Toshiba MMC-UP0151HP-E, Руководство по обслуживанию

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Check code
Location
of
detection
Description System status
Check code detection
condition(s)
Check items (locations)
• Check outdoor unit model.
(Check whether the
outdoor unit corresponds
to Air to Air Heat
Exchanger type or not.)
Outdoor units
model
disagreement
trouble Indoor unit Stop of
corresponding
unit In case of different outdoor
unit (Not corresponded to
Air to Air Heat Exchanger
type)
L02 L02 —
• Check indoor addresses.
• Check for any change
made to remote controller
connection (group/
individual) since indoor
address setting.
Duplicated
indoor header
unit Indoor unit Stop of
corresponding
unit There are more than one
header units in group.
L03 — —
• Check power supply
voltage.
(AC380V-415V ± 10%).
• Check for failure in
compressor.
• Check for possible cause
of abnormal overloading.
• Check for failure in outdoor
P.C. board (compressor).
Compressor
trouble
(Step-out) Compressor
P.C. board 1
∗
: Compressor
1 side
2
∗
: Compressor
2 side
All stop Judged that the
synchronization could not be
taken.
H17 H17
• Check line addresses. Duplicated
outdoor line
address I/F All stop There is duplication in line
address setting for outdoor
units belonging to different
refrigerant piping systems.
L04 L04 —
• Check display on priority
indoor unit.
Duplicated
priority indoor
unit (as
displayed on
priority indoor
unit) I/F All stop More than one indoor units
have been set up as priority
indoor unit.
L05 — —
• Check displays on priority
indoor unit and outdoor
unit.
Duplicated
priority indoor
unit (as
displayed on
indoor unit other
than priority
indoor unit) I/F No. of priority
indoor units All stop More than one indoor units
have been set up as priority
indoor unit.
L06 L06
• Check indoor addresses. Connection of
group control
cable to
standalone
indoor unit Indoor unit Stop of
corresponding
unit There is at least one
standalone indoor unit to
which group control cable is
connected.
L07 — —
• Check indoor addresses.
Note:
This code is displayed
when power is turned on
for the first time after
installation.
Indoor group /
addresses not
set Indoor unit Stop of
corresponding
unit Address setting has not
been performed for indoor
units.
L08 L08 —
Set indoor capacity. (DN =
11) Indoor capacity
not set Indoor unit Stop of
corresponding
unit Capacity setting has not
been performed for indoor
unit.
L09 — —
Main
remote
controller
Outdoor 7-segment display
Check
code
Sub-code
• Check for disconnection of
TK1 sensor.
• Check resistance
characteristics of TK1
sensor.
• Check for connection
trouble involving TK1 and
TK2 sensors
• Check for clogging in oil
equalizing circuit capillary.
• Check for refrigerant
entrapment inside
compressor.
Oil level
detection
circuit trouble I/F 01: TK1 oil
circuit trouble
02: TK2 oil
circuit trouble
All stop No temperature change is
detected by TK1 despite
compressor 1 having been
started.
H16 H16
• Check for disconnection of
TK2 sensor.
• Check resistance
characteristics of TK2
sensor.
• Check for connection
trouble involving TK1 and
TK2 sensors
• Check SV3F valve
malfunction.
• Check for clogging in oil
equalizing circuit capillary.
• Check for refrigerant
entrapment inside
compressor.
No temperature change is
detected by TK2 despite
compressor 2 having been
started.
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