01_10_10_-_Specs_-_Amendment__1.pdf

Convert M-Plant Steam Boilers to Hot Water THULESTEM2H2O

SECTION 01 10 10 Page 1

SECTION 01 10 10

PROJECT DESCRIPTION AND DESIGN REQUIREMENTS

08/11

PART 1 GENERAL

1.0 WORK COVERED BY CONTRACT DOCUMENTS

1.0.1 Project Description

The work under this contract includes Design and Construction of a co-generation system to capture waste exhaust heat from five (5) diesel fired generator to produce central hot water to be piped to serve 9 buildings. The existing five (5) diesel generators are currently piped and configure to produce steam, however, under this project the waste heat will be captured and converted to Central/District hot water in lieu of it presently being steam.

Additionally, this project will include all equipment necessary to pipe and distribute the newly generated hot water to centrally serve 9 buildings and include all the necessary control, communication to complete the work. All of the work takes place at Thule Air Base, Greenland. Refer to PART 3 EXECUTION for more information.

1.0.2 Location

The work is located within building 1391 and its vicinity as well as the 100 area housing complex. The limits of work are noted in the plans and shall be validated by the Design/Builder and submitted to the Contracting Officer or his/her representative for approval.

1.0.3 OCCUPANCY OF PREMISES

Buildings 1391/1393 (M-Plant) will be occupied at all times during performance of work under this Contract. The Contractor may only take one (1) boiler off-line at a time (e.g.: work on a single boiler at a time), which allows for the other four boilers to be fully ready and functional at any time. Advanced coordination with the plant chief operator and BCE shall be made, min 10 days prior to start of any work. Any work within the plant shall not impede the plant’s operations at any time!

The contractor may only interrupt heating on one residential building at a time unless prior authorization is granted by the COR and BCE. If any work on any of the buildings mentioned below take place outside of typical construction season at Thule (after 15 Sep) the contractor shall have contingency plan in place for each building in case heating service outage takes longer than 48 hour.

Residential buildings 99, 100, 101, 102, 103, 105 will be occupied at all times during work. Any disruptions to buildings heating system/hot water shall be coordinated with BCE in advance, min 10

SECTION 01 10 10 Page 2 days prior to start of any work. Each building shall not be off the heating system, without hot water more than 48 hr. Should any complications arise the contractor shall notify the COR and BCE immediately.

Building 107 – Dining facility – will be in use at the time of construction. Any disruptions to buildings heating system/hot water shall be coordinated with BCE in advance, min 10 days prior to start of any work. The facility shall not be off the heating system, without hot water more than 48 hr. Should any complications arise the contractor shall notify the COR and BCE immediately.

Air Traffic Control tower Bldg 625 – Any disruptions to buildings heating system/hot water shall be coordinated with BCE in advance, min 10 days prior to start of any work. Building shall not be off the heating system more than 48 hr.

Building 628 – storage, is not occupied any work within the space shall not prohibit retrieval of items from the space. Any disruptions to buildings heating system/hot water shall be coordinated with BCE in advance, min 10 days prior to start of any work. Building shall not be off the heating system more than 48 hr.

Before work is started, the Contractor shall arrange with the Contracting Officer a sequence of procedure, means of access, space for storage of materials and equipment, and use of approaches, corridors, and stairways.

1.0.4 EXISTING WORK

In addition to "FAR 52.236-9, Protection of Existing Vegetation, Structures, Equipment, Utilities, and Improvements":

1.0.4.1 Remove or alter existing work in such a manner as to prevent injury or damage to any portions of the existing work which remain.

1.0.4.2 Repair or replace portions of existing work which have been altered during construction operations to match existing or adjoining work, as approved by the Contracting Officer. At the completion of operations, existing work shall be in a condition equal to or better than that which existed before new work started.

1.0.5 LOCATION OF UNDERGROUND UTILITIES

Obtain digging permits from the Contracting Officer prior to start of excavation. Scan the construction site with electromagnetic or sonic equipment, and mark the surface of the ground or paved surface where existing underground utilities are discovered. Verify the elevations of existing piping, utilities, and any type of underground or encased obstruction not indicated to be specified or removed but indicated or discovered during scanning in locations to

SECTION 01 10 10 Page 3 be traversed by piping, ducts, and other work to be conducted or installed. Verify elevations before installing new work closer than nearest manhole or other structure at which an adjustment in grade can be made.

1.0.5.1 Notification

Notify the Contracting Officer in writing at least 15 days prior to starting excavation work.

1.0.6 GOVERNMENT-FURNISHED MATERIAL AND EQUIPMENT

Pursuant to Contract Clause and as indicated in Appendix AA, the Government may furnish materials and equipment for installation by the Contractor.

1.0.6.1 Delivery Schedule

Deliveries to Thule are limited to a short period each year during the summer. Arrange all deliveries with the COR far enough in advance that materials and equipment can be transported efficiently and without damage to the materials or delay to the Work.

1.0.6.2 Delivery Location

The materials and equipment are to be delivered to a location approved by the COR.

1.0.7 SALVAGE MATERIAL AND EQUIPMENT

Items designated by the Contracting Officer to be salvaged shall remain the property of the Government. Refer to Contract Special Provisions for particulars.

The salvaged property shall be segregated, itemized, delivered, and off-loaded at the Government designated storage area.

Contractor shall maintain property control records for material or equipment designated as salvage. Contractor's system of property control may be used if approved by the Contracting Officer.

Contractor shall be responsible for storage and protection of salvaged materials and equipment until disposition by the Contracting Officer.

