RCS TZ45 User manual

Model TZ45
Z-Wave Thermostat
INSTALLATION
AND
OPERATION MANUAL
DCN: 141-01773-02
1/19/11
RCS

DCN: 141-01773-02 1/19/11 2
Model: TZ45
Z-Wave Thermostat
This manual applies to the following product revisions or later revisions up to the next manual revision
release:
Product Part No: Firmware Revision
Z-Wave Thermostat 001-01773 1.00.3
Document Revision History
Revision Date Changes
01 10/20/10 Original release
02 1/19/11 Canadian Certification addition
Product Specifications
Product Model: TZ45
Product: Thermostat for Heating and Cooling HVAC System control.
Z-Wave RF communications enabled
Thermostat
Size: 5.7” wide x 4.0” height x 1.2” depth
Display: Graphical LCD, 2.75” x 1.5”, 64x128 pixel
Backlight: Yes, Blue/white, Controllable, on, off, timeout
Contrast: Adjustable on screen
Buttons: 6
LEDs: 4 (3 green, 1 red)
Power: 24VAC from HVAC System
Temperature Sensing Range: -40F to +190F
HVAC System Type Compatible: Standard (gas/electric) or Heat Pump
Multistage System Compatible:
Standard HVAC Systems: 2 stage heating, 2 stage cooling
Heat Pump Systems: 3 stage heating (2 compressor, 1 aux heat), 2 stage cooling
Heat Pump change over valve: Selectable change over with cool or with heat
Remote Sensors: 2 connections, two wire, remote primary or averaging
Communications: Z-Wave RF

DCN: 141-01773-02 1/19/11 3
Table of Contents
Overview ......................................................................................................................................................4
Z-Wave® Installation...................................................................................................................................5
Setback Mode Operation...........................................................................................................................5
Inclusion and Exclusion.............................................................................................................................5
Thermostat Control Screen........................................................................................................................6
Temperature Display .................................................................................................................................6
Setpoint Display.........................................................................................................................................6
Thermostat Operation Buttons...................................................................................................................7
Setpoint Up/Down Buttons.........................................................................................................................7
Clock Display.............................................................................................................................................7
LED Displays.............................................................................................................................................7
Setting Heating or Cooling Setpoints.........................................................................................................8
Schedules Screen....................................................................................................................................13
User Settings Screen...............................................................................................................................16
Thermostat Info Screen...........................................................................................................................22
Main Menu > Installer Settings (Hidden Screen).................................................................................23
Installer Settings Summary......................................................................................................................26
HVAC System Connection........................................................................................................................27
HVAC System Compatibility....................................................................................................................27
Remote Communications ........................................................................................................................27
HVAC System Operation and Setup........................................................................................................28
Standard HVAC System Types ...............................................................................................................28
Heat Pump HVAC System Types............................................................................................................28
Power.......................................................................................................................................................30
Standard Gas/Electric HVAC System Wiring ..........................................................................................31
Heat Pump HVAC System Wiring............................................................................................................32
FCC.............................................................................................................................................................33
IC.................................................................................................................................................................33

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Overview
Z-Wave Thermostat
The Z-Wave thermostat provides for typical thermostat control of a central heating and cooling HVAC
system plus has the added feature of Z-Wave communications for remote control.
The thermostat has a large, backlit graphical display, control buttons, status LEDs and a temperature
sensor. The thermostat can display multiple screens for different functions of the thermostat. The default
thermostat control screen shown below, will display the current room temperature, heating and cooling
setpoints, system mode, manual-fan mode, time, and status information.
Display operation
Thermostat control screen
Normally the thermostat displays the thermostat control screen as shown above. Using the “Menu”
button, you can access other screens and functions of the thermostat.
Minimized Display Mode
Optionally, you can set the thermostat to show only the temperature in a “minimized” display mode.
This mode can be set on or off in the thermostat “Users Settings” menu.
Backlight
The thermostat has a backlit display for low light and night visibility. It can be set to remain on constantly,
or to turn off after a 20-120 second delay. These are selectable in the User Settings menu.
Status LEDs
The thermostat has four LED’s that displays status information. The LEDs have dynamic “on-screen”
labels that change with the screen being displayed.
Function Control Buttons
The thermostats buttons are “Soft Keys” meaning that they change functions when you change screens.
The function of the button is defined by “on-screen labels” that are dynamic and change when you change
screens
Status
Indicator
LEDs Setpoint
Up/Down
Buttons
Function Control Buttons
Heating (H)
And
Cooling (C)
Setpoints
On-screen
dynamic
button labels

