Filter Sign Reset; Version; Operation Tips; Selectable Modes (For Vrf System) - Fujitsu UTY-RNRUZ2 Operating Manual

3-9-3 Filter Sign Reset

(1) Touch the [Filter Sign Reset] on the "Maintenance"
screen.
After the data transmission screen is displayed, the
"Filter Sign Reset" screen is displayed.
(2) When the [OK] is touched, the indoor unit filter sign
goes off and the display returns to the "Maintenance"
screen.
(1)
Maintenance
Setting
Error History
Status List
Filter Sign

Version

Reset
Back
3-9-4 Version
(1) Touch the [Version] on the "Maintenance" screen.
(2) "Version" screen is displayed.
When the [Back] is touched, the display returns to the
"Maintenance" screen.
(1)
Maintenance
Setting
Error History
Status List
Filter Sign
Version
Reset
Back

4 OPERATION TIPS

4-1 Selectable Modes (for VRF system)

There are restrictions on the selectable modes depending on
the system configuration and operation status.

4-1-1 Heat recovery system

(a) When single indoor unit connected to RB unit
All the modes can be selected.
(b) When a master indoor unit is set in an RB group, only
the mode selected at the master indoor unit (*1) can be
used. (*1: "Fan" cannot be selected at the indoor unit
including the master indoor unit .)
(c) When a master indoor unit is not set in the RB Group,
refer to the following table.
Status
Other indoor unit is in cool-
ing operation.
Other indoor unit is in dehu-
midifying operation.
Other indoor unit is in heat-
ing operation.
Other indoor unit is in anti
freeze operation.
4-1-2 When indoor units is connected for cooling
only in heat recovery system
(a) Refer to the following table:
Status
At any time
En-23
(2)
Filter Sign Reset
Page 1/ 3
The filter sign will be reset. OK?
Next
Cancel
Page
(2)
Version
Page 1/ 3
E000V00P00L00
Next
Back
Page
Selectable Not selectable
Cool, Dry Custom Auto,
Heat, Fan
Cool, Dry Custom Auto,
Heat, Fan
Heat Custom Auto,
Cool, Dry, Fan
Heat Custom Auto,
Cool, Dry, Fan
Selectable Not selectable
Custom auto, Heat
Cool, Dry, Fan

4-1-3 RB priority connection in heat recovery system

(a) For indoor units or RB groups by RB priority connec-
tion, refer to the following table:
Cooling priority is set by
external input.
Heating priority is set by
external input.

4-1-4 Heat pump system

(a) Refer to the following table:
Other indoor unit is in cool-
OK
ing operation.
Other indoor unit is in dehu-
midifying operation.
Other indoor unit is in heat-
ing operation.
Other indoor unit is in anti
freeze operation.
(b) When a master indoor unit is set in a refrigerant system,
only the mode selected at the master indoor unit (*2)
can be used. (*2: "Fan" cannot be selected at the indoor
unit including the master indoor unit .)
4-1-5 Outdoor unit priority connection in heat pump
system
(a) Refer to the following table:
Cooling priority is set by
external input.
Heating priority is set by
external input.
4-2 Verification screen when setting is
complete
The verification screen which is
displayed when a setting is com-
plete is displayed for approximately
3 seconds. When this screen is
touched, the display switches to
the next screen.

4-3 Settable temperature range

The settable temperature range by operation mode and
indoor unit setting is shown in the table below.
Cool/Dry
Heat
Custom Auto
Status Selectable
Cool, Dry
Heat
Status Selectable
Cool, Dry
Cool, Dry
Heat
Heat
Status Selectable
Cool, Dry
Heat
(Example of screen)
Auto Off Timer
64 to 88 °F (18 to 30 °C)
VRF system: 48 to 88 °F (10 to 30 °C)
Other system: 60 to 88 °F (16 to 30 °C)
Same as the above range, but there are
temperatures that can not be set due to the
deadband.
Not selectable
Custom Auto,
Heat, Fan
Custom Auto,
Cool, Dry, Fan
Not selectable
Custom Auto,
Heat, Fan
Custom Auto,
Heat, Fan
Custom Auto,
Cool, Dry, Fan
Custom Auto,
Cool, Dry, Fan
Not selectable
Custom Auto,
Heat, Fan
Custom Auto,
Cool, Dry, Fan
Setting changed.