19
Installation and Maintenance
Service Manual
temperature display status (corresponding remote control code:
10) from other display status (corresponding remote control code:
00, 01,11),controller will display indoor ambient temperature for 3s
and then turn back to display set temperature.
Under this mode, indoor fan operates at set fan speed.
Compressor, outdoor fan, 4-way valve and electric heating tube
stop operation. Indoor fan can select to operate at high, medium,
low or auto fan speed. Temperature setting range is 16~30
O
C.
(12)Off-peak energization function:
Adjust compressors minimum stop time. The original minimum
stop time is 180s and then we change to:
The time interval between two start-ups of compressor Can't be
less than 180+Ts(0≤T≤15). T is the variable of controller. Thats to
say the minimum stop time of compressor is 180s~195s. Read-
in T into memory chip when refurbish the memory chip each time.
After power recovery, compressor can only be started up after
180+T s at least.
(13) SE control mode
The unit operates at SE status.
(14) X-fan mode
When X-fan function is turned on, after turn off the unit, indoor fan
will still operate at low speed for 2min and then the complete unit
will be turned off. When x-fan function is turned off, after turn off
the unit, the complete unit will be turned off directly.
(15) 8
O
C heating function
Under heating mode, you can set 8
O
C heating function by remote
controller. The system will operate at 8
O
C set temperature.
(16)Turbo function
Turbo function can be set under cooling and heating modes.
Press Fan Speed button to cancel turbo setting. Turbo function is
not available under auto, drying and fan modes.
●
Outdoor Unit
1. Cooling mode:
Working condition and process of cooling mode:
①
When Tindoor ambient temperature≥Tpreset, unit enters into
cooling mode. Indoor fan, outdoor fan and compressor start
operation. Indoor fan operates according to set fan speed.
②
When Tindoor ambient temperature≤Tpreset-2
℃
, compressor
stops operation and outdoor fan will stop 30s later. Indoor fan
operates according to set fan speed.
③
When Tpreset-2
℃＜
Tindoor ambient temperature
＜
Tpreset,
unit operates according to the previous status.
Under cooling mode, 4-way valve is not energized. Temperature
setting range is 16~30
℃
. If compressor stops because of
malfunction in cooling mode, indoor fan and swing motor will work
according to the original status.
2. Drying mode
(1) Working condition and process of drying mode
①
When Tindoor ambient temperature
＞
Tpreset, unit will be in
drying mode. Outdoor fan and compressor start operation while
indoor fan will operate at low fan speed.
②
When Tpreset-2
℃
≤Tindoor ambient temperature≤Tpreset, unit
operates according to the previous status.
③
When Tindoor ambient temperature
＜
Tpreset-2
℃
,
compressor stops operation and outdoor fan will stop 30s later.
(2) Under drying mode, 4-way valve is not energized. Temperature
setting range is 16~30
℃
.
(3) Protection function: same as in cooling mode.
3. Fan mode
(1) Under this mode, indoor fan can select different fan speed
(except Turbo) or auto fan speed. Compressor, outdoor fan and
4-way valve all stop operation.
(2) In fan mode, temperature setting range is 16~30
℃
.
4. Heating mode
Working condition and process of heating mode:
①
When Tpreset-(Tindoor ambient temperature-
Tcompensation)≥1
℃
, unit enters into heating mode. Compressor,
outdoor fan and 4-way valve start operation.
②
When -2
℃＜
Tpreset-(Tindoor ambient temperature-
Tcompensation)
＜
1
℃
, unit operates according to the previous
status.
③
When Tpreset-(Tindoor ambient temperature-
Tcompensation)≤-2
℃
, compressor stops operation and outdoor
fan will stop 30s later. Indoor fan will be in residual-heat blowing
status.
④
When unit is turned off under heating mode or changed to other
modes from heating mode, 4-way valve will be power-off 2min
after compressor stops working (compressor is in operation status
under heating mode).
⑤
When Toutdoor ambient temperature
＞
30
℃
, compressor
stops operation immediately. Outdoor fan will stop 30s later.
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