3 Ton GrandAire R454B Variable Speed Air Handler, WCVL365CC
The GrandAire WCVL365CC is a 3 ton R-454B variable speed air handler that moves 865 to 1,189 CFM through a constant-airflow ECM 2.0 blower. It keeps airflow on target even as filters load and duct static rises, up to 0.80 in. W.C. Inside the 21-inch multi-position cabinet, an electronic expansion valve meters refrigerant precisely across an all-aluminum coil, matching the modulating output of the GrandAire W5H9V36AKAAA 3 ton inverter heat pump. It's a strong choice for mid-size homes that want quiet, even comfort and a clean path to R-454B.
Is a 3 Ton Air Handler the Right Size?
The WCVL365CC is the indoor match for 3 ton GrandAire W5H9V systems, which commonly serve mid-size single-family homes. With 865 to 1,189 CFM available, it delivers the airflow a 3 ton inverter system needs at both low-speed and full-capacity operation, which helps with dehumidification during long, low-speed cycles.
Make sure the installation location fits the 21.02" W x 21.02" D x 49.02" H cabinet with service clearance. Supply and return ducts also need to be sized for up to about 1,200 CFM. If the home is in a colder climate, pick a heat strip based on how much backup heat you need below the heat pump's balance point.
Ideal for: Mid-size single-family homes and townhomes on a 3 ton GrandAire inverter heat pump, with closet, basement, attic, or crawlspace installs.
Need more capacity? Step up to the 5 Ton GrandAire R454B Variable Speed Air Handler, WCVL605CD, the matched indoor unit for 4 and 5 ton W5H9V heat pumps.
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
| Indoor Air Handler | WCVL365CC — 3 Ton Variable Speed Multi-Position Air Handler |
|---|---|
| Matched Heat Pump | W5H9V36AKAAA 3 Ton Inverter Heat Pump (sold separately) |
| Blower | Constant-Airflow ECM 2.0, 1/2 HP, 865–1,189 CFM |
| Metering Device | Electronic Expansion Valve (EEV) |
| Refrigerant | R-454B |
| Electrical | 115/208/230V, Single Phase, 60 Hz — MOCP 15 |
| Electric Heat | Optional 5kW, 10kW, or 15kW GrandAire WEAH Heat Strip |
| Filter | Filter rack included, 20x20x1 |
| Dimensions / Weight | 21.02" W x 21.02" D x 49.02" H — 129.41 lb |
This listing covers the WCVL365CC indoor air handler only. The W5H9V36AKAAA outdoor heat pump and the optional electric heat strip are sold separately. Refrigerant connections are 3/8" liquid and 3/4" suction flare, with a 3/4" condensate drain.
Air Handler & Matched Heat Pump Features
WCVL365CC Variable Speed Air Handler
- 865–1,189 CFM constant-airflow ECM 2.0 blower
- Holds airflow up to 0.80 in. W.C. external static pressure
- Electronic expansion valve for precise refrigerant control
- All-aluminum coil with 19 fins per inch
- 21" multi-position cabinet
- Indoor sound from 25.5 dBA at low speed
- Runs on 115V or 208/230V power
- Covered by a 10-year parts warranty
W5H9V36AKAAA Matched Heat Pump (sold separately)
- 17.4 SEER2, 11.7 EER2, and 10.3 HSPF2
- Twin-rotary inverter compressor
- 100% heat output at -4°F per Grandaire's submittal
- 11,000–48,000 BTU/h heating range
- Side discharge cabinet for tight outdoor spaces
- 62.5 dBA outdoor sound level
- Up to 246 ft of piping
- Crankcase and chassis heaters standard
Specifications & Manuals
Documentation includes the matched 3 ton submittal, WCVL365CC parts breakdown, WCVL installation instructions, and service manual for wiring, airflow setup, and diagnostics.
Frequently Asked Questions
How much airflow does the WCVL365CC deliver?
Its ECM 2.0 blower moves 865 to 1,189 CFM across its speed settings and maintains constant airflow up to 0.80 in. W.C. of external static pressure.
Does the WCVL365CC use a TXV or an electronic expansion valve?
It uses an electronic expansion valve (EEV), which adjusts refrigerant flow continuously to match the inverter heat pump's changing capacity.
What heat strip size should I choose for a 3 ton WCVL?
The WCVL365CC accepts 5kW, 10kW, or 15kW GrandAire heat strips. A 5kW strip suits mild climates, 10kW is a common middle choice, and 15kW suits colder regions or larger homes.
Will the WCVL365CC fit in my existing closet?
The cabinet measures 21.02" W x 21.02" D x 49.02" H and weighs 129.41 lb. Allow extra room for the plenum, filter access, and service clearance per the installation instructions.
Why does an all-aluminum coil matter?
All-aluminum coils avoid the copper-aluminum joints and copper tubing where formicary (ant-nest) corrosion commonly causes refrigerant leaks in indoor coils.
How much duct static pressure can the WCVL365CC handle?
Grandaire rates the constant-airflow system for up to 0.80 in. W.C. external static pressure. For best efficiency and noise, design ducts well below that limit.
W5H9V36AKAAA, WCVL365CC Submittal SheetGrandAire WCV1365CC Parts ListGrandAire WCVL Installation InstructionsGrandAire WCVL Service Manual
