Lead Lag Setting - Fujitsu UTY-RNRYZ5 Operation Manual

3-9-8 Lead Lag Setting

This is a simple function to keep the fixed room temperature with
multiple indoor units. If you need a precise temperature control,
such as maintaining a server room, take other appropriate mea-
sures. Even if information devices or data are damaged by using
this function, we do not compensate them.
When enabling the Lead lag operation, the indoor units in the
RC Group take turns stopping 1 or 2 at a time.
NOTES
• Make sure to connect the indoor units to the power sup-
ply at midnight (12:00 AM). The indoor units switch the
operation/stop at this time.
• When using Lead lag operation, disable the Human sen-
sor. If it is enabled, the air conditioners may stop in the
absence and the room temperature may rise. (Refer to
[3-6-5 Human Sensor Setting]".)
[Check before the setting]
Preparation for Lead lag operation
Make sure to meet all the following conditions. Otherwise,
[Lead Lag setting] does not appear on the remote controller
display.
Condition
Connect 2 or more indoor

units.
Do not connect other remote

controller or converter.
Set this unit to the primary

remote controller.
Activate the Auto restart

function of the indoor unit.
Activate the remote control-

ler sensor.
When enabling the Lead lag operation, the following func-
tions or settings are deactivated.
- Timer settings
- Set temp. auto return setting
Setting procedure
(1) Touch the [Lead Lag Setting]
on the "Initial Setting" screen.
"Lead Lag Setting" screen is
shown.
(2) The screen has 2 pages which are switched by touching
the [Next page] or [Previous Page].
Lead Lag Setting
Enable/Disable
Cycle
Over Lap Time
Back
En-21
CAUTION
Reference for setting
Consult authorized service
personnel.
Consult authorized service
personnel.
Consult authorized service
personnel.
Refer to the operation manual
of the indoor unit.
Refer to "3-9-5 RC Sensor
Setting".
Initial Setting
R.C. Master/
Slave Setting
Lead Lag
Setting
Previous
Back
Page
Lead Lag Setting
Page 1/ 2
[Enable] Backup Units
[7 Day] Lag Operation
[10min.]
Next Previous
Back
Page Page
Cycle setting
(3) Touch the [Cycle] on the "Lead Lag" screen.
(4) "Cycle" screen is shown. Set the term by touching [ ] or
[ ]. You can set the term "TEST" or from 1 day to 7
days in 1-day increments.
(3)
Lead Lag Setting
Enable/Disable
Cycle
Over Lap Time
When touching [OK], the display returns to the "Lead
Lag" screen.
NOTES
• Each time the set term passes, the indoor units
switch the operation/stop following the Lead lag
setting.
• When setting "TEST" and enabling the Lead lag op-
eration, the indoor units switch the operation/stop
each time you press the [On/Off] button.
Overlap time setting
(5) Touch the [Over Lap Time] on the "Lead Lag" screen.
(6) "Over Lap Time" screen is displayed. Set the overlap
time by touching [ ] or [ ]. The overlap time can be set
"None" or from 10 minutes to 30 minutes in 10 minutes
increments.
When selecting "None", the Lead lag operation has no
overlap time.
(5)
Lead Lag Setting
Enable/Disable
Cycle
Over Lap Time
When the [OK] is touched, the display returns to the "Lead
Lag" screen.
Backup Units setting
Page 3/ 3
Select the number of indoor units which stop simultaneously.
I.U. Display
The current setting is shown on the right side of [Backup
Number Setting
Units].
The denominator means the number of the connected indoor
units and the numerator means the number of the stopped
indoor unit simultaneously.
(7) Touch the [Backup Units] on the "Lead Lag" screen.
(8) "Backup Units" screen is displayed. Touch the [2 Units]
or [1 Unit].
Page 2/ 2
[2/16]
[Enable] NOTE
If 2 indoor units are connected, the setting is fixed to
"1 Unit".
(7)
Lead Lag Setting
Backup Units
Lag Operation
When touching [OK], the display returns to the "Lead Lag"
screen.
Page 1/ 2
[Enable]
[7 Day]
[10min.]
Next
Back
Page
Page 1/ 2
[Enable]
[7 Day]
[10min.]
Next
Back
Page
Page 2/ 2
[2/16]
[Enable]
Previous
Back
Page
(4)
Cycle
7
Day
Cancel OK
(6)
Over Lap Time
10
min.
Cancel OK
(8)
Backup Units
2 Units
1 Unit
Cancel OK