If the discharge pressure exceeds

corresponding signal from the ambient thermostat to satisfy the cooling demand. 6) When the unit stops at the end of an operating cycle, or through a power failure, the logic module will not allow it to start up again until 5 minutes have elapsed. This is to protect the compressor by allowing the operating voltages to even up. 7) If the discharge pressure exceeds 28 kg/cm2 , or the discharge temperature is over 130°C, the logic module will switch off the unit, leaving the system in lockout. 8) To re-set after a lock-out, turn off the power supply to the unit. The system will re-set and the unit will start up after 5 minutes. Winter cycle: Thermostat in HEAT position 1) The 4-way valve is deactivated, allowing the position for the heating circuit, which means that the indoor coil acts as condenser and the outdoor one as evaporator. 2) If the fan operating mode in the ambient thermostat is in the FAN ON position, the contactor is activated and the fan functions continuously. 3) With the logic module timing, the unit will start up after 5 minutes. 4) When the first stage of the thermostat connects, the contactor is activated and the compressor starts up. If the operating mode of the fan is "normal", the contactor is activated through the thermostat's heating circuit and the fan starts up. 5) The unit will function intermittently in response to the appropriate signals from the ambient thermostat to satisfy the demand for heating. 6) If the unit stops, after an operating cycle, or through a power failure, the logic module will not allow it to start up again until 5 minutes have elapsed. This is to protect the compressor by allowing the operating voltages to even up. 7) If the discharge pressure exceeds 28 kg/cm2 , or the discharge pressure is over 130°C, the logic module will stop the unit, leaving the system in lockout. 8) To re-set after a lock-out, switch off the power to the unit. The system will re-set and the unit start up after 5 minutes. 9) The auxiliary heater is activated when the auxiliary heating stage of the thermostat is connected. The logic module allows the indoor auxiliary heater to function if the outdoor temperature is below the balance point. If the outdoor temperature is above that set as the balance point, the indoor heater does not function. 10) The emergency heater (complementary) is connected when the outdoor temperature is lower than that preselected as the operating limit (-15°C, logic module), and the ambient thermostat demands the second heating stage.