Fujitsu UTB-UUB, Remote Controller manual Self-Diagnosis, Operating Tips

SELF-DIAGNOSIS

When the error indication “E:EE” is displayed, inspection of the air conditioning system is necessary. Please consult author- ized service personnel.

(1) Stop the air conditioner operation.

(2)	Faulty unit number
	(remote controller address)
		Error code

SU MO TU WE TH FR SA

SU MO TU WE TH FR SA

ex. Error display ex. Self-diagnosis check

Press the SET TEMPERATURE buttons simultaneously for 5 seconds or more to start the self-diagnosis.

(3) Press the SET TEMPERATURE buttons simultaneously for 5 seconds or more to stop the self-diagnosis.

OPERATING TIPS

Instructions related to heating are applicable to “HEAT PUMP MODELS” and “HEAT RECOVERY MODELS” only.

Cooling/heating priority (AIRSTAGETM

(VRF system Heat Pump model only))

•If another indoor unit in the same system is already oper- ating in the cooling mode or dry mode, heating mode set- tings cannot be performed.

•If another indoor unit in the same system is already oper- ating in the heating mode, cooling mode or dry mode set- tings cannot be performed.

Weekly timer

•Set different operating times for each day of the week.

•Set one or two operating spans (one or two ON times and one or two OFF times) per day.

•Set time to a resolution of 30 minutes.

•OFF time can be carried over to the subsequent day.

•Use the “DAY OFF” setting to cancel operation for any day of the coming week (one-time cancellation).

Setting restriction

When is displayed there are functions for which set- tings cannot be made.

Energy save

•The energy conservation mode (ENERGY SAVE) raises the set temperature slightly in the cooling mode and lowers the set temperature in the heating mode to economically control the operation of the unit.

•If you press the ENERGY SAVE button while the unit is in the timer mode, the unit will go into the conservation mode when the unit starts with the timer.

•If you turn off the air conditioner while in the conservation mode, the mode will be shut off.

•The temperature set on the remote controller will not change if the energy save mode is used.

During cooling operation	82 F
When the ENERGY SAVE is
pressed, the thermostat setting	80 F
is automatically raised 2 °F every
	60 min.
60 minutes, until the thermostat
is raised a total of 4 °F.	78 F

Day off

•Use the “DAY OFF” setting to switch off timed operation for a selected day in the coming week.

•This is a temporary, one-time setting. The “DAY OFF” set- ting is automatically cleared as soon as the specified day passes.

Temperature SET BACK timer

Use this timer function to change the set temperature in the operation times set for each day of the week.

This can be used together with other timer settings.

Automatic defrosting operation and oil

recovery operation

•During automatic defrosting operation and oil recovery op-

eration, will be displayed on the remote controller.

•Display when indoor and outdoor unit operation modes are different (for multi split type only)

will also be displayed on the remote controller if the operation modes of the indoor unit and outdoor unit are different when the indoor unit starts operating.

During heating operation

When the ENERGY SAVE is pressed, the thermostat setting is automatically lowered 2 °F every 30 minutes, until the ther- mostat is lowered a total of 8 °F.

Energy save

74 F

72 F

70 F

30 min.

68 F

30 min.

66 F

30 min.

Energy save

En-9