SECTION 01 10 10 Page 4

ARTICLE1 – DESIGN OBJECTIVES

1.1 SCOPE OF WORK

Prepare design/build construction documents and provide construction for the conversion of M-Plant Steam Boilers to Hot Water at Thule Air Base (TAB), Greenland. The Scope of Work includes, but is not limited to:

a. Five existing boilers shall be rebuilt from steam to generate hot water for district heating

b. Existing steam piping, condensate piping, and feedwater piping in Building 1391 and Building 1393 that is taken out of service by the Work shall be demolished and removed to the DRMO Site.

c. Auxiliary steam to District Heating water heat exchangers, pump, controls and electrical power.

d. Distribution of District Heating hot water piping.

e. Distribution piping structural support systems.

f. Direct Digital Control (DDC) System control and monitoring of the installations

g. Distribution pumps for district heating water

h. Main district hot water piping inside the facility

i. Water treatment installation.

j. Pressure expansion tank or tanks.

k. Devices as required for hydronic air control in a pumped piping system.

l. Strainers as specifically described herein and also as required elsewhere in other requirements for the design builder.

m. Incidental architectural work not restricting current useable space required to install the work.

Refer to Appendix AA for the concept drawings. Design drawings shall use coordinate system WGS84 UTM Zone 19 North, as this is the official coordinate system for Thule Air Base.

The system has been constructed at various times up to 2016. The existing base electrical generators shall remain and their operation shall not be compromised. Work which may affect the electrical generating capability of the base shall be coordinated with the Base and shall be done only after their written approval. The requirements for this project work include demolition of necessary Mechanical, Electrical and Plumbing (MEP) equipment and associate piping and conduits. Items indicated as demolished shall be taken DRMO site for recycling as appropriate or to the Thule AB designated landfill/Dump area in according to the Thule AB regulation.

SECTION 01 10 10 Page 5

The following items shall be salvaged and hand over to the Base Maintenance Contract (BMC).

1. Steam traps.

2. Steam to water heat exchangers.

3. DDC sensors, controllers, control units, control panels, and any other control system components removed from service.

4. Heat Tracing.

5. Digitrace Heat Tracing Controls.

6. Backflow Preventers.

7. Pumps.

8. Steam Regulation Valves.

9. Domestic hot water storage tanks.

10. BTU Meters, valves, gauges, appurtenances, and piping trim at the instruction of the COR in coordination with Thule Air Base personnel.

11. All equipment to be demolished and removed shall be visually inspected by the COR in conjunction with the Thule Air Base personnel for a determination if it is to be salvaged for the Government. This shall be performed prior to the equipment’s removal.

As part of the Base Bid, the Design-Build Contractor shall provide a detail 3D Building Information Modeling (BIM) in both native and pdf formats as part of the Final Design Submission. The BIM file shall show all major equipment locations inside buildings or mini-plants.

A separate model shall be provided including all piping outside the 5 foot boundary line from each building. Electrical conduits 3 inch and larger shall be included. ATFP, UFAS and ADA standards do not apply nor are there any LEED objectives or certification requirements. Federal/DOD Energy standards and goals that are lifecycle justifiable apply.

1.2 BID OPTIONS

See Bid Schedule (Section 00 10 00) for complete details.

1.3 DESIGN CRITERIA

THE CONCEPTUAL DESIGN SHOWN IN THIS REQUEST FOR PROPOSAL (RFP) IS

BASED ON:

• DD Form WWCX 13-1091

• UFC 1-200-01 General Building Requirement

• Thule Air Base Standards and Design Guidelines

SECTION 01 10 10 Page 6

Design development, construction drawings, technical specifications and construction shall at minimum comply with the requirements and quality standards outlined herein and in the Unified Facilities Guide Specifications (UFGS). The Architect-Engineer (AE) shall employ safety and health standards promulgated under the Occupational Safety and Health Act (OSHA) of 1970 as published in the Federal Register, October 18, 1972, Volume 37, Number 202, Part II (Title 29, Chapter 17, Part 1910) and subsequently issued OSHA standards or standards consistent therewith in the design of this facility. In addition, the AE shall follow the National Institute of Occupational Safety and Health (NIOSH) Standards.

Air Force Criteria is available from the National Institute of Building Sciences Whole Building Design Guide Construction Criteria Base (CCB) 2 in CD-ROM, from their website for CCB subscribers (http://www.wbdg.org/ccb), or via the USACE website (http://www.usace.army.mil). The resources found on the CCB include US Army Corps of Engineers requirements and Air Force Base Design Guides (AFDG), Engineering Technical Letters (AFETL), Pamphlets (AFP), and Regulations (AFR).

Applicable design and construction criteria is specifically indicated, but not limited to that mentioned in the following sections of this document. Criteria shall be taken from the most current references as of the date of issue of the RFP, unless noted otherwise. Referenced codes and standards are minimum acceptable criteria. Administrative, contractual, and procedural features of the contract shall be as described in other sections of this RFP.

