Daikin VRV II REYQ8M8W1B, Instruction Manual

Page: 23 / 26

REYQ8~16M8W1B
VRVII System air conditioner
4PW23712-1 Installation manual
18
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
- normal
- abnormal
- under preparation or under test operation
2 Indication of COOL/HEAT selection setting
3 Indication of low noise operation state
- standard operation (= factory setting)
- operation
4 Indication of power consumption limitation setting
- standard operation (= factory setting)
- operation
8.4. Test operation
■
Check the stop valves
■
In case of 5~16 type: Make sure to open the suction and
discharge gas line stop valves and the liquid line stop valve.
■
In case of 18~48 type: Make sure to open the oil pressure
equalizing stop valves as well.
■
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 "Setting mode 1"
on page 17 ).
3 Press the button for 5 seconds (or longer when the
unit is at a standstill). The test operation starts when the H2P led
blinks and the remote controller indicates
(test operation)
and (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 miswiring
- Check if stop valves are open
- Check of refrigerant charge
- Automatic judgement of piping length
4 After the test operation (maximum 30 minutes), the unit
automatically stops. Check the operation results by the outdoor
unit led indication.
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 system connected in multiple system-
combination.
3 Indication on slave unit when COOL/HEAT change-over is
carried out by outdoor system connected in multiple system-
combination.
(*)
(*) This setting = factory setting.
H1P H1P H2P H2P H3P H3P H4P H4P H5P H5P H6P H6P H7P H7P
1
(*) (*)
H1P H1P H2P H2P H3P H3P H4P H4P H5P H5P H6P H6P H7P H7P
2
3
L.N.O.P
L.N.O.P
H1P H1P H2P H2P H3P H3P H4P H4P H5P H5P H6P H6P H7P H7P
DEMAND
DEMAND
H1P H1P H2P H2P H3P H3P H4P H4P H5P H5P H6P H6P H7P H7P
NOTE
■
In case of 18~48 type: check the setting and the
indication results. Refer to chapter
"Caution for
18~48 type units" on page 19 .
■
After turning on the power supply, the unit cannot
be started until the H2P initialisation led goes off
(maximum 12 minutes).
NOTE When you want to terminate the test operation,
press the
button. The unit will keep
running for 30 seconds and then stops. During
test operation it is impossible to stop the unit with
the remote controller.
normal
abnormal
■
Indoor units cannot be checked individually. After the
test operation is finished, check the indoor units
individually via the remote controller.
■
The led indication changes during this operation, but
that is not abnormal.
■
Please attach the front plate of the oudoor unit in
order to prevent incorrect judgement during operation.
BS4 TEST
BS3 RETURN
H1P H1P H2P H2P H3P H3P H4P H4P H5P H5P H6P H6P H7P H7P