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Operation
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You can use this controller for either redundancy control or cascade control of 2 or 3 units in cooling or heating mode
with the surveillance option by alarm and operation output signals. It is provided with the material for using with
Panasonic PACi, ECOi or ECO-G indoor units, however it can be used for any electrical activated device.
• If the first temperature threshold limit is either exceeded (during cool mode) or undershoot (during heat mode) an
alarm will be output in case this option has been activated.
• If the second temperature threshold limit is either exceeded (during cool mode) or undershoot (during heat
mode) a second unit will be started and optional an alarm will be output.
• If the third temperature threshold limit is either exceeded (during cool mode) or undershoot (during heat mode) a
third unit will be started and optional an alarm will be output.
• After cycling time has passed, the leading unit automatically is changed in order to achieve same operation time
on all units.
• In case of any unit stopping by an unit internal alarm, automatically the next unit is started and an alarm signal is
output.
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