Operation Tips; Selectable Modes (For Vrf System); Heat Recovery System; When Indoor Units Are Connected For Cooling Only In Heat Recovery System - Fujitsu UTY-RNRUZ5 Operation Manual

(3) Select the category about which you want to monitor.
(4) If you select [Sensor ID], input the ID of the monitoring
item on the next screen.
(3)
Advanced Selection
Indoor Unit Outdoor Unit
Operating Time Sensor ID
Back
Information on the selected
category is displayed. When
the screen has multiple pages,
they can be switched by
touching the [Next Page] or
[Previous Page].
When the [End] is touched, the display returns to the
"Advanced Selection" screen.

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 are connected for cooling
only in heat recovery system
(a) Refer to the following table:
Status
At any time
En-25
(4)
Sensor ID
-
0 0 0 0 1 1
0 1 2 3
CL
5 6 7 8
Cancel OK
Indoor Unit
Item
Return Air Temp.
Room Temp.
Heat ex. inlet temp.
Heat ex. middle temp.
Heat ex. outlet temp.
Discharge temp.
End
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:
Status
Cooling priority is set by
external input.
Heating priority is set by
4
external input.
9
4-1-4 Heat pump system
(a) Refer to the following table:
Page 1/ 3
[Value]
[18.0 ℃]
Status
[18.0 ℃]
[18.0 ℃]
Other indoor unit is in cool-
[18.0 ℃]
[18.0 ℃]
ing operation.
[18.0 ℃]
Other indoor unit is in dehu-
Next
Page
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:
Status
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
Selectable
Cool, Dry
Heat
Selectable
Cool, Dry
Cool, Dry
Heat
Heat
Selectable
Cool, Dry Custom Auto,
Heat, Fan
Heat Custom Auto,
Cool, Dry, Fan
(Example of screen)
Auto Off Timer
Setting changed.
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 cannot 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