-
426
-
Error code
Remote controller:
Indoor
display
RUN light TIMER light
Green LED Red LED
Outdoor
control PCB
Content
-
426
-
'12 • PAC-T-173
None
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–
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Is the
temperature differnce
between return and supply air
10-30°C at
heating?
Check the indoor unit fan operation.
Check the temperature differnce
between return and supply air.
Does the
heat load increase after
installtion?
“ ”
message is displayed (for 3 seconds) when
performing cooling, defrosting and heating
operations from the remote
controller.
Is the
compressor rotation
speed low?
Are the
temperature conditions
of room and outdoor air close
to the rated
conditions?
Mistake in model selection.
Calculate heat load once again.
The unit is operating normally but is
operating under the contol for protecting
compressor or other respective parts.
Check which control “Determination control of
conpressor rotation speed” or “Protective control
by controlling compressor rotation speed” is
appropriate to this phenomenon.
NO
YES
YES
NO
YES
YES
YES
NO
NO
Is the compressor
operating?
NO
YES
NO
Note (1) Outdoor: 7°C, Indoor: 20°C
(1)
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Note:
Summary of Contents for FDC Series
Page 95: ... 94 12 PAC T 173 Models FDT100VF 125VF 140VF H H H H H C B A F G D G PJF000Z285 ...
Page 98: ... 97 12 PAC T 173 Models FDEN60VF 71VF C 2 C 1 A B A B D C 1 C 2 C 1 C 2 E G F B PFA003Z817 ...
Page 113: ... 112 12 PAC T 173 b Wireless remote controller RCN E1R 60 17 150 Unit mm ...
Page 278: ... 277 12 PAC T 173 ー K ...
Page 346: ... 345 12 PAC T 173 Power PCB 1BSU OVNCFS 4GRNCEG VJG 2 ...
Page 518: ... 517 12 PAC T 173 3 5 SUPER LINK E BOARD SC ADNA E F SL2NA E and SL3N AE BE to control ...
Page 519: ... 518 12 PAC T 173 ...
