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kW electric heat input for units with R-454B.
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Voltage: Often designed for 208/230 V single-phase in North American specs. For example, in one spec sheet: “Electric Heat 5 kW … 208/230 V – 1-60”.
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Usage: Field-installed accessory kit; must match the packaged unit’s design and electrical wiring.
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Controls/Safety Features: Includes high-limit temperature switches, appropriate fuse/breaker sizing, sequencing contactors for multiple stages if applicable. Example from the ZCD series: for 5 kW heat “Electric Heat Voltage 208/240 V …” and includes minimum circuit ampacity (MCA) and max overcurrent protection (MOCP) data.
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Compatibility: Specifically called out in R-454B equipment spec sheets. For example, one rooftop package spec sheet for R-454B indicates “Electric heat kit available as field-installed option
