Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P)
SiEN34-705
254
Installation Manual
4. Perform the refrigerant charging operation following [Refrigerant charging operation
procedure] as shown below, and charge the remaining refrigerant of the “additional charging
amount”. For performing the refrigerant charging operation the push button on the PC-board
(A1P) of outdoor unit (Incase of multi system master unit) are use. (See the figure 32) In
addition, the refrigerant are charged from the refrigerant charge port via the valve A.
(See the figure 33)
For operating the push button and opening and closing the valve, follow the work procedure.
Note:
The refrigerant will be charged about 22kg in one hour at outdoor temp. 30°C DB (6kg at 0°C
DB).
If you need to speedup in case of multi system, connect the refrigerant tanks to each outdoor
unit as shown in the figure 33.
[Refrigerant Charging Operation Procedure]
(1) Open the liquid and gas side shutoff valves (The valve A~C must be closed. The valve A~C
means the valves in the figure 33.)
[Display of normal system]
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.
LED display
(Default status of
shipped)
SERV.
MONI
TOR
MODE TEST/
HWL
C/H SELECTOR
L.N.O.P DEMA-ND MULTI
IND
MASTER 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
EL.COMPO.BOX lid
Pipe intake
Inspection door
Inspection door
EL.COMPO.BOX lid
LED (H1~8P)
Push button
(BS1-5)
Label “Service
Precaution”
Lift the protruding part
to open the cover
figure 32
:
:
Valve A
In case of multi system if you need to speedup.
Charge hose
Refrigerant charge port
Valve B
Outdoor
unit
To indoor unit
Field pipings
Refrigerant flow
Liquid side
shutoff valve
Shutoff valve
service port
Gas side
shutoff valve
Valve C
Valve A
R-410A tank
(with siphon)
Measuring
device
Outdoor
unit
Outdoor
unit
figure 33