Payne_Avenue_Criteria_Documents.pdf

City Contract No. CT 0103 PS 2025*098

City of Cleveland: 2001 Payne Ave. City Hall Annex Criteria Documents

July 2026

1020 Huron Rd. E #101 Cleveland, OH 44115 216.771.0090 www.dsarchitecture.com http://www.dsarchitecture.com/

City of Cleveland: 2001 Payne Ave. Criteria Documents DS ARCHITECTURE

TABLE OF CONTENTS

EXECUTIVE SUMMARY

Executive Summary

Existing Conditions

Project Recommendations

Fire Protection Narrative

Plumbing Narrative

HVAC System Narrative

Electrical Narrative

Telecommunications Narrative

Civil Narrative

DRAWING SET

D1.00 Basement Demolition Plan

D1.01 First Floor Demolition Plan D1.02 Second Floor Plan D1.03 Third Floor Plan D1.04 Fourth Floor Demolition Plan D1.05 Fifth Floor Demolition Plan D1.06 Sixth Floor Demolition Plan

F0.01 General Information Fire Protection

FD1.00 Basement Floor Fire Protection Demolition

FD1.01 First Floor Fire Protection Demolition

FD1.02 Second Floor Fire Protection Demolition

FD1.03 Third Floor Fire Protection Demolition

FD1.04 Fourth Floor Fire Protection Demolition

FD1.05 Fifth Floor Fire Protection Demolition FD1.06 Sixth Floor Fire Protection Demolition

P0.01 General Information Plumbing PD1.00 Basement Floor Plumbing Demolition PD1.01 First Floor Plumbing Demolition PD1.02 Second Floor Plumbing Demolition PD1.03 Third Floor Plumbing Demolition PD1.04 Fourth Floor Plumbing Demolition PD1.05 Fifth Floor Plumbing Demolition PD1.06 Sixth Floor Plumbing Demolition

MD1.00 Basement Floor Mechanical Demolition

MD1.01 First Floor Mechanical Demolition

MD1.02 Second Floor Mechanical Demolition

MD1.03 Third Floor Mechanical Demolition

MD1.04 Fourth Floor Mechanical Demolition

MD1.05 Fifth Floor Mechanical Demolition

MD1.06 Sixth Floor Mechanical Demolition

MD1.07 Roof Mechanical Demolition

ED1.00 Basement Floor Electrical Demolition

ED1.01 First Floor Electrical Demolition

ED1.02 Second Floor Electrical Demolition

ED1.03 Third Floor Electrical Demolition

ED1.04 Fourth Floor Electrical Demolition

ED1.05 Fifth Floor Electrical Demolition

ED1.06 Sixth Floor Electrical Demolition

A1.00 Basement Floor Plan

A1.01 First Floor Plan

A1.02 Second Floor Plan

A1.03 Third Floor Plan

A1.04 Fourth Floor Plan

A1.05 Fifth Floor Plan

A1.06 Sixth Floor Plan

A2.00 Basement Floor Reflected Ceiling Plan

A2.01 First Floor Reflected Ceiling Plan

A2.02 Second Floor Reflected Ceiling Plan

A2.03 Third Floor Reflected Ceiling Plan

A2.04 Fourth Floor Reflected Ceiling Plan

A2.05 Fifth Floor Reflected Ceiling Plan

A2.06 Sixth Floor Reflected Ceiling Plan

A3.00 Exterior Elevations

A3.01 Exterior Elevations

A3.02 Exterior Elevations

A5.00 Enlarged Plans

F1.00 Basement Floor Fire Protection Plan

F1.01 First Floor Fire Protection Plan

F1.02 Second Floor Fire Protection Plan

F1.03 Third Floor Fire Protection Plan

F1.04 Fourth Floor Fire Protection Plan

F1.05 Fifth Floor Fire Protection Plan

F1.06 Sixth Floor Fire Protection Plan

P1.00 Basement Floor Plumbing Plan

P1.01 First Floor Plumbing Plan

P1.02 Second Floor Plumbing Plan

P1.03 Third Floor Plumbing Plan

P1.04 Fourth Floor Plumbing Plan

P7.00 Plumbing Riser Diagram

M1.00 Basement Floor Mechanical Plan

M1.01 First Floor Mechanical Plan

M1.02 Second Floor Mechanical Plan

M1.03 Third Floor Mechanical Plan

M1.04 Fourth Floor Mechanical Plan

M1.05 Fifth Floor Mechanical Plan

M1.06 Sixth Floor Mechanical Plan

M1.07 Roof Mechanical Plan

M7.00 Mechanical Diagram

M7.01 Mechanical Diagram

M7.02 Mechanical Diagram

M7.03 Mechanical Diagram

E2.00 Basement Floor Power Plan

E2.01 First Floor Power Plan

E2.02 Second Floor Power Plan

E2.03 Third Floor Power Plan

E2.04 Fourth Floor Power Plan

E2.05 Fifth Floor Power Plan

E2.06 Sixth Floor Power Plan

E2.07 Roof Power Plan

E7.00 Electrical Diagrams

ARCHITECTURAL CODE REVIEW

EXECUTIVE SUMMARY

Introduction

DS Architecture has been engaged by the City of Cleveland Mayor’s Office of Capital Projects (MOCAP) to evaluate and provide comprehensive criteria documentation for the renovation and structural re-programming of the historic Public Safety Central building at 2001 Payne Ave, Cleveland, OH

44114.

