Daikin LRYEQ16AY1 Service Manual page 107

SiBE811001EB
(7) High pressure protection control
To reset, turn OFF the power switch (or operation switch) and turn it restart again.
Error code "
(8) Low pressure protection control
Stopped temporarily when BU_LP < -0.015 MPa. Restarted after 2-10 minutes standby.
This control sends "
(9) Overheat protection control
(10) Droop control
Droop control
General current droop
• When the current set TA is reached or exceeded, the INV_STEP goes down.
(Current limit = INV_primary current)
INV. Current droop
• When the set INV. secondary current (Am) is reached or exceeded, the INV_STEP
goes down.
INV. radiation fin thermistor
• When the set fin temperature (Fm) is reached or exceeded, the INV_STEP goes down.
(11) Earth leakage detection control
Detection during initial power-up
The system will check for earth leakage while the compressor is running for the first 10 seconds after power-up. A
compressor will stop abnormally if the power breaker is turned OFF or the earth leakage detector PCB is activated
during the 10-second period describe above.
With the operation switch in OFF, reset the system by turning on the power OFF and then restart again.
(12) Open phase control
Open phase
energization ON
CONVENI-PACK
Pressure switch (operation pressure: 2.5 MPa) is activated causing abnormal stop of
compressor
EJ
" is displayed on the remote controller.
E4
" to AIRNET without abnormal stop of the compressor.
If any of the following conditions is met, the system will cease operation. The compressor
restarts once the unit has been on standby for 2-6 minutes AND BU_Td < 90°C. "
displayed on the remote controller LED and "
particular compressor repeats this procedure 10 times, "
repeats it 15 times, the compressor will stop. "
F3
and " " is displayed on the booster unit PCB LED.
• Discharge pipe temperature > 105°C continues for 90 consecutive sec. or more
OR • Discharge pipe temperature > 110°C continues for 15 consecutive sec. or more
• Discharge pipe temperature > 120°C
If the following condition is met, the relevant compressor will stop immediately and declare a
problem (abnormal stop).
Discharge pipe temperature > 125°C
• DIP switch (Open phase energization at A2P_DS1-2): OFF
OR • BU_Tf < 79˚C
• BU_Td > 43˚C
• DIP switch (Open phase energization at A2P_DS1-2): ON
• BU_Tf < 65˚C
&
• 1 hour after compressor stops
• BU_Td < 40˚C
Outline of Functions (Outdoor unit)
F3
" is displayed on the booster PCB LED. If a
F3
" will be sent to the AIRNET; if it
EJ
" is displayed on the remote controller LED
10.5A (Factory setting)
TA
Am
Fm
energization OFF
EJ
" is
12.7A
78˚C
Open phase
106