EDUS341411-N
Installation Manual
Installation of Outdoor Units
49
3P362438-1B
39
3P362438-1B English
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The test operation is automatically carried out, the outdoor unit
display will indicate
01
and the indication
Test operation
and
Under centralized control
will display on the user interface of
indoor units.
Steps during the automatic system test run procedure:
-
01
: control before start up (pressure equalization)
-
02
: cooling start up control
-
03
: cooling stable condition
-
04
: communication check
-
05
: stop valve check
-
06
: pipe length check
-
07
: refrigerant amount check
-
08
: detailed refrigerant situation check
-
09
: pump down operation
-
10
: unit stop
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During the test operation, it is not possible to stop the unit
operation from a user interface. To abort the operation, press
BS3. The unit will stop after ±30 seconds.
5
Check the test operation results on the outdoor unit segment
display.
- Normal completion: no indication on the segment display
(idle)
- Abnormal completion: indication of malfunction code on the
segment display
Refer to 15.4.3. Correcting after abnormal completion of the
test operation to take actions for correcting the abnormality.
When the test operation is fully completed, normal operation
will be possible after 5 minutes.
15.4.3. Correcting after abnormal completion of the test
operation
The test operation is only completed if there is no malfunction code
displayed on the user interface or outdoor unit segment display. In
case of a displayed malfunction code, perform correcting actions as
GZRNCKPGFKPVJGOCNHWPEVKQPEQFGVCDNG%CTT[QWVVJGVGUVQRGTCVKQP
CICKPCPFEQPƂTOVJCVVJGCDPQTOCNKV[KURTQRGTN[EQTTGEVGF
INFORMATION
Refer to the installation manual of the indoor unit for other detailed
malfunction codes related to indoor units.
15.5. Malfunction code list
In case of a displayed malfunction code, perform correcting actions as
GZRNCKPGFKPVJGOCNHWPEVKQPEQFGVCDNG
After correcting the abnormality, press BS3 to reset the malfunction
code and retry operation.
The malfunction code which is displayed on the outdoor unit will indi-
cate a main malfunction code and a sub code. The sub code indicates
more detailed information about the malfunction code. The malfunc-
tion code will be displayed intermittent.
Example:
Main code
Sub code
With an interval of 1 second, the display will switch between main
code and sub code.
Malfunction code
Contents
Solution
Main
code
Sub code
Master/sub 1/sub 2
E3
01/03/05
High pressure switch was activated (S1PH, S2PH) –
A1P (X3A; X4A).
%JGEMUVQRXCNXGUKVWCVKQPQTCDPQTOCNKVKGUKPƂGNF
RKRKPIQTCKTƃQYQXGTCKTEQQNGFEQKN
02/04/06
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Refrigerant overcharge
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Stop valve closed
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Check refrigerant recharge unit.
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Open stop valves.
13/14/15
Stop valve closed (liquid)
Open liquid stop valve.
18
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Refrigerant overcharge
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Stop valve closed
r
Check refrigerant recharge unit.
r
Open stop valves.
E4
01/02/03
Low pressure malfunction:
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Stop valve closed
r
Refrigerant shortage
r
Indoor unit malfunction
r
Open stop valves.
r
Check refrigerant recharge unit.
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Check the user interface’s display or Transmission
wiring between the outdoor unit and the indoor unit.
E9
01/05/08
'NGEVTQPKEGZRCPUKQPXCNXGOCNHWPEVKQPUWDEQQN
;'s#2:#
Check connection on printed circuit board or actuator.
04/07/10
'NGEVTQPKEGZRCPUKQPXCNXGOCNHWPEVKQPOCKP;'
– A1P (X23A)
Check connection on printed circuit board or actuator.
F3
01/03/05
Discharge temperature too high (R21T/R22T):
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Stop valve closed
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Refrigerant shortage
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Open stop valves.
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Check refrigerant recharge unit.
20/21/22
Compressor casing temperature too high (R8T):
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Stop valve closed
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Refrigerant shortage
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Open stop valves.
r
Check refrigerant recharge unit.
F6
02
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Refrigerant overcharge
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Stop valve closed
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Check refrigerant recharge unit.
r
Open stop valves.
H9
01/02/03
Ambient temperature sensor malfunction (R1T) – A1P
(X18A)
Check connection on printed circuit board or actuator.
Summary of Contents for VRV IV RXYQ TYDN Series
Page 1: ...EDUS341411 N Installation...
Page 62: ...EDUS341411 N REFNET Joint and Header Installation of Outdoor Units 63 3P161697D...
Page 66: ...EDUS341411 N REFNET Joint and Header Installation of Outdoor Units 67 C 3P113151C 7 8 1 1 1 8...
Page 67: ...REFNET Joint and Header EDUS341411 N 68 Installation of Outdoor Units KHRP26M73HU 3P185500...
Page 68: ...EDUS341411 N REFNET Joint and Header Installation of Outdoor Units 69 3P185500...
Page 70: ...EDUS341411 N REFNET Joint and Header Installation of Outdoor Units 71 1P218719...
Page 71: ...REFNET Joint and Header EDUS341411 N 72 Installation of Outdoor Units 1P218719...
Page 72: ...EDUS341411 N REFNET Joint and Header Installation of Outdoor Units 73 1P218720...
Page 73: ...REFNET Joint and Header EDUS341411 N 74 Installation of Outdoor Units 1P218720...
Page 75: ...REFNET Joint and Header EDUS341411 N 76 Installation of Outdoor Units 1P280278A...
Page 76: ...EDUS341411 N REFNET Joint and Header Installation of Outdoor Units 77 1P280278A...
Page 77: ...REFNET Joint and Header EDUS341411 N 78 Installation of Outdoor Units 1P280279...
Page 79: ...Caution Label EDUS341411 N 80 Installation of Outdoor Units 2P361359C...
Page 80: ...EDUS341411 N Caution Label Installation of Outdoor Units 81 3P357947A...
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Page 83: ...Caution Label EDUS341411 N 84 Installation of Outdoor Units 1P361833B...
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Page 89: ...Caution Label EDUS341411 N 90 Installation of Outdoor Units 3P357946A...
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