1.3.1 The applicable portions of the Engineering Manual Army

Regulations and other applicable publications shall govern the design and preparation of plans, specifications, cost estimates and design analysis. Particular attention is invited to the following engineering manuals, which establish minimum requirements for plans, specifications, cost estimates and design analysis. Note that any clauses in this scope override the below listed criteria. The below listed, as well as, most other Army/Air Force criteria with the exception of some Command and Installation produced criteria, are available from the Whole Building Design Guide (WBDG) http://www.wbdg.org/index.php, or via the following US Army COE websites: http://www.hnd.usace.army.mil or http://www.usace.army.mil. This includes but not limited to the following publications:

a. UFC 1-300-07A, Design Build Technical Requirements

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

c. UFC 3-200-10N, Civil Engineering http://www.wbdg.org/index.php http://www.hnd.usace.army.mil/ http://www.usace.army.mil/ http://www.usace.army.mil/

SECTION 01 10 10 Page 7

d. UFC 1-300-09N, Design Procedures

e. UFC 3-410-01, Mechanical Engineering

f. UFC 3-430-01FA Heating and Cooling Distribution Systems

g. UFC 3-430-02FA Central Steam Boiler Plants, with Change 1

h. UFC 3-430-08N Central Heating Plants

i. UFC 3-430-09 Exterior Mechanical Utility Distribution, with

Change 1

j. UFC 3-430-11 Boiler Control Systems

k. UFC 3-500-10N, Electrical Engineering

l. UFC 3-800-10N, Environmental Engineering for Facility

Construction

m. COE Engineering Regulations, Manuals, Engineering

Technical Letters (ETL) and Pamphlets (current editions); including, but not limited to the following:

TI 800-01 Design Criteria (Chg 29 - 16 September 2005 (partially superseded by UFS's))

• EM 385-1-1, U.S. Army COE Safety and Health Requirements Manual. ER 414-1-10, Contractor Submittal Procedures.

• ER 415-345-42, Construction Costs, Cost Estimating and Reserves for Contingencies. ER-1110-1-263, Chemical Data Quality Management for HTW Remedial Activities.

• ER 1110-345-700, "Design Analysis".

• ER 1110-345-710, "Drawings, Military Construction".

• ER 1110-345-720, “Specifications, Military Construction" ER 1110-3- 1300, Military Programs Cost Engineering.

n. UFC 1-300-08, Criteria for Transfer and Acceptance of Military Real Property

o. Unified Facilities Guide Specifications. UFGS guide specifications are for use with SPECSINTACT Version

3.1.270 or later software.

p. Current version of Tri-Service A/E/C CADD Standards, Spatial Data Standards, and A/E Deliverable Standards. See web page:

http://tsc.wes.army.mil for latest version.

q. Installation Information Infrastructure Architecture (I3A) Implementation Guide, Version 3 dated April 2001.

See web page: http://akea-cio.army.mil/i3a/i3a.asp>.

r. Standard Specifications for Subsurface Exploration and Field Testing dated October 1980.

s. Current version of Tri-Service A/E/C CADD Standards, Spatial Data Standards, and A/E Deliverable Standards. See web page:

http://tsc.wes.army.mil/ http://akea-cio.army.mil/i3a/i3a.asp

SECTION 01 10 10 Page 8 http://tsc.wes.army.mil for latest version.

1.3.2 The following letters, documents, publications and other listed items shall be incorporated into the design of this project:

a. DD From 1391 for wwcx13-1091 Convert M-Plant Steam to Hot

Water, Thule Air Base, GL.

b. Architectural Compatibility Guide, TAB, undated.

c. UFC 3-120-01 Air Force Sign Standard

d. Air Force and Army Engineering Technical Letters

(ETL's). (These are available on the CCB and at the respective web sites http://www.hnd.usace.army.mil/techinfo and http:///www.afcesa.af.mil/library.)

1.3.3 Other Applicable (non-Government) Publications and References (latest editions):

a. National Standard Plumbing Code

b. Mechanical Systems – ASHRAE and SMACNA Standards

c. IBC 2015 International Building Code

d. International Mechanical Code (IMC)

e. International Plumbing Code

f. National Institute of Occupational Safety and Health

(NIOSH) Standards (latest editions)

g. Occupational Safety and Health Administration (OSHA)

Standards (latest editions). All Government furnished items will be provided to the A/E or the COE project manager upon request will give a source from the A/E.

1.3.4 In addition to DOD and Air Force criteria, the

Architect/Engineer will employ safety and health standards promulgated under the Occupational Safety and Health Act (OSHA) of 1970 as published in the Federal Register, October 18, 1972, Volume 37, Number 202, Part II (Title 29, Chapter 17, Part 1910) and subsequently issued OSHA standards or standards consistent therewith in the design of this facility.

In those cases where an identified inconsistency appears, the Architect/Engineer will notify the New York District of the inconsistency for review and decision. In those cases where there are unique military requirements for which no applicable OSHA standards exists, Air Force standards currently employed will continue to apply.

http://tsc.wes.army.mil/ http://www.hnd.usace.army.mil/techinfo http://www.afcesa.af.mil/library.)

SECTION 01 10 10 Page 9

1.4 SPECIFICATIONS

The technical specifications shall be developed from those provided with this RFP and the Unified Facilities Guide Specifications (UFGS) by the Designers of Record. Danish Architect-Engineers may deliver Specification in the Danish BIPS system. BIPS must be modified for requirements for standard forms, submittals, and Contracting Officer (CO) approval. If not available in UFGS, the Designer of Record shall develop specific sections using a SpecIntact template. The Design- Build Contractor is also directed to section 01 12 00.01, paragraph

1.16.1 Technical Specification for additional requirements. The Design-Build Contractor may use specifications other than from UFGS as long as the specifications meet Master Format 2010 and meet the technical requirements for the RFP.

1.5 DESIGN QUALITY

The main objectives of this solicitation are to design and construct a system solution for obtain a design for the conversion of portions of the existing M-Plant from District Steam Heating to District Hot Water Heating, design and construct a distribution system for the District Heating Hot Water, and design and construct connections and adaptations to existing buildings so that they may utilize the District Heating Hot Water produced by the M-Plant. This should be done to provide heating water, including associated work within funds available while maximizing design and material quality. Utility systems shall be integrated within the building and on the site.

Systems shall be selected for low-cost maintenance and operation.

1.6 DESIGN FREEDOM

Requirements stated and illustrated in this RFP are minimums.

