Operation Manual

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T600MSx-3 Multi-Stage Thermostat Installation Instructions4

Setup and Adjustments

Thermostat Operation Overview

Thermostat User Interface Keys

The T600MSx-3 thermostat user interface consists of

five keys on the front cover (as illustrated in Figure 7).

The function of each key is as follows:

•Use the YES/SCROLL key to:

- confirm menu selections and to advance to the

next menu item

- stop the Status Display Menu from scrolling

and to manually scroll to the next parameter on

the menu

Note: When the thermostat is left unattended for

45 seconds, the thermostat display resumes scrolling.

•Use the NO key to decline a parameter change and

to advance to the next menu item.

•Use the MENU key to:

- access the Main User Menu or exit the menu

- access the Installer Configuration Menu or to

exit the menu (See the Configuring the

T600MSx-3 Thermostat Thermostat section.)

•Use the UP/DOWN arrow keys to change the

configuration parameters and to activate a setpoint

adjustment.

Backlit Liquid Crystal Display (LCD)

The T600MSx-3 thermostat includes a 2-line,

8-character backlit display. Low-level backlighting is

present during normal operation, and it brightens when

any user interface key is pressed. The backlight returns

to low level when the thermostat is left unattended for

45 seconds.

Light-Emitting Diodes (LEDs)

Three LEDs are included to indicate the fan status, call

for heat, or call for cooling:

•The FAN LED is on when the fan is on.

•The HEAT LED is on when heating is on.

•The COOL LED is on when cooling is on.

Programming Overview

There are three menus used to view, program, and

configure the T600MSx-3 thermostat:

The Status Display Menu is displayed during normal

thermostat operation. This menu continuously scrolls

through the following parameters:

• Room Temperature

• Day and Time (T600MSP-3)

• System Mode

• Occupancy Status – Occupied/Unoccupied/

Override (T600MSP-3)

Figure 7: Front Cover of Thermostat

70.0ºF

Room Temp

ES NO

Backlit, plain text

LCD is easy to read

in any condition.

Five keys on the thermostat

make operation easy and intuitive.

LEDs indicate

system activity.