MITSUBISHI ELECTRIC P500YMF-C - Manual (Page 34)

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Classification
Transmission
line
Portion Check item
1 Limitation of transmission line length followed? For
example, 200m or less (total length : 500m) at the farthest.
2 1.25mm 2 or more transmission line used?
(Remote controller 10m or less 0.75mm 2 )
3 2-core cable used for transmission line?
4 Transmission line apart from power source line by 5cm or more?
5 One refrigerant system per transmission line?
6 The short circuit connector is changed form CN41 to
CN40 on the MAIN board when the system is centralized
control? (Just one outdoor unit. Not all outdoor units.)
7 • No connection trouble in transmission line?
8 Connection of wrong remote controller line terminals?
• MA Remote controller : TB15
• M-NET Remote controller : TB5
Trouble
Erroneous operation, error stop.
Erroneous operation, error stop.
Error stop in case multiple-core
cable is used.
Erroneous operation, error stop.
Not operate.
Not operate.
Error stop or not operate.
Never finish the initial mode.
System set
Before starting
Error stop or not operate.
Can not be properly set with power
source turned on.
Not operate.
Set temperature not obtained at
heating operations (Thermostat
stop is difficult)
Error stop.
Error stop, compressor trouble.
1
2
1
2
3
4
Address setting properly done? (M-NET Remote
controller, indoor unit, BC controller and outdoor unit.)
Setting of address No. done when shutting off power
source?
Address numbers not duplicated?
Turned on SW3-8 on indoor unit circuit board when
mounting room thermistor sensor?
Refrigerant piping ball valve (Liquid pressure pipe, gas
pressure pipe) opened?
Turn on power source 12 hours before starting operations?
STAND BY
DEFROST ERROR CODE
D A I L Y AUTO OFF
CENTRALLY CONTROLLED
CLOCK
REMAINDER
ON OFF ˚C
1Hr.
NOT AVAILABLE ˚C
CHECK MODE
FILTER CHECK
TEST RUN
LIMIT TEMP.
ON/OFF TEMP
FILTER
CHECK TEST
ON OFF CLOCK
PAR-F27MEA TIMER SET
2 3 1
STAND BY
DEFROST ERROR CODE
D A I L Y AUTO OFF
CENTRALLY CONTROLLED
CLOCK
REMAINDER
ON OFF ˚C
1Hr.
NOT AVAILABLE ˚C
CHECK MODE
FILTER CHECK
TEST RUN
LIMIT TEMP.
ON/OFF TEMP
FILTER
CHECK TEST
ON OFF CLOCK
PAR-F27MEA TIMER SET