Panasonic U-8ME1E81, Руководство по обслуживанию

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1 -2
2WAY SYSTEM
Address Settings
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
Test Run Procedure
*1
*2
*3
*3
*2
Items to Check Before the Test Run
1. Turn the remote power switch on at least 5
hours before the test, in order to energize the
crankcase heater.
2. After performing the leak inspection, applying
vacuum, and performing refrigerant charge for
the tubing which is connected on-site, fully open
the outdoor unit service valve. However if only
one outdoor unit is installed, a balance tube is
not used. Therefore, leave the valve fully closed.
3. When replacing the control PCB, be sure that
the settings on the new PCB match those on the
old PCB.
4. Use caution when making the settings. If there
are duplicated system addresses, or if the
settings for the Nos. of the indoor units are not
consistent, an alarm will occur and the system
will not start.
5. These settings are not made on the indoor unit
PCB.
Recheck the items to check before the test run.
Have the outdoor sub
units been connected?
Set the unit address.
Set the No. of outdoor units.
Set the No. of indoor units.
YES
YES
Set the system address.
When multiple outdoor main units exist, disconnect the
terminals extended from the shorted plugs (CN67) at
all outdoor main unit PCBs except for 1. Alternatively,
move the sockets to the OPEN side.
Are the inter-unit control
wires connected to more than 1
refrigerant system?
Is it possible to turn ON the
power only for the 1 refrigerant system where
the test run will be performed?
Will automatic address setting be
performed in Heating mode?
Is it OK to start the
compressors?
Is it OK to start
the compressors?
Turn ON the indoor and
outdoor unit power.
Short-circuit the cooling side of the
mode change pin (CN40) on the
outdoor main unit PCB.
At the same time, short-circuit the
automatic address pin (CN30) for 1
second or longer, then release it.
Short-circuit the automatic
address pin (CN30) on the
outdoor main unit PCB for 1
second or longer, then release it.
Note: It is not necessary to remove
the socket that is used to short-
circuit the terminal plugs from
the outdoor sub unit PCBs.
Start indoor and outdoor unit
heating operation.
LED 1 and 2 blink alternately.
Start indoor and outdoor unit
cooling operation.
LED 1 and 2 blink alternately.
Are LEDs 1 and 2 on the
outdoor unit PCB OFF?
Turn ON the indoor and
outdoor unit power.
CASE 3B
CASE 2
Make necessary
corrections.
Make necessary
corrections.
Turn OFF the indoor
and outdoor unit.
Turn OFF the
indoor and outdoor
unit power.
Check the alarm
contents.
Check the alarm
contents.
*2 A minimum of 5 hours must have
passed after the power was turned ON
to the outdoor unit.
*3 All indoor units operate in all refrigerant
systems where the power is ON.
Refer to “Table of
Self-Diagnostic Functions and
Description of Alarm Displays.”
Are LEDs 1 and 2 on the
outdoor unit PCB OFF?
LED 1 and 2 blink alternately
(about 2 or 3 minutes).
Short-circuit the automatic
address pin (CN30) on the
outdoor main unit PCB for 1
second or longer, then release it.
Turn ON the indoor and outdoor
unit power for that refrigerant
system only.
CASE 1
*1
The unit with the
unit No. set to 1
is the main unit.
All other units
are sub units.
CASE 3A
NO
NO
Refer to Fig. 4-1
(Check the link wiring.)
<Outdoor unit control PCB>
Unit No. setting switch
(SW3 and SW4)
<Outdoor unit control PCB>
Unit No. setting switch (SW6)
<Outdoor unit control PCB>
Unit No. setting switch (SW5)
<Outdoor unit control PCB>
Unit No. setting switch
(SW1 and SW2)
NO
NO
NO
YES
NO
NO
YES
YES
Check that test run preparation is OK.
(Do not allow the short-circuited pins to remain short-circuited.)
Set the wired remote controller for test run.
Refer to the
remote controller
test-run settings.
Check and make corrections according
to “Table of Self-Diagnostic Functions.”
Does system
operate?
Return remote control to normal mode.
End test run.
YES
YES
1. Test Run
SM830205-04_2WAY_VRF_Euro.indb 2 15/01/20 15:15:22