Replacing Old Thermostat - Control M6004 Instruction Manual

Installation

Replacing Old Thermostat

Prior to replacing an old thermostat please test the system to make sure your heating and air conditioning systems
are in working order. If there is any concern please consult a specialist.
WARNING: Many old thermostats contain MERCURY and should be removed with caution and disposed of as a
HAZARDOUS WASTE. Consult your local authorities or Fire Department.
Note: Do not operate the cooling system when outside temperature is below 10ºC (50ºF) to avoid damaging the
compressor.
• Test the system to make sure that your heating and cooling are working properly before installation. If either
does not work, contact your local heating/air-conditioning dealer to fix the problem before installation.
• TURN OFF POWER to system at the furnace, or at the fuse/circuit breaker panel.
• Carefully unpack your new thermostat and mounting place; save packaging of screws, instructions and receipt.
TO AVOID FIRE, SHOCK OR DEATH, SHUT OFF POWER
SUPPLY AT THE CIRCUIT BREAKER OR FUSE AND TEST
THAT THE POWER IS OFF BEFORE WIRING.
6