Unit Operation Related; The Schedule Timer Does Not Work Properly; Unit Does Not Stop (Operate) Even When Batch Stop (Startup) Input Is On - Panasonic CZ-256ESMC3 Technical Data Manual

Fault diagnosis

3. Unit operation related

3-1. The Schedule Timer does not work properly

1. Intelligent 1-1 Have you definitely set [Oper./Status] → [Set schedule]?
Controller
1-2 Is the timer selected for the indoor unit?
1-3 Is that day set as an area holiday or timer special day for that
indoor unit?
* Area holidays and timer special days work with a dedicated timer
1-4 Is the current date / time setting correct?
1-5 Did the following happen at the time of the timer?
1-6 Is it set so that the units in one O/D unit system are in different
cooling / warming modes?
1-7 Depending on the model, are the settings invalid?
1-8 Are settings applied that change directly from cooling (dry) to
heating (or vice versa)?
1-9 Is the timer also used for other equipment (remote controller,
Schedule Timer, etc.)?
1-10 Set a timer for [OFF] or [Fan] for one minute before (for example) switching the cooling /
heating mode.

3-2. Unit does not stop (operate) even when Batch stop (startup) input is ON

1. Intelligent Controller 1-1
or
communication
1-2
adaptor
1-3
1-4
1-5
1-6
· Power outage of indoor unit
· Power outage of Intelligent Controller
· Power outage of communication adaptor
· Communication error with air conditioner due to other causes
(Not allowed because of mismatch of heating and cooling)
(Example: Trying to set a cooling-only model to heating
operation)
Have you definitely set [System Settings] → [Event Control]? Yes
Is the connection of Batch stop (startup) input correct?
Intelligent Controller
27P terminal board
20, 21 (DI1)
20, 22 (DI2)
20, 23 (DI3)
Is there a mistake in the connection, or a disconnection or
open circuit?
When the wiring of the Batch stop (startup) input signal is
removed from the terminal board and the Batch stop (startup)
input part of the terminal board is short-circuited by using an
appropriate wire, or broken piece of lead wire, does the unit
turn OFF (ON) correctly?
Is the Batch stop (startup) input signal input with no voltage
"a" contact or a static signal?
On the [Settings] → [System Settings] → [I/D unit settings]
screen, 1 is there no check mark in the [Register] field, or is
it 2 [Not managed]?
Replace MAIN board of communication adaptor connecting bulk input signal.
If only an Intelligent Controller is used, replace the Intelligent Controller.
3. Unit operation related
Communication Adaptor
20P terminal board
16, 17 (DI1)
16, 18 (DI2)
16, 19 (DI3)
ー 12 ー
Yes 1-2
No Apply settings
Yes 1-3
No Select
Yes (END)
No 1-4
Yes 1-5
No Correct the
settings
Yes (END)
No 1-6
Yes
Modify timer
settings
No 1-7
Yes Modify timer
settings
No 1-8
Yes 1-10
No 1-9
Yes Check setting
conflict.
No
1-2
No Modify settings
Yes 1-3
No Correct wiring
Yes 1-4
No 1-5
Yes Go back to 1-2
No Modify
Yes Modify settings
No 1-6