HVAC Controls T32-VNP User manual

T32-VNP Atlas Vertical
Non-programmable Thermostat
User Manual

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INTRODUCTION
Your new T32-VNP Atlas is a feature-rich thermostat that has been manufactured using the
highest quality components and design currently available. When properly installed and
configured by a professional heating and air conditioning contractor, the T32-VNP Atlas will
provide years of dependable operation.
The T32-VNP Atlas has been designed to be an attractive, highly reliable and easy-to-use
thermostat. By taking time to read and understand this User Manual, you can take
advantage of the many features offered in this premium product.
Although great care has been taken in the preparation of this manual, iO HVAC
Controls takes no responsibility for errors or omissions contained herein. It is the
responsibility of the installer to ensure that this thermostat and the equipment
connected to it operate in a safe and efficient manner.
Due to ongoing product improvements, iO HVAC Controls reserves the right to
change the specifications of the T32-VNP Atlas thermostat or its components without
notice.
All rights reserved.
© iO HVAC Controls, LLC 2022.
Intellectual rights apply.
1

THERMOSTAT DISPLAY
To simplify use, the T32-VNP only displays information relevant to the current mode of
operation. When adjustments are required, the thermostat will display additional information
or functional icons. Based on the thermostat configuration, some information and icons may
not be displayed. The illustration below shows all the LCD segments and icons along with
abbreviated definitions.
Low battery indication
(Change batteries)
Displayed when thermostat
is in Installer Mode
Displays heating and/or cooling
setpoint as well as outdoor
temperature when optional
outdoor remote sensor is used
Displayed when Fresh Air
Ventilation is being used
and flashes when fresh air
damper is open
Displays room
temperature
Displayed when heating
or cooling setpoint
limit is reached
Displayed when thermostat
is in off position
Displays Auto or On fan
Displays heating mode and
staging based on equipment
configuration
Displays cooling
mode and
staging based on
equipment configuration
2

BASIC FUNCTIONS
When in standard operating mode, the thermostat
has four buttons that are used for all basic functions.
MODE CONFIGURATIONS
Your contractor can configure the thermostat with
different mode selections based on your preference
and the type of HVAC equipment.
By pressing the button, you have the following Mode
choices:
MODES FOR CONVENTIONAL HEATING AND
COOLING EQUIPMENT (GAS/ELECTRIC)
Manual Changeover (Heat or Cool and OFF)
Auto Changeover (Heat or Cool, Heat and Cool
or OFF)
Heat Only (Heat or OFF)
Cool Only (Cool or OFF)
Mode Fan
3

BASIC FUNCTIONS
Mode Fan
MODES FOR HEAT PUMP AND DUAL FUEL
EQUIPMENT
Manual Changeover (Heat or Cool, *EHeat or
OFF)
Auto Changeover (Heat or Cool, Heat and
Cool,*Eheat or OFF)
Heat Only (Heat, *Eheat or OFF)
Cool Only (Cool or OFF)
* When the thermostat is placed in the EHeat
(Emergency Heat) mode, only the auxiliary
heat source is used and the heat pump is locked out.
E
4

BASIC FUNCTIONS
Mode Fan
FAN SELECTION
Press the button to select (Automatic) or Fan Auto On
(Continuous) fan mode.
In mode, the fan operates with a heating or Auto
cooling call.
If set to , the fan will run continuously. If the On
thermostat is turned while the fan is set to , OFF On
the fan will continue to run until it is placed in the Auto
mode.
5

BASIC FUNCTIONS
Mode Fan
CHANGING THE HEAT OR COOL SET
TEMPERATURE
Manual Heat/Cool Mode
In manual changeover mode, only the or Heat Cool
temperature setting will be displayed in the upper right
hand corner of the display along with the room
temperature. To change the setting, press either the
UP or DOWN button. The displayed room temperature
will be replaced by the set temperature which then can
be increased or decreased by pressing the UP or
DOWN button. Once the setting is changed, the
thermostat will once again display the room
temperature and set temperature.
The example on the right shows the thermostat in the
Heat mode.
6

BASIC FUNCTIONS
Mode Fan
CHANGING THE HEAT OR COOL SET
TEMPERATURE
Auto Mode
In auto changeover mode, the and Heat Cool
temperature settings alternate on the screen about
every three seconds.
To change the or setting, press the UP or Heat Cool
DOWN button. The displayed room temperature will be
replaced by the current temperature and Heat Set
then the temperature. When the Heat Set or Cool Set
Cool Set temperature is displayed, press the UP or
DOWN arrow to change the setting. Once the change
has been made the thermostat will revert back to
displaying the room temperature and and Heat Cool
temperature settings will again alternate on the
screen.
7

OTHER OPTIONS AND FEATURES
Mode Fan
COMPRESSOR TIME DELAY
Your thermostat has a built in 4-minute time delay to
prevent the air conditioner or heat pump from short
cycling. When the short cycle timer is active and the
thermostat is calling, the symbol next to will Cool
blink on the display until the time delay has expired. If
the thermostat has been configured for heat pump or
dual fuel operation and it call for compressor heating,
the symbol next to Heat will blink on the display until
the time delay has expired.
LOW BATTERY INDICATION
Your thermostat can be wired using battery power or
both battery power and 24 volts from the HVAC
equipment. If the symbol appears on Low Batt
the display, it’s time to replace the batteries. The
battery access compartment is located on the front of
the thermostat. Simply swing the hinged door down.
Install the two AA batteries matching the + and -
orientation. Close the door until it clicks shut.
8
- AA +
+ AA -