REMQ8~16P7Y1B
VRVIII System air conditioner
4PW37156-1
Installation manual
20
■
Charging in heating mode
6.
Start up
Wait while the unit is preparing for charging in heating mode.
It takes about 2 to 10 minutes for the system to become stable.
In case of a small charging amount, the system will start
charging the refrigerant before the system reaches the stable
state. It may disturb a correct decision and may cause
overcharging.
7.
Ready
Press the
button once within 5 minutes.
If the
button is not pushed within 5 minutes,
P2
will be
displayed on the remote controller. Refer to
malfunction code display" on page 21
8.
Operation
When the following LED display is shown, open valve A and
close the front panel. If the front panel is left open, the system
can not operate properly during the refrigerant charging.
*
= The state of this LED is not important.
9.
Complete
If the calculated amount of refrigerant is reached, close valve A
and press the
button once.
10. Press the
button once and the charging is complete.
Record the amount that was added on the additional refrigerant
charge label provided with the unit and attach it on the back side
of the front panel.
Perform the test procedure as described in
■
Charging in cooling mode
6.
Start up
Wait while the unit is preparing for charging in cooling mode.
It takes about 2 to 10 minutes for the system to become stable.
In case of a small charging amount, the system will start
charging the refrigerant before the system reaches the stable
state. It may disturb a correct decision and may cause
overcharging.
7.
Ready
Press the
button once within 5 minutes.
If the
button is not pushed within 5 minutes,
P2
will be
displayed on the remote controller. Refer to
malfunction code display" on page 21
8.
Operation
When the following LED display is shown, open valve A and
close the front panel. If the front panel is left open, the system
can not operate properly during the refrigerant charging.
*
= The state of this LED is not important.
H1P
H2P
H3P
H4P
H5P
H6P
H7P
Pressure control
(for the first minute)
x c x
x
x
x w
Start up control
(for the next 2 minutes)
c c x
x
x w x
Waiting for stable
heating conditions
(for the next ±15
minutes (according to
the system))
c c x
x
x w w
H1P
H2P
H3P
H4P
H5P
H6P
H7P
c c x
x w x w
When the refrigerant tank is not connected or is left
with the valve closed for 30 minutes or more, the
outdoor unit will stop operation and the
P2
code will be
displayed on the remote controller of the indoor unit.
Follow the procedure as described in
controller malfunction code display" on page 21
H1P
H2P
H3P
H4P
H5P
H6P
H7P
w c
*
*
*
*
*
When a malfunction occurs, check the display of the
remote controller and refer to
malfunction code display" on page 21
NOTE
Always close valve A and remove the refrigerant
tank immediately after finishing the refrigerant
charge operation.
H1P
H2P
H3P
H4P
H5P
H6P
H7P
c c c w w w w
BS4 TEST
BS4 TEST
BS3 RETURN
H1P
H2P
H3P
H4P
H5P
H6P
H7P
Pressure control
(for the first minute)
x c x
x
x
x w
Start up control
(for the next 2 minutes)
x c x
x
x w x
Waiting for stable
cooling conditions
(for the next ±15
minutes (according to
the system))
x c x
x
x w w
H1P
H2P
H3P
H4P
H5P
H6P
H7P
c c c x w x w
When the refrigerant tank is not connected or is left
with the valve closed for 30 minutes or more, the
outdoor unit will stop operation and the
P2
code will be
displayed on the remote controller of the indoor unit.
Follow the procedure as described in
controller malfunction code display" on page 21
H1P
H2P
H3P
H4P
H5P
H6P
H7P
w c
*
*
*
*
*
When a malfunction occurs, check the display of the
remote controller and refer to
malfunction code display" on page 21
.
BS1 MODE
BS4 TEST
BS4 TEST