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3.2 Possible settings for function C
The noise of level 3< level 2< level 1 (
H1P H2P H3P H4P H5P H6P H7P
w x x x x x x
(*)
OFF
w x x x x x c
1
w x x x x c x
2
w x x x x c c
3
(*) This setting = factory setting.
3.3 Possible settings for function D and E
For
function
D
(
L.N.O.P
level 2< level 1 (
1
).
For function E (
DEMAND
level 1< level 2 < level 3 (
H1P H2P H3P H4P H5P H6P H7P
w x x x x x c
1
w x x x x c x
2
(*)
w x x x c x x
3
(*) This setting = factory setting.
4
Push the
button and the setting is defined.
BS3 RETURN
5
When the
BS3 RETURN
starts according to the setting.
Refer to the service manual for more details and for other settings.
NOTE
When finished, please mark the settings of function C,
D and E in the "Records" part of the label on the
backside of the front plate.
Confirmation of the set mode
The following items can be confirmed by setting mode 1 (H1P
led is off)
Check the led indication in the field marked
1
Indication of the present operation state
x
normal
w
abnormal
c
under preparation or under test operation
H1P H2P H3P H4P H5P H6P H7P
x x w x x x x
2
Indication of COOL/HEAT selection setting
1
When set to COOL/HEAT change-over by each individual outdoor
unit circuit (= factory setting).
2
Indication on master unit when COOL/HEAT change-over is
carried out by outdoor units connected in multiple system-
combination.
3
Indication on slave unit when COOL/HEAT change-over is carried
out by outdoor units connected in multiple system-combination
H1P H2P H3P H4P H5P H6P H7P
x x w x x x x
(*)
1
x x x w x x x
2
x x x x w x x
3
(*) This setting = factory setting.
3
Indication of low noise operation state
x
standard operation (= factory setting)
w
operation
L.N.O.P
H1P H2P H3P H4P H5P H6P H7P
x x w x x x x
Installation manual
22
1
).
)
only: the
noise
of
) only: the power consumption of
).
3
button is pushed again, the operation
.
L.N.O.P
4
Indication of power consumption limitation setting
x
standard operation (= factory setting)
w
DEMAND
11.4. Test operation
level 3<
After turning on the power supply, the unit can not be
NOTE
started until the H2P initialisation led goes off
(maximum 12 minutes).
I
Check the stop valves
Make sure to open the gas and liquid line stop valves.
I
After installation, perform the test operation.
Unless the test operation is performed, the error code "U3" is
shown on the remote controller and the unit cannot be operated.
Performing the test operation
1
To protect the compressor, make sure to turn on the power
supply 6 hours before starting operation.
2
Set to setting mode 1 (H1P led is off) (refer to
on page
21).
3
Press the
standstill. The test operation starts when the H2P led blinks and
the remote controller indicates
(external control).
It may take 10 minutes to bring the state of refrigerant uniform
before the compressor starts, but that is not a malfunction.
The test operation is automatically carried out in cooling mode
during 15~30 minutes.
Depending on the situation, the refrigerant running sound or the
sound of a magnetic solenoid valve may rise during this
operation.
The following items are automatically checked:
-
Check for incorrect wiring
-
Check if stop valves are open
-
Check of refrigerant charge
-
Automatic judgement of piping length
NOTE
4
After the test operation (maximum 30 minutes), the unit
automatically stops. Check the operation results by the outdoor
unit led indication.
normal
abnormal
I
Indoor units cannot be checked individually. After the
test operation is finished, check the indoor units
individually via the remote controller. This is possible
for VRV and Sky Air indoor units only.
I
The led indication changes during this operation, but
that is not abnormal.
I
Please attach the front plate of the outdoor unit in
order to prevent electric shocks.
operation
H1P H2P H3P H4P H5P H6P H7P
x x w x x x x
button for 5 seconds when the unit is at a
BS4 TEST
(test operation) and
When you want to terminate the test operation,
press the
button. The unit will keep
BS3 RETURN
running for 30 seconds and then stops. During
test operation it is impossible to stop the unit with
the remote controller.
H1P H2P H3P H4P H5P H6P H7P
x x w x x x x
x w x x x x x
VRV IV-S System air conditioner
DEMAND
"Setting mode 1"
RXYSQ6TAV1B
4P482260-1 – 2017.03
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