The technical baseline for this documentation was established through a multi-phase evaluation protocol involving a series of facility site visits to document and analyze the building's visible physical conditions. To determine visually obscured elements and identify structural discrepancies, these field observations were thoroughly cross-referenced with historical and existing building plans. All assessment metrics and existing condition baselines were determined strictly utilizing these non-invasive visual evaluation methodologies and archived documentation. Ultimately, these investigative criteria define the intentional scope of work for the project within the precise technical limits and boundaries of preliminary, non-destructive site observations.

Background

The civic landmark located at 2001 Payne Ave, Cleveland, OH 44114 is a prominent piece of Cleveland's municipal history, originally constructed in

1925 as the city's Central Police Station (now referred to as the Public Safety

Central building). Standing six stories tall and encompassing over 100,000 square feet, the structure reflects the robust design practices typical of 1920s structural engineering.

Architecturally, the building was engineered for high durability and fire resistance, utilizing a heavy reinforced concrete frame, concrete masonry units

(CMU), concrete slabs, and a flat concrete roof. This noncombustible masonry and concrete construction historically aligned the facility with rigid safety parameters, providing a sturdy backbone for decades of intensive municipal use.

The building served as a core public safety hub for the City of Cleveland for nearly three-quarters of a century before undergoing a major overhaul in the

1990s to modernize its internal infrastructure and spatial programming. Today, it remains an iconic civic landmark.

Several sources point to a tie with famous Cleveland Director of Public Safety

Elliot Ness. While there is significant evidence to suggest this, site visits to the facility did not uncover any additional information in this regard.

Image #1

EXISTING CONDITION

Exterior

The exterior facade of the historic Public Safety Central building at 2001 Payne

Ave stands as a prominent example of 1925 civic architecture. Characterized by its monumental presence, the six-story structure features a two-part exterior composition. The front façade is composed primarily of cut limestone with copper accents. This materiality wraps the sides of the building and terminates as it wraps to the rear. The less prominent rear façade is composed of a tan brick. (Image #1)

Structurally, the outer envelope functions as a heavy bearing wall system that wraps around the building's underlying reinforced concrete frame. A defining and highly visible characteristic of the facade is its expansive fenestration. The building retains a significant configuration of large windows that punctuate the masonry exterior across all levels.

The exterior facade of the six-story structure is currently in fair condition, with the primary brick masonry and integrated stonework showing no visible signs of major structural damage. However, environmental weathering is evident, particularly along drainage paths where water flows off the building envelope, resulting in localized dirt buildup and efflorescence.

Additionally, existing exterior metal handrails exhibit signs of surface rust that must be addressed during the rehabilitation phase. Vines can also be seen wrapping up the sides of the building further damaging the masonry and stone.

Restoring the facade to its original baseline condition will require systematic cleaning, targeted tuckpointing, and minor masonry repairs. (Image #4)

The building's fenestration is comprised primarily of large single-hung window units as well as a small section of fixed panel curtain wall on the entry and solarium at the building’s rear. It presented a varied condition baseline, with individual window units ranging from poor to decent condition. Several windows tested from the interior were unable to open as originally intended. Alternate #1 stipulates the full replication and replacement of all existing windows across all levels to match their original historic condition.

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Exterior doorways at the primary entrances, along the historically significant first floor hallway, appear to be made from coated, gold-colored metal. They are equipped with modern door hardware indicating that they were likely included in the previously discussed restoration of the building in the 90s. At the front of the building, there is a revolving door in the same style. These showed considerable damage with all being non-functional to some degree.

The roof is comprised of two systems, the first being a built up asphaltic system with a gravel ballast. This system show no major signs of damage, and looked to be recently repaired at several spots. The gravel ballast was very low however, which exposes the membrane to higher-than-normal UV loads potentially limiting it’s functional lifespan. The second system is an aged copper seamed roof that matches the copper accents. This system was not closely inspected due to physical limitations of the site survey. No major visible damage was visible from the ground level or the backside parapets. (Image #5)

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Historic Interior

The central hallway on the first floor functions as the primary circulation spine, connecting the surrounding administrative offices with a centralized core and shared restroom facilities. The interior finishes of the corridor feature green tile with integrated marble inlays traversing both the floor and wall surfaces.

Overhead, the ceiling is finished in an arched gypsum design punctuated by a series of small, brass chandeliers. This interior space remains in very good condition, exhibiting only minor superficial wear consistent with typical facility use. (Image #8)

A staircase crafted from matching marble connects the first and second floors.

This aesthetic palette extends to the upper level, which mirrors the lower floor's arched ceilings, brass chandeliers, and decorative marble inlays. (Image #10)

For its interior partitions, the second floor utilizes dark wood doors with integrated glass inserts. This design scheme continues into the main office footprint, where several partition walls feature translucent panels designed to maximize the distribution of natural light throughout the workspace. (Image

#12)

The exterior facade and these two distinct interior circulation zones comprise the historically significant elements of the structure. The fundamental intent of this criteria documentation is to prioritize specialized restoration and preservation efforts within these historic areas while transitioning the standard administrative and general office footprints into code-compliant, adaptable

"white box" spaces.

