Panasonic U-5MX3XPQ, Руководство по установке

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Installation manual
16
U-5~48MX3
Urban Multi air conditioner
4PW16235-1C
8. B
EFORE OPERATION
8.1. Checks before initial start-up
After the installation, check the following before switching on the
circuit breaker:
1 The position of the switches that require an initial setting
Make sure that switches are set according to your application
needs before turning the power supply on.
2 Power supply wiring and transmission wiring
Use a designated power supply and transmission wiring and
make sure that it has been carried out according to the
instructions described in this manual, according to the wiring
diagrams and according to local and national regulations.
3 Pipe sizes and pipe insulation
Make sure that correct pipe sizes are installed and that the
insulation work is properly executed.
4 Additional refrigerant charge
The amount of refrigerant to be added to the unit should be
written on the included “Added Refrigerant” plate and attached
to the rear side of the front cover.
5 Insulation test of the main power circuit
Using a megatester for 500 V, check that the insulation
resistance of 2 M
Ω
or more is attained by applying a voltage of
500 V DC between power terminals and earth. Never use the
megatester for the transmission wiring.
6 Installation date
Be sure to keep record of the installation date on the sticker on
the rear of the upper front panel according to EN60335-2-40.
8.2. Test run
Power supply connection
When running the unit for the first time after installation, be sure to
perform a test run following these steps for test run. (Not performing
a test run when the unit is first installed may prevent the unit from
operating properly.)
■
During the operation, monitor the outdoor unit operation status
and check for any incorrect wiring.
(See figure 19)
<Cautions for check operation>
■
If the system is started within about 12 minutes after the
outdoor/indoor units are turned ON, the compressor will not run
and H2P lights up. Before starting an operation, always verify
that the LED display shows the contents of the table in
"8.2. Test
run" on page 16 .
■
The system may require up to 10 minutes until it can start the
compressor after an operation start. This is a normal operation
to equalize the refrigerant distribution.
■
The check operation does not provide any means of checking
the indoor units individually. For that purpose, perform normal
operation using the remote controller after the check operation.
■
Make sure that the circuit breaker on the power supply
panel of the installation is switched off.
■
Attach the power wire securely.
■
Introducing power with a missing N-phase or with a
mistaken N-phase will break the equipment.
After completing installation, be sure to open the valve.
(Operating the unit with the valve shut will break the
compressor.)
Turn ON the power to the outdoor units
and indoor units. Make sure to turn ON the power 6
hours before starting the operation.
This is necessary to warm the
crankcase preliminarily by the electric
heater.
Check the LED on the P-board (A1P) in the outdoor unit to see if the data
transmission is performed normally.
• As necessary, configure the system
settings on-site by using the dipswitch
(DS1) on the outdoor unit P-board
(A1P) and push button switches
(BS1~5).
• When the system is in the multiple-
outdoor unit configuration (Out
Multi), perform the configuration on
the parent unit. (Any settings made
on a child unit will be ignored.)
Always perform configuration after
turning ON the power. To learn the
setting method, refer to the [Service
precautions] label attached at the
position shown in
figure 19 (Electric box
lid in outdoor unit). (Remember, the
actual settings you have made must be
recorded on the [Service Precautions]
label.)
Check if the stop valves are in
appropriate status and correct any
wrong status. (Refer to the table in
"6.6. Additional refrigerant charge" on
page 10
.)
CAUTION
Do not leave any stop valve closed.
Otherwise the compressor will fail.
Perform the check operation following
the instructions printed on the [Service
Precaution] label. The system operates for about 15
minutes (30 minutes at maximum) and
automatically stops the test operation.
The system can start a normal
operation about 15 minutes after the
test operation, only if the remote
controller displays no error codes.
1 Electric box lid
2 Location of the service precautions label
3 Location of the caution label
Led display (Default
status before delivery)
Micro-
computer
operation
monitor Page
Ready/
Error
Cooler/heater changeover
Low
noise Demand Multi Individual
Bulk
(parent)
Bulk
(child)
HAP H1P H2P H3P H4P H5P H6P H7P H8P
One outdoor unit
installed
When
multiple
outdoor
unit
installed
(*)
Master
station
Sub
station 1
Sub
station 2
LED display: OFF ON Blinking
(*) The base (parent) unit is the outdoor unit to which the interconnecting wiring for
the indoor units is connected. The other outdoor units are child units.