Johnson Controls YVAHP072B31S, Service Manual

Page: 658 / 1796

1-642
Service Manual
INSTALLATION
No. Condition Items to be Checked Action
1 System readings do not
change even after the air
conditioner operation by a
remote controller. What is set for update interval
in [Settings] > [Display] >
[Updating Interval]? The shortest interval that can be set is 15
seconds.
Is the S23 alarm on? A communication error has occurred on the
LAN between management the computer
and the adapter. Check if the LAN is properly
wired, and the power of hub and adapter.
Is the S20 alarm on? Free space is less than 1GB. Clear the
memory to more than a margin of 1GB of
free space or substitute the computer with
another with larger memory space.
Is the S21 alarm on? There is a data-writing failure on the
management computer hard drive.
Substitute this computer for a different one if
this error reoccurs.
Are any of the following alarms
tripped? A communication failure has been occurred
on the H-LINK. Check to see that the power
to the air conditioners is ON, and that wiring
and communication status is normal.
Are the RC group, Group and
Block correctly registered? Correct the RC group registry, Group and
Block according to the Installation and
Operation manual.
2 What is indicated on the control
display does not match what
is indicated on the remote
controller. Is only a single panel selected
on the monitoring window? The contents of any panel at upper left will
display if multiple panels are selected.
3 What is indicated on the
remote controller does not
match what is indicated on the
control display. Was the air conditioner
controlled by this system? If the air conditioner is controlled by this
system, it may take up to
¿ ve minutes for
actual status to comply with these results.
4 The window does not show
panel(s). Has the connection check
procedure been completed? Go to [Settings] > [Unit register] and check
connection.
Is the adapter connected? Go to [Settings] > [Network register] and
check connection.
5 All of the layout icons indicate
[?]. Has the connection check
procedure been completed? Go to [Settings] > [Unit register] and check
connection.
Is the adapter connected? Go to [Settings] > [Network register] and
check connection.
6 One or more layout icons are
[?]. Are there units, groups,
blocks, or facility units that are
not presently set ? Check if the panel set is present in [Settings]
> [Unit register] / [Group register] / [Block
register].
7 The displayed units: ([Group],
[Block], [Units]) are changed. Is any group in the tree
selected? Units in the group will be automatically
revealed when the group is selected in the
priority tree.
Is any of All, H-LINK, or block
selected in the tree? Groups in the block, H-LINK, or in All will
be automatically revealed when one of the
above is selected in the tree.
Is any alarm on? When an alarm is triggered, the priority tree
display will be automatically collapsed to [All],
and the connected H-LINK will be shown on
the display.
8 The priority tree display
changed. Is any alarm on? When an alarm is triggered, the priority tree
display will automatically collapsed into [All],
and the connected H-LINK will be shown
on the display. When in layout format, it will
switch automatically in master layout. Check
the alarm history.
Monitor (Monitoring)