Daikin VRV III RXYQ5-54PY1, Service Manual, Page: 165 / 398

Test Operation Si34-601A
154 Test Operation
NOTE:
• For check operation, the following work will be performed.
„
Check of shutoff valve opening
„
Check of miswiring
„
Judgment of piping length
„
Check of refrigerant overcharge
• It takes about 40 minutes to complete the check operation.
[Check Operation Procedure]
STEP1 Make the onsite setting as needed using the dip switches on the outdoor unit PC-board
(A1P) with the power off (See “1.2.5.1 Onsite Settings With the Power Off”)
STEP2 Close the EL. COMPO. BOX lid and all front panels except as the side of the EL.
COMPO. BOX and turn on the power to the outdoor unit and all connected indoor units.
(Be sure to turn the power on at least 6 hours before operation in order to have power
running to the crank case heater.)
STEP3 Check the LED display on the outdoor unit PC-board (A1P) is as shown in the table
below and transmission is normal.
LED display:
3
...OFF,
4
...ON,
5
...Blinking
(*)How to distinguish the master unit, sub unit 1, and sub unit 2 in the multi system.
STEP4 Make the onsite settings as needed using the push button (BS1-BS5) on the outdoor
unit PC-board (A1P) with the power on. (See “1.2.5.2 Onsite Settings With the Power
On”)
STEP5 Perform the check operation following the Check Operation Method of the [Service
Precautions] label on the EL. COMPO. BOX lid. The system operation for about 40
minutes and automatically stops the check operation.
If the malfunction code is not displayed in the remote controller after the system stop,
check operation is completed. Normal operation will be possible after 5 minutes. If the
malfunction code is displayed in the remote controller, correct the malfunction following
[Remote controller displays malfunction code] and perform the check operation again.
LED display
(Default status of shipped)
SERV.
MONI-
TOR
MODE
TEST/
HWL
C/H SELECTOR
L.N.O.P
DEMA-
ND
MULTI
IND
MASTE
R
SLAVE
HAP H1P H2P H3P H4P H5P H6P H7P H8P
Single system
5 3 3 4 3 3 3 3 3
Multi
system
(*)
Master unit
5 3 3 4 3 3 3 3 4
Sub unit 1
5 3 3 3 3 3 3 3 5
Sub unit 2
5 3 3 3 3 3 3 3 3
Method 1: By the H8P (MULTI) LED display
4
(ON): Master unit
5
(Blinking): Sub unit 1
3
(OFF): Sub unit 2
Method 2: By the transmission wiring to indoor unit
Transmission wiring is connected: Master unit
Transmission wiring is not connected : Sub unit 1 or Sub unit 2