Honeywell AC-140-7, AC-220-7 manual Differential or Throttling Range, Sensor, Heat/Cool

Page 23

1. PROGRAMMING

T775A/B/M SERIES 2000 CONTROLLER

PROGRAM

RELAY 1

DIFFRNTL

MENU

PROGRAM

RELAY 1

DIFFRNTL

20 oF

 

ENTER

 

DIFFERENTIAL

 

FOR

 

RELAY 1

M24495

1.2.2. DIFFERENTIAL or THROTTLING RANGE

Differential is used for Relay outputs and Throttling Range is used for Modulating outputs.

1.

From the menu, use the S and T buttons to high-

 

light THROT RNG or DIFFERNTL.

2.

Press the X button to display the throttling range

 

value.

3.

Use the S and T buttons to increase/decrease the

 

desired value.

 

Default: 20°F (-6.6°C)

 

Range: 1°F to 150°F (1°C to 66°C).

4.

Press the X button to accept the value and display

 

the next option.

Fig. 29. Program - Differential or Throttling Range.

In heating mode, the Differential is below the setpoint. The relay de-energizes when the temperature rises to the setpoint. As the temperature drops to the setpoint minus the Differential, the relay energizes.

In cooling mode, the Differential is above the setpoint. The relay de-energizes when the temperature falls to the setpoint. As the temperature rises to the setpoint plus the Differential, the relay energizes.

The Throttling Range brackets the setpoint setting, e.g., if the setpoint is 72°F and the throttling range is 10°F, then the effective throttling temperature range is 67°F to 77°F. This applies to both modulating outputs and floating outputs.

PROGRAM

RELAY 1

SENSOR

MENU

PROGRAM

RELAY 1

SENSOR

SENSOR A

SENSOR B

SELECT

 

SENSOR FOR

 

RELAY 1

M24496

 

1.2.3. SENSOR

1.From the menu, use the S and T buttons to high- light SENSOR.

2.Press the X button to display the sensor selections.

3.Use the S and T buttons to select Sensor A or B.

4.Press the X button to accept the highlighted sensor and display the next option.

Fig. 30. Program - Sensor.

PROGRAM

RELAY 1

HEAT/COOL

MENU

PROGRAM

RELAY 1

HEAT/COOL

HEAT

COOL

SELECT

HEAT/COOL

FOR

RELAY 1

1.2.4. HEAT/COOL

1.From the menu, use the S and T buttons to high- light HEAT/COOL.

Default: HEAT

2.Press the X button to display the heat and cool selections.

3.Use the S and T buttons to select Heat or Cool.

4.Press the X button to accept the highlighted selec- tion and display the next option.

M24497

Fig. 31. Program - Heat/Cool.

15

62-0254–03

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Contents Section Introduction FP-4 Freeze Protection KITSection InstallationInstalling the Conduit Control BOX Component Layout and Wiring Diagram Section InstallationOperation Setting the ControllerTroubleshooting Procedures Section TroubleshootingReplacement Parts Section Replacement PartsPER VAN AIR Terms and Conditions of Sale Section WarrantyProduct Description Accessories Temperature SensorsaController Dimensions Mounting Before InstallationInstallation and Setup WiringMultiple Parallel Sensors Wiring Connections AccessTemperature Sensor Wiring Temperature Sensor Wire Type and SizeController Wiring Method Controller WiringConnection Terminal Label Description Sensors Wiring Applications ExamplesController Wiring Details Description of Wiring Terminal Connections Terminal LabelWiring for four-stage control 24 Vac input 24 Vac load Wiring for ML7984 valve actuator Wiring for three Series 90 Modutrol Motors Foota MΩ/ft Rating 200 ft 500 ft 000 ft Power LossTemperature Sensor Calibration CheckoutHome Screen Using the LCD Panel InterfaceInterface Overview Programming, Scheduling, and Summary Menus Accessing the MenusUsing the Menus Setup MenuSetpoint and Differential Heating Mode Setpoint and DifferentialCooling Mode Setpoint and Differential ProgrammingProgram Menu for Outputs Entering Program ModeProgramming the T775A/B/M Controller HEAT/COOL Differential or Throttling RangeSensor Program Next Output Mod or Relay Exiting Program ModeSetback Setting up the Sensors Setup Advanced OptionsSetup Procedure Entering Setup ModeLabel the sensor input Sensor aUnits F or C Calibrate the sensorLabel Exit Sensor a SetupSensor B CalibrateLimit Sensor B only HI Limit or LOW Limit Sensor B onlyThrottling Range Sensor B only Setting up the OutputsSetting up the Modulating Outputs Integral Type of output signalMIN OUT % Exit ScheduleUSE Sched OptionsShow RT show run time hours MIN OFF minimum off time for all relaysDI Options digital input options Type standard or floating Exit Options SetupSetting up the Relays Floating Relay Menu Derivative modulating/floating relay only Reset RT run time hoursSetup Outputs Relay Exit Exit Setup ModeCreating a Schedule Entering Schedule ModeScheduling Daylight daylight saving time SET TimeSET Date 1. E1 Setpt setpoint for event Setting Individual SchedulesMon-Fri Schedule Defaults 3. E2 Setpoint setpoint for event Exiting Scheduling ModeExit exit from selected time period settings 2. E1 Time time for eventDiagnostic Messages TroubleshootingErrors and Diagnostics Error MessageFCC Compliance Statement Safety ComplianceEmissions Compliance Immunity ComplianceDOC T775A/B/M Series 2000 Controller

AC-220-7, AC-140-7 specifications

The Honeywell AC-140-7 and AC-220-7 are advanced air conditioning units that exemplify modern air conditioning technology, delivering both comfort and efficiency. Designed for varying space requirements, these units cater to both residential and light commercial settings, providing versatile solutions for climate control.

The AC-140-7 model is particularly known for its compact design, making it suitable for smaller spaces without sacrificing performance. It delivers an impressive cooling output, effectively maintaining comfortable indoor temperatures even during the hottest months. The system utilizes a high-efficiency compressor that operates quietly, ensuring minimal disruption to daily activities. Additionally, the AC-140-7 features an advanced air filtration system that helps to improve indoor air quality by capturing dust, allergens, and other particulates.

In contrast, the AC-220-7 is designed for larger spaces, providing robust cooling capacity. It incorporates multiple fan speeds and advanced thermostatic controls, allowing users to customize their cooling experience according to their preferences and requirements. One of the standout characteristics of the AC-220-7 is its energy efficiency, with a high Seasonal Energy Efficiency Ratio (SEER) rating, which is crucial for reducing energy costs while maintaining optimal performance.

Both models are equipped with state-of-the-art technologies, including smart diagnostic features that help users troubleshoot issues quickly and efficiently. This capability not only enhances the user experience but also prolongs the lifespan of the units. Furthermore, these units are easy to install and maintain, with accessible components for service and cleaning.

A critical characteristic of the Honeywell AC-140-7 and AC-220-7 is their environmentally friendly refrigerants, which align with modern environmental regulations. This aspect makes them a responsible choice for environmentally conscious consumers.

In summary, the Honeywell AC-140-7 and AC-220-7 units are excellent examples of innovation in air conditioning solutions. With their combination of efficiency, advanced features, and quiet operation, these models represent a significant investment in comfort and sustainability for any space. Whether cooling a small room or a larger area, Honeywell’s engineering excellence ensures that users enjoy effective climate control tailored to their needs.
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