Vivax ACP-09CH25GECI Service Manual page 20

(1)Cooling Mode
1. When room temp-set temp ≤-2
Outdoor fan will stop later and indoor fan will operate at set
speed;
2. When room temp –set temp
continues for a period of time, cooling operation will be
started. In that case, indoor fan, outdoor fan and
compressor will operate and the indoor fan will operate at
set speed.
* In this mode, fan and swing motor will operate at set status
and the temp range setting is 16~30
* If there is malfunction of outdoor unit or the unit stops for
protection, the indoor unit will keep its operation status but the
error will be displayed.
C
B
A
Indoor temperature- set temperature
(2)Dry Mode
1. In this mode, the fan motor runs at low fan speed while swing works
according to setting state. The range of setting temperature is 16~30
2. When outdoor unit has malfunction or stopped for protection,
the indoor fan will keep the original running state and the error will be displayed
(3)Fan Mode
1. In this mode, the indoor fan may run at high, medium, low and automatic
2. In this mode, the range of setting temperature is 16~30
(4)Heating Mode
When setting temperature-indoor temperature<= -1.5
When setting temperature-indoor temperature>-1.5
certain period, the unit will start heating. In that case, indoor fan, outdoor fan
and compressor will start running. The indoor fan works according to the
operation of cold air prevention.
* In this mode, the range of setting temperature is 16~30
A
Set temperature- indoor temperature
B
C
2. Protection function: in heating mode, when the compressor stops as
3. Defrosting control: when the defrosting signal is received, the
,cooling will stop;
-2 , if such situation
.
61~86
(61~86H).
and it lasts for a
(61~86H).
* Cold Air Prevention Function
The rotational speed of indoor motor is decided based on the
indoor pipe temperature. The indoor fan can run at low speed or stop
running. This function will terminate after the unit runs for 3min or the
pipe temperature reached certain value.
During heating, if the indoor pipe temperature is lower than certain value.
The running speed of indoor fan will decrease automatically based on the
pipe temperature to
* X-Fan Function
During heating, when conditions for st op of the compressor is reached,
the compressor and the outdoor fa n stop running while the horizontal
louver rotates to level L. the indoor fan will stop after running for
60s at setting speed.
(5)Auto Changeover Mode
In this mode, the system selects the oper ation mode (cooling, heating, and fan)
automatically according to the ambient temperature. The display shows the
actual operation mode and setting temperature. There will be 30s delay for
mode conversion. The protection function is the same as that of other modes.
1. When T amb =25 , the cooling mode is selected.
2. for heat pump unit: when Tamb =22
3. for cooling only unit: when Tamb < 22
4. When 22 <T indoor amb< 25
enter auto mode and run in automatic fan mode. If the other mode
changes to auto mode, the previous operation mode will remain.
Cooling Heating
operation operation
With compressor capacity supplied
With no compressor capacity supplied
(6)Auto Fan Speed Mode
In auto fan mode, the rotational speed of the fan for indoor unit is
decided by the differential temperature between ambient temperature and
setting temperature. In dry mode, the automatic fan speed is
forced to be low.
No. of
unit
model
jumper
type
cap
Rotational speed
during cooling
1 09K
Rotational speed
during heating
Rotational speed
during cooling
2 12K
Rotational speed
d uring heating
, the unit runs in heating mode
, the unit runs in fan mode. .
, upon initial startup, the unit will
Cooling
operation
Super-high Low fan
High fan
Medium
fan speed
speed
speed fan speed
1300 1100 900
1300 1140 980
1350 1150 950
1350 1190 1020
700
820
750
850