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[ X LED Monitor Display on the Heat source Unit Board ]
- 372 -
HWE09080
Error history
No.
SW1
Item
Display
Unit
(A, B)
*1
Remarks
1234567890 LD1 LD2 LD3 LD4 LD5 LD6 LD7 LD8 OC OS
201 1001001100
Heat source unit opera-
tion status
BC opera-
tion signal
3-minutes
restart mode
Compressor
in operation
Preliminary
error
Error
3-minutes
restart after
instanta-
neous power
failure
Preliminary
low pres-
sure error
AA
202 0101001100 OC/OS identification OC/OS-1/OS-2 A A
203 1101001100
BC operation mode Cooling-only
ON
Cooling-only
OFF
Heating-only
ON
Heating-only
OFF
Mixed-mode
ON
Mixed-mode
OFF
Fan Stop A A
204 0011001100
205 1011001100
Heat source unit Opera-
tion mode
Permissible
stop
Standby Cooling
Cooling-
main
Heating
Heating-
main
AA
206 0111001100
207 1111001100
208 0000101100
Heat source unit control
mode Stop Thermo OFF
Abnormal
stop
Scheduled
control
Initial start
up
Oil balance
Low fre-
quency oil
recovery
AA
209 1000101100
Refrigerant
recovery
AA
210 0100101100
211 1100101100
Relay output display 1
Lighting
Comp in op-
eration
72C OC Always lit A A
212 0010101100
Relay out-
put display
2
Lighting
Top 21S4a CH11 SV1a
AA
Bottom
213 1010101100
Relay out-
put display
3
Lighting
Top
SV4a SV4b SV4d SV9
Lit while
power to the
indoor units
is being sup-
plied
AA
Bottom SV7a SV7b
214 0110101100
215 1110101100
*1 A: The condition of either OC or OS is displayed individually. B: The condition of the entire refrigerant system is displayed.