17
START
−
UP
Test Operation
Perform test operation after completing gas leak and electrical
safety check. See the indoor unit installation instructions and
owner’s manual for additional start up information.
SYSTEM CHECKS
1. Conceal the tubing where possible.
2. Ensure the drain tube slopes downward along its entire
length.
3. Ensure all tubing and connections are properly insulated.
4. Fasten tubes to the outside wall, when possible.
5. Seal the hole through which the cables and tubing pass.
OUTDOOR UNIT
1. Are there unusual noises or vibrations during operation?
Explain the Following Items To Customer (with the aid of the
Owner’s Manual):
2. Explain care and maintenance.
3. Present the Owner’s Manual and installation instructions to
customer.
OUTDOOR UNIT DIAGNOSTIC GUIDES
This unit has on
−
board diagnostics. Error codes are displayed on the wired remote controller and the outdoor unit microprocessor board with
colored LED lights. Table 14 explains the error codes on both.
Table 14—Outdoor Unit Error Display
DISPLAY
LED STATUS
IDU Error
IDU Error
E0
Outdoor
EEPR
O
M
malfunction
F
4
E6
E2
C
ommunication
malfunction
between
indoor
and
outdoor
units
E
1
E2
E3
C
ommunication
malfunction
between
IPM
board
and
outdoor
main
board
——
——
E4
Open
or
short
circuit
of
outdoor
temperature
sensor
(
T3
、
T
4
、
T5
、
T2B
)
F2
E6
E5
V
oltage
protection
P
1
P0
E6
PFC
module
protection
——
——
E8
Outdoor
fan
speed
has
been
out
of
control
(Only
for
D
C
fan
motor
models)
F5
——
E9
W
rong
wiring
connection
of
2
4
K
indoor
unit
——
——
F1
N
o
A I
ndoor
unit
coil
outlet
temp
.
sensor
or
connector
of
sensor
is
defective
——
——
F2
N
o
B I
ndoor
unit
coil
outlet
temp
.
sensor
or
connector
of
sensor
is
defective
——
——
F3
N
o
C I
ndoor
unit
coil
outlet
temp
.
sensor
or
connector
of
sensor
is
defective
——
——
F4
N
o
D
I
ndoor
unit
coil
outlet
temp
.
sensor
or
connector
of
sensor
is
defective
——
——
F5
N
o
E I
ndoor
unit
coil
outlet
temp
.
sensor
or
connector
of
sensor
is
defective
——
——
F6
N
o
F I
ndoor
unit
coil
outlet
temp
.
sensor
or
connector
of
sensor
is
defective
——
——
P0
T
emperature
protection
of
compressor
top
P2
P3
(
P
1)
P1
High
pressure
protection
——
——
P2
Low
pressure
protection
——
——
P3
C
urrent
protection
of
compressor
——
——
(P2)
P4
T
emperature
protection
of
compressor
discharge
——
——
P5
High
temperature
protection
of
condenser
——
——
P6
IPM
module
protection
P0
E5
Содержание 38MGQ Series
Страница 7: ...7 DIMENSIONS OUTDOOR CONTINUED Suction Fig 3 Outdoor Dimensions Size 27...
Страница 8: ...8 DIMENSIONS OUTDOOR CONTINUED Suction Fig 4 Outdoor Dimensions Size 36...
Страница 9: ...9 DIMENSIONS OUTDOOR CONTINUED Suction Fig 5 Outdoor Dimensions Size 48...
Страница 13: ...13 CONNECTION DIAGRAMS Fig 12 Connection Diagram Size 18 Fig 13 Connection Diagram Size 27...