Image #8

Image #9

Image #10 Image #11 Image #12

Interior Structure

The primary structural framework of the building consists of a concrete-encased steel column grid extending both horizontally and vertically. The structural bays between the framing beams are spanned by precast concrete T-beams. This specific framing assembly was visually observed within the basement level and cross-referenced with the existing drawing set. Additional field exploration and destructive testing, if necessary, will be required in future phases to confirm whether this structural condition remains uniform throughout the upper levels of the facility. (Image #15)

The non-historically significant hallways feature a utilitarian mix of gypsum board and concrete masonry unit (CMU) partitions, finished with acoustic drop ceilings and standard floor tile. These secondary circulation zones exhibit a high degree of wear, localized damage, and surface deterioration. The facility's stairways reflect a similar utilitarian finish, constructed of steel pans topped with a high-friction flooring material. (Image #13)

A substantial portion of the fourth-floor footprint utilizes an elevated, raised floor system, which was historically installed to accommodate computer raceway cabling and utility infrastructure. This level is characterized by an expansive clear height, measuring approximately 14 feet from the finished floor to the underside of the ceiling, reflecting its reported historical use as a county detention space. Because the raised floor assembly remains intact, the underlying subfloor and structural deck configuration were not directly observed during preliminary site assessments. (Image #16) The raised floor likely accommodates reinforcement from the former jail cell structure embedments.

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Interior Condition:

The physical condition of interior finishes and vertical surfaces varies considerably throughout the facility. The majority of occupied and utilitarian zones exhibit light to moderate surface wear along the floors and walls. Localized degradation is present, including missing composition floor tiles, damaged acoustic ceiling tiles, and localized punctures in gypsum board partitions. Based on preliminary, non-invasive visual evaluations, none of these finish deficiencies appear structurally irreparable; however, from a programmatic and cost-efficiency standpoint, heavily worn materials may be more practical to demolish and entirely replace rather than restore.

A critical life-safety deficiency exists throughout the facility where utility and mechanical penetrations have been made through existing fire-rated wall and floor assemblies. In numerous instances, these penetrations were left unsealed, leaving sizable openings in the code-mandated fire barriers. This condition compromises the compartmentalization of the building and poses a serious life-safety hazard to occupants by allowing potential smoke and fire spread between adjacent zones. Consequently, every vertical and horizontal fire-rated assembly must undergo a comprehensive evaluation and detailed remediation, including certified firestopping and structural patching prior to future building occupancy.

(Image #18)

Preliminary site observations indicate the presence of a partial, localized fire suppression system. Based on historical facility context and testimonials from current occupying municipal staff, this partial infrastructure is entirely non-operational and has been completely out of service for several years. For the purposes of future space programming and egress calculations under the Ohio

Building Code (OBC), the facility must currently be evaluated under strictly unsprinklered threshold parameters.

See the Architectural Code Review for further information.

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PROJECT RECOMMENDATIONS

City of Cleveland: 2001 Payne Ave. Criteria Documents

XECUTI

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DS ARCHITECTURE

Life Safety and Code Compliance:

These design criteria were developed in collaboration with the project team at the

Mayor’s Office of Capital Projects (MOCAP) based on a preliminary understanding of the city's functional and programmatic needs. The overarching intent is to bring the facility up to modern life-safety and building code standards while maintaining spatial flexibility to accommodate the city's varied programming. The definitive criteria are outlined across the project recommendations, engineering narratives, and accompanying drawing set.

First and foremost, the building must be brought into full compliance with current regulatory standards for life safety and accessibility. The design criteria target compliance parameters for Type II-A construction as specified in previous renovations. To establish this fire-resistance rating, all existing utility and mechanical penetrations compromising the fire-rated walls and floor assemblies must be completely sealed with certified fire-rated systems in compliance with the

2024 Ohio Existing Building Code.

In addition, to successfully resolve current egress limitations, satisfy allowable building height parameters, and maximize the usable floor area, the facility must be upgraded to a comprehensive, fully automatic sprinkler system. The technical baseline, zoning, and performance requirements for this automatic infrastructure are detailed within the mechanical engineering narrative and drawing set. Finally, all core plumbing systems have been engineered to meet or exceed the minimum fixture distribution thresholds required under the 2024 Ohio Plumbing Code.

The facility will be brought into full compliance with all relevant municipal and building codes. Please reference the "Architectural Code Review" for the comprehensive baseline assumptions and the preliminary regulatory code analysis.

Interior Historic Restoration:

The overriding design intent for the historically designated interior spaces is to preserve and restore the historic spaces of the building to its original baseline condition, balancing historic integrity with modern programmatic requirements and code compliance. To maintain visual continuity, new wall punctures along the historic circulation hallways have been strictly minimized. In localized areas where new openings are structurally required, the original marble base detail is to be seamlessly and naturally extended to match the adjacent historic profiles.

Non-functional exterior doorways along the historically significant first-floor corridor will be completely replaced with units engineered to match the original architectural aesthetic, inclusive of all integrated hardware and accessories. In instances where interior door swing configurations must be flipped or reversed to satisfy modern egress parameters, all corresponding hardware, framing components, and accessories must be replaced to match the original historic finishes.

V

Core Spaces

The remainder of the building's interior footprint will transition into a clean, adaptable "white box" configuration to maximize spatial flexibility for future municipal tenants and varied programming needs. All non-historic interior gypsum board partitions must undergo comprehensive remediation, including patching and paint application executed to a Level 4 finish. For surfaces defined by painted concrete masonry units (CMU), the partitions must be thoroughly cleaned, prepped, and touched up paint to match the existing baseline color and sheen.

