287
Optional Function
4.3.3 Cancellation of Outdoor Ambient Temperature Limit
Press “PSW3” and select the setting condition “0” to “3” at the cancellation of outdoor ambient temperature limit of “ ”.
Then, this function can be set. The heating operation is continued even under a high outdoor temperature or the cooling
operation is continued even under a low temperature.
Setting Condition Operation Mode for Cancellation
0 Not Available (Default Setting)
1 Heating
2 Cooling
3 Heating/Cooling
Heating Operation
The limitation of the permissible outdoor temperature area
in heating operation (factory-setting) shown in the right
gure is canceled.
NOTE:
When the outdoor ambient temperature limit for heating
operation is canceled, the operation may stop due to
increasing high pressure since the protection control is not
canceled.
Indoor
Suction Air
Temperature
°F(°C)
Operation
Stoppage
Area
32(0)
77(25)
62(17) 66(19) 78(26)
Outdoor Temperature °F(°C)
80(27)
Cooling Operation
The limitation of the permissible outdoor temperature area
in cooling operation (factory-setting) shown in the right
gure is canceled.
NOTE:
When the outdoor ambient temperature limit for cooling
operation is canceled, the operation may stop due to
decreasing low pressure since the protection control is not
canceled.
Indoor
Suction Air
Temperature
°F(°C)
Operation
Stoppage
Area
8.6(-13) 32(0)
Outdoor Temperature °F(°C)
50(10)
68(20)
NOTE:
If this function is set and the outdoor unit operates in the operation stoppage area shown in the above gure
for a long time, the outdoor unit may be damaged since protection control is canceled.
4.3.4 Defrost for Cold Area (Change of Defrost Condition)
Press “PSW3” and select the setting condition “1” at the defrost for cold area “ ”.
Setting
Condition
Standard Specications Cold Area Specications
When Change of Defrost Condition is NOT Set When Change of Defrost Condition is Set
Temperature
Conditions
under
Defrost
Operation
59
50
32
68
-6
-10
14 23
-15
5
-2
Defrost Operation
Stop Area
Defrost Operation
Start Area
Outdoor Temp. (°F)
Outdoor Evaporating
Temperature (°F)
(Pipe)
41
50 59
-21
42
59
50
32
68
14
14 235
Defrost Operation
Stop Area
Defrost Operation
Start Area
Outdoor Temp. (°F)
Outdoor Evaporating
Temperature (°F)
(Pipe)
41
50 59
42
28
23
5