User Guide

ViewStat Installation and Wiring

ViewStat Communicating Thermostat

4. Use the down arrow button to lower the set point 3°F below room temperature. In 5 to 10

seconds the first stage of cooling begins, and the COOL message icon begins to flash. If there

is a second stage it will begin in four minutes.

5. Press the Mode button until OFF appears n the Main display. During Check-out, change the

mode to override the Minimum On time delays.

6. Press the Mode button until the HEAT message appears, along with the current heat setting in

the Main display.

7. Use the up arrow button to raise the set point 3°F above room temperature. In 5-10 seconds, the

first stage of heating begins and the HEAT message icon begins to flash. If there is a second

stage it will begin in 4 minutes.

Heat Pump Only: The message HEAT -AUX is displayed when the auxiliary heat terminal

(W1) is energized. The LED on top of the thermostat will illuminate.

8. Press the Mode button until OFF appears in the Main display. During Check-out, change the

mode to override the minimum On time delays.

9. Press the Mode button until EM.HEAT appears on the Main display. Repeat step 7 to verify

Emergency Heat operation.

Optional HVAC Set-Up Features

There are a number of HVAC features that can be configured for the particular application. These

include temperature control options, display options and high/low balance points (heat pumps

only).

 Temperature control options

 Balance points

 Display options

To access these HVAC set-up features

When first powered up, the message display will scroll through the current mode status, fan status,

and heating/cooling output status. This is referred to as Passive Display because you do not interact

with it. To get into the Set-Up Menu, press the Enter and Mode buttons at the same time. This is

referred to as User Interactive Display, as the user navigates through various menu and sub-menu

selections to change variables.

Set-Up is menu driven but only one menu item is visible at a time. FIG. 32 on page 45 shows the

entire Main Menu. Selecting any one of the Main Menu items (by pressing the Enter button) will

enter a corresponding Sub-Menu. The Scroll Up and Scroll Down buttons are used to move

between menu items or change values.

The Enter button is used to select a menu item or enter a value. When in Thermostat Set-Up, if none

of the three navigation buttons are pressed in 5 minutes, the display will return to Passive Display.

For detailed information on accessing and using the various Set-Up menus, refer to the Set Up and

Configuration section on page 45.