Secondary ceiling infrastructure, including acoustic drop ceiling grids, is to be salvaged and retained wherever technically feasible. Existing grid systems are to be structurally repaired, aligned, and outfitted with new, uniform acoustic tiles.

Where original gypsum board ceilings exist, they are to be patched, repaired, and painted to match the adjacent vertical wall surfaces. To maintain clean visual lines within the primary administrative footprints large, visually obtrusive mechanical, electrical, or plumbing equipment routing through office spaces are to be be fully enclosed within newly constructed gypsum board soffits.

Furthermore, all painted metal elements including interior door frames, circulation handrails, ventilation grilles, and miscellaneous trim are to be cleaned, prepped, and painted to cleanly match adjacent architectural surfaces.

Existing floor finishes within the non-historic secondary hallways and utilitarian stairways are to remain intact as-is. All other non-historic floor coverings throughout the general office footprints must be removed complete, with the underlying subfloor decks mechanically prepared and leveled to receive new finish flooring materials.

The two existing elevator cabs are to be replaced, which includes installing new interior wall and ceiling finishes, durable floor coverings, entry doors, updated lighting, and modern operating fixtures and cab components. Existing elevator machine, hoistway, and drive equipment shall be retained in place, serviced, and protected throughout construction.

Security Area

The security screening area detailed on Sheet 1/A2.00 is designed to establish a secure and controlled portal for all building ingress and egress aligning with the rigorous safety standards required for administrative municipal and city hall functions. The primary spatial layout places a centralized security desk immediately adjacent to the main public entrance to grant personnel unobstructed, direct lines of sight over all incoming and outgoing pedestrian traffic. Under this operational protocol, visitors must route through the active security checkpoint and the main reception lobby before gaining authorization or physical access to the building's interior core.

To prevent the circumvention of established security protocols, the door directly opposite the screening checkpoint must be fully integrated into the facility's electronic access control system. This portal will be equipped with specialized hardware and wiring to allow security personnel to remotely allow access directly from the primary desk console creating a secure buffer zone.

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The administrative footprint directly behind the security desk functions as a combined security operations center and centralized mail room. This workspace will be outfitted with a dedicated closed-circuit television (CCTV) monitor matrix, displaying high-definition feeds from surveillance cameras deployed across all interior circulation paths and exterior envelope zones. A vision glass panel will be integrated into the partition wall separating the security office from the front desk.

This connection allows a single staff member to simultaneously manage front-counter visitor intake and monitor the surveillance suite without compromising the physical security or operational integrity of the station.

In addition to its monitoring functions, this suite will serve as the central mail and parcel hub for the facility, where all incoming packages are dropped off and outgoing shipments are processed at the front counter. To facilitate the secure drop of smaller mail, the existing entry vestibule will be fitted with a heavy-duty, secure envelope drop box system.

Exterior

The primary design intent for the building exterior is to restore and repair the historic facade to its original baseline condition. The entire outer envelope must undergo a comprehensive cleaning to remove localized dirt accumulation, surface rust, and efflorescence staining. Additionally, all invasive vines and vegetation propagating across the facade is to be removed from the stone and masonry joints to halt active mechanical degradation.

Alternate #1 (Exterior Window Replacement) includes the replacement of all operable exterior window assemblies across all levels to match the profile and character of the original historic fenestration.

To protect the structural integrity of the outer envelope and mitigate water infiltration, targeted mortar tuckpointing must be executed across all brick masonry joints wherever deterioration or cracking is identified. Exterior metal handrails showing signs of oxidation must be completely stripped of failed paint layers, prepped down to bare substrate, and recoated with high-durability coatings formulated to match the original historic aesthetic.

At the ground level, any structurally compromised or damaged concrete footers must be completely remediated and repaired. Furthermore, superficial fracturing and deep structural cracks intersecting the stone facade, entry steps, and integrated hardscape/landscaping features must be cleaned and injected with a high-performance, color-matched flexible exterior epoxy system. Finally, all damaged elements of the architectural copper facade accents and associated perimeter site utilities must be seamlessly repaired or replaced to match the original craftsmanship and material finishes.

Complete tear-off of the existing gravel-ballasted built-up roof down to the bare reinforced concrete deck. Mechanically clean and inspect the slab for structural defects, install new continuous rigid insulation to meet current Ohio Energy Code requirements. Single-ply/modified bitumen membrane with a manufacturer-specified gravel ballast overlay is to be used.

1. FIRE PROTECTION SYSTEM NARRATIVE

Design Parameters

Design shall comply with all Federal, State of Ohio, and local laws, regulations and standards, as adopted by the agencies having jurisdiction, including reasonably anticipated revisions based on emerging trends in building regulations. Where any of the laws, regulations, or standards differs, the most stringent interpretation shall apply.

The building’s automatic sprinkler system shall be designed by a licensed fire protection contractor. The construction documents shall include performance design requirements for bidding purposes. Hazard classifications shall be indicated on the drawings for all occupied areas of the building required to be protected by the automatic sprinkler system

Codes and Standards

All work shall be done in accordance with applicable provisions of the current edition of the following documents:

• 2022 NFPA 13 (Installation of Sprinkler Systems)

• 2019 NFPA 14 (Installation of Standpipe and Sprinkler Systems)

• 2021 NFPA 101 (Life Safety Code)

• 2025 Ohio Fire Code

Fire Protection System

All existing fire sprinkler piping and standpipes shall be replaced back to the existing 8” fire water service entrance located in the basement mechanical room. All fire equipment shall be replaced – including but not limited to the fire pump, jockey pump, and pump controllers.

