"acceptedAnswer": {
"@type": "Answer",
"text": "The AOVH-15 offers a larger core and higher airflow than the AOVH-10, resulting in stronger heat rejection and improved thermal stability. It is better suited for systems that run more continuously or experience higher thermal loads."
}
},
{
"@type": "Question",
"name": "Should I upgrade to the AOVHR-15-2 two-pass version?",
"acceptedAnswer": {
"@type": "Answer",
"text": "The AOVHR-15-2 is a good choice when enhanced cooling or added protection from cold-start backpressure is needed. The two-pass design increases heat transfer efficiency, and the built-in relief bypass valve helps protect the hydraulic system. It typically supports around 4–60 GPM."
}
},
{
"@type": "Question",
"name": "What electrical requirements and noise levels should I expect from the AOVH-15?",
"acceptedAnswer": {
"@type": "Answer",
"text": "The AOVH-15 uses a TEFC fan motor of approximately 1/2 HP, usually rated for 115/208–230 V, single-phase, 60 Hz. It runs near 3450 RPM with a sound level around 91 dB(A). Always verify the motor nameplate and ensure proper wiring, ventilation, and overload protection."
}
},
{
"@type": "Question",
"name": "How should the AOVH-15 be mounted, piped, and maintained for optimal performance?",
"acceptedAnswer": {
"@type": "Answer",
"text": "Mount horizontally with clear airflow and adequate service access, pipe from lower inlet to upper outlet, and ideally place the cooler in the return line. Use flexible hoses to reduce vibration, keep the fins and motor area clean, and ensure proper oil filtration to avoid fouling the tubes. Follow motor maintenance guidelines for long-term reliability."
}
}
]
}