Venstar T1070 Owner'S Manual And Installation Instructions Download Page 28

Sample Wiring Diagram

Page 27

Connection Diagram for Duct Sensor to

T1070 Fan Coil Thermostat

C

G2

W1

G3

G

Y1

Thermostat

Digital Sensor

High Temp. Heat
Shrink Tubing

5’ Plenum Rated
Cable

White

Black

Note: It is important to 
the black wire from the Duct 
Sensor directly to the R 
terminal on the thermostat 
backplate.

connect

R

RS

Summary of Contents for T1070

Page 1: ...emote 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...

Page 2: ...UT 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 remov...

Page 3: ...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 4 5 Mode Fan...

Page 4: ...icates 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 t...

Page 5: ...n 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 dis...

Page 6: ...at 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 ar...

Page 7: ...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 Onl...

Page 8: ...ss 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 Onl...

Page 9: ...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...

Page 10: ...ed 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 sp...

Page 11: ...screens Advanced Setup MODE FAN I ON Setup Press MODE Continued Page 10 Select Display operation 1 Single Setpoint 2 Dual Setpoint See Page 24 cooling setpoint will always be displayed To display the...

Page 12: ...ut Electric Heat when Hot Water is available 5 Heat Cool total electric heat no Hot Water only Electric Heat Note Steps 3 4 require accessory changeover sensor ACC SENFC 4 3 Setup Press MODE Press MOD...

Page 13: ...oil system 6 Advanced Setup Page 12 On Off 2 8 HEAT Setup Select backlight operation On Light continuously Off Light for 8 seconds after a button press Press MODE Press MODE Press MODE Setup 9 Step 7...

Page 14: ...ct thermostat operation in degrees Fahrenheit or Celsius Dry Contact NO Normally Open NC Normally Closed NO NC Setup I2 See Page 18 Press MODE Yes No Setup I0 Setup I I OUTSIDE Select sensor operation...

Page 15: ...thermostat will con trol to the Unoccupied setpoints Setup 85 I3 55 unoccupied Adjust the cooling setpoint for unocc upied periods 35 99 OF unoccupied Press MODE After programming is complete press t...

Page 16: ...4 1 Off Off 2 2 Off F No NO Unocc 85 55 Page 15 1 Display Declutter 2 Single or Dual Setpoint 3 2 or 4 Pipe System 4 2 Pipe System Operation 5 Fan Auto Operation 6 Fan Coil Type Operation 7 1st Stage...

Page 17: ...ll be displayed and may be calibrated using the UP or DOWN button After calibration is complete press the MODE button once to save your changes and return to normal operation Press button While holdin...

Page 18: ...nt plus the 1st stage deadband step 7 page 12 plus the 2nd stage dead band This 2nd stage deadband is fixed at one degree and is not adjustable The low speed fan for heat or cool is turned on when The...

Page 19: ...Unoccupied operation step 13 page 14 the thermostat will be forced into Unoccupied setpoints and the Unoccupied icon will appear on the display Connect wires to a time clock or other device to force...

Page 20: ...of the icons appear release the MODE and DOWN buttons Then press and hold the FAN button for 2 seconds After the letters Fd appear on the display Factory Default release the FAN button Press the MODE...

Page 21: ...e or a dry contact forced unoccupied time period see page 18 1 If a Duct sensor is connected to this thermostat then the fan should be programmed for continuous operation step 5 page 11 This will prov...

Page 22: ...ired setpoint Press the MODE button again to enter the Auto changeover mode where both the heat and cool setpoints are displayed KEYPAD LOCKOUT To prevent unauthorized use of the thermostat the front...

Page 23: ...on for two seconds until the Outside icon appears If an optional outside sensor is connected the outside temperature will appear on the display To exit the outside temperature display press any button...

Page 24: ...1 page 13 Page 23 Note If a Duct sensor is connected to this ther mostat then the fan should be programmed for continuous operation step 5 page 11 This will provide airflow over the Duct sensor and pr...

Page 25: ...Release the MODE button to return to the normal display FAN COIL TYPE This step instructs the thermostat how to set the G G2 and G3 outputs to yield the desired fan speeds Since this is a low voltage...

Page 26: ...Voltage Valve H2O Changeover Sensor COM G G3 G2 L M H R C R C G2 G3 G H2O V EH Y1 H O Changeover Sensor ACC SENFC 2 Generic Relay Board 24 Volt Water Valve 24vac Thermostat If 2 pipe with auxiliary el...

Page 27: ...ct Sensor ACC0402 R C R C G2 G3 G RS H2O Ck1 Y1 W1 H C 24 Volt Water Valves Thermostat 24vac Important Note If a Duct sensor is conn ected to this thermostat it is suggested that the fan be programmed...

Page 28: ...r to T1070 Fan Coil Thermostat C G2 W1 G3 G Y1 Thermostat Digital Sensor High Temp Heat Shrink Tubing 5 Plenum Rated Cable White Black Note It is important to the black wire from the Duct Sensor direc...

Page 29: ...a direct short which could damage transformers and or the if the units share a common ground with single thermostat it is possible to encounter interfere with thermostat thermostat Phasing problems a...

Page 30: ...DEALER OR OTHER PERSON WHATSOEVER ALL WORK UNDER THE TERMS OF THIS WARRANTY SHALL BE PERFORMED DURING NORMAL WORKING HOURS ALL REPLACEMENT PARTS WHETHER NEW OR REMANUFACTURED ASSUME AS THEIR WARRANTY...

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