Mitsubishi Electric CITY MULTI CMB-P1016V-F, Руководство по обслуживанию

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Checking code Meaning, detecting method Cause Checking method & Countermeasure
Discharge
temperature
abnormality
(Outdoor unit) 1102 1. When 110˚C for 8HP and 120
°
C
temper
for 10HP or more discharge
for 10Hp or more discharge
for 10Hp or more discharge
ature is detected during
operations (the first time), out-
door unit stops once, mode is
changed to restart mode after
3 minutes, then the outdoor unit
restarts.
3. When 110˚C for 8Hp and 120
°
C .
is
d e t e c t e d a g a i n ( t h e t h i r d
time) within 30 minutes after
previous stop of outdoor unit,
emergency stop is observed with
.
code No. “1102” displayed.
4. When 110˚C for 8Hp and 120
°
C
is
detected 30 or more minutes
after previous stop of outdoor
unit, the stop is regarded as the
first time and the process sho wn
in 1 is observed.
5. 30 min
2.
utes after stop of outdoor
unit is intermittent fault check
period with LED displayed
(1202).
See Refrigerant amount check.
Check operating conditions and opera-
tion status of indoor/outdoor units.
Check operation status by actually
performing cooling or heating opera-
tions.
Cooling : Indoor LEV
(Cooling-only) LEV1 (PUHY)
LEV1, 3 (BC)
SVA (BC)
Heating : Indoor LEV
(Heating-only) LEV3 (BC)
SVB (BC)
SV3 ~ 6 (PURY)
See Trouble check of LEV and sole-
noid valve.
Check address setting of indoor unit
connection.
Confirm that ball valve is fully opened.
Check outdoor fan.
See Trouble check of outdoor fan.
Check operation status of cooling-only
or heating-only.
See Trouble check of solenoid
valve.
Check resistance of thermistor.
Check inlet temperature of sensor
with LED monitor.
1) Gas leak, gas shortage.
2) Overload operations.
3) Poor operations of indoor LEV.
4) Poor operations of OC controller
LEV:
Cooling
: LEV1
5) Poor operations of BC controller
LEV:
Cooling-only
: LEV3
Cooling-main : LEV1, 3
Heating-only, Heating-main:
LEV3
Defrost : LEV3
6) Poor operations of BC controller
SVA
:
Cooling-only, Cooling-main
7) Poor operations of BC controller
SVB
:
Heating-only, Heating-main
8) Poor operations of solenoid
valves.
SV (3 ~ 6) (PURY)
Heating-only, Heating-main
9) Setting error of connection
address (PURY).
10)Poor operations of ball valve.
11)Outdoor unit fan block, motor
trouble, poor operations of fan
controller
Heating (Heating-only,
Heating-main).
3) ~ 11) : Rise in discharge
temp. by low pressure drawing.
12)Gas leak between low and high
pressures.
4-way valve trouble, compres-
sor trouble, solenoid valve
SV1 trouble.
13)Poor operation of solenoid valve
SV1.
Bypass valve SV1 can not
control rise in discharge temp.
14)Thermistor trouble. (TH1)
15)Thermistor input circuit trouble on
control circuit board.
When 110
°
C for 8HP and 120
°
C for 10HP or higher dis-
charge is detected again (the
second time) within 30 minutes
after the first stop of outdoor
unit, mode is changed to re-
start mode after 3 minutes,
then the outdoor unit restarts.