4 Ton EcoTemp 15.2 SEER2 R454B Central System W5A5S48AKAWA, WCHL485AC
This EcoTemp system pairs the W5A5S48AKAWA single-stage condenser with the WCHL485AC multipoise ECM air handler, AHRI certified at 15.2 SEER2 (#214879692). It runs on R-454B, a low-GWP A2L refrigerant, and the air handler has a refrigerant leak detection and dissipation system and a factory-installed TXV. It's cooling only, with electric heat kits from 5 kW up to 30 kW available.
Is a 4 Ton Air Conditioning System the Right Size?
A 4 ton system is often used in 4-bedroom homes around 2,100–2,500 sq. ft. as a rough guide.
Duct design matters a lot at 4 tons. Pair a Manual J load calculation with a Manual D duct review before you buy.
Ideal for: 4-bedroom homes, larger open floor plans and two-story homes with good duct design.
Need more capacity? Step up to the 5 Ton EcoTemp 15.5 SEER2 R454B Central System W5A5S60AKAWA, WCHL605BD for the largest loads.
Recommended home sizes are general guidelines only. Actual system requirements depend on insulation, climate, windows, ductwork, occupancy and a proper load calculation. Request free sizing assistance, contact Budget Heating, or call 813-885-7999.
What's Included
| Outdoor Condensing Unit | W5A5S48AKAWA — 4 Ton EcoTemp R-454B Air Conditioner |
|---|---|
| Indoor Air Handler | WCHL485AC Multipoise ECM Air Handler (21-1/8" Wide) |
| Application | Cooling-Only Central Air Split System (Electric Heat Kit Optional) |
| Refrigerant | R-454B (Low-GWP A2L Refrigerant) |
| Compressor | Single-Stage Scroll Compressor |
| Metering Device | Factory-Installed R-454B TXV at Indoor Coil |
| Electrical | 208/230V, Single Phase, 60 Hz Condensing Unit — 29.1 MCA / 50A Max Fuse or Breaker |
| Air Handler Electrical | 208/230V, Single Phase — 7.6 MCA / 15A Max Overcurrent (Without Electric Heat) |
The W5A5S48AKAWA condenser is 31-11/16" tall on a 31-3/16" square base and ships at 198 lbs. The WCHL485AC air handler is 53-7/16" tall, 21-1/8" wide and 22-1/16" deep and ships at 182 lbs. Complete the install with compatible thermostats and copper line sets and fittings.
Condensing Unit & Air Handler Features
W5A5S48AKAWA Outdoor Condensing Unit
- 48,000 BTU/h nominal cooling capacity
- Single-stage scroll compressor (22.4 RLA, 126.0 LRA)
- 75 dBA sound power rating
- 1/5 HP direct drive condenser fan, vertical discharge
- 3/8" liquid and 7/8" vapor service valve connections
- Factory charged with 5.7 lb R-454B for 15 ft of line set
- Long-line capable up to 250 ft total equivalent length
- Low ambient cooling down to 0°F with accessory kit
- Internal pressure relief valve, internal thermal overload and filter drier
- 5-year parts limited warranty, 10 years with registration within 90 days
WCHL485AC Multipoise ECM Air Handler
- Multipoise cabinet: upflow or horizontal left, downflow with kit
- Refrigerant leak detection and dissipation system
- 3/4 HP multi-tap ECM blower motor with five speed taps
- 1,400 CFM nominal airflow
- Factory-installed R-454B TXV
- Grooved tube, louvered fin aluminum A-coil
- 3/4" FPT condensate connection
- R-4.2 insulation with vapor barrier, prepainted steel cabinet
- Filter rack fits a 20" x 20" filter
- Field-installed electric heat kits, 5 kW up to 30 kW
Specifications & Manuals
Documentation includes the W5A5S single-stage R-454B condenser product specifications and the WCHL ECM fan coil product data, including dimensions, electrical data, airflow tables and heater kits.
Frequently Asked Questions
Why is the WCHL485AC taller than the 3.5 ton air handler?
The WCHL485AC is 53-7/16" tall versus 49-5/8" for the WCHL425AC, with the same 21-1/8" width. The taller cabinet holds a larger 5.93 sq. ft. coil and a 3/4 HP ECM motor rated for 1,400 CFM nominal.
Can the WCHL485AC use a 24 or 30 kW heat kit?
Yes. The EHC25BHCF (24 kW) and EHC30BHCF (30 kW) fit the 48 and 60 sizes. They ship as 3 phase and are field convertible to single phase, and need 1" clearance to combustibles at the plenum.
Why is the 4 ton condenser shorter than the 3.5 ton?
EcoTemp lists the W5A5S48AKAWA at 31-11/16" tall versus 38-7/16" for the 3.5 ton, on the same 31-3/16" square base. It ships at 198 lbs.
Is there a 4 ton EcoTemp heat pump system?
Yes. The 4 Ton EcoTemp 15 SEER2 R454B Heat Pump System W5H5S48AKAAA, WCHL485AC uses the same air handler and adds heating from the outdoor unit.
Is there an airflow limit on the 4 ton air handler?
Yes. EcoTemp warns that airflow above 400 CFM per ton on the 48 and 60 sizes can blow condensate off the coil, and return static should stay under 0.40 in. wc.
What circuit does the W5A5S48AKAWA need?
The spec sheet lists 29.1 minimum circuit amps and a 50 amp maximum time-delay fuse or breaker at 208/230V single phase.
W5A5S Technical Specifications
