Venstar TSTATEZ Manuale utente

Venstar Inc. 08/07

Use with most Air Conditioning & Heating Systems including: 1 or 2 Stage

Electric Cooling & 2 Stage Gas Heating, Heat Pump, Electric or Hydronic Heat.

PROGRAMMABLE

Single Day

PROGRAMMABLE

Single Day

up to

& 2-cool

up to

& 2-cool

2-heat

INSTALLATION

INSTRUCTIONS

INSTALLATION

INSTRUCTIONS

asy

Stat

residential

T H E R M O S TAT

TSTATEZ

world’s easiest

PROGRAMMABLE THERMOSTAT

One for All - Can Control:

- Gas / Electric

- Heat Pump

- Electric Heat

- Hydronic Systems

Non-Volatile Memory - Retains settings

in the event of a power failure

Outdoor Sensor Ready -

Compatible with the

optional wired, or wireless

Outdoor Sensor

HEAT

COOL HEAT

PUMP

Table Of Contents

Step #1: Preparation

Step #2: Remove & Replace

Old Thermostat

Step #3: Wire Connections

Step #4: Test Operation

Trouble Shooting

CAUTION Follow Installation Instructions carefully.

DISCONNECT POWER TO THE HEATER -

AIR CONDITIONER BEFORE REMOVING

THE OLD THERMOSTAT AND INSTALLING

THE NEW THERMOSTAT.

WARNING

P/N TSTAT1100EZ

This device complies with Part 15 of the FCC rules.

Operation is subject to the following two conditions:

(1) This device may not cause harmful interference, and

(2) this device must accept any interference received,

including interference that may cause undesired operation.

Page 1

Sample Wiring Diagrams

Venstar Inc. 08/07

STEP #1

PREPARATION

Proper installation of the thermostat will be

accomplished by following these step

by step instructions. If you are unsure

about any of these steps, call a qualified

technician for assistance.

These tools will be required:

Flat Blade

Screwdriver

Wire cutter

& Stripper

Make sure your Heater/Air Conditioner

is working properly before beginning

installation of the thermostat.

Carefully unpack the thermostat.

Save the screws and instructions.

Turn off the power to the Heating/Air

Conditioning system at the main fuse

panel. Most residential systems have

a separate breaker for disconnecting

power to the furnace.

Proper installation of the thermostat will be

accomplished by following these step

by step instructions. If you are unsure

about any of these steps, call a qualified

technician for assistance.

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STEP #2

REMOVE & REPLACE OLD THERMOSTAT

Remove the cover of the old thermostat.

If it does not come off easily check for

screws.

Loosen the screws holding the thermostat

base or subbase to the wall, and lift away.

Disconnect the wires from the old

thermostat. Tape the ends of the wires

as you disconnect them, and mark them

with the letter of the terminal for easy

reconnection to the new thermostat.

Keep the old thermostat for reference

purposes, until your new thermostat is

functioning properly.

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STEP #3

WIRE CONNECTIONS

If the terminal designations on your old

thermostat do not match those on the

new thermostat, refer to the chart below,

or the wiring diagrams that follow.

* C may not be used on all systems.

** O/B is used if your system is a Heat Pump.

Wire from the

old thermostat

terminal marked Function

Install on the

new thermostat

connector marked

G or F Fan G

Y1, Y or C Cooling Y1

W1, W or H Heating W1,O,B

W1,O,B**

PowerRh, R, M, Vr, A R

O/B

C *

Common

Rev. Valve

Y2 Y2

W2 W2

2nd Stage Cool

2nd Stage Heat

RS+5 RS+5

Remote Sensor +5vdc

RS RS

Remote Sensor Signal

RS G GND

Remote Sensor Ground

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Sample Wiring Diagrams

Thermostat

Y2 W1

24 vac common

24 vac return

fan relay

compressor relay

1st stage heat circuit

Y2 W1

24 vac return

fan relay

compressor relay

1st stage heat circuit

5 Wire, 1 Stage Cooling, 1 Stage Gas Heat

4 Wire, 1 Stage Cooling, 1 Stage Gas Heat

Residential Gas or Electric Heat *,

Electric Cool, split systems & package

units

Residential Gas or Electric Heat *,

Electric Cool, split systems & package

units

*If using electric heat this option must be

selected on during advanced setup.

Page 5

Sample Wiring Diagrams

Y2 W1

24 vac common

24 vac return

fan relay

compressor relay

2nd stage compressor relay

1st stage heat circuit

Y2 W1

24 vac common

24 vac return

fan relay

compressor relay

1st stage heat circuit

2nd stage heat circuit

Residential 2 Stage Cooling, with

Gas or Electric Heat*

Residential & Commercial 1 Stage Cooling,

with 2 Stage Gas or Electric Heat*

6 Wire, 2 Stage Cooling, 1 Stage Heat

6 Wire, 1 Stage Cooling, 2 Stage Heat

Thermostat

*If using electric heat this option must be

selected on during advanced setup.

Page 6

Sample Wiring Diagrams

Y2 W1

24 vac common

24 vac return

fan relay

compressor relay

2nd stage compressor relay

1st stage heat circuit

2nd stage heat circuit

Y2 W1

24 vac common

24 vac return

fan relay

compressor relay

reversing valve

Commercial Gas or Electric Heat *,

Electric Cool, split systems & package units

including Commercial Heat Pumps **

No auxiliary heat,

Residential Heat Pumps ,

split systems & package units

7 Wire, 2 Stage Cooling, 2 Stage Heat

5 Wire, 1 Stage Cooling, 1 Stage Heat - Heat Pump***

Thermostat

*** If using Residential Heat Pump, this option

must be selected on during advanced setup.

** Commercial Heat Pumps do not have

the heat pump turned on in advanced setup.

* If using electric heat, this option must

be selected on during advanced setup.

Page 7

Sample Wiring Diagram

Y2 W1

24 vac common

24 vac return

fan relay

compressor relay

1st stage heat circuit

2nd stage heat circuit

6 Wire, 1 Stage Cooling, 2 Stage Heat, Heat Pump *

Most residential split and package heat pumps

with auxiliary heat

Thermostat

* The heat pump option must be selected

on during advanced setup.

Page 8

STEP #4

TEST OPERATION

On the thermostat, press the MODE/NEXT

button repeatedly until the HEAT icon

appears on the display. Press the UP or

DOWN button until the set temperature is 10

degrees above room temperature. The

HVAC unit should energize in the heating

mode. Note: You may need to wait up to five

minutes for heating to energize due to the

compressor lockout feature.

On the thermostat, press the MODE/NEXT

button repeatedly until the COOL icon

appears on the display. Press the UP or

DOWN button until the set temperature is 10

degrees below room temperature. The

HVAC unit should energize in the cooling

mode. Note: You may need to wait up to five

minutes for cooling to energize due to the

compressor lockout feature.

Turn the power on to the Heating/Air

Conditioning system.

Press the UP button until the setpoint is

equal to the room temperature. Press

the FAN button to Fan On. The fan should

turn on and run continuously.

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