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16) Heat pump backup setting

Enables or disables the heat pump backup instruction from the outdoor unit.

This function will be usable provided that the corresponding outdoor unit is connected.

Function number Setting value Setting description Factory setting

00 Disable ♦

01 Enable

17) Emergency heat for external output terminal

Enables or disables emergency heat input.

Function number Setting value Setting description Factory setting

00 Disable ♦

01 Enable

NOTE: When this function is used, IR Receiver Unit is necessary.

18) Heat insulation condition (building insulation)

Heat insulation conditions differ according to the installed environment.

"Standard insulation" (00) allows system to rapidly respond to the cooling or heating load changes.

"High insulation" (01) is when the heat insulation structure of the building is high and does not re-

quire system to rapidly respond to cooling or heating load changes.

When "High insulation" (01) is selected:

• Overheating (overcooling) is prevented at the start-up.

• All room-temperature control settings (Function 30, 31, 35, and 36) will reset to "No correction

0.0 °F (0.0 °C)".

Function number Setting value Setting description Factory setting

00 Standard insulation ♦

01 High insulation

NOTE: When changing Function 95, perform this setting before other room-temperature control

settings (Function 30, 31, 35, and 36). If Function 95 is not set first, room-temperature con-

trol settings (Function 30, 31, 35, and 36) will be reset and you must re-do them again.

1-1. Function settings by using remote controller - (05-9) - 1. Function settings

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Fujitsu ASUH24LPAS Service Manual

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