Venstar T1070 User Manual
VENSTAR
FAN COIL
THERMOSTAT
FAN COIL
T1070
THERMOSTAT
NON-
PROGRAMMABLE
2 OR 4 PIPE
SYSTEMS
Works with most fan
Remote sensor ready
3 speed fan control
Self-prompting adjustment
Auto 2-pipe changeover
when used with ACC-SENFC
changeover sensor
Dry contact equipped
Backlit display
coil systems - 24vac
Electric heat ready
Non-volatile memory
Dual setpoint with
adjustable deadband
Keypad lockout
Configurable display
Display F or C
OWNER’S MANUAL
AND
INSTALLATION INSTRUCTIONS
Table Of Contents
FRONT PANEL
DISPLAY
SELECTING THE HEAT
OR COOL MODE
BASIC OPERATION
ADVANCED SETUP
ADVANCED SETUP TABLE
ABOUT ADVANCED FEATURES
& OPERATION
SAMPLE WIRING DIAGRAMS
WARRANTY
CAUTION
before removing the old therm-
Disconnect Power
to the Heater/Air Conditioner
ostat and installing the new
thermostat.
Model T1070
2
3
5
9
10
15
16
25
29
WARNING
Copyright 2012 Venstar, Inc
All Rights Reserved
Page 1
Front Panel
1
74
COOL
AUTO
72
Mode Fan
3
4
1
Liquid Crystal Display
2
Up/Down Buttons
Mode Button
3
4
Fan Button
5
Heat or Cool Indicator
Heat = Red, Cool = Green
Page 2
HEAT
70
2
5
Display
4
3
unoccupied
2
OUTSIDE
1
1
1
3
Mode Indicators - Page 5-8
1
Selects the operational mode of the equipment.
HEAT - Indicates the heating mode.
COOL - Indicates the cooling mode.
AUTO - Indicates the system will automatically
changeover between heat and cool modes
as the temperature varies.
OFF - Indicates heating and cooling are turned off.
2
Room Temperature Display
Indicates current room temperature.
3
Desired Set Temperature - Page 9
Indicates desired room temperature(s).
Setup icon - Pages 10-14
4
Indicates the thermostat is in the advanced setup
mode.
Page 3
Display
8
unoccupied
OUTSIDE
5
5
Fan icon - Page 9
Indicates fan operation.
Fan = low speed
Fan = medium speed
Fan = high speed
When only the Fan icon is displayed, the fan is in
the Auto mode and will run only when necessary to
heat or cool.
Locked icon - Page 21
6
Indicates keypad has been locked.
7
Outside icon - Page 22
Indicates the temperature displayed is from the
optional outside sensor.
8
Unoccupied icons - Pages 13-14
Indicates a dry contact forced Unoccupied time
period is in effect.
6
7
Page 4
Selecting the Heat or Cool Mode 4-Pipe Operation
Select Mode by Pressing the MODE Button
Heating Only
The HEAT setting indicates
the temperature the room
has to reach before the
heating source will turn
on to heat the room.
Cooling Only
The COOL setting indicates
the temperature the room
has to reach before the
cooling source will turn
on to cool the room.
Heating or Cooling
AUTO will automatically
select heat or cool based
on room temperature
demand.
70
70
70
HEAT
68
76
COOL
76
COOL
AUTO
HEAT
68
Press
MODE
Press
MODE
Press
MODE
Off
OFF indicates both heating
and cooling are turned off.
Page 5
OFF
70
Selecting the Heat or Cool Mode 2-Pipe Operation
Heat Only
Step #4 = 1 in the Advanced Setup section,
page 11.
Heating Only
The HEAT setting indicates
the temperature the room
has to reach before the
heating source will turn
on to heat the room.
Off
OFF indicates both heating
and cooling are turned off.
70
HEAT
68
Press
MODE
OFF
70
Page 6
Selecting the Heat or Cool Mode 2-Pipe Operation
Cool Only
Step #4 = 2 in the Advanced Setup section,
page 11.
Cooling Only
The COOL setting indicates
the temperature the room
has to reach before the
cooling source will turn
on to cool the room.
Off
OFF indicates both heating
and cooling are turned off.
Page 7
70
70
76
COOL
OFF
Press
MODE
Selecting the Heat or Cool Mode 2-Pipe Operation
Heating and/or Cooling
Step #4 = 3 in Advanced Setup (page 11), and the
accessory changeover sensor (ACC-SENFC) is used.
If step #4 = 4 or 5 in Advanced Setup (page 11).
Operation is the same as a 4-pipe system (page 5).
HEAT indicates the temperature
the room has to reach before the
heating source energizes. If the
water supply is cold, this screen
and heating would be locked out.
COOL indicates the temperature
the room has to reach before the
cooling source energizes. If the
water supply is hot, this screen
and cooling would be locked out.
If step #4 = 3, this
screen will not appear.
AUTO will automatically select
heat or cool based on the room
temperature demand.
70
70
70
69
72
72
69
Press
MODE
Press
MODE
Press
MODE
OFF indicates both heating
and cooling are turned off.
OFF
70
Note: If the water temperature is changed during the
year, the thermostat will then automatically lock out the
incorrect mode.
Page 8
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