10T8Y1B
VRV-W IV System Air Conditioner
4P399208-1 – 2015.01
Installation and operation manual
29
Location of the LED indicators, push buttons and DIP switches:
1
Electrical component box cover
2
Lift this portion to open the inspection door.
3
Inspection door
4
LED (H1P~H7P)
5
Push button (BS1~5)
6
DIP switch 3 (DS3-1~2)
7
DIP switch 1 (DS1-1~4)
8
DIP switch 2 (DS2-1~4)
Throughout the manual, the status of the LEDs is indicated as
follows:
x
OFF
w
ON
c
Blinking
15.2. Operating the push buttons and DIP switches on
the logic board
15.2.1 Operating the push buttons
By operating the push buttons it is possible to:
Perform special actions (refrigerant charge, test run, etc).
Perform field settings (demand operation, interlock setting, etc).
Below procedure explains how to operate the push buttons to reach
the required mode in the menu, select the correct setting and modify
the value of the setting. This procedure can be used any time special
settings and regular field setting are discussed in this manual (see
Setting definition: [A-B]=C; A=mode (1:Mode1; 2:Mode2;
M:Monitoring Mode); B=setting; C=setting value. A, B and C are
numerical values for field settings. Parameter C has to be defined. It
can be a chosen from a set (0, 1, 2, 3, 4, 5, …) or regarded as an ON/
OFF (1 or 0) depending on the contents. This is informed when the
field setting is explained (see
By pushing the push buttons, the LEDs will display the different
modes.
Functions of the push button switches which are located on the
outdoor PCB (A1P)
Turn on the power supply of the outdoor unit and all indoor units.
When the communication between indoor units and outdoor unit(s) is
established and normal, the LED indication state will be as below
(H2P OFF) (default situation when shipped from factory).
BS1 MODE
For changing the set mode
BS2 SET
For field setting
BS3 RETURN
For field setting
BS4 TEST
For test operation
BS5 RESET
For resetting the address when the wiring is changed or
when an additional indoor unit is installed
When above situation cannot be confirmed after 12 minutes, the
malfunction code can be checked on the indoor unit user interface
and the outdoor unit LED indication. Solve the malfunction code
accordingly. The communication wiring should be checked at first.
In case of a multi outdoor unit system, the LED state will be as follows
depending on the outdoor unit:
Making settings is done via the master outdoor unit.
Accessing modes
BS1 is used to change to the mode you want to access.
Access mode 1 (default system mode)
Push BS1 one time (H1P is OFF)
Access monitoring mode
Push BS1 one time to change to monitoring mode (H1P is blinking).
Access mode 2
Push BS1 for at least 5 seconds (H1P is ON):
Mode 1
Mode 1 is used to set basic settings and to monitor the status of the
unit (
).
Changing and access the setting in mode 1:
Once mode 1 is selected (push BS1 one time, H1P is OFF), you
can select the desired setting. It is done by pushing BS2.
Accessing the selected setting's value is done by pushing BS3
one time.
To quit and return to the initial status, press BS1.
Monitoring Mode
Monitoring mode is used to monitor the status of the unit (
).
CAUTION
Make sure to re-attach the inspection cover into the
electronic component box cover and to close the front
plate's inspection cover after the job is finished.
INFORMATION
During special operation (e.g., refrigerant charging, test
run, etc.) or when an malfunction happened, information
will be displayed.
1
4
5
6
3
8
7
2
H1P H2P H3P H4P H5P H6P H7P H8P
Master unit
x x w x x x x w
Slave unit 1
x x x x x x x c
Slave unit 2
x x x x x x x x
INFORMATION
Be sure to turn the power on at least 6 hours before
operation in order to have power running to the crank case
heater.
H1P H2P H3P H4P H5P H6P H7P
x x w x x x x
H1P H2P H3P H4P H5P H6P H7P
c x x x x x x
H1P H2P H3P H4P H5P H6P H7P
w x x x x x x
INFORMATION
If you get confused in the middle of the process, push BS1.
Then it returns to idle situation.
BS2
SET
BS1
MODE
BS3
RETURN
BS4
TEST
BS5
RESET
H1P
H2P
H3P
H4P
H5P
H6P
H7P
MODE
TEST:
HWL:
IND
MASTER
SLAVE
L.N.O.P DEMAND
C/H SELECT
