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Calibration 

Your thermostat comes from the factory calibrated to 

±

 1 degree 

of actual temperature. If you want your thermostat to display the 
same temperature as another thermostat in your home, you can 
adjust its calibration. 

To change the calibration: 

1.  Remove the top cover section. 

2.  Locate the Calibration switch and slide it to the On position. 

The current calibration factor will appear on the display. 

3.  Push the Up or Down arrows until the desired calibration 

factor is reached. 

4.  Slide the Calibration switch to the Off position. The new 

calibrated temperature will appear on the LCD display. 

5.  Replace the top cover section. 

Temperature ranges 

Room temperature range: 28 to 99

°

F (-4 to 37

°

C) increment 1

°

F or 

0.5

°

C. 

Target temperature range: 35 to 95

°

F (2 to 35

°

C) increment 1

°

F or 

0.5

°

C. 

The heat and cool modes have independent targets. 

Z-Wave capability 

The IS-ZW-TSTAT-100 has two radio ports. These allow your 
thermostat to communicate with other systems. Depending on 
your area power company, programs may be available to connect 
your thermostat to power grid status information. This can make it 
easy for you to moderate your energy use at peak hours and use 
power when it is less expensive. 

You can connect your IS-ZW-TSTAT-100 to a home automation 
network for home automation functionality with remote access to 
your HVAC system and home conditions. 

To insert the Z-Wave radio module: 

1.  Power off the IS-ZW-TSTAT-100 thermostat. 

2.  Insert the radio module in either slot on the back of the IS-

ZW-TSTAT-100. 

3.  Power up the IS-ZW-TSTAT-100 thermostat. 

To connect to a network, follow the instructions that come with 
the third-party provider materials. 

Caution: 

Make sure the power is off to the thermostat before you 

insert radio modules to prevent possible damage to the 
thermostat or radio modules. 

Figure 3: Z-Wave radio and port 

Z-Wave radio

Radio port

 

Specifications 

 

Voltage 

24 VAC (supplied via the C wire) 

Backup batteries 

 

Three AA Alkaline batteries  (Duracell, Energizer) 
Do not use rechargeable batteries. 

Dimensions (W × H × D) 

5.5 × 3.5 × 1.5 in. (140 × 89 × 38 mm) 

Operating environment 
      Temperature 
      Relative humidity 

Indoor use only 
32 to 104

°

F (0 to 40

°

C) 

10 to 90% noncondensing 

 

 

FCC regulatory information  

This equipment has been tested and found to comply with the limits for a 
Class B digital device, pursuant to Part 15 of the FCC Rules. These limits are 
designed to provide reasonable protection against harmful interference in 
a residential installation. This equipment generates, uses, and can radiate 
radio frequency energy, and if not installed and used in accordance with 
the instructions, may cause harmful interference to radio communications. 
However, there is no guarantee that interference will not occur in a 
particular installation. If this equipment does cause harmful interference to 
radio or television reception, which can be determined by turning the 
equipment off and on, the user is encouraged to try and correct the 
interference by one or more of the following measures: 

• Reorient 

or 

relocate 

the receiving antenna. 

• 

Increase the separation between the equipment and receiver. 

• 

Connect the equipment into an outlet on a circuit different from that 
to which the receiver is connected. 

Consult the dealer or an experienced radio/TV technician for help. 

FCC ID: QO8-ZWave-0210 

IC regulatory information 

This Class B digital apparatus meets all requirements of the Canadian 
Interference Causing Equipment Regulations. 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 of the device. 

IC: 4714A-ZWave-0210 

P/N 1069535 • REV A • ISS 17MAR10 

 

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