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Idiomas disponibles
Idiomas disponibles
Check code
Indication on 7-segment display on the outdoor unit
Auxiliary code
1 : Compressor 1 side
2 : Compressor 2 side
00: Compressor 1 side or Compressor 2 side
P07
0
: 4
H
e
t a
s
n i
k
P
1
0
D
e
e t
c
e t
d
n i
d
o
r o
u
n
t i
a
d
d
e r
s s
P
1 1
—
P
1
3
—
P
1
4
01: Outdoor unit valve is close
01: TS condition
P15
02: TD condition
P
1
7
—
P
1
9
D
e
e t
c
e t
d
o
u
d t
o
r o
u
n
t i
n
u
m
b
r e
P
2
0
—
1 : Fan P.C. board 1
P22
2 : Fan P.C. board 2
1 : Compressor 1 side
P25
2 : Compressor 2 side
1 : Compressor 1 side
P26
2 : Compressor 2 side
11: Compressor 1 side
P29
21: Compressor 2 side
*1 Inverter quantity information
01: Compressor 1 trouble
02: Compressor 2 trouble
03: Compressor 1 and 2 trouble
08: Fan 1 trouble
09: Compressor 1, Fan 1 trouble
0A: Compressor 2, Fan 1 trouble
0B: Compressor 1 and 2, Fan 1 trouble
10 : Fan 2 trouble
69-EN
Check code name
Heat sink overheating trouble
H
e
t a
s
n i
k
c
o
n
d
e
n
s
t a
o i
n
t
o r
u
b
e l
n I
d
o
r o
o
v
r e
flow error
O
u
d t
o
r o
h
e
t a
e
c x
h
a
n
g
e
f r
e r
e
z
n i
g
t
o r
u
b
e l
O
u
d t
o
r o
u
n
t i
flow back trouble detected
Another Refrigerant Cycle Protection
Gas leak detection
i D
c s
h
a
g r
e
e t
m
p
e
a r
u t
e r
T
D
2
t
o r
u
b
e l
- 4
w
a
y
v
a
v l
e
n i
v
e
s r
e
t
o r
u
b
e l
H
g i
h
p -
e r
s s
u
e r
p
o r
e t
c
v i t
e
o
p
r e
t a
o i
n
Outdoor fan inverter trouble
Compressor inverter P.C.board trouble
Compressor start up trouble
Compressor position detecting circuit system trouble
A value from 0 to F is displayed in " ".
11: Compressor 1, Fan 2 trouble
12: Compressor 2, Fan 2 trouble
13: Compressor 1 and 2, Fan 2 trouble
18: Fan 1 and 2 trouble
19: Compressor 1, Fan 1 and 2 trouble
1A: Compressor 2, Fan 1 and 2 trouble
1B: Compressor 1 and 2, Fan 1 and 2 trouble
– 35 –
WARNINGS ON REFRIGERANT LEAKAGE
Check of Concentration Limit
The room in which the air conditioner is to be installed
requires a design that in the event of refrigerant gas
leaking out, its concentration will not exceed a set limit.
The refrigerant R410A which is used in the air conditioner is
safe, without the toxicity or combustibility of ammonia, and is
not restricted by laws to be imposed which protect the ozone
layer. However, since it contains more than air, it poses the
risk of suffocation if its concentration should rise excessively.
Suffocation from leakage of R410A is almost non-existent.
With the recent increase in the number of high concentration
buildings, however, the installation of multi air conditioner
systems is on the increase because of the need for effective
use of fl oor space, individual control, energy conservation by
curtailing heat and carrying power etc.
Most importantly, the multi air conditioner system is able to
replenish a large amount of refrigerant compared with
conventional individual air conditioners. If a single unit of the
multi conditioner system is to be installed in a small room,
select a suitable model and installation procedure so that if
the refrigerant accidentally leaks out, its concentration does
not reach the limit (and in the event of an emergency,
measures can be made before injury can occur).
In a room where the concentration may exceed the limit,
create an opening with adjacent rooms, or install mechanical
ventilation combined with a gas leak detection device.
The concentration is as given below.
Total amount of refrigerant (lbs (kg))
Min. volume of the indoor unit installed room (ft
Concentration limit (lbs/ft
3
(kg/m
Concentration limit
Compliance to the local applicable regulations and standards
for the concentration limit is required.
NOTE 1 :
If there are 2 or more refrigerating systems in a single
refrigerating device, the amounts of refrigerant should be as
charged in each independent device.
Outdoor unit
e.g.,
e.g.,
charged amount
charged amount
((22 lbs) 10 kg)
(33 lbs (15 kg))
Room A Room B Room C Room D Room E Room F
For the amount of charge in this example:
The possible amount of leaked refrigerant gas in rooms A,
B and C is 22 lbs (10 kg).
The possible amount of leaked refrigerant gas in rooms
D, E and F is 33 lbs (15 kg).
Important
NOTE 2 :
The standards for minimum room volume are as
follows.
(1) No partition (shaded portion)
(2) When there is an effective opening with the adjacent
room for ventilation of leaking refrigerant gas (opening
without a door, or an opening 0.15% or larger than the
respective fl oor spaces at the top or bottom of the door).
Outdoor unit
Refrigerant piping
(3) If an indoor unit is installed in each partitioned room and
the refrigerant piping is interconnected, the smallest
room of course becomes the object. But when a
mechanical ventilation is installed interlocked with a gas
leakage detector in the smallest room where the density
limit is exceeded, the volume of the next smallest room
(m
))
becomes the object.
3
3
3
))
Very
small
room
Small
Medium
Large room
room
room
Mechanical ventilation device - Gas leak detector
Indoor unit
Indoor unit
Refrigerant piping
Outdoor unit
Indoor unit
70-EN
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