Attachment 2D - SOW (Bldg 2020 2008).pdf

SECTION 01 11 00

STATEMENT OF WORK

December 9, 2019

CONSTRUCTION

RFP Final Date: January 14, 2020

1. GENERAL DISCUSSION

1.1. Project Identification

1.1.1. Project Title: Replace Domestic Hot Water (DHW) Heaters, BLDG 2020A-D and 2008A

1.1.2. IJO Number(s): DER191199J

1.1.3. Project Package Number(s): PS2009

1.2. Description of Work

1.2.1. The contractor shall supply all supervision, labor, equipment, and materials to perform all work in strict accordance with the umbrella contract, this statement of work, and identified drawings to replace the domestic hot water heaters in BLDG 2020A-D and 2008A

1.3. Area Description

1.3.1. Location

1.3.1.1. BLDG 2020 is located along N 4th Street. BLDG 2008 is located along N 3rd Street, JBLM-Main

1.3.2. Known Existing Site Conditions

1.3.2.1. BLDG 2020 is three story occupied barracks with 4 mechanical rooms A, B, C,& D along the east side of the building. Access is either through the basement hallway or the outside stairwell with a metal door cover. Door opening is approximately 48” wide. Doors and covered doors are locked with a DPW750 core. Mechanical rooms A-C will be replaced with a new hot water heating system (heater and tank). Mechanical Room D has two 300 gallon AO Smith heaters.

Only one (failed heater) will be replaced.

1.3.2.2. BLDG 2008 is a three story occupied admin building. The domestic water heater in Mechanical room A will be replaced with a new 100 gallon hot water heater.

1.4. Principal Items To Be Accomplished

1.4.1. Base Item CLIN 0001. Replace Domestic Hot Water Heaters (DHW) BLDG 2020 Mechanical Rooms A, B, & C, JBLM –Main

1.4.1.1. Due to building being occupied, the contractor shall sequence the removal of the two existing heaters and storage tank for the replacement to the new single heater system. Outages are acceptable once approved and should be kept to 0900-1500 weekdays.

1.4.1.2. For mechanical rooms A-C, remove existing failing two DHW heaters, ~325 gallon storage tank, piping, fittings, flue, and electrical as required to install new DHW heater and storage tank. All recycled materials and waste shall be documented per the DPW CD Diversion and Disposal Reporting Instructions 032612. All piping and electrical not to be reused by the new water heating system shall be removed.

Mechanical Rooms shall be broom cleaned following demolition and before government final inspection.

1.4.1.3. Install new 4” poured concrete equipment pad for heater and storage tank if equipment is not on metal skids. Size to be determined by equipment with 4” of edge clearance. Edges shall be chamfered.

Equipment shall be securely anchored.

1.4.1.4. For each of the three mechanical rooms install one (1) new 1,250 MBH input, 1,225 MBH output, 98% efficiency condensing gas fired domestic hot water heater with new 400 gallon storage tank. Install per manufacturer’s installation manual and Attachment #1 - DHW Heater Install. Maintain clearances around and over equipment and arrange all electrical conduit, piping, and flue vent, with clearances for service of all equipment.

a. Hot water heater specifications include: (an example that meets these requirements is the Thermal Solutions AMPW1250):

(1) ASME 316L Stainless steel water tube heat exchanger

(2) Low waterside pressure drop

(3) Stainless steel mesh pre-mix burner

(4) Direct Spark Ignition and UV Scanner

(5) Full Modulation, 5:1 Turndown Each

(6) Boiler Control with 7” Color Touch Screen.

(7) Manual Reset High Limit Temperature Control

(8) Water Flow Switch

(9) Manual Reset Probe Type Low Water Cutoff

(10) Manual Reset High & Low Gas Pressure Switches

(11) Supply & Return Temperature Sensors

(12) Flue Gas Temperature Sensor

(13) Condensate Trap

(14) Vent Outlet & Air Intake Connections

(15) 120/60/1 Electrical Power Strike

(16) <10 PPM NOx

b. Install the following on site:

(1) ASME Safety Relief Valve

(2) Temperature Gauge

(3) Alarm and Silence Switch

(4) Condensate Neutralizer

(5) Storage Tank Sensor

(6) LONworks Communication Card

c. The 400 gallon storage tank shall have 2 circulating connections, NPT temperature fittings, cold water inlet, hot water outlet, manway, drain, and relief valve. specifications include (an example is the PVI L-

400A-TR

(1) Storage tank shall be ASME stamped

(2) Vertical

(3) unlined duplex alloy of austenitic and ferritic steels

(4) capable of 200°F

(5) lead free

(6) 2” of insulation with metal jacket,

(7) 25 year warranty.

d. Install all piping, isolation valves and components listed above and on Attachment #1. All DHW piping and drain lines shall be full size copper pipe unless otherwise specified. Unions shall be brass or bronze. Soldered joints shall be made with flux and are only acceptable for lines 2 inches or smaller.

