Carrier Access Thermidistat Option 4ÐFan G On With W, Option 5ÐVariable-Speed ICM Blower

Page 4

3.Use up and down buttons to move between F and C on large display.

4.Press SET TIME/TEMP button again to flash upper small display for selection of another option, or press END to exit configuration mode.

Option 4ÐFan (G) On With W

This selection determines whether fan (G) output is to be ON or OFF when any W (furnace or strip heat) output is ON. Most furnaces and fan coils manage their own blowers and do not require separate G signal. For these applications, select OFF. Some auxiliary heaters require separate G signal to turn on blower. In this case, select ON. Factory default is OF (off).

TO SELECT:

1.Enter configuration mode if not already there. See Step 4 "To Enter Configuration Mode." Use up and down buttons to make small (now flashing) display indicate 4.

2.Press SET TIME/TEMP button once to flash large display.

3.Use up or down buttons to alternate between OF and ON on large display. Factory default is OF.

4.Press SET TIME/TEMP button again to flash upper small display for selection of another option, or press END to exit configuration mode.

Option 5ÐVariable-Speed (ICM) Blower

If furnace or fan coil contains a variable-speed (ICM) blower, set this option to ON. For normal (PSC) blowers, set to OF. This selection enables system to use special features available only in units with an ICM blower. Factory default is OF (off).

TO SELECT:

1.Enter configuration mode if not already there. See Step 4 "To Enter Configuration Mode." Use up and down buttons to make small (now flashing) display indicate 5.

2.Press SET TIME/TEMP button once to flash large display.

3.Use up or down buttons to alternate between OF and ON on large display. Factory default is OF.

4.Press SET TIME/TEMP button again to flash upper small display for selection of another option, or press END to exit configuration mode.

Option 6ÐCooling Lockout Below 55°F

This option disables cooling when outdoor temperature is below 55°F. It requires an outdoor temperature sensor. Set to OF to allow cooling below 55°F. Set to ON to prevent cooling below 55°F. Factory default is OF (off).

TO SELECT:

1.Enter configuration mode if not already there. See Step 4 "To Enter Configuration Mode." Use up and down buttons to make small (now flashing) display indicate 6.

2.Press SET TIME/TEMP button once to flash large display.

3.Use up or down buttons to alternate between OF and ON on large display. Factory default is OF.

4.Press SET TIME/TEMP button again to flash upper small display for selection of another option, or press END to exit configuration mode.

Option 7ÐVariable-Speed Superdehumidify

This option requires prior selection of variable-speed (ICM) blower (Option 5). When selected, this option operates blower at further reduced airflow from that of normal dehumidification when there is a dehumidification demand without a cooling demand, achieving maximum humidity removal with minimum cooling. It is done by supplying blower with a Y signal and no G signal on a

call for cooling. Not all products with ICM blowers have this feature. Check Installation Instructions for ICM air handler used. Select OF for normal operation (Y and G supplied on a cooling call). Select ON for super dehumidification (Y with no G on a dehumidify only call). Factory default is OF (off).

TO SELECT:

1.Enter configuration mode if not already there. See Step 4 "To Enter Configuration Mode." Use up and down buttons to make small (now flashing) display indicate 7.

2.Press SET TIME/TEMP button once to flash large display.

3.Use up or down buttons to alternate between OF and ON on large display. Factory default is OF.

4.Press SET TIME/TEMP button again to flash upper small display for selection of another option, or press END to exit configuration mode.

Option 8ÐAuxiliary Heat Lockout Setting

This option requires prior selection of heat pump (DIP switch 1-- ON). It allows selection of an outdoor temperature of 5o through 55°F. (or equivalent values in C), or OF (off). Auxiliary heat (furnace in Dual Fuel applications) is prevented from operating for outdoor temperatures above selected temperature. If OF (off) is selected, auxiliary heat (furnace if Dual Fuel) operation is allowed at all outdoor temperatures. If selected, emergency heat (EHEAT) overrides this feature. Factory default is OF (off). This setting can only be equal to or above the setting choice made for Option 11. Moving this setting lower may 'push' Option 11 setting down- ward.

TO SELECT:

1.Enter configuration mode if not already there. See Step 4 "To Enter Configuration Mode." Use up and down buttons to make small (now flashing) display indicate 8.

2.Press SET TIME/TEMP button once to flash large display.

3.Use up or down buttons to move between OF, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, or 55 on large display. Factory default is OF.

4.Press SET TIME/TEMP button again to flash upper small display for selection of another option, or press END to exit configuration mode.

