to Proceed.

General Description and high-level view of the project phasing and general work associated with each phase.

A. Phase 1

Sub-Basement Mechanical Room B010 -

1. Remove existing chiller. Chiller is empty of refrigerant.

2. Remove existing condenser water piping and pump.

3. Remove existing heating water piping from existing changeover valve to existing wall mounted heat exchanger.

4. Remove existing heat exchanger, disconnect steam piping, remove condensate piping and traps and approximately 5 feet of condensate piping. Cap existing dual temp supply and return piping to demo’ d heat exchanger.

5. Install new heat exchanger 4-HE-1 near same location as demo’ d heat exchanger. Reconnect steam main to new exchanger. Connect new condensate traps and piping into existing condensate return.

6. Install two new heating water pumps 4-HWP-1 and 4-HWP-2 on existing chiller pad.

7. Install new heating water piping and specialties (i.e., air separator, expansion tank, etc.) between new heat exchanger and pumps and pipe to the above corridor ceiling.

8. Install all new controls for heating water system.

Basement Mechanical Room B07 –

1. Remove and replace two dual temperature existing pumps with new chilled water pumps 4-CHP-1 and 4-CHP-2 on existing pump pads.

2. Re-pipe existing chilled water supply and return piping and connect into temporary connections on new chilled water piping.

3. Install new chilled water supply and return piping to the above corridor ceiling.

4. Install all new controls for chilled water system.

5. Connect new MPS steam and condensate piping to existing and pipe to the above corridor ceiling.

Basement Corridor B0-C1, A0-C1, and C0-C1 –

1. Remove ceiling tiles as required for new chilled water, heating water, and MPS steam and condensate pipe installation. Coordinate pipe main locations with ductwork supply and return locations in future phases.

2. Install chilled water supply and return piping above corridor ceiling and up through 1st floor to 2nd Floor in two locations from supply and return mains. Valve and cap mains on 2nd floor for future phases.

Coordinate riser locations with ductwork riser locations in future phases.

3. Install heating water supply and return piping above corridor ceiling and up to 1st and 2nd Floors in two locations from supply and return mains. Valve and cap mains on each floor for future phases. Coordinate riser locations with ductwork riser locations in future phases.

B. Phase 2

Basement Mechanical Room B07 –

1. Remove existing air handler 4-HV-2 and associated outside air ductwork, supply air ductwork to corridor, steam and condensate piping, chilled water piping, valves, and controls.

2. Install new air handler 4-AHU B1, new outside air ductwork, supply and return ductwork to corridor, steam and condensate piping, chilled water piping, valves, and controls.

3. Remove existing basement corridor branch piping from new temporary chilled water piping to corridor and cap.

4. Install MPS steam and condensate piping above corridor ceiling and up to 2nd Floor in Room B08. Valve and cap on Second floor for future phase. Coordinate riser locations with ductwork riser locations in future phases.

Basement Corridor B0-C1, A0-C1, and C0-C1 –

1. Remove existing ceiling tiles and grid and existing light fixtures as required for demolition and new mechanical work.

2. In Corridor and Offices, remove existing supply ductwork, fan coils, dual temperature water piping, condensate drains, valves, controls, and thermostats.

3. Install new supply and return air ductwork, vav boxes with hot water coils, branch heating water piping, valves, controls, and thermostats in corridor and offices.

4. Re-install ceiling tiles and grid, refit existing fire sprinkler heads, re-install all existing devices (fire alarm, IT wireless connection points, existing lights, etc.) and new LED lighting after mechanical work is complete.

C. Phase 3

2nd Floor – A & C Wings

1. Remove ceiling tiles and grid and existing light fixtures as required for demolition and new mechanical work.

2. Cap Floor Wing supply duct at existing chase wall. Remove existing supply ductwork, fan coils, wall supply register, return duct from fan coil to wall penetration, dual temperature water piping, valves, controls, and thermostats.

3. Install new rooftop unit 4-RTU 21 and duct supply and return down to above 2nd floor ceiling.

4. Extend new chilled water supply and return, steam and condensate piping under roof deck and connect to rooftop unit. Install new valves and controls in unit.

5. Install new supply and return ductwork from rooftop unit down corridors, new vav boxes with hot water coils, branch heating water piping, valves, controls, with new thermostats in rooms and offices.

6. Re-install ceiling tiles and grid, refit existing fire sprinkler heads, re-install all existing devices (fire alarm, IT wireless connection points, existing lights, etc.) and new LED lighting after mechanical work is complete.

D. Phase 4

2nd Floor – B Wing

1. Remove ceiling tiles and grid and existing light fixtures as required for demolition and new mechanical work.

2. Cap Floor Wing supply duct at existing chase wall. Remove existing supply ductwork, fan coils, wall supply register, return duct from fan coil to wall penetration, dual temperature water piping, valves, controls, and thermostats.

3. Install new rooftop unit 4-RTU 22 and duct supply and return down to above 2nd floor ceiling.

4. Extend new chilled water supply and return, steam and condensate piping under roof deck and connect to rooftop unit. Install new valves and controls in unit.

5. Install new supply and return ductwork from rooftop unit down corridors, new vav boxes with hot water coils, branch heating water piping, valves, controls, with new thermostats in rooms and offices.

6. Re-install ceiling tiles and grid, refit existing fire sprinkler heads, re-install all existing devices (fire alarm, IT wireless connection points, existing lights, etc.) and new LED lighting after mechanical work is complete.

E. Phase 5

1st Floor – B Wing

1. Remove ceiling tiles and grid and existing light fixtures as required for demolition and new mechanical work.

2. Cap Floor Wing supply duct at existing chase wall. Remove existing supply ductwork, fan coils, wall supply register, return duct from fan coil to wall penetration, dual temperature water piping, valves, controls, and thermostats.

3. Install new rooftop unit 4-RTU 12 and duct supply and return down to above 1st floor ceiling. Some minor closet work in Room B223, floor and roof deck cutting, and a partial wall installed.

4. Extend new chilled water supply and return, steam and condensate piping under roof deck and connect to rooftop unit. Install new valves and controls in unit.

5. Install new supply and return ductwork from rooftop unit down corridors, new vav boxes with hot water coils, branch heating water piping, valves, controls, with new thermostats in rooms and offices.

6. Re-install ceiling tiles and grid, refit existing fire sprinkler heads, re-install all existing devices (fire alarm, IT wireless connection points, existing lights, etc.) and new LED lighting after mechanical work is complete.

F. Phase 6

1st Floor – A & C Wings

1. Remove ceiling tiles and grid and existing light fixtures as required for demolition and new mechanical work.

2. Cap Floor Wing supply duct at existing chase wall. Remove existing supply ductwork, fan coils, wall supply register, return duct from fan coil to wall penetration, dual temperature water piping, valves, controls, and thermostats.

3. Install new rooftop unit 4-RTU 11 and duct supply and return down to above 1st floor ceiling. Some minor closet work in Room C249, floor and roof deck cutting, and a partial wall installed.

4. Extend new chilled water supply and return, steam and condensate piping under roof deck and connect to rooftop unit. Install new valves and controls in unit.

5. Install new supply and return ductwork from rooftop unit down corridors, new vav boxes with hot water coils, branch heating water piping, valves, controls, with new thermostats in rooms and offices.

6. Re-install ceiling tiles and grid, refit existing fire sprinkler heads, re-install all existing devices (fire alarm, IT wireless connection points, existing lights, etc.) and new LED lighting after mechanical work is complete.

7. Remove existing air handler 4-HV 3, supply and outside air ducting, chilled water and steam piping associated with air handler from penthouse