Armstrong Air BCE7S42MA4X-50 Air Handling Unit 3.5 Ton Vertical/Horizontal Replacement MPN - BCE7S42MA4X-50
The Armstrong Air BCE7S42MA4X-50 is a three and a half ton vertical or horizontal variable speed air handling unit. Its compact design features a width of twenty-one and one-quarter inches, height of fifty-eight and one-half inches, and depth of twenty-four and five-eighths inches. Weighing one hundred eighty-nine pounds, this unit is suitable for various residential HVAC applications. It operates efficiently with a BTUH rating of forty-two thousand, accommodating power needs of two hundred eight to two hundred thirty volts.
Designed for residential use, the Armstrong Air BCE7S42MA4X-50 unit integrates seamlessly into HVAC systems, offering reliable cooling and comfort.
- 3.5 ton capacity for versatile cooling solutions
- Variable speed operation enhances energy efficiency
- Compact design fits in limited spaces
Specifications
| Model Number |
BCE7S42MA4X-50 |
| Tons |
3.5 |
| BTUH |
42,000 |
| Volts |
208–230/1/60 |
| Weight |
189 lbs |
| Width |
21.25 inches |
| Height |
58.5 inches |
| Depth |
24.625 inches |
What our Experts Think
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High-efficiency design: The BCE7S42MA4X‑50 is a 3.5‑ton, variable-speed, multi-position air handler suitable for both vertical (upflow/downflow) and horizontal installations.
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Quiet, smooth airflow: Communicating ECM blower motor modulates speed for improved comfort, reduced noise, and better humidity control.
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Flexible installation: Compact cabinet fits tight spaces without compromising performance.
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Optimized cooling: Factory-installed R‑410A TXV (thermostatic expansion valve) ensures efficient refrigerant control.
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Air quality features: Galvanized-steel construction, filter rack, and antimicrobial-treated drain pan help maintain clean indoor air.
Q&A
Q: What is the Armstrong BCE7S42MA4X‑50?
A: A 3.5-ton multi-position (vertical/horizontal) variable-speed air handler from Armstrong’s Pro Series.
Q: What are its electrical specifications?
A: 208–230 V, single-phase, 60 Hz.
Q: What type of motor does it use?
A: Variable-speed ECM (communicating) blower motor for efficient airflow and better humidity control.
Q: What is its cooling capacity?
A: Approximately 42,000 BTU/hr (nominal 3.5 ton).
Q: What refrigerant line sizes does it support?
A: Suction line: 7/8″; Liquid line: 3/8″.
Q: What filter size does it require?
A: 20 × 24 × 1 in.
Q: What are the unit’s physical dimensions?
A: Approximately 21.25″ W × 24.625″ D × 58.5″ H.
Q: Is it compatible with specific thermostats or systems?
A: Yes, compatible with communicating systems for advanced control.
Q: What installation orientations are supported?
A: Multi-position installation: upflow or horizontal (field-configurable).
Q: What durability and indoor-air-quality features does it have?
A: Anti-microbial drain pan and galvanized-steel cabinet for cleaner condensate handling and long life.
Maintenance Tips
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Replace or clean the air filter every 1–3 months to maintain airflow and protect components.
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Inspect and clean the evaporator coil annually to prevent dust buildup and efficiency loss.
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Clear and flush the condensate drain pan and line regularly to avoid blockages and water overflow.
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Check and tighten all electrical connections to prevent failures or arcing.
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Verify fan motor operation, listening for unusual noise, and ensure variable speed settings function correctly.
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Inspect cabinet panels to ensure a tight seal and no air leaks.
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Schedule professional maintenance in spring and fall to service the coil, blower, motor, and refrigerant charge.
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Keep a maintenance log of filter changes, inspections, and service visits to track performance and preserve warranty coverage.
