2__Attachment_1_-_General_Requirement___Specification.pdf

General Requirement & Specification

Specification – 37MHRAQ12AA3 Comfort Series Single Zone Mini Split Heat

Pump w/R454B Refrigerant Heat Pump (Meet or Exceed)

1. General Requirements The contractor shall furnish all labor, materials, equipment, supervision, and incidentals necessary to provide and install factory-new ductless mini-split heat pump systems in accordance with this specification. All equipment shall be new, unused, and of current production.

All work and materials shall comply with applicable federal, state, and local codes, including but not limited to:

• U.S. Department of Energy (DOE) efficiency standards

• Environmental Protection Agency (EPA) refrigerant regulations

• National Electrical Code (NEC)

• Manufacturer installation requirements

Equipment provided shall meet or exceed the specifications identified herein. No substitutions shall be made without prior written approval from the Government.

2. Equipment Specification (Basis of Design – Meet or Exceed)

Outdoor Unit:

37MHRAQ12AA3 Comfort Series Single-

Zone Ductless Mini-Split Heat Pump

Refrigerant: R454B

Indoor Unit (Air Handler):

Product number 45MHHAQ12XC3

3. Performance Requirements Each ductless heat pump system shall meet or exceed the following minimum performance criteria:

Cooling / Heating Capacity

• Nominal Capacity: 12,000 BTUs

Efficiency Ratings

• Minimum 21.40 SEER2

• Minimum 10.80 EER2

• Minimum 9.20 HSPF2

Warranty

• Minimum 10-Year Manufacturer Parts Warranty

• Minimum 10-Year Compressor Warranty

• Minimum 1-Year Labor Warranty

4. Refrigerant & Environmental Compliance

• Systems shall operate using R454B refrigerant, a non-ozone-depleting refrigerant with reduced global warming potential (GWP).

• All components shall comply with the latest EPA SNAP (Significant New Alternatives

Policy) requirements.

• Systems shall support compliance with future federal refrigerant regulations if applicable.

5. Construction & Durability

• Cabinets shall be constructed of galvanized steel with corrosion-resistant coatings.

• Exterior surfaces shall have powder-coated or baked enamel finishes suitable for harsh environmental conditions.

• Condenser coils shall be copper tube/aluminum fin or microchannel design, protected against physical and environmental damage.

• Units shall include service access panels for compressor, controls, and major components.

6. Controls and Safety Features (Bluetooth Capabilities) Systems shall be equipped with factory-installed safety and control features, including:

• Thermostatic Expansion Valve (TXV) or Electronic Expansion Valve (EEV)

• High- and low-pressure safety switches

• Compressor overload protection

• Standardized wiring terminals

Systems shall be BACnet or Modbus compatible, if required by the Government.

7. Electrical Requirements

• Units shall operate on 208–230V electrical service, model-specific.

• Contractor shall provide all required electrical components, including:

▪ Electrical whip

▪ Disconnects

▪ Required electrical circuits via licensed electrician

• All equipment shall be UL or ETL listed for safety and performance compliance.

8. Installation Materials The contractor shall furnish and install all materials necessary for a complete and functional system, including but not limited to:

• Refrigerant line sets

• Line hide / protective coverings

• PVC condensation drain piping

• Outdoor equipment pads

• Electrical whip and associated wiring

9. Delivery and Documentation

• Equipment shall be delivered FOB destination to the Government-specified facility.

• Contractor shall provide the following documentation upon completion:

• Manufacturer installation manuals

• Electrical wiring diagrams

• Startup and commissioning procedures

• Warranty certificates

• Operations & Maintenance (O&M) manuals

10. Final Condition All systems shall be installed, tested, and left in fully operational condition. The contractor shall demonstrate system operation to the Government or designated tenant representative. Work areas shall be left clean and free of debris.