Cancellation Of The Outdoor Ambient Temperature Limit - Hitachi FSXN Series Service Manual

6 Optional functions
Converted frequency of constant speed compressor
Outdoor unit capacity (HP)
N O T E
The maximum frequency for the 8 to 18 HP outdoor units is indicated as: Inverter frequency + converted frequency
of constant speed compressor.

6.3.3 Cancellation of the outdoor ambient temperature limit

• Press PSW3 and select the setting condition "1" to "3" at the cancellation of outdoor ambient temperature limit of G5.
Then this function can be set.
• The heating operation is continued under a high outdoor temperature or the cooling operation is continued under a low
temperature.
• The limitation of the outdoor unit temperature area for heating mode is shown in the picture.
Setting condition
1
2
3
Heating operation
A
B
C
The limitation of the permissible outdoor temperature area in
heating operation (factory-set) as shown in the right figure is
canceled.
Cooling operation
A
B
C
The limitation of the permissible outdoor temperature area in
cooling operation (factory-set) as shown in the right figure is
canceled.
132
SMGB0065 rev. 1 - 12/2010
14,16
18
Indoor suction air temperature
Operation stoppage area
Outdoor temperature
Stoppage function area
Indoor suction air temperature
Outdoor temperature
Power supply frequency (Hz)
MC2
50
60
Operation mode for cancellation
Heating
Cooling
Heating/Cooling
30
27
25
A
0
15
B
17 19
26
C