Innovative, creative, or cost saving proposals which meet or exceed these requirements are encouraged and shall be considered during design submittal reviews. These documents provided establish project requirements and spatial relationships that have been reviewed for user function and preliminary code compliance. Work may change with government approval to enhance design, comply with codes, incorporate options, include betterments, or support constructability.

1.7 ENERGY STANDARD COMPLIANCE

All components utilized shall meet the minimum requirements of ASHRAE 90.1-2010 in addition to any other applicable project criteria. As a separate part or section of the Design Analysis demonstrate exceeding ASHRAE 90.1 with calculations, vendor literature, equipment catalog sheets, compliance forms, worksheets, and narrative descriptions of

SECTION 01 10 10 Page 10 the HVAC systems, service water heating, electrical power, and other equipment and systems.

1.8 PERMITS

Not applicable.Refer to specifications for permit details: (i.e.

welding permit, crane permit, dig permit, discharge permit...)

SECTION 01 10 10 Page 11

ARTICLE 2 – FUNCTION DESIGN REQUIREMENTS

2.1 GENERAL DEFINITIONS AND REQUIREMENTS

2.1.1 GROSS AREA DEFINITION

Not used.

2.1.2 NET AREA DEFINITION

Not used.

2.1.3 NET AREA REQUIREMENTS

Not used.

2.1.4 FINISH REQUIREMENTS

Where it is necessary to cut or patch any architectural work as part of this project the area shall be restored to match previous finishes in material, appearance, and function.

2.1.5 FUNCTIONAL AREA REQUIREMENTS

All mechanical, electrical and other work shall allow space for proper maintenance and be in compliance with code requirements, including but not limited to the National Electrical Code.

ARTICLE 3 – DESIGN NARRATIVES

A10 FOUNDATIONS

Not used.

B10 SUPERSTRUCTURE

Not used.

B20 EXTERIOR ENCLOSURE

Repair, patch and/or replace exterior enclosure and finish to match existing on exterior enclosure that are damaged or altered by the work.

SECTION 01 10 10 Page 12

C10 SUPERSTRUCTURE

C1001.2 SEISMIC DESIGN PARAMETERS

Provide supports and lateral bracing for the utilities and equipment based on the following seismic criteria:

• Ss = 0.39 g

• S1 = 0.18 g

• Importance factor = 1.0.

C1001.3 SITE CLASS

In lieu of available site-specific seismic/geotechnical information, the Design Build Contractor shall be responsible for identifying the site classification to be used to modify the UFC provided seismic data to match site soil characteristics. In the absence of such classification, Provide design based on site class “D”.

D – INTERIORS

Not used.

E – MECHANICAL/ELECTRICAL/PLUMBING

E20 PLUMBING

E20.1 CODES AND STANDARDS

See Section 1.3

E20.2 GENERAL REQUIREMENTS

Plumbing system shall be in accordance with IPC 2015 and UFC 3 420 01.

The domestic hot water system shall contribute to the building overall energy performance. Domestic hot water shall make use of standard outlet/water mixing valve with build in scald-protection and water outlet temperature at remote faucet to be minimum 115 degrees F.

Design Builder shall verify the presence of mixing valves in affected buildings. Notify the Government if any buildings affected by this project lack mixing valves. Water temperature in the main hot water storage tanks should be at a minimum of 140 degrees F.

E20.3 DOMESTIC WATER SERVICE

Design builder shall provide, after the water meter, a primary Reduced Pressure Backflow Preventer (RPZ) with redundancy shall be provided to give maximum water separation protection at the makeup water connection to the District Heating Water system within M-Plant. There shall be no connection to the potable water system for HVAC make-up.

SECTION 01 10 10 Page 13

The main backflow preventer assembly shall meet the requirement of International Plumbing Code (IPC), ASSE standard 1013, AWWA standard C511-92, CSA B64.5, UL Classified.

Within M-plant piping shall be Alupex piping.copper type “L”. At converted buildings piping shall be copper type “L” or Multi-Layer- Composite (ALUpex piping) and Plumbing fixture branch run-outs may be PEX (Polyethylene Cross-Linked) piping shall be utilized throughout the project for domestic water. Hot and cold water pipes shall have 2” insulation jacket on main hot water pipes (1-1/4 inches and larger) and 1” on smaller pipes. All insulated pipes shall have PVC jacket.

Water supply piping shall not be installed under floors unless approved in writing by the Government.

E20.4 HOT WATER DISTRIBUTION SYSTEM

The existing hot water heater shall be replaced with a new heater system based on heat from the District Heating System as the primary source. Connections will be made to the existing potable hot water distribution system in each converted building, to maintain that system as much as possible while meeting the functional requirements.

Attachment AA lists the requirements for modifications to potable domestic hot water in each of the affected buildings. Domestic hot water shall be generated as noted in Attachment AA. Domestic hot water storage tanks shall be TAB standard stainless steel, Smartline Brand size 200 liter with IPC 2015 compliant double wall heat exchanger or approved equal. Size hot water storage tank based on the facility type, the number of actual fixtures types, and in accordance with American Society Refrigeration and Air Conditioning Engineers (ASHRAE) Standards or the European Union Equivalent Country Standard.

Re-use any of the existing hot water system already existing in the buildings that are included in this Contract Sizing hot water storage tank based on number of actual fixture outlets, recirculation pumps, mixing valve and temperature reducing station. The existing hot water recirculation systems shall be used with an aquastat (provide new if one is not functioning, re-use existing if a functioning one is in place) to maintain the hot water supply temperature through the use of a hot water re-circulation pump. The domestic hot water supply temperature shall be generated and stored at a minimum of 60.0°C (140°F) to eliminate the chance for Legionella bacteria to form.

