User manual CARRIER ROOM CONTROLLER NHI-WALL FAMILY

[. . . ] Power up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Normal operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] · Diagnostics: Detects the fault of air sensor in the Room Controller. "A1" shown on the screen indicates this anomaly. up down A B A = Display readout B = Increase temperature / change louvre setting button C = Decrease temperature / change louvre setting button D = Fan selection button E = Mode selection button "UP" and "DOWN" buttons Buttons for raising or lowering the temperature or for selecting the "AUTO" or "SWING" louver mode. MODE Button for operation mode selection. ED C FAN Button for fan or louvre selection. GB - 2 Room Controller Normal operation Power up All segments of the LCD should be energized for five seconds. The mode, fan, louver, desired temperature and configuration information should be read from the EEPROM. If the EEPROM values are not valid, the following should be used as defaults. Operating Mode Fan Speed Desired Temperature °F o °C Louver Room Thermistor Override Cooling only vs Heat/Cool Remote = = = = = = = AUTO AUTO 22°C C AUTO OFF Heat/Cool ENGLISH AUTO, HEAT, COOL and DRY Modes: ICONS Energized: · Operation Mode ICON. · Room Temperature if configured for Room Thermistor Override (operated by Room Controller), otherwise user selected temperature with the "SET TEMP" Icon. · FAN/LOUVER Icon with the user selected Fan and Louver settings. Buttons available: · All Buttons are available. AUTO Automatic operation NOTE: The compressor and electric heater must be off for at least 30 Minutes, this time being necessary to pass from Heating to Cooling, or Cooling to Heating. This will prevent the system from switching between Heating and Cooling continuously. Example of normal operation When switched on the control display appears. Setting mode operation "MODE" button Pressing the "MODE" button will cause the mode to change. The "MODE" button must be released and then pressed again in order to change to the next mode. The active mode will always be lit in normal operation. Available modes to select are: Heat/Cool Remote: OFF, COOL, DRY, FAN ONLY, AUTO, HEAT COOL Cooling operation Cooling Only Remote: OFF, COOL, DRY and FAN ONLY When the "MODE" button is not pressed for 15 seconds, the next press will always switch the mode to OFF. OFF Mode: ICONS Energized: · OFF Mode · Room Temperature if configured for Room Thermistor Override, otherwise nothing Buttons available: · "MODE" button DRY Drying operation. HEAT Heating operation. GB - 3 Room Controller Normal operation FAN ONLY Mode: ICONS Energized: · Room Temperature if configured for Room Thermistor Override (operated by Room Controller), otherwise nothing. · FAN/LOUVER Icon with the user selected Fan and Louver settings. Buttons available: · "MODE" and "FAN" buttons are available. [. . . ] The "FAN" SPEED button must be pressed and then released to reach the desired speed (Low, Medium, High or Auto). The icon on the display indicates that change has occurred. :SWING Louvres swing continuously. GB - 4 L010125H77 - 0603 Via R. [. . . ]