2 Ton GrandAire 18.3 SEER2 R454B Side Discharge Inverter Heat Pump System, W5H9V24AKAAA, WCVL245CB
This AHRI-matched GrandAire split system (AHRI 218160676) pairs the 2 ton W5H9V24AKAAA side discharge inverter heat pump with the WCVL245CB variable speed air handler. It's the most efficient size in the lineup at 18.3 SEER2, 11.7 EER2, and 10.0 HSPF2. Inverter-driven capacity runs from 7,200 to 27,000 BTU/h in cooling, with heating down to -22°F, so small homes, condos, and apartments get quiet, steady comfort on R-454B refrigerant. For full system performance, we recommend the GrandAire WKJR120NX6W Smart Wi-Fi Communicating Wired Thermostat, available as an option on this page. It talks back and forth with both units and adds Wi-Fi control. A standard third-party 24V thermostat will also run the system, but you lose those communicating features. Browse more complete split systems.
Is a 2 Ton Heat Pump System the Right Size?
A 2 ton matched system fits smaller living spaces with a modest load: condos, townhomes, apartments, cottages, additions, and efficient small homes. The inverter compressor slows to about 7,200 BTU/h on mild days, so instead of short-cycling it runs long, gentle cycles that even out temperatures and pull more moisture from the air.
Size the system from a load calculation, not square footage alone. Insulation, windows, sun exposure, duct location, climate zone, and occupancy all change the load. Because the outdoor unit heats down to -22°F, many owners in mild and mixed climates need little backup heat. In colder regions, add a heat strip for supplemental and emergency heat.
Ideal for: Condos, apartments, townhomes, small single-family homes, and additions, especially multi-family or tight-lot properties where a slim side discharge outdoor unit is a must.
Recommended control: The GrandAire WKJR120NX6W Smart Wi-Fi Communicating Wired Thermostat gives you full two-way communication and Wi-Fi control. Other 24V thermostats will work, but communication features are lost.
Need more capacity? Step up to the 3 Ton GrandAire 17.4 SEER2 Inverter Heat Pump System, W5H9V36AKAAA, WCVL365CC for mid-size homes with a larger load.
Recommended applications are general guidelines only. Actual system requirements depend on insulation, climate, duct design, window area, and occupancy. Request free sizing assistance, contact Budget Heating, or call 813-885-7999.
What's Included
| Outdoor Heat Pump | W5H9V24AKAAA — 2 Ton Side Discharge Inverter Heat Pump |
|---|---|
| Indoor Air Handler | WCVL245CB — 2 Ton Variable Speed Multi-Position Air Handler |
| AHRI Reference | 218160676 |
| Efficiency | 18.3 SEER2 / 11.7 EER2 / 10.0 HSPF2 |
| Refrigerant | R-454B |
| Compressor | Inverter Rotary Compressor |
| Recommended Thermostat | GrandAire WKJR120NX6W Smart Wi-Fi Communicating Wired Thermostat (optional add-on) |
| Electrical | Outdoor 208/230V 1 Ph (MCA 19, MOP 20); Indoor 115/208/230V 1 Ph (MOP 15) |
| Optional Add-Ons | 5kW, 10kW, or 15kW breakered heat strip; 25' or 50' 3/4" x 3/8" line set; flush kit |
You receive one W5H9V24AKAAA outdoor heat pump and one WCVL245CB indoor air handler, Grandaire's matched pair for this 2 ton rating. Both units use electronic expansion valves, and the adaptive control system coordinates compressor speed, refrigerant flow, and blower airflow. The heat strip, copper line set, flush kit, and WKJR120NX6W thermostat can be added with the options above.
Heat Pump & Air Handler Features
W5H9V24AKAAA Outdoor Heat Pump
- Highest-efficiency size in the series at 18.3 SEER2
- Inverter rotary compressor, 7,200–27,000 BTU/h cooling
- Heating range of 7,100–30,000 BTU/h
- Low-profile side discharge cabinet, 35.04" W x 26.50" H
- 60 dBA outdoor sound level
- Operates from -22°F to 122°F
- Crankcase heater and chassis heater standard
- Up to 164 ft of line set and 82 ft of elevation
WCVL245CB Indoor Air Handler
- Narrow 17.5" multi-position cabinet
- Constant-airflow ECM 2.0 blower, 630–824 CFM
- Electronic expansion valve and all-aluminum coil
- Indoor sound as low as 28 dBA
- Two-way communication with the WKJR120NX6W controller
- Accepts 5kW, 10kW, or 15kW GrandAire heat strips
- 115V or 208/230V blower power
- Filter rack for a 16x20x1 filter
Specifications & Manuals
Documentation includes the matched 2 ton system submittal, parts lists for both units, and installation and service manuals for the W5H9V heat pump and WCVL air handler, including communicating and 24V thermostat wiring.
Frequently Asked Questions
Which thermostat should I use with this 2 ton GrandAire system?
We recommend the GrandAire WKJR120NX6W Smart Wi-Fi Communicating Wired Thermostat, available as an option on this page. A third-party 24V thermostat will also work, but the system loses its communicating features.
What comes with the 2 ton GrandAire system?
The system includes the W5H9V24AKAAA outdoor heat pump and the WCVL245CB indoor air handler. Heat strips, line sets, a flush kit, and the WKJR120NX6W thermostat are optional add-ons.
Does this system include a copper line set?
Not by default. You can add a 25' or 50' 3/4" x 3/8" copper line set, which matches the system's 3/4" gas and 3/8" liquid flare connections.
Is this system a good fit for a condo with limited outdoor space?
Yes. The outdoor unit is only 26.5" tall and 13.46" deep with side discharge airflow, so it fits balconies, narrow side yards, and tight multi-family spaces, while the 17.5" air handler fits small closets.
Can the 2 ton system keep a home warm in a northern climate?
The outdoor unit continues heating down to -22°F. For colder regions, adding a 5kW, 10kW, or 15kW GrandAire heat strip provides supplemental and emergency heat.
Where can I verify the AHRI rating for this matchup?
This W5H9V24AKAAA and WCVL245CB combination is listed under AHRI reference number 218160676. You can confirm it in the AHRI directory for rebate or code paperwork.
W5H9V24AKAAA, WCVL245CB Submittal SheetGrandAire W5H9V24 Parts ListGrandAire W5H9V Installation InstructionsGrandAire W5H9V Service ManualGrandAire WCVL Installation InstructionsGrandAire WCVL Service ManualGrandAire WCV1245CB Parts List