Piping shall be new and clean. All isolation valves shall be full port ball type with stainless steel trim.

e. Install new vertical 34 gallon ASME diaphragm expansion tank. Tank shall be for potable water, antimicrobial polypropylene liner with anti-legionella protection. Maximum working pressure of 150 psig and max operating temp of 200F. Air valve shall be a Schrader with EPDM seat. An example meeting these requirement s is Amtrol THERM-X-TROL ST-70VC.

f. Heater pump shall be inline bronze/stainless steel flange type, UL approved, and sized for a 20°F temperature rise maintaining proper flow to heater.

g. Install condensate trap assembly with factory neutralizer on flue and heater drain. Silicone tubing shall be reinforced with braided mesh (Silbrade tubing) and piped to the floor drain to prevent collapsing or pinching.

h. Install schedule 40 natural gas piping to unit’s gas train inlet to include; low point drain, main gas and pilot light regulators, isolation ball valves and piping to atmosphere.

i. Install flue venting per manufactures’ requirements. Do not use PVC or dissimilar metals. Flue are typically vented to a common venting system.

j. Insulated all exposed (new and existing) HW piping with 1.5” cellular glass insulation (ASTM C 552) and factory protective jacket. Corners shall have PVC jacket. Seal the ends of pipe insulation with brush coat of waterproof vapor barrier coating. Piping shall be properly supported and fixed.

k. Install name and directional labeling on each type of piping.

1.4.1.5. Connect mechanical room hot water systems to the building’s existing JBLM base wide Energy Management System.

a. Install all material (controllers, conduit, wiring) to carry out the sequence of operation in Attachment #1.

(1) Install new EMCS temperature sensor in storage tank to enable heater. Set on-board heater controls to operate pump between tank and heater once enabled. Install EMCS temperature sensors on supply/ return lines to/from heater. Set point for storage tank is 140°F.

(2) The buildings EMCS shall monitor heater showing command / status of heater, status of heater pump, and building return pump.

(3) Create EMCS graphical user interface to match new hot heating system to include links between floor plans, building equipment lists.

1.4.1.6. Install one Emergency Stop at entrance to mechanical room. Connect hot water heater and existing boiler for one Emergency Stop. Button shall cut power to heater not through controls.

1.4.1.7. Perform Performance Verification Testing (PVT) of the Hot Water System with government representative after providing PVT checklist in submittal format. Contractor to make adjustment as required by government representative to meet JBLM EMCS Standard 230923.

1.4.1.8. Install durable identification tag for DHW Heater matching EMCS graphics.

1.4.1.9. Install a laminated warranty tag; stating contractor’s name, contract number, government point of contact with phone number, date of install, and warranty dates. Attach with zip tie on equipment in noticeable location and completed before government final inspection.

1.4.1.10. Install an O&M manual metal holder or plastic tote on or near heater, properly labeled “DHW Heater O&M”. Complete extend tank warranty information with manufacturer. Place all government approved Operation & Maintenance in holder and broom clean mechanical room before final government inspection.

1.4.1.11. Perform heater start up and tuning by manufacturer’s representative with DPW present for safety checks in accordance with the manufacturer documentation.

1.4.1.12. The heater shall be inspected and tested by a Washington State Boiler Inspector with Washington State boiler inspection certificate

1.4.2. CLIN 0002 – Replace Domestic Hot Water Heater (DHW) BLDG 2020 Mechanical Room D JBLM –Main

1.4.2.1. For Mechanical Room D, demolish (1) failed 300 gallon A.O. Smith DHW heater. The other heater shall remain. All recycled materials and waste shall be documented per the DPW CD Diversion and Disposal Reporting Instructions 032612. All piping and electrical not to be reused by the new water heating system shall be removed. Mechanical Rooms shall be broom cleaned following demolition and before government final inspection

1.4.2.2. Install one (1) new condensing, natural gas, 92% efficient, 220 gallon, 500 MBH input, low NOx, natural gas domestic hot water heater. Install per manufacturer’s installation manual in existing failed heater’s location. Maintain clearances around and over equipment and arrange all electrical conduit, piping, exhaust vent, and air intake with clearances for service of all equipment. Install condensate neutralizer.

a. Hot water heater specifications include: (an example that meets these requirements is the A.O. Smith Large Volume BTHL-500A):

(1) Touch screen display with built in diagnostics, run history and precise temperature control adjustable from 90-180ºF

(2) Modulating down fired gas burner that adjusts the input based on demand

(3) Submerged combustion chamber with helical coil heat exchanger with 619 gph recovery at 90F temperature rise

(4) Powered anodes

(5) Seamless glass lined tank

(6) High efficiency top mounted modulating powered burner

(7) ASME certified tank construction

b. Install all new piping from existing isolation valves and components per manufacture’s installation requirements. All DHW piping and drain lines shall be full size copper pipe unless otherwise specified.

