The Grandaire 3.5 Ton 14.5 SEER2 Heat Pump Air Conditioner Split System with R-454B Refrigerant (W5H5S42AKAAA-WCHL425AC) is a residential split-system heat pump designed to provide both heating and cooling. With a 3.5-ton capacity and 14.5 SEER2 efficiency, this system offers a practical solution for year-round indoor comfort.

The system combines the W5H5S42AKAAA outdoor heat pump condenser with the WCHL425AC indoor coil. It uses R-454B refrigerant and is designed for installation with compatible residential HVAC equipment.

Key Features

• 3.5 Ton Capacity – Designed for residential heating and cooling applications
• 14.5 SEER2 Efficiency – Provides efficient seasonal cooling performance
• R-454B Refrigerant – Uses lower-GWP A2L refrigerant technology
• Heat Pump Operation – Provides both heating and cooling
• Split-System Configuration – Combines an outdoor heat pump with a compatible indoor coil
• Scroll Compressor – Designed for reliable compressor operation
• Compatible Indoor Coil – Includes the WCHL425AC coil for the listed system configuration
• Residential Application – Suitable for compatible home HVAC installations

Product Specifications

• Brand: Grandaire
• Outdoor Model: W5H5S42AKAAA
• Indoor Coil Model: WCHL425AC
• Product Type: Heat Pump Split System
• Nominal Capacity: 3.5 Ton
• Nominal Cooling Capacity: 42,000 BTU
• Efficiency: 14.5 SEER2
• System Type: Heat Pump
• Refrigerant: R-454B
• Compressor Type: Scroll
• Configuration: Split System
• Application: Residential Heating and Cooling

Benefits

• Provides both heating and cooling in one system
• Offers 3.5-ton capacity for residential applications
• Provides 14.5 SEER2 cooling efficiency
• Uses R-454B refrigerant technology
• Combines an outdoor heat pump with a compatible indoor coil
• Provides a complete split-system configuration
• Suitable for replacement or new residential HVAC installations

Compatibility & Installation

The Grandaire W5H5S42AKAAA-WCHL425AC is configured as a split-system combination consisting of the outdoor heat pump condenser and indoor coil. Verify the complete system match and applicable certified ratings before installation.

Installation considerations:

• Verify system sizing for the specific application
• Confirm the outdoor unit and indoor coil are properly matched
• Verify electrical and refrigerant-line requirements
• Follow applicable R-454B/A2L installation and safety requirements
• Confirm proper airflow and ductwork configuration
• Follow manufacturer installation instructions and local codes
• Installation should be completed by a qualified HVAC professional

Frequently Asked Questions

What size is the Grandaire W5H5S42AKAAA-WCHL425AC system?
It is a 3.5-ton split-system heat pump with a nominal 42,000 BTU capacity.

What is the SEER2 rating?
The listed system is rated at 14.5 SEER2.

What refrigerant does this system use?
The system uses R-454B refrigerant.

Does this system provide heating and cooling?
Yes. It is a heat pump split system designed for both heating and cooling.

What indoor coil is included?
The listed system includes the WCHL425AC indoor coil