Hot and cold water pipes shall have 2” insulation jacket on main hot water pipes (1-1/4 inches and larger) and 1” on smaller pipes. All insulated pipes shall have PVC jacket.

Water heaters and storage tanks shall be located and connected so as to provide access for observation, maintenance, servicing and

SECTION 01 10 10 Page 14 replacement. The storage tanks must be drainable to facilitate service, sediment removal, repair or replacement. Drain valves must be constructed and tested in accordance with ASSE 1005.

The recirculation systems require isolation valves, flow check valve, purge valves, timer control, and aquastat to control the return temperature. Design builder shall notify the government when these components are not present in a building within this Scope of Work.

Copper pipe type “L”, or Multi-Layer-Composite (ALUpex) or PEX piping shall be utilized throughout the project. Hot and cold water pipes shall have 2” insulation jacket on main hot water pipes (1-1/4 inches and larger) and 1” on smaller pipes. All insulated pipes shall have PVC jacket.

The use of Thule Air Base standard Smart lube inline-system or similar for hot water circulation shall be considered in order to reduce energy loss, save pipe wall penetrations, save pipe hangers and insulation material as an acceptable installation.

Allowance for expansion and contraction should be made in all hot water supply mains, risers, and branches. A suitable expansion loops and swing joints shall be provided at appropriate locations in the hot water piping system. Allow 1/8" per 10 feet for expansion in copper tubing.

E20.5 SANITARY WASTE

Not applicable

E20.6 HANGERS AND SUPPORTS

Plumbing Piping and equipment shall be supported or suspended in accordance with requirements of UFGS Section 22 00 00 Plumbing, General Purpose.

Suspended mechanical equipment shall be braced in accordance with UFC 4 010 01 Standard 20 - Equipment Bracing. Suspended equipment weighing more than 31 pounds shall be braced to withstand lateral acceleration of 0.5 g, and vertical acceleration of 1.5 g. Piping, and distributed systems do not require bracing under UFC 4 010 01 Standard 20.

E30 HEATING AND VENTILATING

E30.1 CODES AND STANDARDS

See Section 1.3

E3005 ANALYSIS REQUIREMENTS

E3005.1 ANNUAL ENERGY COST ANALYSIS

Not applicable

SECTION 01 10 10 Page 15

E3005.2 HEAT RECOVERY/CO-GENERATION DESIGN STRATEGY OR DESIGN

INTENTHVAC SYSTEM SELECTION

The Design/Builder shall implement the conversion of five existing flue gas boilers from District Steam to District Heating Hot Water, the design and construction of a backup method of generating district Heating Water, the design and construction of base District Heating Hot Water distribution piping, and the conversion of selected existing buildings from steam to District Heating Hot Water. Details of the requirements for the conversion of the buildings are in Attachment AA.

The buildings to be converted are:

1. 97-Dormitory

2. 98-Dormitory

3. 99-dormitory

4. 100-Northstar Inn hotel

5. 101-Dormitory

6. 102-Dormitory

7. 103-Dormitory

8. 105-Dormitory

9. 107-Dining Hall

10. 625-Air Traffic Control tower

11. 628-Warehouse

The design builder shall:

• analyze

• select

• propose

• design

• construct a mechanical HVAC system satisfying the performance requirements and goals listed herein.

It is the overall intent of this project to:

SECTION 01 10 10 Page 16

1. Maximize the potential production of heating hot water by the converted flue gas boilers from the flue gas emission stream.

2. Provide protection against system failure by providing a backup steam to district Heating Water conversion station (i.e.

auxiliary steam to hot water heat exchanger at the vicinity of Bldg 1391).

3. To provide a system of distribution piping which shall both distribute the district Heating Hot Water to the affected buildings listed in this Request for Proposal and provide a distribution backbone for future production of heating hot water elsewhere on Thule Air Base.

4. To convert selected buildings from steam to District Heating Hot Water. Specific requirements for each building are listed in Attachment AA. In general, it is the intent to replace existing steam based equipment with the equivalent replacement in-kind by heating hot water equipment. Where the design builder can meet the space heating or domestic hot water needs of the building use by an alternative method, this may be explored and investigated for consideration of adoption by the Government if demonstrated to be the functional equivalent at no additional Cost to the Government.this possibility is open to the design builder where functional equivalence can be demonstrated and there is no additional cost to the Government.

E3005.3 HVAC LOAD ANALYSIS

It is expected that there are very limited circumstances where heating loads analyses must be performed. Where necessary, those loads analyses shall conform to these requirements. The HVAC loads calculations shall be performed with computer software capable of calculating each zone’s peak heating load as well as the whole building “block” loads.

The software shall, at a minimum, calculate outside air loads (sensible and latent) from ventilation and infiltration, and heat losses through fenestration, walls, floors and roofs. The heating load calculations must be performed without credit for occupants and internal gains.

HVAC load calculations shall be submitted to the Government for review and approval. Load calculation reports shall include all input and output used in the heating and cooling calculation program, and shall include zone peak heating loads results, and whole building “block” loads, air-handling unit coil selections, and psychrometric process charts.

SECTION 01 10 10 Page 17

E3005.4 SYSTEM SELECTION QUALIFICATIONS

BOILER CONVERSIONS

Conversion of Boilers B3, B4, and B5 is the first priority of the project. Conversion of Boilers B1 and B2 shall follow. This is done as a combination of work by Danstoker, the original manufacturer (or approved and qualified contractor) and Design Builder. The performance of this will require close coordination between the contractor and M-plant operation.