Option 9ÐIntelligent Heat Staging

This option requires prior selection of single-speed heat pump (DIP switch 1ÐON, DIP switch 2ÐOF). It provides 3 stages of electric heat from W1 and W2 by sequencing W1 only, then W2 only, then both W1 and W2. See FK or FV Series Fan Coil Installation Instructions for further information. For 3-stage heat, select ON. For normal 1- or 2-stage heat, select OF. Factory default is OF (off).

TO SELECT:

1.Enter configuration mode if not already there. See Step 4 "To Enter Configuration Mode." Use up and down buttons to make small (now flashing) display indicate 9.

2.Press SET TIME/TEMP button once to flash large display.

3.Use up or down buttons to alternate between OF and ON on large display. Factory default is OF.

4.Press SET TIME/TEMP button again to flash upper small display for selection of another option, or press END to exit configuration mode.

4

Page 3 Page 5
Image 4
Page 3 Page 5
Contents Safety Considerations Installation ConsiderationsIndex IntroductionInstallation ÐSet DIP SwitchesÐInstall Thermidistat Control ÐThermidistat Control LocationÐSet Thermidistat Control Configuration Option 1ÐAnticipator AdjustmentOption 2ÐClean Filter Timer Option 3ÐEnglish/MetricOption 8ÐAuxiliary Heat Lockout Setting Option 4ÐFan G On With WOption 5ÐVariable-Speed ICM Blower Option 6ÐCooling Lockout Below 55FOption 11ÐBalance Point Setting ÐW1 / W2 OutputsOption 10ÐDual Fuel Equipment Option 12ÐDefrost Heat SelectOption 13ÐRoom Temperature Offset Adjust Option 14ÐHeat/Cool Dead Band AdjustmentOption 15ÐEnable Auto Mode Option 16ÐEnable Super Comfort Heat ModeOption 17ÐEnable Non-Programmable Operation Redefinition of ButtonsÐSystem Start-Up and Checkout To Test FANÐEnergy Star Default Schedule ÐFinal SettingsHumidity Control Features ÐEquipment OutputsÐHumidification Selections Additional Humidify CommentsTo Select Dehumidification Between NORMAL, Cool TO, and OFF Superdehumidify With Cool to DehumidifyÐDehumidification Selections Dehumidify Output and Equipment ConnectionsVacation Vacation Set PointsVacation Dehumidification Thermidistat Control TroubleshootingOperational Information Wakeday Thermidistat Control Configuration RecordEvesleep

Thermidistat specifications

The Carrier Access Thermidistat is an advanced thermostat designed to optimize indoor climate control, providing both comfort and energy efficiency. As part of Carrier's commitment to innovation in heating, ventilation, and air conditioning (HVAC), the Access Thermidistat combines modern technology with user-friendly features.

One of the standout features of the Carrier Access Thermidistat is its Wi-Fi connectivity. This allows users to control their home environment remotely via a smartphone, tablet, or computer. With the Carrier mobile app, users can adjust temperature settings, schedule heating and cooling cycles, and monitor energy usage from anywhere. This convenient feature not only enhances user control but also helps in managing energy consumption more effectively.

The Access Thermidistat is equipped with advanced algorithmic technology, which continuously learns user preferences and adapts accordingly. This smart technology assesses factors such as occupancy patterns and external weather conditions, optimizing the HVAC system’s performance to create a personalized comfort experience. By doing so, it reduces energy waste and lowers utility bills, making it an economical choice for homeowners.

In terms of compatibility, the Carrier Access Thermidistat works seamlessly with a wide range of heating and cooling systems, including central air units, heat pumps, and zone control systems. This versatility makes it an ideal solution for both new installations and retrofitting existing systems, ensuring homeowners can easily transition to a smarter climate control solution.

Another notable characteristic of the Access Thermidistat is its intuitive touchscreen interface. Users can easily navigate the menu to adjust settings, create schedules, and view energy reports. The display also provides real-time feedback on current indoor conditions, including temperature and humidity levels, which helps users make informed decisions about their HVAC usage.

Moreover, the Carrier Access Thermidistat features multiple scheduling options, enabling homeowners to set specific temperature settings for different times of the day or days of the week. This flexibility ensures that energy is conserved when the house is unoccupied while maintaining comfort during peak living hours.

Safety and reliability are also paramount in the design of the Access Thermidistat. It incorporates features such as energy-saving modes and alerts for system malfunctions or maintenance needs, ensuring that users are always informed about their HVAC system's performance.

In summary, the Carrier Access Thermidistat is a cutting-edge solution that combines connectivity, automation, and user-centric design to enhance the overall HVAC experience. By integrating smart technology with practical features, it offers a superior way to manage indoor climates efficiently and conveniently.
Top Page Image Contents