Emerson UP400 User's Guide download pdf (Page 8)

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Install 2 AA alkaline batteries (not included) into the battery

compartment at the top of the thermostat.

2.6 Snap thermostat to the wallplate

2.5 Install batteries

Do not restore power to the heating and cooling system

until instructed.

Part 3 Quick setup

3.1 Get to know your thermostat

System Switch

Cool - air-conditioning

Off - system turned off

Heat - heating

Aux Heat - (See part

4.7 of manual)

Auto - system will

automatically switch

between heating and

air-conditioning

Fan Switch

On - fan always on

Auto - fan runs only

when heating or

cooling is on

MENU access icon

Note: After a period of inactivity, the thermostat display goes to “sleep” where only the temperature and the

icons are visible. To “wake up” the display, press the icon.

Time & Date –

Displayed only in

Programmable mode

Actual

Temperature

Desired

Temperature

Favorite Temps for

Home/Sleep/Away

Battery level indicator

Up & Down Arrows

1. Press the FAN icon to set it to AUTO.

2. Press the SYSTEM icon until you see COOL (to turn

on cooling), or until you see HEAT (to turn on heating).

3.2 Set fan and system mode

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Emerson UP400 User's Guide Page 8