Universal Remote Control THZ-100 User Manual

THZ-100 Thermostat

Owner's Manual

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UNIVERSAL REMOTE CONTROL, INC. SHALL NOT BE LIABLE FOR OPERATIONAL, TECHNICAL OR EDITORIAL ERRORS/OMISSIONS MADE IN THIS MANUAL.

The information in this manual may be subject to change without prior notice.

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Universal Remote Control,Inc.

500 Mamaroneck Avenue, Harrison, NY 10528

Phone: (914) 835-4484 Fax: (914) 835-4532

TABLE OF CONTENTS

Welcome To Your THZ-100 Thermostat 5

Installing Your THZ-100 Thermostat 6

Wiring Your THZ-100 Thermostat 7

Definitions 7

Single Stage Furnace and Single Stage A/C 7

Dual Stage Furnace and Dual Stage A/C 8

Single Stage Heat Pump with Reversing Valve O 8

Single Stage Heat Pump with Reversing Valve B 9

Dual Stage Heat Pump with Reversing Valve O 9

Dual Stage Heat Pump with Reversing Valve B 10

Boiler and A/C with Separate Transformers 10

First Stage Radiant Floor Heat, Second Stage Furnace with Single

Stage Cooling and External Pilot Duty Relay 11

Operation For Your THZ-100 Thermostat 12

Thermostat Display Information 12

Changing the Heating Temperature (Temperature Override) 13

Changing the Cooling Temperature (Temperature Override) 15

Auxiliary Heat 15

Emergency Heat 16

Password Protection 17

Programs 18

Changing to Vacation Mode 18

TABLE OF CONTENTS

Selecting Hold 19

Selecting Hold for Time 20

Returning to Schedule Mode 21

Options 22

Climate Modes 22

Changing the Fan Modes 26

Accessing Temperature Sensor Information 28

Turning Emergency Heat On or Off 29

Changing the Auxiliary Heat Offset Temperature 30

Changing the 2nd Stage Offset Temperature 30

Resetting the Filter Reminder 33

Turning the Password Protect Feature On or Off 34

Changing the LCD Screen Options 35

Viewing THZ-100 Thermostat Information 38

Setting the Date and Time 38

Discovery Mode 39

Troubleshooting Thermostat On-Screen Notifications 40

Resetting the THZ-100 hermostat 40

THZ-100 THERMOSTAT

Welcome To Your THZ-100 Thermostat

Congratulations on your purchase of this THZ-100 Thermostat from URC. Enjoy the full functionality of a stand-alone thermostat coupled with the ability, when used with a Total Control system, to be controlled from any user interface in the system. No more shivering under the covers, dreading to dare the inevitable cold on the way to the shower; grab the remote and make it nice and toasty, before removing the blanket!

Some of the advanced, and unique features found on the THZ-100 are:

Optional Wired Sensor

Easily add an additional sensor to the thermostat by purchasing the optional wired sensor. With the ability to temperature average between the sensor and the main unit, or simply take the place of the main unit’s on-board sensor, you can increase both efficiency and accuracy of temperature readings.

Intelligent Comfort Recovery

Every good thermostat has the ability to set heating and cooling schedules, but if you wake up at 7:30am, setting your heat to come on at 7:30am means waking up to an uncomfortable home while your system reaches your desired temperature. With Intelligent Comfort Recovery, the THZ-100 monitors the current temperature of your home and determines the amount of time it will take to reach your desired temperature at the desired time. Then, it slowly and more efficiently heats or cools to the new set point.

Security Code

Perfect for most commercial uses, and even for some homes where people have the need to ensure that only authorized people should have access to the THZ-100. Easily program your new thermostat with a 4-digit security code to make sure that only people with the code can access the thermostat.

Total Control Peripheral

Perhaps the best benefit is the THZ-100’s complete integration into a Total Control home system. When used with URC’s Total Control system, the thermostat control can be accessed from any of the system’s interfaces (dependent upon the system programmer). With the ability to control all of the THZ-100s in the home, it is also easy to incorporate heat/cool set points into various Automation Activities. Although the possibilities are endless, imagine a Goodnight button that would turn off your theater, turn off all the lights and bring the THZ-100 to the chosen set point!

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THZ-100 THERMOSTAT

Installing Your THZ-100 Thermostat

Adding an optional wired sensor can be a benefit if the thermostat location is not the optimal location for temperature measurement, or if temperature averaging is desired.

• A wired sensor can be connected to the S+ and S- terminals on the back of the unit

• This can be added to any of the wiring options detailed in the next pages

For optimum performance, mount the THZ-100 thermostat and/or remote sensor

• In an open living area where there is good air circulation

• On an inside wall

• Away from outside doors or windows

• At a height about 5 feet from the floor

Avoid installing the THZ-100 thermostat and/or remote sensor

• In direct sunlight

• Above radiators or air vents

• Near fans or portable heating units

• Near lamps or other incandescent lighting

• Near other heat generating electric appliances such as televisions, audio video equipment, refrigerators, freezers, ovens, cooktops, etc.

