Installation manual

RXYSQ4~6PA7V1B + RXYSQ4~6PA7Y1B
VRVIII-S system air conditioner
4PW40730-1
Installation manual
12
4.4 The led indication becomes as shown in the table below during
automatic refrigerant charging.
During automatic refrigerant charging, the remote controller
indicates (test operation) and (external control).
The led indication becomes as shown in the table below when
automatic refrigerant charging is about to end. Prepare to close
the valve on the refrigerant tank.
4.5 When the led indication becomes as shown in the table below,
quickly close valve A and follow instructions as described below.
Case 1: Charging complete
Charging of the refrigerant is complete. Press
button once and go to step 5.
Case 2: Recharging operation
Press button once and perform automatic
refrigerant charging again starting from Step 4.2.
Case 3: Charging interrupted
Something is preventing normal operation:
■ Is the gas side stop valve completely open?
■ Are the valve on the refrigerant tank and valve A open?
Check if the button was pressed within 10
minutes after the valves were opened.
■ Is the indoor unit air intake vent or outlet vent blocked?
After correcting the problem, press button once and
perform automatic refrigerant charging again starting from
step 4.2.
Case 4: Failure
After correcting the problem, press button once and
perform automatic refrigerant charging again starting from
step 4.2.
5 When charging is complete, determine the weight of refrigerant
that was added and fill in the amount in the "Additional
refrigerant charge label" attached to service precautions plate
on the unit.
6 After adding the refrigerant, do not forget to close the lid of the
service port. The tightening torque for the lid is 11.5~13.9 N•m.
Procedure 2: Charging while the outdoor unit is at a standstill
See figure 6.
1 Determine the weight of refrigerant to be charged additionally
referring to the item "Additional refrigerant charge" in "How to
calculate the additional refrigerant to be charged" on page 9 and
fill in the amount in the "Additional refrigerant charge label"
attached to the unit.
2 After the vacuum drying is finished, open valve A and charge the
additional refrigerant in its liquid state through the service port
on the liquid stop valve taking into account following instructions:
-Turn on the power of the outdoor unit and indoor units.
- Check that gas and liquid stop valves are closed.
- Stop the compressor and charge the specified weight of
refrigerant.
H1P H2P H3P H4P H5P H6P H7P Code on remote controller
cccxwxw
PA
H1P H2P H3P H4P H5P H6P H7P
wc
❃❃❃❃❃
NOTE
If the led display below appears, the refrigerant
tank is empty. Replace the refrigerant tank, open
valve A and re-charge.
H1P H2P H3P H4P H5P H6P H7P Code on remote controller
cccwwww
PE
NOTE
It is possible that the code PE is not shown on the
remote controller but this does not indicate a
malfunction. The led indication can immediately
shift to the situation as shown in "Case 1:
Charging complete" on page 12.
CAUTION
■ When adding refrigerant is done or when
pausing, close the valve on the refrigerant tank
immediately.
More refrigerant might be charged by any
remaining pressure after the machine is stopped.
■ The outdoor fan may keep rotating a little bit
more, but this does not indicate a malfunction.
H1P H2P H3P H4P H5P H6P H7P Code on remote controller
wccwwww
P9
H1P H2P H3P H4P H5P H6P H7P Code on remote controller
wcc x www
P8
H1P H2P H3P H4P H5P H6P H7P Code on remote controller
wcc xxxw
P2
H1P H2P H3P H4P H5P H6P H7P Code on remote controller
wcc x xwx
PA
BS1 MODE
BS1 MODE
BS4 TEST
H1P H2P H3P H4P H5P H6P H7P
Error code on remote
controller
xwwxxxx
See footnote
(*)
(*) An error in the system interrupted the operation of the unit. Check the
error by using the error code displayed on the remote controller. For an
explanation of the error codes, see "Error codes on the remote controller"
on page 20 and solve the problem.
1 Service port for adding refrigerant
2 Liquid line stop valve
3 Gas line stop valve
4 Pipe fixing plate
BS1 MODE
BS1 MODE
1
2
3
2
4
3
V1 Y1