Unions shall be brass or bronze. Soldered joints shall be made with flux and are only acceptable for lines 2 inches or smaller. Piping shall be new and clean. All isolation valves shall be full port ball type with stainless steel trim.

c. Install schedule 40 natural gas piping to unit’s gas train inlet to include; low point drain, main gas and

d. Install flue venting per manufactures’ requirements. Do not use PVC or dissimilar metals. Flue are typically vented to a common venting system with boiler.

e. Insulated all exposed (new and existing) HW piping with 1.5” cellular glass insulation (ASTM C 552) and factory protective jacket. Corners shall have PVC jacket. Seal the ends of pipe insulation with brush

f. Install name and directional labeling on each type of piping on both heaters.

1.4.2.3. Connect mechanical room domestic hot water systems to the building’s existing JBLM base wide Energy Management System.

a. Install status sensor on both heaters and temperature sensor in the common supply piping between both heaters. Include all controllers, conduit, wiring, and communication wiring.

(1) Heater’s existing control system shall operate heater. Set to water temp to 140ºF

(2) The buildings EMCS shall monitor heater showing status of heater.

(3) Create EMCS graphical user interface to match new hot heating system to include links between floor plans, building equipment lists.

b. Perform Performance Verification Testing (PVT) of the Hot Water System with government representative after providing PVT checklist in submittal format. Contractor to make adjustment as required by government representative to meet JBLM EMCS Standard 230923.

1.4.2.4. Install durable identification tag for DHW Heater matching EMCS graphics.

1.4.2.5. Install a laminated warranty tag; stating contractor’s name, contract number, government point of contact with phone number, date of install, and warranty dates. Attach with zip tie on equipment in noticeable location and completed before government final inspection.

1.4.2.6. Install an O&M manual metal holder or plastic tote on or near heater, properly labeled “DHW Heater O&M”. Complete extend tank warranty information with manufacturer. Place all government approved Operation & Maintenance in holder and broom clean mechanical room before final government inspection.

1.4.2.7. Perform heater start up by manufacturer’s representative with DPW present for safety checks in accordance with the manufacturer documentation.

1.4.2.8. The heater shall be inspected and tested by a Washington State Boiler Inspector with Washington State boiler inspection certificate.

1.4.3. Base Item CLIN 0003. Replace Domestic Hot water Heater (DHW) BLDG 2008A, JBLM – Main

1.4.3.1. For Mechanical Room A, remove existing failing two DHW heaters, ~325 gallon storage tank, piping, fittings, flue, and electrical as required to install new heater. All recycled materials and waste shall be documented per the DPW CD Diversion and Disposal Reporting Instructions 032612. All piping and electrical not to be reused by the new water heating system shall be removed. Mechanical Rooms shall be broom cleaned following demolition and before government final inspection.

1.4.3.2. Install new 4” poured concrete equipment pad if heater does not have skids. Size to be determined by equipment with 4” of edge clearance. Edges shall be chamfered. Equipment shall be securely anchored to the pad.

1.4.3.3. Install one (1) new 100 gallon 150 MBH input, 95% efficiency condensing natural gas fired certified domestic hot water heater. Install per manufacturer’s installation manual. Maintain clearances around and over equipment and arrange all electrical conduit, piping, flue vent with clearances for service of all equipment.

a. Hot water heater specifications include: (an example that meets these requirements is the A.O. Smith cyclone Mxi Modulating BTH-150).

(1) Touch screen display with built in diagnostics, run history and precise temperature control adjustable from 90-180ºF

(2) Modulating down fired gas burner that adjusts the input based on demand

(3) Submerged combustion chamber with helical coil heat exchanger with 198 gph recovery at 90F temperature rise

(4) Powered anodes

(5) Seamless glass lined tank

(6) High efficiency top mounted modulating powered burner

(7) ASME certified tank construction

(8) Condensate neutralizer

(9) Energy Star qualified

b. Install new piping, isolation valves, check valve per manufacture’s installation requirements. All DHW piping and drain lines shall be full size copper pipe unless otherwise specified. Unions shall be brass or bronze. Soldered joints shall be made with flux and are only acceptable for lines 2 inches or smaller. Piping shall be new and clean. All isolation valves shall be full port ball type with stainless steel trim.

c. Install temperature gauge on hot water supply to building.

d. Install new vertical 16 gallon ASME diaphragm expansion tank. Tank shall be for potable water, antimicrobial polypropylene liner with anti-legionella protection. Maximum working pressure of 150 psig and max operating temp of 200F. Air valve shall be a Schrader with EPDM seat. An example meeting these requirement s is Amtrol THERM-X-TROL ST-30VC.