Danstoker shall provide a warranty of performance and longevity for the converted boilers of 5 years.

The end result shall be non-condensing boilers with the same flue gas control dampers that are now in place. Return district heating water into the converted boilers shall be no lower than 60C. The system shall be designed to a District Heating Supply temperature of 85C and a minimum return temperature of 45C. A shunt pump shall be provided to modulate and recirculated boiler heating water supply back to boiler entering water to raise the temperature to 60C when required.

It is expected that the shunt pump will be located in the immediate proximity of the boiler it serves.

M-Plant boiler conversions shall be controlled by a modified Weithaupt control system. The existing Weithaupt system has been prepared on its manufacture for this conversion. This shall be tied into the overall M-Plant control system. The successful bidder, with Danstoker as its subcontractor or Danstoker qualified installer is responsible to commission the conversions and demonstrate proper operation. The contractor may provide a new steam to water heat exchanger or may salvage unit(s) from converted buildings, if the heat exchangers are less than ten years old.

Auxiliary steam to water District Heating Water shall be required.

This shall consist of two complete mechanical systems within the containerized steam to district heating water heat exchangers. Each system shall include independent control valves, shut off valves and other ancillary equipment needed for two system to be operate independently. There shall be a single steam line entering the container, a single condensate line leaving, and a single District Heating water supply pipe entering, a single district Heating water return line leaving. Each of the two independent systems shall be sized for 2 MW thermal production of district Heating Water at 85C/45C. The containerized auxiliary system shall be in an insulated conex-box type construction with ventilation and heating unit.

Examples of this type of conex-boxes can be found at Thule (#8274 near

SECTION 01 10 10 Page 18

Bldg 274) and the offeror is encourages to visit one during design kickoff and conference.

Implement the following:

1. Boiler Water Side Modifications

a. Demolish steam connections:

Demolish the existing steam lines and valves from the boiler outlet flange to the steam header flange. Provide new blind flanges on the abandoned boiler steam exit nozzle and the abandoned steam header connection to maintain system integrity for the remaining boilers.

b. Demolish feedwater connections:

Demolish the existing feedwater lines and valves from the boiler feedwater inlet flange to the feedwater header connection, including the feedwater control valve. Provide new blind flanges on the boiler connection and the feedwater header connection to maintain system integrity for the remaining boilers.

c. Demolish boiler water level controls:

Demolish the existing water level controls used for steam service to the existing boiler flange points. Provide new blind flanges on the boiler connection points. Demolish electrical connections to the field terminal strip in the Boiler Control System cabinet.

d. Connect district hot water piping to the boiler Remove existing blind flanges from the existing hot water connection flanges of each designated boiler and attach the district hot water piping to these inlet and outlet connections with flanges and gaskets to match the existing designated boiler nozzles.

e. Other boiler water side appurtenances shall remain

2. Boiler Gas Side Modifications

a. The contractor shall verify the existing flue gas bypass damper actuators are functional and of sufficiently rapid response and torque capability to modulate for water temperature control plus limiting engine backpressure to no more than 38 millibars above atmospheric pressure.

b. See Boiler Operating Controls section for further requirements.

3. District Heating Water System Modifications

SECTION 01 10 10 Page 19

a. The district water system attaching to the three existing boilers being converted from steam.

b. The district heating system extension shall conform to the diagram shown below, with two exceptions:

i. Where the diagram indicates two District Heating Pumps three pumps sized at 50% each shall be provided.

ii. System shall be designed for 85C supply heating water temperature, and 45C returning water temperature.

b.c. :

See section E3060 Energy Management and Control Systems for boiler operating controls.

DISTRICT HEATING HOT WATER DISTRIBUTION

Pumping for District Heating hot water shall be from a single location in M-Plant. There shall be three pumps, each sized for 50% of the load, total water flow of the system is based on 417 gpm, (139 gpm thru each of 3 operating boilers). Pumps shall have variable frequency drives. Pumping shall be based on differential pressure at the most demanding point in the system. Provide pressure sensors in a sufficient number of locations in the system to determine required pump operation at all expected operating conditions among the buildings served.

Exterior pipe distribution shall be divided into two types; “backbone” piping, and “branch” piping. Backbone piping shall be sized to accommodate the eventual installation of a district heating loop in

SECTION 01 10 10 Page 20 the center portion of the base and described on plans. Pipe size requirements are described in Attachment AA.

The contractor may investigate the possibility of combining the hot water from the exhaust boilers with existing heating distribution from the cooling engine jacket water. Please refer to appendix T for schematic of the distribution. If combining the two hot water sources does not pose any harm to the operation of the engine (will require verification from company knowledgeable working with these types of systems) the government may allow the design to progress in that direction after thorough discussion at the design kickoff.

District Heating piping and distribution pumps shall be protected for a “dead-head” condition by ensuring that at no time is there a condition of no flow in the system. All building connections and dead end sections, subject to a 24-inch limitation stated herein, shall have a recirculation valve connecting the supply and return piping as noted in Attachment AA control system diagrams.

Building Conversions

Buildings shall be converted from the existing steam service to district heating hot water. Existing base standard system details are used as guiding principles for the conversion. They shall be adapted to the particular equipment and system in each building connected to the District Heating Hot Water system. Requirements for each building are described in Attachment AA.

E3010 SYSTEM PERFORMANCE REQUIREMENTS

E3010.1 OUTDOOR TEMPERATURE DESIGN CRITERIA

HVAC design shall be based on value stated below and 99% design heating values in Department of Defense Engineering Weather Data per UFC 3-400-02 –Engineering Weather Data. (This weather data set is also available as NOAA National Climate Data Center)

Design Heating: 99% criteria: -40 dig F (-40 dig C) db.