A new ASSE 1048 double detector check assembly shall be provided on the existing 8” fire water service. Fire department connection(s) (FDC) and post indicator valve (PIV) locations shall be coordinated with local AHJ.

A complete automatic fire suppression sprinkler system shall be provided for the entire building.

A fire pump shall be provided to provide the required pressure to the building sprinkler system. The required fire pump flow rate and pressure capacity shall be determined by the Engineer of Record utilizing current flow test data.

The sprinkler system’s flow and tamper switches will interface with the building’s addressable fire alarm system to provide notification upon flow of sprinkler water.

Sprinkler heads in spaces with ceilings shall be concealed style heads. In spaces with no ceilings and exposed structure, sprinkler heads shall be upright type. In areas where potential damage to heads may occur, sprinkler heads shall be provided with head guard cages.

A manual wet standpipe system will be provided for the building with fire department hose connections located on each level landing within all stairwells.

Locate valves, controls, and other items requiring regular maintenance and/or inspection so that they may be accessed from floor level, where possible. If floor access is not possible, provide a permanent means of access for maintenance and/or inspection.

All fire protection piping shall be labeled, color-coded, and shall indicate direction of flow.

2. PLUMBING SYSTEM NARRATIVE

Design Parameters

Design shall comply with all Federal, State of Ohio, and local laws, regulations and standards, as adopted by the agencies having jurisdiction, including reasonably anticipated revisions based on emerging trends in building regulations. Where any of the laws, regulations, or standards differs, the most stringent interpretation shall apply.

Codes and Standards

All work shall be done in accordance with applicable provisions of the current edition of the following documents:

• 2024 Ohio Building Code

• 2024 Ohio Plumbing Code

• International Energy Conservation Code

• ASHRAE Handbook, Fundamentals

• ASHRAE 90.1 Energy Standard for Buildings

Sanitary System

All existing sanitary waste and vent piping shall be replaced. New sanitary waste and vent piping shall be installed to serve the restrooms and other plumbing fixtures in the building.

Underground sanitary waste and vent piping shall be service weight gasketed hub and spigot cast iron or Schedule

40 PVC.

Aboveground sanitary waste and vent piping shall be hubless cast iron or Schedule 40 PVC. PVC piping will not be used in spaces open to return air plenums. All sanitary piping shall be labeled, color-coded, and shall indicate direction of flow.

Floor drains shall be provided in each restroom and mechanical room. All floor drains will be supplied with barrier-type trap seals to assure trap seal.

Elevator Pit

The elevator pit shall have a sump pump with high level alarm that drain indirectly to the sanitary system. All pumped discharge piping shall be labeled, color-coded, and shall indicate direction of flow.

Storm Drainage System

All existing storm piping shall be replaced. Primary and emergency overflow roof drains shall be provided to drain all roof areas. Secondary roof drains shall discharge to the exterior in observable locations via outlet nozzle.

All roof drain bodies and horizontal storm piping will be insulated.

Underground storm piping shall be service weight gasketed hub and spigot cast iron or Schedule 40 PVC.

Aboveground storm piping shall be hubless cast iron or Schedule 40 PVC. PVC piping will not be used in spaces open to return air plenums. All storm piping shall be labeled, color-coded, and shall indicate direction of flow.

Potable Water System

All existing domestic water distribution piping shall be replaced back to the existing 4” domestic cold water service entrance located in the basement mechanical room. All plumbing equipment shall be replaced – including but not limited to the domestic booster pump, hot water recirculation pump, and domestic water heaters.

A new ASSE 1013 reduced pressure backflow preventer shall be provided to the existing service entrance.

New domestic water distribution piping shall be provided to serve all plumbing fixtures and mechanical equipment in the new design.

Domestic water distribution piping shall be zoned into low-pressure and high-pressure zones. Current flow test data shall be used to determine available static pressure.

A duplex, variable speed domestic water booster system shall be provided to serve the high-pressure zone and meet minimum pressure at the most remote fixture. The booster system shall provide relevant statuses, setpoints, and alarms to the building automation system.

Domestic water piping will be Type-L copper with soldered joints. All potable cold water will have insulation. All potable hot water supply and return piping will have fiberglass insulation with a vapor barrier jacket.

Bronze, full-port ball valves will be used on domestic water piping less than 3 inches for shut-off. Butterfly valves will be used on sizes 3 inch and larger.

Locate valves, controls, and other items requiring regular maintenance and/or inspection so that they may be accessed from floor level, where possible. If floor access is not possible, provide a permanent means of access for maintenance and/or inspection.

Domestic Water Heating System

Domestic water heating shall be generated by a steam-to-domestic hot water heat exchanger with paired hot water storage located in the basement mechanical room. The heat exchanger shall tie into the existing Cleveland

Thermal/Corix steam service. The water heater shall provide relevant statuses, setpoints, and alarms to the building automation system. The system shall be sized to meet the full domestic hot water demand within the building. Tank storage temperature shall be set for 140°F.

A master thermostatic mixing valve station shall be provided for the hot water system to limit the hot water temperature to 131°F for distribution to the building plumbing fixtures.

A hot water recirculation system shall be provided to minimize water waste and hot water wait times at each fixture.

