STATEMENT OF WORK - Western Shelter HVAC Units McClellan CA.pdf
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- Attached to
- HVAC Maintenance (McClellan, California)
- Solicitation number
- 70FB8026Q00000054
- Issued by
-
Federal Emergency Management Agency
About this file
This is a Statement of Work for the Federal Emergency Management Agency at McClellan, California, detailing preventive maintenance requirements for four Western Shelter CL-ACXE1200 HVAC units (Environmental Control Units). The equipment comprises four identical units rated at 208/240V, 60Hz, Single-Phase, 30A, identified by individual serial numbers (20235S90UV, 20235TKJUV, 20233TP7UV, and 20215KHKUV), all located at the McClellan, CA 95652 facility. The contractor must provide all labor, transportation, tools, equipment, materials, and expertise necessary to perform single-site seasonal preventive maintenance and operational tune-ups designed to optimize system efficiency, ensure structural and operational readiness, and document baseline performance metrics for each asset.
The scope of work encompasses five primary tasks: (1) structural casing, mounting, and duct connection inspections for rust, structural integrity, and seal verification; (2) filter cleaning and replacement with 16" x 25" x 1" high-efficiency filters, condenser and evaporator coil cleaning, and condensate drain system flushing; (3) motors and drive system inspection and testing, including electrical system tightness with torque specifications; (4) safety controls validation of pressure and thermal switches and thermostat interconnect testing; and (5) identification and estimation of any deficiencies requiring unscheduled repairs, which require written authorization from the Contracting Officer before proceeding. Deliverables include field service reports for each unit within five business days of completion, containing pre- and post-service electrical draw measurements, refrigerant pressure logs, ambient temperature profiles, signed technical checklists, and identified deficiencies with repair estimates. All work must be completed within 90 business days from contract notice to proceed. Contractor qualifications require valid EPA Section 608 Certification and proven experience servicing mobile/expeditionary tactical environmental systems. Facility access requires 48-hour advance notice of all technician names to the McClellan Site Manager, valid government-issued photo identification, and mandatory personal protective equipment compliance.
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STATEMENT OF WORK
Federal Emergency Management Agency – McClellan, CA
Project Title
Preventive Maintenance for Four Western Shelter CL-ACXE1200 HVAC Units
1. Objective & Scope
The Contractor shall provide all labor, transportation, tools, equipment, materials, and expertise necessary to perform single-site seasonal preventive maintenance and operational tune-ups on four (4) Western Shelter CL-ACXE1200 Environmental Control Units (ECUs) located in McClellan, California. The objective is to optimize system efficiency, ensure structural and operational readiness for the upcoming season, and document baseline performance metrics for each asset.
2. Equipment & Location Manifest
The work encompasses four (4) HVAC units deployed at one installation.
Asset Model for All Units: Western Shelter CL-ACXE1200, 208/240V, 60Hz, Single-Phase, 30A
Service Location: McClellan, CA 95652
Unit Model Serial Number Location
Unit 1 Western Shelter CL-
ACXE1200
20235S90UV McClellan, CA 95652
Unit 2 Western Shelter CL-
ACXE1200
20235TKJUV McClellan, CA 95652
Unit 3 Western Shelter CL-
ACXE1200
20233TP7UV McClellan, CA 95652
Unit 4 Western Shelter CL-
ACXE1200
20215KHKUV McClellan, CA 95652
3. Specific Tasks & Technical Requirements
The Contractor shall be responsible for ensuring the performance of a comprehensive seasonal tune-up on each of the four HVAC units in accordance with the following technical parameters.
Task 1: Structural Casing, Mounting & Duct Connections
Unit Deterioration & Soundness: Inspect the entire exterior casing for deep rust, puncture holes, cracks, structural breaches, or missing fasteners. Check the unit’s physical positioning to ensure the baseline mounting support has not sagged, shifted, or degraded over time.
