The electrical specifications and physical mounting footprint match the legacy Honeywell units
Built to withstand high-duty cycles
Suction line driers require different flow characteristics and core compositions to handle oil return and lower pressure drops
If your service manual calls for either number
the 311616 (functionally identical to the 311616/U universal part) delivers the exact tension needed to match the original factory calibration of your Honeywell pneumatic controls
Johnson Controls A19ABA-23 Utility Thermostat Els PW 17895 The electrical specifications and physicalJohnson Controls A19ABA 23 Utility Thermostat, 120 208 240 Vac, 40 90 Degree Temperature Range, 3' Capillary Length, Open Low, 3 8" x 6" Bulb, Automatic Reset, Screw Driver Range Adjuster A19ABA 23 is identical to A19ABA 23C