Cooling and heating bandwidth temperature control apparatus with central controllability

A cooling and heating bandwidth temperature control apparatus, comprising:

• a cooling and heating temperature control apparatus;
• a first temperature sensor for detecting a temperature;
• first and second lines for connecting the first temperature sensor to the cooling and heating temperature control apparatus;
• a first relay for determining a connection between first cut contacts of the first line and second cut contacts of the second line;
• a second relay for determining a connection to a high temperature control resistor 18 or to a low temperature control resistor;
• and
• a relay drive circuit for driving the first and second relays.

A cooling and heating bandwidth temperature control apparatus, comprising:

• a cooling and heating temperature control apparatus;
• a first temperature sensor for detecting a temperature;
• first and second lines for connecting the first temperature sensor to the cooling and heating temperature control apparatus;
• a first relay for determining a connection between first cut contacts of the first line and second cut contacts of the second line;
• a second relay for determining a connection to a high temperature control resistor or to a low temperature control resistor;
• the first relay comprising a first switch section of the first relay and a second switch section of the first relay;
• the second relay comprising a first switch section of the second relay and a second switch section of the second relay;
• a first relay control electromagnet for directing the first switch section of the first relay and the second switch section of the first relay to a first contact or a second contact;
• a second relay control electromagnet for directing the first switch sections of the second relay and the second switch section of the second relay to the first contact or the second contact;
• a relay drive circuit for driving the first and second relays;
• a high temperature control resistor for setting a high temperature;
• and
• a low temperature control resistor for setting a low temperature,
• wherein after receiving a set reference temperature from an external communication circuit, an actual temperature is controlled between the high temperature and the reference temperature, or the actual temperature is controlled between the low temperature and the reference temperature.

A cooling and heating bandwidth temperature control apparatus, comprising:

• a cooling and heating temperature control apparatus;
• a first temperature sensor for detecting a temperature;
• first and second lines for connecting the first temperature sensor to the cooling and heating temperature control apparatus;
• a first relay for determining a connection between first cut contacts of the first line and second cut contacts of the second line;
• and
• a second relay for determining a connection to a high temperature control resistor or to a low temperature control resistor,
• wherein the first relay comprises a first switch section of the first relay and a second switch section of the first relay, and the second relay comprises a first switch section of the second relay and a second switch section of the second relay.