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Z-Wave® Installation
Z-Wave controllers from various manufacturers may support the Z-Wave Thermostat General V2 Device
class used by the RCS Z-WAVE Thermostat. The following procedure will allow the thermostat to be
added to a Z-Wave network.
General Programming Procedure (for controllers supporting the thermostat device class):
1. Set your primary controller to Include mode, to add the thermostat as a node on your network
(see your controller’s user manual for detailed instructions).
2. In the Thermostat’s Main Menu, scroll down to the ZWave Install item. Select the item.
3. Press the YES button in the ZWave Install screen.
Your controller will indicate the thermostat was successfully added to its network (see your controller’s
user manual for details). Also you can check if the thermostat was successfully added to the network
by checking the ZHID (Home ID) and ZNID (Node ID) located in the Thermostat Info screen.
For other specific tasks such as adding the thermostat to Scenes or Groups, or deleting the
thermostat from an existing network, use the Z-Wave Install procedure.
Note: Before adding the thermostat to a Z-Wave Network, check that it does not already belong to
one by viewing the Home and Zone ID’s located in the Thermostat Info screen. An un-configured
thermostat should show zeros for both the Home and Zone IDs. Consult your controller’s user manual
for details on removing a device from a Z-Wave network.
Setback Mode Operation
If your controller does not support full thermostat device class functions, it may still be able to control the
energy saving AWAY mode of the thermostat through BASIC_SET commands.
Sending the BASIC_SET (Value = 0x00), the thermostat will go into the AWAY mode and use the
predefined AWAY setback setpoints. These setpoints are set in the Main Menu Away Setpoints item.
Sending the BASIC_SET (Value = 0xFF), the thermostat will revert back to the mode it was in (Hold or
Run) before the BASIC_SET (Value = 0x00) command was sent.
Note that when the BASIC_SET commands are sent, the TZ45 will momentarily display the new mode on
the Schedule Mode screen.
Inclusion and Exclusion
Inclusion or exclusion is started by putting the controller into add node or remove node state and
performing the General Programming Procedure outlined above. As part of the process, the thermostat
sends a node information frame at normal power.
Low power inclusion or low power exclusion is not possible.

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Thermostat Control Screen
Minimized Screen
Main Thermostat Control Screen
The main Thermostat Control Screen is the screen that is normally displayed on the thermostat.
Temperature Display
The thermostat will normally display the current room temperature from the internal temperature sensor
(or a remote sensor, if installed).
Setpoint Display
The current heating and cooling setpoints are displayed next to the Setpoint Up/Down buttons.
74
72
Press any button to return to
the thermostat control screen
The Minimized Screen
shows only the room
temperature.
It is displayed if you set
the “Screen Timeout” in
the User Settings Menu to
a time greater than 0.
If set to 0, the minimized
screen is disabled, and the
main thermostat screen is
normally displayed
MENU COOL MODE
72 H
AUTO
FAN HOLD
74
2
75 C
4:30 PM
SYS OFF
ECON
HOLD
NO MSG
Status
Indicator
LEDs
On-screen
dynamic
button labels
Setpoint
Up/Down
Buttons
Heating (H)
And
Cooling (C)
Setpoints
Thermostat Operation Buttons
L1
L2
L3
L4

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Thermostat Operation Buttons
Menu – go to the Main Menu Screen to select other thermostat settings screens
System Mode – go to the System Mode screen to set thermostat operating mode
Fan Mode – go to the Fan mode screen to set the fan mode
Schedule Mode – go to the Schedule mode screen to set schedule mode or setback
Setpoint Up/Down Buttons
Press either the Up or Down buttons to go to the Heating or Cooling Setpoint screen.
Clock Display
The current time is displayed in the upper left corner of the main screen. Set the clock from the User
Settings Menu. The time will blink when the clock has not been set.
LED Displays
The Thermostat Control Screen has the following LEDs and on-screen labels.
LED L1 Green: System Operation mode.
o“SYS OFF” displayed > HVAC system is OFF. LED Off.
o“SYS MOT” displayed > Minimum Off Time (MOT) delay On is active. LED Off.
o“HEAT ON” displayed > HVAC system is heating. LED On.
o“COOL ON” displayed > HVAC system is cooling. LED On.
o“HEAT MRT” displayed > HVAC system is Heating and Minimum Run Time (MRT) delay off is
active. LED On.
o“COOL MRT” displayed > HVAC system is Cooling and Minimum Run Time (MRT) delay off is
active. LED On.
LED L2 Green: System Stage mode
ono display > 1
st
stage heating or cooling. LED OFF.
o“2
nd
Stg” displayed > Stage 2 heating or cooling is active. LED On.
o“Aux Heat” displayed > Stage 3 heating is active. LED On.
LED L3 Green: Schedule mode. Shows state of Schedule Run/Hold Mode.
o“Run” displayed > Setback schedule is running. LED Off.
o“Hold” displayed > Schedule is off, temperature setpoint hold in effect. LED On.
o“Away” displayed > Away setback mode is active. LED On.
LED L4 RED: Alert LED. Used for system alerts
oNo display > No alerts. LED Off.
oAlert Text displayed > Specific alert text (Filter, Maint). LED On.

