| Operating temperature range | 32°F to 104°F (0° to 40°C) |
| Non-operating temperature | -4°F to 158°F (-20° to 70°C) |
| Humidity tolerance | 5% to 90% non-condensing |
| Airflow | Front-to-back |
| Maximum BTUs/hour | - PA-820 firewall—153 BTUs/hour
- PA-850 firewall—256 BTUs/hour
|
| Electromagnetic Interference (EMI) | FCC Class A, CE Class A, VCCI Class A |
| Acoustic noise | Tested in bystander position (ISO 7779) - PA-820
firewall
- Average—31.6 dB(A)
- Maximum—54.6 dB(A)
- PA-850 firewall
- Average—38.5 dB(A)
- Maximum—54.8 dB(A)
|
| Maximum operating altitude | 10,000ft (3,048m) |
