LEGRAND VANTAGE CC-STAT - Troubleshooting

28
No: IS-0685 – Rev. 2
THERMOSTAT FEATURES
TROUBLESHOOTING: DISPLAY IS BLANK
TROUBLESHOOTING: TEMPERATURE SETTINGS DO NOT CHANGE
TROUBLESHOOTING: HEATING SYSTEM DOES NOT RESPOND
TROUBLESHOOTING: COOLING SYSTEM DOES NOT RESPOND
TROUBLESHOOTING: FAN DOES NOT TURN ON IN A HEAT CELL
• Large touch screen with adjustable backlight
• Message center provides feedback and instructions
• Thermostat can be removed from the wall for easy
programming (batteries must be installed)
• Front battery door access for fast, easy replacement
• Displays room temperature, room humidity, temperature
setting, and optional outdoor temperature
• Air lter, humidier, dehumidier, and HVAC service
indicators
• Programmable fan control with fan circulation mode
• Check circuit breaker and reset* if necessary.
• Make sure power switch at heating & cooling system is on.
• Make sure furnace door is closed securely.
*CAUTION: Thermostat power must be cycled after a reset for the CC-WLINT or CC-RLINT stations to operate correctly.
Make sure heating and cooling temperatures are set to acceptable ranges:
• Heat: 40° to 90°F (4° to 32°C)
• Cool: 50° to 99°F (10° to 37°C)
i.e.: “HEATING” appears on screen
• Check for 24VAC at the equipment on the secondary side of the transformer between power and common. If voltage is not
present, check the heating equipment to nd the cause of the problem.
• Check for 24VAC between the heat terminal (W) and the transformer common. If 24VAC is present, the thermostat is functional.
Check the heating equipment to nd the cause of the problem.
• Check for loose or broken wires between the thermostat and the heating equipment.
i.e.: “COOLING” appears on screen
• Check for 24VAC at the equipment on the secondary side of the transformer between power and common. If voltage is not
present, check the cooling equipment to nd the cause of the problem.
• Check for 24VAC between the cooling terminal (Y) and the transformer common. If 24VAC is present, the thermostat is
functional. Check the cooling system to nd the cause of the problem.
• Check for loose or broken wires between the thermostat and the cooling equipment.
• Check System Setting 09 (Fan Control), to make sure the fan control is properly set to match the type of system (see page 9).
• Easy to use temperature control can override program
schedule at any time
• Progressive recovery ensures proper temperature at the
start of a program event
• Built in compressor protection prevents damage to your
equipment
• Battery back-up
• System test mode
• Universal system compatibility
• Congurable to control a humidier or dehumidier
TROUBLESHOOTING