The recirculation system shall maintain a minimum return temperature of 115°F. The maximum allowable developed length of hot water piping from the source of hot water to fixtures shall be in accordance with IECC Table C404.5.1.

Electric heat trace shall not be used as a means of temperature maintenance.

Mixing valves complying with ASSE 1070 will be provided at all public hand washing hot water supply branches as required by the Ohio Plumbing Code.

Plumbing Fixtures

Restrooms will be provided with plumbing fixtures meeting the requirements of the Americans with Disabilities Act

(ADA).

Water closets in main restrooms will be wall-mounted, vitreous china construction, elongated bowl with siphon jet flush valve action. All standard water closets will have rim at 15” AFF. ADA water closets will have rim at 17” AFF.

Flush valves will be hardwired, sensor-operated with a flushing rate of 1.28 GPM.

Urinals in main restrooms will be wall-mounted, vitreous china construction. Flush valves will be hardwired, sensor-operated with a flushing rate of 0.5 GPF.

Lavatories will be counter mounted type, vitreous china. Lavatories will have manual faucets with lever handles and

0.5 GPM aerators. Lavatories will have flexible vinyl covered insulation installed on the drain, and hot and cold water supply tubes and stop valves.

Showers will have pressure balancing mixing valves and 1.5 GPM shower heads.

Electric water coolers will be dual-height, wall-hung, refrigeration system (utilizing R-134a), with pushbutton, electric bottle filler, and handicapped access.

Sinks will be type 304 stainless steel, 18 gauge with lever handles and swing spouts.

Mop sinks will be 24” x 24” in size, floor-mounted, terrazzo with faucet having hose thread outlet, bucket hook, and vacuum breaker.

Wall hydrants will be installed on the exterior of the buildings at approximately 100-foot intervals.

1. HVAC SYSTEM NARRATIVE

Design Parameters

Design shall comply with all Federal, State and Local laws, regulations, and standards, as adopted by the agencies having jurisdiction, including reasonably anticipated revisions based on emerging trends in building regulations.

Design shall also comply with the City of Cleveland Building Design Standards (most current edition) and the City of Cleveland Direct Digital Controls and Building Automation Standards (most current edition). Where any of the laws, regulations, or standards differs, the most stringent interpretation shall apply.

The Engineer Of Record (EOR) who shall be a registered professional engineer with the state of Ohio shall provide revised space load and ventilation calculations based on the current building codes for the final space usage and occupancy. All new equipment shall be sized from the revised building calculations based on the City of Cleveland

Building Design Standards and good engineering practices. All HVAC equipment sizing listed in this document are approximations based on preliminary block calculations for space square footage of office space usage. All final

HVAC equipment sizing shall be confirmed by the EOR.

Building Description

The existing six-story with full basement, 97,000 square foot building will be mechanically fully renovated. The building will house City offices, Public Health offices, and a Community Room space. See architectural narrative section for additional space programming and building specific information.

Existing Building Systems

1. Cooling

a. There is a 12,600 CFM variable volume split DX indoor Heat Recovery Unit (HRU-1) located in the southwest corner of the primary basement Mechanical Equipment Room (MER). The unit consists of supply fan, return/exhaust fan, heat recovery wheel, filter section and DX coil (no heating provided). The DX coil is piped to a roof mounted Air-Cooled Condensing Unit (CU-1) located on the partial fifth floor roof. This system serves the existing basement floor of the building and appears to be 100% OA for the existing locker room spaces. This unit was installed in 1999 and is no longer operational and requires replacement.

1) Each zone is provided with a VAV box with a Heating Hot Water (HHW) coil that likely are used as both summer reheat and winter heating.

b. There are a 10,800 CFM variable volume split DX indoor Air Handling Unit (AHU-1) and inline Return

Fan (RF-1) located in the north secondary basement MER. The AHU consists of supply fan, filter section and DX coil (no heating provided). The DX coil is piped to a roof mounted Air-Cooled Condensing Unit (CU-2) located on the partial fifth floor roof. This system serves the first floor of the building. This unit was installed in 1999 and is past its life expectancy and requires replacement.

1) Each zone is provided with a VAV box with a HHW coil that is likely used as both summer reheat and winter heating.

c. There are a 10,800 CFM variable volume split DX indoor Air Handling Unit (AHU-2) and inline Return

Fan (RF-2) located in the third floor MER. The AHU consists of supply fan, filter section and DX coil (no heating provided). The DX coil is piped to a roof mounted Air-Cooled Condensing Unit (CU-3) located on the partial fifth floor roof. This system serves the second floor of the building. This unit was installed in 1999 and is no longer operational and requires replacement.

1) Each zone is provided with a VAV box with a HHW coil that is likely used as both summer reheat and winter heating.

d. There are an 11,740 CFM variable volume split DX indoor Air Handling Unit (AHU-3) and inline

Return Fan (RF-3) located in the third floor MER. The AHU consists of supply fan, filter section and DX coil (no heating provided). The DX coil is piped to a roof mounted Air-Cooled Condensing Unit (CU-4) located on the partial fifth floor roof. This system serves the third floor of the building. This unit was installed in 1999 and is past its life expectancy and requires replacement.

1) Each zone is provided with a VAV box with a HHW coil that is likely used as both summer reheat and winter heating.

e. There is a 90 TON, 30,335 CFM variable volume built up Rooftop Air Handling Unit (RTU-4) located on the partial fifth floor roof. The unit has DX cooling and no heating. This system serves the fourth floor of the building with duct taps to serve the fifth floor in the future. This unit was installed in 1999 and is past its life expectancy and requires replacement.

