Fujitsu ASU7RLF1 Service Bulletin page 2

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FUJITSU GENERAL AMERICA, INC

353 Route West. Fairfield, NJ 07004

Ph: 973-575-0381 Fx: 973-836-0449

Em: ServiceHVAC@fujitsugeneral.com

Temperature Correction:

•Heat insulation condition (building insulation)

•Standard setting "00" allows system to rapidly respond to the cooling or heating load change when using room temperature sensor only.

•Heat insulation conditions differ according to the installed environment.

•Select "01" (High insulation) if the heat insulation structure of the building is high and does not require system to rapidly respond to cooling or heating load

changes.

•When "01" is selected, it prevents overheating (overcooling) at the start-up.

•When "01" is selected, all room temperature sensor and wire remote temp sensor settings will reset to factory setting.

•When "01" is selected, reset system (power off for two minutes then back on) and perform function settings 30, 31, 92, 93 to your desired temp control

level and reset power again.

•When "01" is selected, "standard setting "00" and no correction setting "01" are the same 0.0°F (0.0° C) Only when 95-01 is selected are these setting

values the same.

•The only function setting that will reset to factory settings when function 95-01 is selected are the temp correction settings 30,31, 92, 93.

•Confirm all function settings but do not re-enter function 95-00 or 95-01 as it will reset your temp correction settings.

•If you re-enter any of these two you must re-do all temp correction settings.

Function Number

(For Cooling)

* The standard setting temperature control changes depending on outside ambient temperature because it considers the outside heat load in relation with

outside ambient temperature which may require more cooling or more heating. Compared with function 95-01 correction 0.0° F(0.0° C), the room temperature

may possibly be higher in heating operation and lower in cooling operation if room heat load is lower than the capacity that can provide from system.

In case of slim duct type and floor/ceiling type models:

In floor console installations, select "01"

Room Temperature Control for Wired Remote Controller Sensor

•Depending on the installed environment, correction of the wired remote temperature sensor may be required.

•Select the appropriate control setting according to the installed environment.

•Function 42-01 (unlocks thermo sensor) and function 48-01 (switches sensing from indoor unit to wired remote) need to be set for wired remote controller

sensor setting. You must ensure that the thermo sensor icon is displayed on the remote screen.

Function Number

(For Cooling)

(For Heating)

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Setting Value

(For Heating)