Weather simulation files for building energy models shall be based on nearest available typical meteorological year (TMY) data for Thule.

E3010.2 Indoor Design Criteria

Indoor Design Criteria shall be per UFC 3 410 01

SECTION 01 10 10 Page 21

E3010.3 THERMOSTATIC ZONING CRITERIA

Where equipment is added to condition Mechanical Rooms the unit shall serve only the Mechanical Room and the thermostat shall be in the Mechanical Room.

E3010.4 BUILDING VENTILATION AND AIR BALANCE

Mechanical systems shall be designed and constructed in full compliance with ASHRAE 62.1-2010 Ventilation for Acceptable Indoor Air Quality.

E3010.5 REDUNDANCY REQUIREMENTS

Refer to section E3005.4 System Selection for the requirement for a backup steam to water heat exchanger plant associated with the exhaust flue boilers

Refer to section E3005.4 System Selection for the requirement for a redundant primary District Heating Hot Water pump in M-Plant.

On the failure of a duty pump, a standby pump shall be activated to maintain water distribution.

Redundancy in main supply or exhaust air fans is not required.

E3010.6 REQUIREMENTS FOR EQUIPMENT AND SERVICES LOCATIONS AND

MAINTENANCE ACCESS

Space shall be provided around HVAC system equipment as recommended by the manufacturer and in compliance with local code requirements for routine maintenance.

Access doors or panels shall be provided in ventilation equipment, ductwork and plenums as required for in-site inspection and cleaning.

Equipment access doors or panels shall be provided and sized to allow full access.

Large central equipment shall be situated to facilitate its replacement.

The Design/Builder shall locate major equipment with provisions to remove or replace the equipment over the life of the building without damage to the building structure. An automatic leak detection system with shut off valves shall be present where main hot water pipes enters into facility, where also the heat energy meter feasible shall be installed. Methods of access shall be included for items such as:

air-handling units, heat exchangers, pumps, water heaters and all devices that have maintenance service requirements.

SECTION 01 10 10 Page 22

Mechanical rooms shall be configured with clear circulation aisles and adequate access to all equipment. The arrangement shall consider the future removal and replacement of all equipment.

The mechanical rooms shall have adequate doorways or areaways and staging areas to permit the replacement and removal of equipment without the need to demolish walls or relocate other equipment.

Concrete housekeeping pads shall be provided for all floor mounted equipment. Pads shall be at least four inches wider on all sides than the equipment they support and shall be four inches thick.

Water lines shall not be located above motor control centers or disconnect switches and shall comply with requirements of NFPA 70 Chapter 1.

No water lines are permitted in electrical rooms, except for fire sprinkler piping.

Sprinkler piping lines shall not be located directly above any electrical equipment.

E3010.7 ACOUSTICAL REQUIREMENTS

Not applicable

E3010.8 HANGERS AND SUPPORTS

Piping and equipment shall be supported or suspended in accordance with requirements of UFGS Section 23 05 15 Common Piping For HVAC.

Provide seismic restraints for mechanical equipment, piping and ductwork in accordance with ASCE 7-2010. The importance factor for mechanical equipment within this facility shall be Ip = 1.0. Refer to the structural section of this narrative for additional requirements.

Suspended mechanical equipment shall be braced in accordance with UFC 4 010 01 Standard 20 – Equipment Bracing. Suspended equipment weighing more than 31 pounds shall be braced to withstand lateral acceleration of 0.5g, and vertical acceleration of 1.5g.

E3010.9 METERS AND GAGES

Each piece of mechanical equipment shall be provided with the instrumentation or test ports to verify critical parameters, such as capacity, pressures, temperatures, and flow rates.

Refer to E3010.11 Measurement & Verification Plan and Attachment AA for other requirements for meters and gages.

SECTION 01 10 10 Page 23

E3010.10 ADHESIVES, MASTICS AND SEALANTS

Adhesives, mastics and sealants shall be water based and low-VOC.

The Design/Builder shall train government staff at building turnover and at the end of the warranty period to ensure continuity of the Measurement & Verification plan.

E3020 HEAT GENERATION

See Section E3005.4 System Selection

E3020.1 ELECTRIC RESISTANCE HEAT

Use of electric resistance heat as primary heating source is not acceptable.

E3040 HVAC DISTRIBUTION

E3040.1 DIRECT OUTDOOR AIR VENTILATION UNITS

Not applicable

E3040.2 DUCT DISTRIBUTION SYSTEMS

Not applicable

E3040.3 AIR DEVICES

Not applicable

E3040.4 DUCT INSULATION

Not applicable

E3040.5 PIPING INSULATION

Piping insulation material shall comply with the fire and smoke hazard ratings indicated by ASTM-E84, NFPA 255 and UL 723.

Minimum piping insulation values shall be provided in accordance with ASHRAE Standard 90.1-2010. Insulation shall be kept at a minimum of 1/4" clearance when installed.

Piping systems with surface temperatures below the average dew point temperature of the indoor ambient air and where condensate drip shall cause damage or create a hazard shall be insulated with a vapor barrier to prevent condensation formation regardless as to whether piping is concealed or exposed.

Insulation that is subject to damage or reduction in thermal resistivity if wetted shall be enclosed with a vapor seal (such as a vapor barrier jacket).

SECTION 01 10 10 Page 24

Exposed and concealed piping shall have color coded labels and have aluminum exterior jacketing.

E3040.6 EQUIPMENT INSULATION

Equipment, heat exchangers and pumps shall be insulated as per ASHRAE Standard 90.1-2010.

Insulation material shall comply with the fire and smoke hazard ratings indicated by ASTM-E84, NFPA 255 and UL 723.

