ARMSTRONG D500567 Air Handler 500 CFM - D500567
The ARMSTRONG D500567 is an air handler with a capacity of five hundred cubic feet per minute (CFM). It is designed for efficient air movement in HVAC systems. This unit is essential for maintaining comfort in residential and commercial spaces. It can be used in both new installations and as a replacement in existing systems.
This air handler provides reliable airflow to enhance heating and cooling efficiency.
- Efficient air movement
- Compatible with various HVAC systems
- Designed for both new and replacement applications
Specifications
| Model Number |
D500567 |
| Brand |
ARMSTRONG |
| Application |
HVAC |
| Dimensions |
Standard |
| Installation |
Indoor |
| Weight |
Standard |
| Material |
Metal |
What our Experts Think
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Clarification: The D500567 is often mislabeled as an “Air Handler 500 CFM,” but it is actually a float & thermostatic steam trap, not a blower or air handler.
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Reliable steam control: Designed for steam systems with a 1/2″ NPT in-line configuration and up to 75 PSIG operating pressure.
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Efficient condensate removal: Float mechanism handles high condensate loads, while the thermostatic element vents air automatically for stable steam flow.
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Durable construction: Cast-iron body with phosphor-bronze bellows ensures long service life even under frequent cycling.
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Strong capacity: Supports up to ~1,850 lb/hr flow, suitable for commercial and industrial steam systems.
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Maintenance-friendly: Repair kits and components are readily available, minimizing long-term maintenance costs.
Q&A
Q: What is the Armstrong D500567?
A: A float-and-thermostatic steam trap, not an air handler.
Q: What is its function?
A: Removes condensate from steam systems while venting air to maintain efficiency and prevent water hammer.
Q: What are the connection details?
A: ½″ NPT screwed inlet and outlet.
Q: What is the pressure rating?
A: Maximum operating pressure is 75 PSIG.
Q: What is its condensate capacity?
A: Can handle up to approximately 1,850 lb/hr of condensate.
Q: Can this part be used for HVAC airflow?
A: No, it is specifically designed for steam systems, not HVAC air handling.
Maintenance Tips
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Replace or clean the return air filter every 1–3 months to maintain airflow and efficiency.
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Inspect and clean evaporator coils and blower annually to ensure optimal heat exchange.
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Check and clear the condensate drain pan and line; ensure the drain trap works to prevent overflow.
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Verify blower speed and airflow settings; adjust motor taps to match load for efficient operation.
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Inspect all electrical connections; tighten or repair any loose or corroded wiring.
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Schedule professional maintenance twice a year to service fan, coils, refrigerant, blower, and safety controls.
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Keep a maintenance log of filter changes, inspections, and service visits.
