Fujitsu AUXB12GA* H - High Pressure Protection

02-18
Protective function Detect device
Operation
High pressure
protection 1
High
pressure
sensor
High
pressure
sensor
Cool Heat
High pressure
protection 2
High
pressure
sensor
Display
Abnormal high
pressure
protection
control
High Pressure
Protection Stop 1
High
pressure
sensor
High
pressure
switch
High pressure
protection stop 2
P2
EA41
EA42
P2
2-7-2 High pressure protection
Above 3.94MPa 60 sec. elapsed and
Below 3.70MPa
SV2 =>ON
Pattern 1
Above 3.40 (3.70)* MPa
Pattern 2
Above 3.50 (3.80)* MPa
60 sec. elapsed and
Below 3.24 (3.54)* MPa
180 sec. elapsed and
Below 3.34 (3.64)* Mpa
SV2 =>ON
SV1, SV2 =>ON
Pattern 1
Cooling :
Above 3.78MPa
25 sec. elapsed and
Below 3.70Mpa
Compressor rotation speed
rise up prohibit
Heating :
Above 3.24 (3.54)* MPa
Pattern 2
Cooling :
Above 3.90MPa
Heating :
Above 3.30(3.60)* Mpa
25 sec. elapsed and
Below 3.19(3.49)* Mpa
25 sec. elapsed and
Below 3.78MPa
25 sec. elapsed and
below 3.24(3.54)* MPa
Compressor rotation speed
degrease - 18.5 rps (-15.0 rps)
every30 sec. until cancel
condition.
( ): AJ* 108/ 126/ 144/ 162L
*The value in ( ) , when the compressor is operating more than 30Hz.
Pattern 1
Above 4.00MPa
5 minutes elapsed and
Below 3.50MPa
Corresponding outdoor unit
stops
Pattern 2
Pattern 1 generated 3
times within 60 minutes
10minutes elapsed and
below 3.50MPa
Corresponding outdoor unit
stops & Error display
Pattern 3
Pattern 1 generated 3
times within 30 minutes
Error reset (F3-40)
executed after power
turned on again
Compressor stopped
(permanent stop)
& Error display
Start condition Release condition
Pattern 1
Pressure SW operate
(More than 4.20MPa
detects)
5 minutes elapsed and
pressure SW reset
(3.2MPa)
Corresponding outdoor unit
stops
Pattern 2
Pattern 1 generated
3 times within 60
minutes
10 minutes elapsed and
pressure SW reset
(3.2MPa)
Corresponding outdoor unit
stops & Error display