3 Ton EcoTemp 14.5 SEER2 R454B Heat Pump Wall Mount Apartment/Condo Type System W5H5S36AKAAA, FMA5L3600AL
The W5H5S36AKAAA heat pump and FMA5L3600AL wall-hung fan coil are the highest-capacity PSC pairing in the EcoTemp multifamily heat pump lineup. They provide 36,000 BTU of nominal heating and cooling at an AHRI-certified 14.5 SEER2 (AHRI #214424282). This system is built for the biggest units in a building, such as three-bedroom condos, penthouse-level apartments and large townhome-style rentals, while keeping a closet-mounted fan coil instead of a full furnace or attic air handler. It runs on R-454B and is aimed at owners, HOAs and contractors who want maximum capacity with a familiar, cost-conscious PSC blower.
Is a 3 Ton Heat Pump System the Right Size?
A 3 ton system is designed for heating and cooling loads near 36,000 BTU per hour. That is the upper limit of what this wall-hung fan coil family can serve, so it is best saved for units that need it. Typical examples are large floor plans, units with several exterior walls, or spaces with heavy sun gain from big windows and sliding doors.
If your load estimate falls between sizes, think about how the unit is used. Units that sit empty much of the day, or that have well-insulated walls and modern windows, may do better with 2.5 tons. Run your numbers through the BTU sizing calculator or contact our team before ordering.
Ideal for: Three-bedroom condos, large two-bedroom apartments with high exposure, penthouse and top-floor units, and replacement of 3 ton wall-hung fan coil systems.
Need more capacity? The FMA5 wall-hung line tops out at 3 tons. For larger loads, consider the 3.5 Ton EcoTemp 14.5 SEER2 R454B Heat Pump System W5H5S42AKAAA, WCHL425AC, which uses a multi-position air handler instead of a wall-hung fan coil.
Recommended system sizes are general guidelines only. Actual requirements depend on climate, insulation, unit location within the building, window exposure, occupancy, and installation conditions. Request free sizing assistance, contact Budget Heating, or call 813-885-7999.
What's Included
| Outdoor Heat Pump | W5H5S36AKAAA — 3 Ton Single-Stage R-454B Heat Pump |
|---|---|
| Indoor Fan Coil | FMA5L3600AL Wall-Hung Multifamily Fan Coil (PSC Motor) |
| Application | Apartment / Condo Split System Heat Pump, Heating & Cooling |
| Refrigerant | R-454B (Low-GWP A2L) |
| Compressor | Single-Stage Scroll Compressor |
| Efficiency | 14.5 SEER2, AHRI Certified #214424282 |
| Electrical | 208/230V, Single Phase, 60 Hz Heat Pump (19.2 MCA / 30 Amp Max Fuse or Breaker) |
| Fan Coil Electrical | 208/230V, Single Phase, 60 Hz |
The W5H5S36AKAAA is the first unit in its family with a two-row outdoor coil. It is paired with a 1/4 HP fan moving 3,500 CFM and holds a 7.6 lb factory R-454B charge for 15 ft. of line set. The FMA5L3600AL shares the 39-1/2" x 22" x 19" cabinet with the 2.5 ton model. Its 1/3 HP PSC blower delivers 1,150 CFM nominal, the highest PSC airflow in the series. The outdoor unit and fan coil are also available individually as the W5H5S36AKAAA heat pump condenser and the FMA5L3600AL PSC wall-mount fan coil. That is useful when only one component in an existing system has failed.
Heat Pump & Fan Coil Features
W5H5S36AKAAA Outdoor Heat Pump
- Two-row, 17.2 sq. ft. outdoor coil for 3 ton heat transfer
- 1/4 HP direct-drive fan moving 3,500 CFM vertically
- Single-stage scroll compressor on R-454B refrigerant
- 3/4" vapor and 3/8" liquid connections
- Low ambient cooling down to 0°F with approved kits
- Loss of charge switch, internal overload and pressure relief protection
- Suction line accumulator for compressor protection during heating
- Long line applications up to 250 ft. total equivalent length
- Optional snow stand and support foot accessories
- Sheet metal cabinet with a dense wire coil guard
FMA5L3600AL Wall-Hung Fan Coil
- 1/3 HP 3-speed PSC blower, 1,150 CFM nominal, the highest in the FMA5L series
- 39-1/2" H x 22" W x 19" D wall-hung cabinet
- Standard TXV and all-aluminum coil construction
- Refrigerant leak detection system for R-454B
- Accepts 5, 7.5 or 10 kW circuit-breaker-protected electric heat
- Field-installed 20" x 20" x 1" filter
- Designed for non-ducted return in qualifying single-level applications
- Fresh air intake knockouts in the cabinet
- Insulated, galvanized cabinet rated for conditioned spaces
- Front service access and bottom-exit 3/4" FPT drains
Specifications & Manuals
Documentation for this 3 ton package includes heat pump and fan coil specifications, installation and wiring instructions, a service manual, warranty details, and product literature for selection, installation, and ongoing maintenance.
Frequently Asked Questions
Is 3 tons the largest size available in this wall-hung heat pump line?
Yes. The FMA5L and FMA5X wall-hung fan coils come in 1.5 to 3 tons, so the W5H5S36AKAAA / FMA5L3600AL is the top capacity for this style of install. Larger loads need a different air handler style.
How does the 3 ton W5H5S36AKAAA system compare with the 2.5 ton version?
Both fan coils share the 22" cabinet. The 3 ton package steps up to a two-row outdoor coil and a 1/4 HP outdoor fan, and it carries a higher 14.5 SEER2 rating versus 14.3 SEER2 for the 2.5 ton W5H5S30AKAAA system. It needs a 30 amp maximum breaker instead of 25 amps.
Will the FMA5L3600AL fit inside a standard wall closet?
The FMA5L3600AL is designed to fit between standard stud spacing and hangs on included wall brackets. The cabinet is 39-1/2" H x 22" W x 19" D, and it requires zero clearance on all sides. Confirm the closet opening and depth before ordering.
Can I add heat to the FMA5L3600AL after installation?
Yes. Field-installed electric heat kits in 5, 7.5 and 10 kW slide into the fan coil and include circuit-breaker protection. You can add one at purchase from the options on this page, or install it later as a retrofit.
Does the W5H5S36AKAAA heat pump keep cooling in cold weather?
With approved low ambient accessory kits, the W5H5S36AKAAA can provide cooling down to 0°F outdoors. That matters for units with high internal heat loads, such as server closets or commercial kitchens in mixed-use buildings.
Who usually buys the 3 ton FMA5L wall-hung heat pump package?
Condo associations replacing systems in their largest units, apartment owners upgrading penthouse or end units, and HVAC contractors who need a ready-matched, AHRI-certified 3 ton system that drops into an existing fan coil closet.
W5H5S Technical SpecificationsW5H5S Installation InstructionsW5H5S Customer BrochureFMA5L Technical SpecificationsFMA5L Installation InstructionsFMA5L Warranty CertificateFMA5L Wiring DiagramFMA5L Service Manual
