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REMOTE THERMOSTAT OPERATION for CAC Ductless Split Air Handler
Choosing a Thermostat: EMI offers several remote thermostats that are com- patible with the Ductless split system air handlers. See the latest price list for a list of available thermostats. It is important to choose a thermostat that will match the equipment that you have selected. For single stage cooling or hearting choose a single stage Heat/Cool thermostat.
Selecting a Thermostat “By Oth- ers”: When selecting a thermostat other than those offered by EMI, it is important to choose a 24V thermostat that matches your application. EMI equipment is com- patible with most mercury bulb, digital or power stealing thermostats.
Cooling Only With Electric Heat or Hydronic Heat: Select a thermostat that is compatible with a cooling - electric heat system. The thermostat should have “R”, “Y”, “W” and “G” terminals. The thermo- stat may also have a “C” terminal.
Fan Operation: Some thermostats are equipped with an auto/on fan switch. When this switch is placed in the on po- sition the indoor fan will run continuous. When the switch is in the auto position the indoor fan will cycle with the call for heating or cooling.
Fan Purge: The indoor unit is equipped an electronic circuit board with a purge feature. After the room thermostat has been satisfied, the purge feature al- lows the indoor fan to remain on for an additional 60 seconds. This increases ef- ficiency by pulling the remaining energy from the unit.
Cooling Operation: The electronic circuit board of the indoor unit also has an
After connecting the thermostat to the unit place the system switch in cool mode. Ad- just the
Electric Heat Operation (Optional): Place the thermostat system switch in heat mode. Adjust the
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