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The 042N4230 serves as the direct 042N4221 replacement
This kit is essential for preventing downtime in systems where maintaining positive shut-off is non-negotiable
the switch resets the circuit to resume normal operation
5 orifice can be used for both N and B temperature ranges
allowing technicians to isolate pressure gauges for calibration or replacement without depressurizing the entire system
Hoffman Controls 906-13AW Wall Stat Els PW 17895 The 042N4230 serves as theThe Hoffman Controls 906 13AW Wall Stat is a low voltage Class II electronic thermostat engineered for precise temperature management in commercial HVAC systems. This miniature wall thermostat features a 10K Ohm thermistor output specifically calibrated for a 65? F to 85? F temperature range, ensuring a responsive 19 second time constant for rapid environmental adjustments. The 906 13AW is designed for seamless integration with Hoffman Controls 744,