Venstar T1070 Mode d'emploi
VENSTAR
FAN COIL
THERMOSTAT
FAN COIL
THERMOSTAT
T1070
NON-
PROGRAMMABLE
2 OR 4 PIPE
SYSTEMS
OWNER’S MANUAL
AND
INSTALLATION INSTRUCTIONS
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
Works with most fan
coil systems - 24vac
Electric heat ready
Non-volatile memory
Dual setpoint with
adjustable deadband
Keypad lockout
Configurable display
Display F or C
Model T1070
Table Of Contents
FRONT PANEL
DISPLAY
BASIC OPERATION
ADVANCED SETUP
ADVANCED SETUP TABLE
ABOUT ADVANCED FEATURES
& OPERATION
WARRANTY
SAMPLE WIRING DIAGRAMS
2
3
9
10
15
16
25
29
Page 1
CAUTION
WARNING
SELECTING THE HEAT
OR COOL MODE
5
Disconnect Power
to the Heater/Air Conditioner
before removing the old therm-
ostat and installing the new
thermostat.
Copyright 2012 Venstar, Inc
All Rights Reserved
72
74
70
COOL
HEAT
AUTO
Front Panel
Page 2
Liquid Crystal Display
Up/Down Buttons
Mode Button
Fan Button
Heat or Cool Indicator
Heat = Red, Cool = Green
1
1
2
3
4
5
2
3
45
Mode Fan
Display
OUTSIDE
unoccupied
1
2
3
4
Mode Indicators - Page 5-8
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.
Room Temperature Display
Indicates current room temperature.
Desired Set Temperature - Page 9
Indicates desired room temperature(s).
Setup icon - Pages 10-14
Indicates the thermostat is in the advanced setup
mode.
1
1
1
2
3
4
3
Page 3
Display
OUTSIDE
unoccupied
5
6
7
8
5
6
7
8
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
Indicates keypad has been locked.
Outside icon - Page 22
Indicates the temperature displayed is from the
optional outside sensor.
Unoccupied icons - Pages 13-14
Indicates a dry contact forced Unoccupied time
period is in effect.
Page 4
70 68
HEAT
70
76
COOL
70
76
68
COOL
HEAT
AUTO
70
OFF
Press
MODE
Press
Press
MODE
MODE
Page 5
The HEAT setting indicates
the temperature the room
has to reach before the
heating source will turn
on to heat the room.
Heating Only
The COOL setting indicates
the temperature the room
has to reach before the
cooling source will turn
on to cool the room.
Cooling Only
OFF indicates both heating
and cooling are turned off.
Off
AUTO will automatically
select heat or cool based
on room temperature
demand.
Heating or Cooling
Select Mode by Pressing the MODE Button
Selecting the Heat or Cool Mode 4-Pipe Operation
Heat Only
Step #4 = 1 in the Advanced Setup section,
page 11.
70 68
HEAT
70
OFF
Press
MODE
Selecting the Heat or Cool Mode 2-Pipe Operation
The HEAT setting indicates
the temperature the room
has to reach before the
heating source will turn
on to heat the room.
Heating Only
OFF indicates both heating
and cooling are turned off.
Off
Page 6
Cool Only
Step #4 = 2 in the Advanced Setup section,
page 11.
70
OFF
Press
MODE
70
76
COOL
Selecting the Heat or Cool Mode 2-Pipe Operation
The COOL setting indicates
the temperature the room
has to reach before the
cooling source will turn
on to cool the room.
Cooling Only
OFF indicates both heating
and cooling are turned off.
Off
Page 7
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.
70
OFF
Press
MODE
Press
Press
MODE
MODE
Page 8
70 69
70
72
Note: If the water temperature is changed during the
year, the thermostat will then automatically lock out the
incorrect mode.
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).
Selecting the Heat or Cool Mode 2-Pipe Operation
70
72
69
If step #4 = 3, this
screen will not appear.
AUTO will automatically select
heat or cool based on the room
temperature demand.
OFF indicates both heating
and cooling are turned off.
Selecting Your Desired Temperature
(adjusting the setpoints)
Basic Operation
70
76
68
COOL
HEAT
AUTO
AUTO OR PROGRAM MODE
Pressing the UP or DOWN button in Auto or Program
mode will adjust both the heat and cool set temperatures
simultaneously.
buttons.
Adjust the desired
set temperature with the
Fan Operation
Press
FAN
Press
FAN
Press
FAN
Press
FAN
Press
FAN
Low Speed Medium Speed High Speed Auto
Fan
Pressing the FAN button will run the fan in
low, medium, or high speed continuously
(see below and page 20).
When only the Fan icon is displayed, the fan
is in the Auto mode and will run only when
necessary to heat or cool (see below and
page 20).
Note: If the thermostat is placed in the Off mode, the fan
will de-energize.
Fan Fan Fan
Page 9
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