Venstar T1035 User manual

Venstar Inc. 05/08

Use with most Air Conditioning & Heating Systems including: 1 or Stage

Electric Cooling & 1 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat.

Digital

Thermostat

Digital

Thermostat

residential

T1035

THERMOSTAT

OWNER’S

MANUAL

OWNER’S

MANUAL

Stages: 1-Heat, 1-Cool

Battery or System Powered

Back-Lit Digital Display

Fahrenheit or Celsius

Service Filter Indicator

HEAT

COOL HEAT

PUMP

PROGRAMMABLE

5+2 DAY

PROGRAMMABLE

5+2 DAY

up to

& 1-cool

up to

& 1-cool

1-heat

Bi-Color LED (when system powered)

Page 2

Contents Page #

Time Period Programming

Advanced Setup

Battery Replacement

Weekday Programming

Weekend Programming

Normal Operation

Page #

Safety Warnings

Location of Controls

Programmed Operation

Advanced Features

Overview

Manual Operation

Warranty

Display

Clock Set

Factory Defaults

Calibration

OWNER'S MANUAL

T1035

The two Alkaline “AA” batteries must be replaced at

least once every 12 months to ensure proper

operation. The Low Battery icon (fig. 1) will

appear on the display when it is time to replace

the batteries. If the thermostat is connected to

24v power, the batteries should still be installed, but

are not required.

When is displayed the batteries must be replaced

immediately. The manufacturer cannot be liable for

improper operation of the thermostat if the batteries are

not immediately replaced.

Annual battery replacement is especially critical in

locations subject to freezing temperatures. The

thermostat will be unable to turn on the heating system

if the batteries are exhausted.

CAUTION Follow Installation Instructions carefully.

DISCONNECT POWER TO THE HEATER -

AIR CONDITIONER BEFORE REMOVING

THE OLD THERMOSTAT AND INSTALLING

THE NEW THERMOSTAT.

WARNING

Page 3

Safety Warnings

CAUTION

FIG. 1

P/N 1035

OWNER'S MANUAL

T1035

I2:00

Location of Controls

Page 4

OWNER'S MANUAL

T1035

PROGRAM SWITCH

RUN program

Program OFF

SET program

NEXT BUTTON

For programming

How to Use: The NEXT

button is used to ad-

vance from one step to

the next in the progra-

mming and advanced

setup screens (pgs 9-

18).

RESET FILTER

How to Use: Press and

hold the RESET FILTER

button to clear the

icon from the

display (pg 5). To adjust

when the icon

appears, see Advanced

Setup screens (pg 18).

FILTER

On or Auto

FAN SWITCH

COOLER &

WA R M E R

BUTTONS

DISPLAY MODE SWITCH

Cool, Off or Heat

BI-COLOR LED

Heat or Cool demand

indicator when system

powered: Red = Heat

Green = Cool

SET

MTuWThF

SaSu

PM MorningEvening

Day

Night

HEAT

COOL

I2:00

FILTER

Page 5

Display

Day of the week. When programming, MTuWThF

represent the five weekdays and SaSu represent the

two weekend days.

Clock Display.

Desired set temperature.

Current room temperature.

Time period indicators. These indicate the part of

the program that is currently active, if the Program

Switch is positioned to RUN.

Indicates when the filter should be serviced. Appears

after 0 - 1950 hours of blower operation (adjustable).

Indicates batteries need replacement.

OWNER'S MANUAL

T1035

Heat and Cool indicators.

In normal operation, Heat or Cool appears, depending

on the Mode Switch position. When heat or cool is

energized, the Heat or Cool indicator will flash. If the

thermostat is system powered the bi-color LED will

also illuminate (red for heating and green for cooling).

I2:00

Page 6

Manual Operation (Program Switch OFF)

Select Cool or Heat with the Mode Switch.

Normally leave the fan switched to Auto.

In Fan Auto, the fan will turn on only with a heat

or cool demand. When Fan On is selected, the

fan will run continuously.

Adjust the desired set temperature with the

COOLER and WARMER buttons.

Normal Operation

OWNER'S MANUAL

T1035

PROGRAM SWITCH

RUN program

Program OFF

SET program

On or Auto

FAN SWITCH

COOLER &

WA R M E R

BUTTONS

MODE SWITCH

Cool, Off or Heat

I2:00

Page 7

Normal Operation

Programmed Operation

Select Cool or Heat with the Mode Switch.

Normally leave the fan switched to Auto.

In Fan Auto, the fan will turn on only with a heat

or cool demand. When Fan On is selected, the

fan will run continuously.

The desired set temperature may be temporarily

overridden. The thermostat will revert to the

programmed settings in the following time period.

Select RUN with the Program Switch.

OWNER'S MANUAL

T1035

PROGRAM SWITCH

RUN program

Program OFF

SET program

On or Auto

FAN SWITCH

COOLER &

WA R M E R

BUTTONS

MODE SWITCH

Cool, Off or Heat

Page 8

Clock Set

Use these buttons to

adjust the current time.

Use these buttons to

adjust the current day.

Setting the time & day are the first two steps after

sliding the Program Switch to SET.

Slide the Program Switch to

the SET position.

This thermostat is preprogrammed from the

factory to operate 1-stage equipment without

the need for further programming. To optimize the

installation of this thermostat follow the instructions

in the Advanced Setup section.

6:00

To slew the time more rapidly, push and hold the COOLER or

WARMER buttons.

OWNER'S MANUAL

T1035

Press NEXT

to advance

Time Period Programming

PROGRAM SWITCH

Page 9

Overview

Slide the Program Switch to the SET position.

The blinking icon(s) on the display may be

changed by pressing the COOLER or

WARMER buttons.

After the blinking icon is changed to the desired

selection, press the NEXT button.

Each item in the time period programming screens will flash

and can be modified with the COOLER & WARMER buttons.

Continue the steps above until programming is complete.

Slide the Program Switch to RUN and the thermostat

will run the time period programming.

If the Program Switch is in the OFF position, the thermostat

will not run the time period program. In this case, the

thermostat will be a manual heat or cool only thermostat.

OWNER'S MANUAL

T1035

Page 10

Weekday Programming

Time Period Programming

MTuWThF

AM Morning

6:00

SET

MTuWThF

AM Morning

COOL

6:00

SET

MTuWThF

AM Morning

HEAT

6:00

MTuWThF

Day

8:00

Use these buttons to

adjust the start time for

the morning time period.

Use these buttons to

adjust the cool setpoint for

the morning time period.

Use these buttons to

adjust the heat setpoint for

the morning time period.

Use these buttons to

adjust the start time for

the day time period.

Setting the time & day are the first two steps

after sliding the Program Switch to SET

(page 8).

OWNER'S MANUAL

T1035

Press NEXT

to advance

Press NEXT

to advance

Press NEXT

to advance

Press NEXT

to advance

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