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Heating/Cooling Setpoint Setting
Setting Heating or Cooling Setpoints
Setpoint Up and Down Buttons
Press either the Up or Down button in the main Thermostat Control Screen to go to the current system
operating mode (Heating or Cooling) Setpoint screen. as shown below.
Heating /Cooling Setpoint Adjustment Screen
The UP and DOWN buttons adjust the setpoint temperature. Pressing the UP button will increment the
setpoint value by one degree and conversely, pressing the Down button will decrement the setpoint one
degree. Pressing and holding a button will cause the setpoint to continuously change until the button is
released.
Setpoint Range: The setpoints can be set from 50°F to 90°F (4°C to 32°C) for heating or 55°F to 99°F
(10°C to 37°C) for cooling.
Setpoint Push: Note that you cannot lower the cooling setpoint below the heating setpoint. The
thermostat will “push” the heating setpoint lower if you try to lower the cooling setpoint below the heating
setpoint. It maintains a 3 degree separation between the heating and cooling setpoint. The same is true
for raising the heating setpoint above the cooling setpoint. Again the thermostat will “push” the cooling
setpoint up to maintain the 3 degree separation.
NOTE: If the system mode is OFF, pressing either the Up or Down buttons will take you to the
System Mode screen. You must first set an operating mode before you can change the setpoints.
To change the Heat Setpoint you must be in Heating mode, to change the Cool Setpoint you must
be in the Cooling mode. If you are in Auto mode, the mode of the last system call will be the
setpoint screen displayed.
Heating and Cooling
setpoint setting buttons.
Adjust setpoint to
desired temperature.
HEATING SETPOINT
72
DONE
Down
Up
Press Done button to select new setpoint
and exit back to main thermostat screen.

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System Mode
Press the System Mode button to display the System Mode selection screen.
System Mode Screen
Mode Operation
OFF Mode: System is off. No heating or cooling will come on. If system was on, it will turn off.
HEATING Mode: Only heating will occur.
COOLING Mode: Only cooling will occur.
AUTO Mode: Heating or cooling will come on according to the heating and cooling setpoints. The
system will automatically switch between heating and cooling modes as needed to maintain the
setpoints.
Special Heat Pump Mode
EHEAT Mode: An additional system mode, “EHEAT” for Emergency Heat will be displayed if the
HVAC system type is set to Heat Pump. If there is a compressor failure with the Heat Pump system,
setting the mode to EHEAT will allow the supplemental Aux heat to come on first whenever there is a
call for heating. It also disables the compressor output to prevent further damage to the HVAC
system.
Select system mode
with Up or Down
buttons.
.
SYSTEM MODE
OFF
HEATING
COOLING
AUTO
DONE
Down
Up
Press DONE button to select mode and
exit back to main thermostat screen.
MODE
Press MODE button to go to the System Mode screen

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Fan Mode
FAN Button
The FAN button controls the HVAC system’s MANUAL fan mode. The current manual fan mode is
displayed above the button. Press the FAN button to go to the FAN MODE selection screen shown below.
Fan Mode Screen
Normally the FAN mode is in the Auto mode (the system fan is automatically controlled by HVAC system).
If you want the FAN on manually, select the ON mode. The fan will run continuously until it is turned off by
selecting AUTO mode.
Optional Fan Mode
Fan Cycler. If the Fan Cycler feature is enabled in the Installer Setup, the additional fan mode “Cycle” will
be shown in the Fan Mode menu. This mode cycles the fan on and off continuously for fresh air
ventilation according to the settings in the Installer Setup.
Select Fan mode with
Up or Down buttons.
FAN MODE
AUTO
ON
DONE
Down
Up
Press DONE button to select mode and exit
back to main Thermostat Control Screen.
FAN
Press FAN button to go to the FAN Mode screen.