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Coil failure is often caused by incorrect voltage
How do I troubleshoot a suspected sensor failure in the Series 94 system
Built for broad compatibility
effectively reducing stock requirements for service trucks
Maxitrol TD121B Temperature Selector Els PW 29614 Coil failure is often causedThe Maxitrol TD121B Temperature Selector is a critical component for Selectra Series 21 and 31 electronic gas flame modulation systems. Specifically engineered for indirect fired make up air units, this remote selector provides precise setpoint control within a 120 170F temperature range. For a stable discharge air temperature, it must be paired with a TS121B sensor to ensure the resistance curves match the A1010 or A1011 amplifier logic. This
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