Daikin VRV III RXYQ5-54PY1 Service Manual page 164

Si34-601A
[Refrigerant Charging Operation Procedure]
STEP1 Open the liquid and gas side shutoff valves (The valve A~C must be closed. The valve
[Display of normal system]
LED display
(Default status of shipped)
LED display:
(*)How to distinguish the master unit, sub unit 1, and sub unit 2 in the multi system.
Method 1: By the H8P (MULTI) LED display
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
STEP2 If necessary, set the field setting by using the dip switch on the outdoor unit PC-
STEP3 • Close the EL. COMPO. BOX lid and all front panel except on the side of the EL.
STEP4 Start the additional refrigerant charge operation.
STEP5 Close the valve A if the "additional charging amount" of refrigerant was charged, and
STEP6 Record the charging amount on the accessory "REQUEST FOR THE INDICATION"
5. After completing the additional refrigerant charging perform the check operation following
Test Operation
A~C means the valves in the figure 33.)
SERV.
MONI-
TOR
HAP
Single system
Master unit
Multi
system Sub unit 1
(*)
Sub unit 2
...OFF, ...ON,
3 4 5
4 (ON): Master unit
board(A1P).
(For how to set, see "1.2.5.1 Onsite Settings With the Power Off")
COMPO. BOX (*1) and turn the power to the outdoor unit and all connected indoor
units. (*2)
• After H2P stop blinking (about 12 minutes after turning on the power), check LED
displays as shown in the table [Display of normal system] and the system is normal
state.
If H2P is blinking, check the malfunction code in the remote controller, and correct the
malfunction in accordance with [Remote controller display malfunction code] in page
155.
(*1) Lead the refrigerant charge hose etc from the pipe intake. All front panels must be
closed at the procedure (9).
(*2) • If you perform the refrigerant charging operation within the refrigerant system that
have
the power off unit, the operation cannot finish properly.
For confirming the number of the outdoor and indoor units with the power on, see
[How to check how many units are connected] in chapter 1.2.4.1. In case of a multi
system,
turn on the power to all outdoor units in the refrigerant system.
• To energize the crankcase heater, make sure to turn on for 6 hours before starting
operation.
(About the system settings for additional refrigerant charge operation, refer to the
[Service Precaution] label attached on the EL. COMPO. BOX lid in the outdoor unit.)
Open valve A immediately after starting the compressor.
push the RETURN button (BS3) once.
label and attach it to the back side of the front panel.
below
C/H SELECTOR
MODE TEST/
HWL
IND
H1P H2P H3P
5 3 3 4
5 3 3 4
5 3 3 3
5 3 3 3
...Blinking
5 (Blinking): Sub unit 1
Test Operation
L.N.O.P DEMA-
MASTE
ND
SLAVE
R
H4P H5P H6P H7P
3 3 3
3 3 3
3 3 3
3 3 3
3 (OFF): Sub unit 2
MULTI
H8P
3 3
3 4
3 5
3 3
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