Johnson Controls A19ABA-4 Utility Thermostat Els PW 17895 multiple relays can be wired

multiple relays can be wired in parallel or series as per the original equipment manufacturer's wiring diagram to achieve staged heating

or sluggish response times caused by wear and tear

which typically use a 7-inch diaphragm or different EPDM materials

but the mounting footprint and lead configurations are specifically optimized for Reznor units

which is critical for preventing premature equipment wear and motor failure

Johnson Controls A19ABA-4 Utility Thermostat Els PW 17895 multiple relays can be wiredThe Johnson Controls A19ABA 4 Utility Thermostat is a rugged, single stage remote bulb temperature control engineered for high accuracy cycling in commercial refrigeration and HVAC systems. Designed with a liquid filled sensing element, this controller maintains precision "repeat" accuracy regardless of barometric pressure or cross ambient temperature fluctuations. The A19ABA 4 features a broad 120 208 240 Vac compatibility and SPST (Single Pole