1) Each zone is provided with a VAV box with a HHW coil that is likely used as both summer reheat and winter heating.

f. There is an individual split system that serves the sixth floor elevator machine room. The condensing units are roof mounted on the roof above. These units were installed later than 1999 but a definitive date could not be established. They appear to be in poor condition and require replacement.

g. There are two 10-ton split DX indoor vertical computer room air conditioning units (AHU-5, AHU-6) located in the third floor Data Room. The units consist of supply fan, filter, humidifier and a DX coil piped to a roof mounted Air-Cooled Condensing Unit (CU-5, CU-6) located on the partial fifth floor roof. These systems are dedicated to the third floor Data Room. These units were installed in 1999 and is no longer utilized with the removal of the Data Room equipment.

2. Heating

a. A steam to water heat exchanger located in the northwest corner of the primary basement mechanical room utilizes a utility steam service to provide HHW for the building. The HHW system is circulated through the heat exchanger and out throughout the building by two floor mounted end suction circulation pumps located adjacent to the steam heat exchanger. This equipment was installed in 1999 and show significant wear and are past their life expectancy.

b. There are VAV boxes with HHW coils located throughout the basement, first, second, third and fourth floors of the building that are likely used as both summer reheat and winter heating. Most units show significant wear and are past their life expectancy with many removed or inoperable.

c. There are various HHW cabinet unit heaters located adjacent to the first floor main entry doors and on several floors within the north central exterior stair tower. Most units show significant wear and are past their life expectancy.

d. There are various HHW wall mounted fin tube heaters located throughout the east portion of the fifth and six floors. Most units show significant wear and are past their life expectancy

e. There are various HHW wall and floor mounted cast iron radiators located throughout portions of the fifth and six floors. Most units show significant wear and are past their life expectancy.

3. Control System

a. The existing Philips Teletrol Controls were installed in 1999 and are outdated and out of production and will need a complete replacement to meet the current City of Cleveland controls standards for the new equipment.

Figure 1: Existing Incoming Steam Figure 2: Existing Steam to Hot Water Heat Exchanger

Figure 3: Existing Steam Separator and Flash Tank Figure 4: Existing Heating Hot Water Pumps

Figure 5: Existing Heat Recovery Unit (HRU-1)

Figure 6: Existing Air Handling Unit (AHU-1) Figure 7: Existing Return Fan (RF-1)

Figure 8: Existing Air Handling Unit (AHU-2) Figure 9: Existing Return Fan (RF-2)

Figure 10: Existing Air Handling Unit (AHU-3) Figure 11: Existing Return Fan (RF-3)

Figure 12: Existing Air Cooled Condensing Units (CU-1/CU-4/CU-2/CU-3)

Figure 13: Existing Computer Room Unit (AHU-5) Figure 14: Existing Air Cooled Condensing Units (CU-5/CU-6)

Figure 15: Existing Rooftop Air Conditioning Unit (RTU4)

New Building Systems

1. General

a. Codes and Standards

1) 2024 Ohio Building Code

2) 2024 Ohio Mechanical Code, 2021 IMC Amended

3) 2019 ASHRAE 90.1 – Energy Standard for Buildings

4) 2019 ASHRAE 62.1 – Ventilation for Acceptable Indoor Air Quality

5) SMACNA (most current edition)

6) City of Cleveland Building Design Standards (most current edition)

7) City of Cleveland Direct Digital Controls and Building Automation Standards (most current edition)

b. Design Temperatures

1) Outdoor cooling design dry-bulb/wet-bulb temperatures (0.4%): 88.8°F DB/85.9°F WB

2) Outdoor heating design dry-bulb temperature (99.6%):7.4°F

3) General Indoor space conditions: 70°F in winter, 75°F 50% RH summer are recommended but EOR shall verify with current City Of Cleveland Design Standards

4) Mechanical Rooms: 65°F in winter, 80°F in summer are recommended but EOR shall verify with current City Of Cleveland Design Standards

2. Building Automation Controls

a. Controls - HVAC

1) Full new Building Automation System (BAS) provided utilizing BACnet controls using ASHRAE standard 135 compatible technologies and ANSI/EIA 709.1B with full equipment operational graphics designed per City of Cleveland Direct Digital Controls and Building Automation Standards (most current edition). Provide a master controller in the main basement MER with local DDC controllers located in each secondary MER and at each piece of equipment.

a) All control devices shall be non-proprietary single sourced devices.

b) All new BAS graphics developed and implemented for all HVAC equipment per

Cleveland Direct Digital Controls and Building Automation Standards (most current edition).

c) Onsite workstation provided per Cleveland Direct Digital Controls and Building Automation Standards (most current edition).

3. Utility Chilled Water and Steam Services

a. Chilled Water - Cooling

1) Incoming chilled water service of approximately 300 tons of cooling will be provided through a new chilled water utility connection to Corix (Cleveland Thermal). Corix will provide a new plate and frame heat exchanger for installation in the facility once the EOR has provided final utility sizing needed based on final building calculations. The new floor mounted plate and frame heat exchanger shall be located in the southeast corner of the primary basement MER.