Skid Frame & Supports: Examine the full tube skid frame, structural welds, and integrated lifting bars to ensure they are physically sound and load-bearing ready.
Duct Connections & Air Seals: Inspect the hard-mount duct collars/boots attached directly to the unit casing for cracks, separation, or broken rivets. Verify that the supply and return connection interfaces are structurally rigid and sealed to the unit casing to prevent thermal loss.
Task 2: Filters, Coils & Drainage System
Filter Cleaning & Replacement: Carefully remove existing air filters to prevent trapped particulate matter from shaking loose into the clean side of the plenum. Vacuum and sanitize the internal surfaces of the filter housing frame before installing a brand-new, correctly oriented 16" x 25" x 1" high-efficiency air filter.
Condenser Coils: Check condenser coils for physical damage, flattened fins, or oily residue indicating a possible refrigerant leak. Clean both evaporator and condenser coils using professional-grade, non-acidic foaming cleaners to flush out dust, mud, and outdoor debris.
Condensate Drain Cleaning: Inspect the internal condensate pan for standing sludge, rust scale, or biologic growth. Flush the lines and P-trap configuration using an approved clearing agent and clear water to ensure complete, unhindered gravity drainage.
Task 3: Motors, Drive System & Electrical
Motors & Drive Components: Manually spin the condenser fan motor shaft to check for internal bearing drag or wiggle. Check the direct-drive evaporator blower wheel alignment, mounting set screws, and general cleanliness. Run both motors to identify unbalanced fan blades, excessive housing vibration, or abnormal electrical hums.
Electrical System Tightness: Physically torque all screw and terminal block wire connections inside the control box to specification.
Wiring & Component Inspection: Examine all wiring runs for signs of overheating, scorched insulation, brittle jackets, friction chafing, or rodent chewing to evaluate eligibility for possible replacement. Inspect contactors, relays, and starters for pitted or burnt contact points. Test microfarad ratings for run capacitors.
Task 4: Safety Controls Validation
Pressure & Thermal Switches: Verify electrical continuity and operational integrity of the refrigerant high-pressure and low-pressure safety cutouts. Inspect and verify the high-limit thermal safety cutouts on the integrated 11.52 kW electric heat strip.
Thermostat Interconnect: Fully uncoil, inspect, and test the 50-foot remote electronic thermostat and control umbilical line to verify error-free communication with the controller.
Task 5: Deficiencies and Unscheduled Repairs
If deficiencies are identified during maintenance, the Contractor shall provide a written estimate detailing necessary parts and additional labor hours required for repair.
No repair work outside the basic maintenance scope shall begin without written authorization from the Contracting Officer.
All replacement parts must meet or exceed original Western Shelter OEM specifications.
4. Facility Access & Safety Requirements
Contractor Roster: The Contractor must provide the full names of all technicians assigned to the project to the McClellan Site Manager at least 48 hours prior to seeking site access.
Identification: All Contractor personnel must present a valid government-issued photo ID immediately upon arrival at the facility.
Personal Protective Equipment: Technicians must wear appropriate safety gear and closed-toe shoes at all times while on site. Non-compliant personnel will be denied entry.
5. Deliverables & Reporting
The Contractor shall submit a field service report for each unit, indexed by serial number and location, within five (5) business days of completion. Each report must explicitly include:
• Unit serial number and service location.
• Pre-service and post-service electrical draw, including compressor and fan amperages.
• Refrigerant pressure logs and ambient temperature profiles.
• Completed and signed technical checklist items.
• Identified deficiencies, recommended corrective actions, and associated repair estimates, if applicable.
6. Period of Performance
All single-site tune-ups, including reporting and final inspections, shall be completed within a window of ninety (90) business days from the formal contract notice to proceed.
7. Contractor Qualifications
Technicians must hold a valid EPA Section 608 Certification.
The Contractor must have proven experience servicing mobile/expeditionary tactical environmental systems.
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