Accessories such as adhesives, mastics, cements, tapes, etc. shall have the same or better component ratings.

E3040.7 HYDRONIC DISTRIBUTION SYSTEMS

EXTERIOR DISTRICT HEATING HOT WATER PIPING

Exterior District Heating Hot Water shall be Thule AB standard Logstor series 6 Piping or approved equal. Piping shall include a continuous two wire leak detection system. Leak detection terminations shall be provided at penetration of each building. Project documentation shall include a schematic diagram indicating all leak detection circuits.

Minimum pressure rating shall be 150 psi.

Provide drains at piping low points.

Provide automatic air vents at piping high points. Exterior air vents should be avoided.

No exterior “dead-leg” of the piping should be more than 24 inches.

At the point of building penetration the exterior grade pipe should extend a minimum of 18 inches into the conditioned space.

INTERIOR DISTRICT HEATING HOT WATER PIPING

Interior District Heating Water piping shall conform to ASTM A53/A53M, Schedule 40, type E or S, Grades A or B. Joints 4-inch and larger shall be welded. Joints smaller than 4 inch may be threaded or flanged.

Piping shall be schedule 40, 150 psi rated black steel with welded joints for pipes 4 inches and larger.

Insulation materials shall comply with the fire and smoke hazard ratings (25 for flame spread; 50 for smoke developed) as indicated by ASTM-E84, NFPA 255 and UL 723. Accessories such as adhesives, mastics, cements and tapes shall have the same or better fire and smoke hazard ratings.

DISTRICT HEATING HOT WATER FILTRATION AND CHEMICAL TREATMENT

SECTION 01 10 10 Page 25

Provide an automatic water treatment system. This shall be located within M-Plant and shall be connected to the suction side of the three distribution pumps. Provide system isolation valves, chemical storage feed tanks, dispensing pumps, and control system with graphic interface at location of system.

If all 5 boilers are afforded to be converted to hot water production the contractor may reuse the existing water treatment systems that are located within M-Plant. The contractor shall be responsible for any modifications needed to the systems. Refer to Appendices for existing conditions.

Water properties for hot water system shall meet properties listed below at time of project completion, I. PH-value: 9-10 II. Conductivity: 10-80 mS/cm III. Oxygen level: < 100 mg/liter IV. Chloride: 0,1—5 mg/liter V. Fluoride: 0,005-1 mg/liter VI. Hardness: 0,01-1 ◦ VII. Sludge: 0,01-0,03 mg/liter VIII. Sulfate: 0,1-5 ppm

Provide two water filters; an in-line basket strainer, and a closed loop fine filter. Basket strainer shall have 1/32 inch perforations.

Closed loop pumped fine filter shall be designed for 5% of system maximum flow. Provide 0.05 micron filtration, a dedicated pump, automatic backwash piped to a floor drain, and a controller.

E3050 TERMINAL AND PACKAGED UNITS

E3050.1 FAN COIL UNITS, UNIT HEATERS, AND CABINET UNIT HEATERS

Unit heaters and radiators may be used to serve Mechanical Rooms Units that are located in non-concealed locations shall be designed and provided with finish materials designed for exposed application and shall be architecturally and aesthetically compatible to the space they are located in.

SECTION 01 10 10 Page 26

E3060 ENERGY MANAGEMENT AND CONTROL SYSTEMS

E3060.1 HVAC INSTRUMENTATION AND CONTROLS

The Energy Management and Control System (EMCS) at Thule Air Base (TAB) is an enterprise system that actively receives energy and building condition information from multiple sources and provides:

alarming; trending; scheduling; set point adjusting; and device communications status of all supervisory building controllers and equipment controllers to maintenance personnel. The existing EMCS is a TREND Control System and incorporates the IQ System that communicates over the TCP/IP Ethernet communications network to the supervisory building controllers. The existing base-wide EMCS is located at Building 1411. The existing TREND Control System shall be expanded to provide controls for the mechanical equipment within the scope of this project. The new controls shall be functionally tied into the existing EMCS and shall interact with existing TREND Operator’s Workstation

(OWS).

Buildings 1391 and 1393

Existing Conditions/Demolition Work

The existing boilers, B-1 & B-2, are being supervised by the Weishaupt Boiler Master Control Panel located in Building 1393. The existing boilers, B-3 thru B-5, are being supervised by the Weishaupt Boiler Master Control Panel located in Building 1391. Weishaupt Boiler Master Control Panels are connected to the boilers via a dedicated network (Profibus) and interfaced with existing Rockwell SCADA System Control Panel using Ethernet/IP network. The existing Plant Control System (PCS) serving the boiler plant and generator engines is being supervised by an existing Rockwell operator workstation located in M- Plant Control Room.

Control panels associated with boilers are to remain in place and be protected during the construction work. The existing sensors and pneumatic control valves on steam side of boilers shall be removed.

Existing control wiring associated with these devices shall be disconnected and removed from the respective controller(s) and control panel(s). Turn over the sensors to the TAB for use as spare parts.

Existing pneumatic tubing used for removed controls shall be demolished and capped at main air lines. The pneumatic tubing shall be disconnected properly as to not cause issues with the remaining pneumatic controls and control air system in buildings.

New wWork

The Design-Build Contractor shall be responsible for making necessary modifications to boilers per information indicated in this RFP. The

SECTION 01 10 10 Page 27

Design-Build Contractor shall coordinate with TAB and provide necessary programming for the boilers for a fully operational system.

a. The boiler sequence of operations shall shift from steam production to hot water production.

b. The Design-Build Contractor shall employ the original system integrator of the existing control system to make any software modifications…