The building side of the heat exchanger shall be a variable primary designed system. This system shall consist of two variable speed end-suction CHW pumps, each sized at 100% capacity for redundancy. The pumps shall be floor mounted on concrete equipment pads of no less than 6” thick. Each pump shall be provided with a VFD drive and that drive shall be wall mounted adjacent to the pump. A new self-contained chilled water chemical treatment system shall be provided and selected based on input from the city maintenance staff.

a) Corix provides 42°F incoming chilled water to the utility side of the plate and frame heat exchanger. Corix notes that on average 2.5°F is lost across the heat exchanger system and recommends a 15°F delta be used for the building side. EOR shall confirm all current operational parameters with Corix upon final sizing coordination.

b) Primary CHW loop piping shall be routed up vertically though the existing vertical chase located on the west side of the west stair tower to the AHUs on the third, fifth and sixth floors.

c) The EOR shall review the requirements of chilled water temperature reset per ASHRAE and incorporate as required in the final system design.

d) The 300 tons of estimated chilled water capacity is based on 325 to 350 square foot per ton and preliminary building block loading calculations. The EOR shall confirm final sizing based on building calculations performed for final building shell conditions, occupancy and use classification.

b. Steam - Heating

1) Incoming steam heating water service of approximately 3,000 MBH of heating is provided through an existing 135 PSI steam utility connection to Corix (Cleveland Thermal). Corix will provide a new steam utility service shut off valve and blind flange for system connection. No steam condensate return connection is provided form Corix so all steam condensate shall be discharged to drain per code. The owners steam side system shall be comprised of the following; a new 2-stage steam pressure reducing station, a new shell and tube steam to heating hot water heat exchanger, a new high temperature condensate receiver tank with two discharge pumps (each pump sized for 100%), a new flash tank and a new blow down separator with domestic cold water connection for tempering discharge. The existing steam utility connection is in the northwest corner of the primary basement MER and the new steam system shall be located adjacent to it in the northwest corner. The HHW side of the heat exchanger shall be a variable primary designed HHW system and consist of two variable speed end-suction HHW pumps, each sized at 100% capacity for redundancy. The pumps shall be floor mounted on concrete equipment pads of no less than 6” thick. Each pump shall be provided with a VFD drive and that drive shall be wall mounted adjacent to the pump. A new self-contained HHW chemical treatment system shall be provided and selected based on input from the city maintenance staff.

a) Pressure reducing station first stage shall reduce from 135 PSI to 35-25 PSI steam and the second stage reduce from 35-25 PSI to 20-15 PSI steam. EOR to determine final pressure reducing steps based on their final system design.

b) Steam to heating hot water heat exchanger shall be provided with minimum 3/4” tubes and shall be designed to produce 150°F HHW with a 120°F return water temperature.

c) Primary HHW loop piping shall be routed up vertically though the existing vertical chase located on the west side of the west stair tower to serve the VAV boxes installed on all floors and the AHUs on the third, fifth and sixth floors.

d) The EOR shall review the requirements of HHW temperature reset per ASHRAE and incorporate as required in the final system design.

e) The 3,000 MBH of estimated heating hot water capacity is based on 30 to 35 btu per square foot and preliminary building block loading calculations. The EOR shall confirm final sizing based on building calculations performed for final building shell conditions, occupancy and use classification.

4. Basement Floor

a. Cooling

1) Variable Volume Air Handling Unit (AHU-0) with Heating Hot Water (HHW) and Chilled Water (CHW) coils. Unit shall be designed to provide 55°F supply air when in cooling operation on a design day but shall have supply air temperature reset programming incorporated per ASHRAE 90.1. Unit shall be provided with air side enthalpy economizer operation for energy efficiency. Unit shall be located in the southwest corner of the primary basement MER.

2) Single duct VAV boxes with HHW reheat coil will be located in each thermal zone to achieve thermal control.

b. Heating

1) The VAV AHU-0 shall be provided with an ambient ramp control sequence to increase the discharge air temperature up to 65°F when unit is in heating operation on a design day but shall have supply air temperature reset programming incorporated per ASHRAE 90.1.

2) Single duct VAV boxes with HHW reheat coil will be located in each thermal zone to achieve thermal control. The HHW coil will be used for both winter heating and summer reheat.

c. Ventilation

1) Outside air will be provided to the AHU through adjacent MER room wall louvers and associated ductwork then mixed with the return air stream. The AHUs will also be equipped with air-side enthalpy economizer control to minimize energy consumption.

d. Zoning

1) The system shall be divided into various thermal zones each served by individual VAV boxes.

All individual offices, conference rooms and spaces with unique occupancy requirements or exterior exposure shall be individual thermal zones, each provided with a dedicated VAV box and thermostat. Common spaces with similar occupancy and exposure may be fed from a single box. Larger open office areas shall be split into separate zones based on layout and exterior exposure. Final zoning shall be determined by the EOR using good engineering practices. EOR shall provide a zoning plan to owner for review of individual zones and final signoff.

e. Components

1) VAV Air Handling Unit (AHU-0): An approximate 45-ton floor mounted indoor Air Handling

Unit providing 15,000 CFM and 15-25% OA (Similar to Trane PSCA size 30). The AHU will have VFD driven variable speed plenum fan arrays of a minimum of two (2) fans for both the supply and return fan systems. EOR shall determine if final unit size and airflow parameters per the final load calculations require the unit to be provided with energy recovery per ASHRAE 90.1.

2) Single duct VAV boxes with a minimum 2-row HHW reheat coil. The HHW reheat coil will utilize a modulating HHW control valve…