Panel fit and deployment
The PXF4APY2-FVVA1: The 1/16 DIN (48 x 48mm) cutout is the standard panel-mount footprint for compact controllers. It fits the same hole as every other 1/16 DIN unit, so swapping in a failed controller from another brand is straightforward — just check the pinout on the rear connector. The 50ms sampling speed is fast enough for most thermal loops but not for pressure or flow control; keep it on temperature duty.