SOW Piqua water heater.pdfSOW Piqua water heater.pdf

Piqua National Guard Armory 623 E. Ash Street Piqua, OH 45356

Scope of Work: Water Heater Replacement

📋📋 1. Project Objective

Furnish all labor, materials, equipment, and disposal services necessary to safely decommission and remove the existing failed A.O. Smith water heater and install a new, functionally equivalent replacement unit. All work must comply with current local commercial plumbing, gas, electrical, and building codes.

⚙ 2. Equipment Specifications

Specification Existing Unit Details Replacement Unit Requirements

Manufacturer A.O. Smith A.O. Smith (or approved equivalent)

Model Number BTX 100 120 Functionally equivalent current model

Item ID # 9281082000 N/A

Serial Number 1141M001293 N/A

Fuel Type Natural Gas Natural Gas

Input BTU/HR 100,000 100,000 (Minimum)

Recovery Rate 116.36 Gallons/Hour 116.36 Gallons/Hour (Minimum)

Electrical Power 120V / 60Hz / 5 Amps 120V compatible

Max Working Pressure 150 PSI 150 PSI

🛠🛠 3. Contractor Responsibilities

The selected contractor shall perform the following phases of work:

Phase 1: Decommissioning & Removal

Task Description

Isolation Shut off the natural gas supply, domestic water supply, and 120V electrical power to the existing unit.

Drainage Safely drain the 100-gallon tank to an approved floor drain or exterior location.

Disconnection Disconnect water lines, the natural gas hard-pipe/flex line, the 120V electrical connection, and the exhaust venting.

Disposal Provide necessary manpower/rigging to remove the commercial heavy-duty tank.

Dispose of the failed unit legally off-site, inclusive of all environmental and recycling fees.

Phase 2: Installation & Connection

System Installation Requirements

Site Prep Clean the installation pad/area. Install a new commercial-grade drain pan beneath the unit if required by local code.

Positioning Rig and set the new equivalent water heater in place, ensuring proper manufacturer-specified clearances for maintenance and combustibles.

Plumbing Reconnect cold water inlet and hot water outlet. Install new dielectric unions, isolation valves, and a properly sized commercial thermal expansion tank on the cold water line.

Natural Gas Reconnect to the existing natural gas supply. Install a new sediment trap (drip leg) and gas shut-off valve. Ensure gas line sizing is adequate for a 100,000 BTU draw.

Venting Reconnect the exhaust system to the existing flue/PVC venting. Ensure venting material meets manufacturer specifications for high-efficiency models and that pitch and seals are correct.

Electrical Reconnect the 120V (5 Amp) power supply to the unit's blower/control module, ensuring proper grounding.

Safety Devices

Install a factory-supplied Temperature and Pressure (T&P) relief valve. Hard-pipe the discharge line to within 6 inches of the floor or an approved drain.

Phase 3: Testing & Commissioning

Action Verification & Handoff

System Purge

Fill the 100-gallon tank completely and bleed all air from the domestic hot water system.

Leak Testing

Perform hydrostatic pressure tests on water connections. Perform soap-bubble or electronic sniffer tests on all modified gas connections to ensure zero leaks.

Ignition & Draft

Power the unit on, verify successful electronic ignition, and confirm proper exhaust draft with no spillage.

Handoff Clean the work area. Provide the facility manager/owner with the new O&M manuals, warranty paperwork, and a demonstration of the digital temperature controls.

🚫🚫 4. Exclusions (Unless otherwise negotiated)

Category Excluded Items

Electrical Upgrades to the main electrical panel or pulling new 120V circuits to the mechanical room.

Structural Widening of doors, removal of walls, or structural reinforcing to allow the new 100-gallon tank into the building.

Venting Complete replacement of the building's core exhaust chimney/flue (unless existing PVC/vent is incompatible with the new high-efficiency unit).

5. Bidding Information

Bids will only be accepted through the OhioBuys Portal

Pre-bid walk through will take place on 14 SEP 2026 at 9:00am at the Piqua Armory located at 623 E. Ash Street Piqua, OH 45356. Interested contractors are strongly encouraged to attend the pre-bid. No guarantee of site visits outside of this date can be made.

Piqua, OH 45356

Scope of Work: Water Heater Replacement

The POC is Joshua Farrier and he can be reached at (614)989-9854 M-F between the hours of 8am and 4pm

Key Takeaway: Because the BTX 100 120 is a commercial-grade, high-capacity unit (100 gallons) that requires both natural gas and a 120V electrical connection for its controls/blower, the contractor will need to handle both gas fitting and minor electrical work. Ensure the selected contractor is licensed for commercial plumbing and gas fitting in your jurisdiction.