SERVICE MANUAL
Innovair Elite Mini Split
2
3
c.For heating and cooling unit, when 22°C(71.6°F)<
T
indoor ambient<26°C(78.8°F) (for cooling only unit, 22°C(71.6°F)<
Tindoor
ambient<26°C)(78.8°F
②
Protection
a. In cooling operation, protection is the same as that under the cooling mode;
b. In heating operation, protection is the same as that under the heating mode;
c. When ambient temperature changes, operation mode will be converted preferentially. Once started, the compressor willremain
unchanged for at least 6 minutes.
(7)Common Protection Functions and Fault Display under COOL, HEA
T, DRY and AUT
O Modes
①
Overload protection
T
tube
: measured temperature of outdoor heat exchanger under cooling mode; and measured temperature of indoor heat exchanger under
heating mode.
1) Cooling overload
a.If T
tube≤52°C(125.6°F
), the unit will return to its original operation state.
b.If T
tube≥55°C(131°F
), frequency rise is not allowed.
c.If T
tube≥58°C(136.4°F
), the compressor will run at reduced frequency.
d.If T
tube≥62°C(143.6°F
), the compressor will stop and the indoor fan will run at preset speed.
2) Heating overload
a.If T
tube≤50°C(122°F
), the unit will return to its original operation state.
b.If T
tube≥53°C(127.4°F
), frequency rise is not allowed.
c.If T
tube≥56°C(132.8°F
), the compressor will run at reduced frequency.
d.If T
tube≥60°C(140°F
), the compressor will stop and the indoor fan will blow residue heat and then stop.
②
Exhaust temperature protection of compressor
If exhaust temperature≥98°C(208.4°F
), frequency is not allowed to rise.
If exhaust temperature≥103°C(217.4°F
), the compressor will run at reduced frequency.
If exhaust temperature≥110°C(230°F
),, the compressor will stop.
If exhaust temperature≤90°C(194°F
), and the compressor has stayed at stop for at least 3 minutes, the compressor will resume its operation.
③
Communication fault
④
Module protection
Under module protection mode, the compressor will stop. When the compressor remains at stop for at least 3 minutes, the compressor will
resume its operation. If module protection occurs six times in succession, the compressor will not be started again.
⑤
Overload protection
If temperature sensed by the overload sensor is over
115 , the compressor will stop and the outdoor fan will stop with a time lag of 30
seconds. If temperature is below 95 , the overload protection will be relieved.
⑥
DC bus voltage protection
If voltage on the DC bus is below 150V or over 420V, the compressor will stop and the outdoor fan will stop with a time lag of 30 seconds.
When voltage on the DC bus returns to its normal value and the compressor has stayed at stop for at least 3 minutes, the compressor will
resume its operation.
⑦
Faults of temperature sensors
Designation of sensors
Faults
Indoor ambient temperature
The sensor is detected to be open-circuited or short-circuited for successive 5 seconds
Indoor tube temperature
The sensor is detected to be open-circuited or short-circuited for successive 5 seconds
Outdoor ambient temperature
The sensor is detected to be open-circuited or short-circuited for successive 30 seconds
Outdoor tube temperature
The sensor is detected to be open-circuited or short-circuited for successive 30 seconds, and no
detection is performed within 10 minutes after defrost begins.
Exhaust
After the compressor has operated for 3 minutes, the sensor is detected to be open-circuited or
short-circuited for successive 30 seconds.
Overload
After the compressor has operated for 3 minutes, the sensor is detected to be open-circuited or
short-circuited for successive 30 seconds.
3. Other Controls
(1) ON/OFF
Press the remote button ON/OFF: the on-o
ff state will be changed once each time you press the button.
(2) Mode Selection:
Press the remote button MODE, then select and show in the following ways:
AUT
O, COOL, D
RY,
FAN, HE
AT, AUTO.
(3) Temperature Setting Option Button
Each time you press the remote button
TEMP+ or
TEMP-, the setting temperature will be up or down by 1°C(1.8°F
). Regulating Range:
16(60.8°F)~30°C(86°F
), the button is useless under the AUTO mode.
(4) Time Switch
You should start and stop the machine according to the setting time by remote control.
(5) SLEE
P
State Control
