The Maxitrol A1494 Amplifier is a critical electronic component specifically engineered for Selectra Series 94 gas modulation systems. Designed for professional HVACR applications in direct-fired furnaces, industrial ovens, and make-up air units, this remote amplifier provides precise signal processing to drive modulating valves and maintain stable discharge air temperatures. Its universal design supports all temperature ranges, typically spanning from 40°F to 210°F, by pairing with the appropriate discharge air temperature sensors (such as the TS194) and remote temperature selectors (like the TD94E series). As a veteran technician knows, the A1494 is the "brain" of a Series 94 system, converting input from selection dials into a DC voltage signal that modulates the gas flow through M and MR series valves. This ensures a consistent flame without the stuttering or hunting common in lower-tier equipment. The unit’s compact, rugged housing is built for industrial environments, allowing for easy integration into control panels while protecting its sensitive circuitry. For optimal performance, ensure all control wiring is run in dedicated conduit to prevent electrical interference from high-voltage lines. Key Benefits: Compatible with Maxitrol Series 94 systems across all standard temperature ranges. Provides precise signal amplification for M411, M511, M611, and MR212 modulating valves. Supports remote temperature selection for complex industrial automation and paint booth applications. Ensures superior fuel efficiency by facilitating instantaneous response to temperature fluctuations. Durable construction designed specifically for direct-fired equipment and HVAC process heating. Common Questions: Which sensors are compatible with the A1494? This amplifier is typically paired with TS194 discharge air sensors or TS394 probes. The sensor range must match your remote selector range for accurate calibration. Can I use this with a self-contained system? No, the A1494 is explicitly for remote systems where the temperature selector is located separately from the amplifier. What causes an erratic flame when using this amplifier? Inconsistent signals are often caused by running control wires near power or ignition wires. Use shielded cable for runs over 100 feet to maintain signal integrity. Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
