GE CC-SCSTAT User Manual

gSmartCommand ThermostatInstallation Manual

SmartCommand ThermostatInstallation Manual6Run/Hold buttonThe Run/Hold button controls the automatic schedule operation. In hold mode, the current tem

7Main menu screenThe thermostat has a menu tree that can be accessed by pressing the Menu button on the main Thermostat control screen. Various config

SmartCommand ThermostatInstallation Manual8Messages screenThe Messages screen (Figure 4) allows you to retrieve text messages sent from the serial net

9Schedule setup screenThe Schedule setup screen allows you to review and set the setback schedule for the thermostat. The thermostat has a 4 by 7 sche

SmartCommand ThermostatInstallation Manual10Heat and cool schedule screenWhen you select the Heat and cool schedule menu item, the Heat and cool sched

11Copy schedule screenThe Copy schedule screen (Figure 7) is a sub screen of the Heat and cool schedule screen on page 10. The Copy schedule screen al

SmartCommand ThermostatInstallation Manual12User settings screenThe User settings screen (Figure 8) allows you to set or change various user options o

13Set clock screenThe Set clock screen (Figure 9) is a sub screen of the User settings screen. The Set clock screen allows you to set the thermostat’s

SmartCommand ThermostatInstallation Manual14Sensor calibration screenThe Sensor calibration screen (Figure 10) is a sub screen of the User settings sc

15Backlight display screenThe Backlight display screen (Figure 11) is a sub screen of the User settings screen. The Backlight display screen allows yo

Copyright Copyright © 2007 GE Security. All rights reserved. This document may not be copied in whole or in part or otherwise reproduced without

SmartCommand ThermostatInstallation Manual16Thermostat information screenThe Thermostat information screen (Figure 12) displays the current configurat

17Installer settings screenThe Installer settings screen is a hidden screen designed for installer use only. Do not change any settings in this screen

SmartCommand ThermostatInstallation Manual18Screen options include:Display lock: Y or N (default N). Use this setting to lock or unlock the thermosta

19Heating delta stage 3 on: 1 to 8 degrees (default 5). Set the delta from setpoint that stage 3 heating starts. Stage 3 turns off at setpoint.Coolin

SmartCommand ThermostatInstallation Manual20Installation overviewBefore you remove an existing thermostat and install the SmartCommand thermostat, fol

21Freeze protectionIn cold climates that require the heating system to be used for building freeze protection, a mechanical backup freeze protection d

SmartCommand ThermostatInstallation Manual22Wall display unit installationChoose a location for the wall display unit (WDU) that best represents the t

23Control unit installationInstall the control unit in a protected, convenient, indoor location near the HVAC system or in a service accessible area s

SmartCommand ThermostatInstallation Manual24HVAC system wiringWiring will differ depending on if your system is a standard gas or electric system or

25For standard HVAC systems, follow these guidelines:Single-stage systems. Use W1 for heating stage 1, and Y1 for cooling stage 1.Two-stage heating s

iiiContentsPreface. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SmartCommand ThermostatInstallation Manual26Heat pump HVAC system wiringFigure 19 shows the wiring diagram for a heat pump HVAC system. Wire colors ar

27For heat pump HVAC systems, follow these guidelines:Single-stage compressor systems. Use Y1 for stage 1 heating/cooling, and W1 for stage 2 heating

SmartCommand ThermostatInstallation Manual28Control unit connectionThe control unit requires 24 VAC power from the HVAC system it is controlling. Conn

29Serial communicationSerial communication includes:• RS485 com port• RS485 address• RS485 protocol• Thermostat network commandsRS485 com portThe ther

SmartCommand ThermostatInstallation Manual30RS485 protocolThe thermostat has a robust serial protocol. It is based on a simple ASCII message format as

31System checklistWe strongly recommend that you hook-up and run a simple bench test before installing the thermostat. Not only will this save you tim

SmartCommand ThermostatInstallation Manual32Serial communication testConnect the thermostat to a PC via an RS232/485 converter to a PC serial com port

33HVAC system testingIf you have difficulty with the HVAC system operation, you can do the following test to verify the HVAC system is operational.The

SmartCommand ThermostatInstallation Manual34Standard HVAC system quick testYou can do a quick test of the HVAC system by shorting across the appropria

35Control unit wiringFigure 21 shows the control unit wired to a wall display unit and the HVAC system. Wire colors are typical thermostat wiring colo

SmartCommand ThermostatInstallation ManualivSerial communication test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SmartCommand ThermostatInstallation Manual36DIP switch SW1 settingsWhite indicates a switch is in the On position. Set the DIP switches as follows:SW1

37Serial network command and variable listRefer to the Serial Communications Protocol Manual 150-00225 for format details.Network commandsTable 3 show

SmartCommand ThermostatInstallation Manual38Network variablesTable 4 shows the network variables for use with the system variable, SVx command.The sys

39Contacting technical supportFor assistance installing, operating, maintaining, and troubleshooting this product, refer to this document and any othe

SmartCommand ThermostatInstallation Manual40

1PrefaceThis is the GE SmartCommand Thermostat Installation Manual for model CC-SCSTAT. This document includes an overview of the product and detailed

SmartCommand ThermostatInstallation Manual2Product overviewThe SmartCommand thermostat (model CC-SCSTAT) provides typical thermostat functions as well

3WDU LEDsThe four LEDs on the WDU display various status information. The LEDs have dynamic on-screen labels that can change when you change screens.W

SmartCommand ThermostatInstallation Manual4Thermostat control screenThe Thermostat control screen (Figure 2) is the default display screen normally di

5Up and down buttonsThe Up and Down buttons adjust the setpoint temperature. Press Up to increase the setpoint value by one degree and press Down to d