I'm setting this unit up for cooling only with 24v wiring and I was unsure about one of the dip switch settings. Should S1-3 be on or off?

For the ACiQ ACIQ-30-AC air handler configured for cooling-only with 24V controls, the S1-3 dip switch should be set to OFF, as this setting is typically used to disable heating-related control logic and ensure the board operates strictly in cooling mode with a conventional thermostat.

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