e. Install schedule 40 natural gas piping to unit’s gas train inlet to include; low point drain, main gas and

f. Install flue venting per manufactures’ requirements. Do not use PVC or dissimilar metals. Flue are typically vented to a common venting system with heating boiler.

g. Insulated all exposed (new and existing) HW piping with 1.5” cellular glass insulation (ASTM C 552) and factory protective jacket. Corners shall have PVC jacket. Seal the ends of pipe insulation with brush

h. Install name and directional labeling on each type of piping.

i. Install a laminated warranty tag; stating contractor’s name, contract number, government point of contact with phone number, date of install, and warranty dates. Attach with zip tie on equipment in noticeable location and completed before government final inspection.

j. Install an O&M manual metal holder or plastic tote on or near heater, properly labeled “DHW Heater O&M”. Complete extend tank warranty information with manufacturer. Place all government approved Operation & Maintenance in holder and broom clean mechanical room before final government inspection

k. Perform heater start up by manufacturer’s representative with DPW present for safety checks in accordance with the manufacturer documentation

1. PERFORMANCE AND SCHEDULING

1.1. Performance Period Requirements

1.1.1. The Contractor is required to commence work under this Task Order within ten (10) calendar days after the date of issuance of the Notice to Proceed (NTP) for the Base Item(s), prosecute the work diligently, and complete all work on all Base Item(s) no later than 250 calendar days after the date of issuance of the Notice to Proceed for the Base Item(s). The time stated for completion includes final cleanup of the premises and submission of all required close-out documentation.

1.2. Award of Options

1.2.1. n/a.

1.3. Construction Phasing Requirements

1.3.1. For building 2020, the occupied building will require sequencing the heater and storage tank for replacement. For BLDG 2008A notify occupants hot water will be off during replacement.

2. DRAWINGS , SPECIFICATIONS & CODES:

2.1. Drawings

2.1.1. The drawings outlined below are attached.

Drawing Number

Sheet Number

Title Rev Number

Date

2.1.2. Dimensions and utility locations are approximate and must be verified in the field.

2.2. Specifications

2.2.1. JBLM Specification 230923 - DDC for HVAC and Other Local Building Systems 05/2019.

2.3. Codes

2.3.1. The Contractor shall comply with all pertinent Local, State, and Federal building life/health/safety codes as listed.

a. Applicable Unified Facilities Criterias (UFC)

b. UFC 1-200-01: General Building Requirements

c. UFC 1-200-02: High Performance and Sustainable Building Requirements https://www.wbdg.org/ffc/dod/unified-facilities-criteria-ufc/ufc-1-200-02

d. ASA IE&E SDD policy www.asaie.army.mil/Public/ES/doc/SDD%20Policy.pdf

e. UFC 1-201-01 Non-Permanent DOD Facilities in Support of Military Operations

f. EM 385-1-1 (http://www.publications.usace.army.mil/USACEPublications/EngineerManuals.aspx)

g. National Electrical Code

h. International Plumbing Code

i. National Fire Protection Association (NFPA) Codes

j. Telecommunication Industry Association/Electrical Industry Association Wiring Standards (Building Telecommunication Wiring Standards)

k. Army Installation Information Infrastructure Architecture Policy (I3A)

l. USACE Energy and Water Conservation Design Guide (http://www.wbdg.org/references/pa_dod_energy.php)

m. JBLM Design Standard specifications (http://www.lewis-mcchord.army.mil/designstandards/)

n. PWE-707, Standard Operating Procedure for Construction and Demolition (C&D) Waste Planning and Reporting (Available through government Project Manager) https://www.wbdg.org/ffc/dod/unified-facilities-criteria-ufc/ufc-1-200-02 http://www.asaie.army.mil/Public/ES/doc/SDD%20Policy.pdf http://www.publications.usace.army.mil/USACEPublications/EngineerManuals.aspx http://www.wbdg.org/references/pa_dod_energy.php http://www.lewis-mcchord.army.mil/designstandards/

3. SUBMITTALS

3.1. Project Submittal Requirements

3.1.1. All submittals shall be submitted in accordance with the Base Contract Statement of Work, paragraph 9 entitled ELECTRONIC SUBMITTALS. The following submittals are required at a minimum:

3.1.2. Manufacturers equipment specification sheets meeting specifications of SOW.

3.1.3. Training and Completion Letters (AT/FP, OPSEC, iWATCH, E-Verify)

3.1.4. Operation and Maintenance Manuals

3.2. Close-out Submittal Requirements

3.2.1. The Contractor shall provide a Letter of non-retention for all contract documents, plans, drawings, and specifications after the destruction of all copies that are not required by the contractor to meet legal requirements.

END STATEMENT OF WORK

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