Heat/Cool Switch (Optional Pcb) - Panasonic WH-SXC09H3E8 Service Manual

12.25 Heat/Cool Switch (Optional PCB)

Purpose:
User can switch the running mode from heat to cool or cool to heat through external installed Heat/Cool
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switch. This kind of heat / cool switch may built in inside the field supply room remocon as well.
Control contents:
Heat/Cool Switch can only be set when Cool Function is "enable" at custom menu setting, & Extension PCB
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select "YES" & Zone 1 not set "Pool" condition.
This heat/cool switch control will be activate only when installer set the Heat/Cool Switch "USE" through
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remocon.
Once the Heat/Cool Switch Set "USE", remocon will check indoor send Signal to judge the option of mode
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select.
a) When Heat/Cool Switch Contact Open : Remocon only can select Heat Mode, or Heat + Tank Mode, or
Tank Mode
b) When Heat/Cool Switch Contact Close : Remocon only can select Cool Mode, or Cool + Tank Mode, or
Tank Mode
Operation ON/OFF will depend on remocon request.
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When Heat Mode is running with Contact Open, user change this setting to contact close, indoor will this
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signal to remocon judge and change mode to cool and send back to indoor. And it is same as from cool
mode change to heat mode.
* This switch have higher priority, remocon follow indoor send signal when control activated.
* There is no effect to the operation when the mode running is only Tank Mode.
(Weekly Timer are ignored and cannot be set during Heat / Cool Switch is "Enable" Condition.)
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