Indefinite Temperature Hold

The Hold key allows you to hold a tempera- ture indefinitely. When Hold is active, Hld displays continuously.

1.Press Hold.

2.Press ▲ or ▼ key to set indefinite temperature setting.

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3.To cancel, press Hold and wait five seconds.

System and Fan

Use the SYSTEM and FAN switches to change the settings.

System Setting

To select the desired system setting, slide the SYSTEM switch in the lower right corner of the thermostat.

HoldSelect

PM

FAN

SYSTEM

Auto On

Cool Off Heat Em. Ht.

SYSTEM SWITCH

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Pub. No. 22-5185-01

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Trane TAYSTAT 540 manual Indefinite Temperature Hold, System and Fan, System Setting