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–170–
(2)
Communication/system
Checking
code
6600
6602
Meaning, detecting method
Cause
Checking method & Countermeasure
Multiple address error
Transmission from units with the
same address is detected.
Note)
The address/attribute
shown on remote
controller indicates the
controller which has
detected error.
Transmission processor hard-
ware error
Though transmission processor
intends to transmit “0”, “1” is dis-
played on transmission line.
Note)
The address/attribute
shown on remote
controller indicates the
controller which has
detected error.
1) Two or more controllers of outdoor
unit, indoor unit, remote controller,
etc. have the same address.
2) In the case that signal has changed
due to noise entered into the trans-
mission signal.
At the genration of 6600 error, release the error by
remote controller (with stop key) and start again.
a) If the error occures again within 5 minutes
→
Search for the unit which has the same ad-
dress with that of the source of the trouble.
When the same address is found, turn off
the power source of outdoor unit, and indoor
unit for 5 minutes or more after modifying
the address, and then turn on it again.
b) When no trouble is generated even continuing
operation over 5 minutes.
→
The transmission wave shape/noise on the
transmission line should be investigated in
accordance with <Investigation method of
transmission wave shape/noise>.
1) At the collision of mutual transmission data generated during the wiring work or polarity
change of the transmission line of indoor or outdoor unit while turning the power source
on, the wave shape is changed and the error is detected.
2) 100 V power source connection to indoor unit.
3) Ground fault of transmission line.
4) Insertion of power supply connector (CN40) of plural outdoor units at the grouping of
plural refrigerant systems.
5) Insertion of power supply connector (CN40) of plural outdoor units in the connection
system with MELANS.
6) Faulty controller of unit in trouble.
7) Change of transmission data due to the noise in transmission.
8) Connection system with plural refrigerant systems or MELANS for which voltage is not
applied on the transmission line for central control.
Содержание CITY MULTI PUHY-400YMF-B
Страница 13: ... 10 Noise filter NF DC reactor DCL Noise filter box Noise Filter Box Rear of the controller box ...
Страница 16: ... 13 FANCON board CNV CNW CNU CNFC2 ...
Страница 17: ... 14 RELAY board CN51C2 CNOUT2 CNRT2 CN52F CN52C2 CNCH ...
Страница 20: ... 17 CONT board SWU2 CNTR SWU1 CNFC1 SW3 SW2 CNS1 M NET transmission CN20 Power supply 1 N 3 L1 ...
Страница 26: ... 23 ...
Страница 50: ... 47 ...
Страница 152: ... 149 Model PUHY 400YMF B 500YMF B ...