Other precautions when installing the THZ-100 thermostat and/or remote sensor

• Make sure the cutout for the HVAC wiring is no larger than needed to make proper connections to the thermostat

• If there is a large air gap in the cutout for the HVAC wiring, insulate around the wire and close off the air gap

• Make sure the air vents in the THZ-100 thermostat and/or remote sensor are clear of dirt, dust, or any construction material

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THZ-100 THERMOSTAT

Wiring Your THZ-100 Thermostat

Definitions

• RH – Heating System 24VAC

• RC – Cooling System 24VAC

• C – 24VAC Transformer Common

• G – Indoor Unit Fan Connection

• W1 – 1st Stage Heat

• W2 – 2nd Stage Heat

• Y1 – 1st Stage Cooling

• Y2 – 2nd Stage Cooling

• B – Normally Closed Reversing Valve

• O – Normally Open Reversing Valve

• S+ - Wired Sensor

• S- - Wired Sensor

Single Stage Furnace and Single Stage A/C

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THZ-100 THERMOSTAT

Dual Stage Furnace and Dual Stage A/C

Single Stage Heat Pump with Reversing Valve O

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THZ-100 THERMOSTAT

Single Stage Heat Pump with Reversing Valve B

Dual Stage Heat Pump with Reversing Valve O

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THZ-100 THERMOSTAT

Dual Stage Heat Pump with Reversing Valve B

Boiler and A/C with Separate Transformers

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THZ-100 THERMOSTAT

First Stage Radiant Floor Heat, Second Stage Furnace with Single Stage Cooling and External Pilot Duty Relay

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THZ-100 THERMOSTAT

Operation For Your THZ-100 Thermostat

Your THZ-100 thermostat has been programmed by the MRX Advanced Network System Controller system with your custom HVAC schedule of heat and cool set points for the selected time periods for each day of the week. In addition, the thermostat has been programmed by the MRX Advanced Network System Controller for the type of HVAC equipment, conventional or heat pump, the number of auxiliary heat and/or cool stages, any remote sensors, and any pass code lockout code if desired.

Thermostat Display Information

Your THZ-100 thermostat features a color backlit LCD display with all the information you need for easy operation. The top left of the screen has the fan mode information while the top right of the screen has the current system mode such as Heat or Cool.

The center of the screen displays the current temperature with different backgrounds dependant upon whether the thermostat is in Heating, Cooling or Idle mode. The small letter F or C at the lower right of the current temperature indicates the temperature scale.

Directly above the current temperature is the name of the program mode that is currently running: Morning, Day, Evening, Night, Vacation, Override, Hold, or Hold to <time>. When the system is OFF there is no text in this area.

Directly below the current temperature is information on the current comfort range and the set points. This area is also used for notifications such as Check Wireless, Check Network, or Check Filter which alternates on screen with the set point information.

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THZ-100 THERMOSTAT

At the bottom of the screen is a smart-key label to identify the current function of the push button located directly below.

Changing the Mode (Cool, Heat, Auto, Off)

To change the mode of your HVAC system equipment between Cooling, Heating, Auto (system will automatically change between cooling and heating) or OFF enter the Options menu then access the Climate Modes sub menu as described below.

Changing the Heating Temperature (Temperature Override)

To change the current heating temperature, press the Up or Down arrow key on the thermostat. The thermostat screen shows the current temperature on the left side and the desired temperature on the right side of the display.

Press the Up and Down arrow keys to set your new desired heating temperature to override the programmed value. To save the new desired value, press the key below the Set Temp key label in the smart-key labeled Set Temp at the bottom right of the display. You can also save the new desired temperature by simply allowing the display to time out while the current and desired override temperatures are displayed.

If you decide to cancel the operation, press the key below the Cancel key label in the smart-key label at the bottom left of the display.

This places the thermostat in the Override mode. While in this mode, the thermostat holds your new temperature selection until the next regularly scheduled time period in your pre-programmed HVAC schedule.

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THZ-100 THERMOSTAT

When the override set point is met, the information containing the desired override temperature transitions to information including the desired temperature and the heat and cool set points based on the override temperature.

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THZ-100 THERMOSTAT

Changing the Cooling Temperature (Temperature Override)

To change the current cooling temperature, press the Up or Down arrow key on the thermostat. The screen now shows the current temperature on the left side and the desired temperature on the right side of the display.

Press the Up and Down arrow keys to set your new desired cooling temperature to override the program value. To save the new desired value, press the key below the Set Temp key label in the smart-key label at the bottom right of the display. You can also save the new desired temperature by simply allowing the display to time out while the current and desired override temperatures are displayed.

If you decide to cancel the operation then press the key below the Cancel key label in the smart-key label at the bottom left of the display.

This places the thermostat in the Override mode. In the Override mode, the thermostat holds your new temperature selection until the next regularly scheduled time period in your pre-programmed HVAC schedule.

When the override set point is satisfied the information containing the desired override temperature with transition to information including the desired temperature and the heat and cool set points based on the override temperature.

Auxiliary Heat

Auxiliary heat consists of additional stages of conventional gas, or electric heat, capacity included with most heat pump systems. The auxiliary heat stages are automatically selected by the system when the outside temperature is too cold for the heat pump to heat your home effectively. The staging of the auxiliary heat is based on the information selected in the MRX Advanced Network System Controller setup of your thermostat.

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