Standard Operating Conditions; Phase Protector (Optional) - Daikin FDM75DXV1 Installation Manual

Cooling
Temperature
Minimum indoor temperature
Maximum indoor temperature
Minimum outdoor temperature
Maximum outdoor temperature
Ts: Dry bulb temperature.
The unit with Scroll Compressor can only rotate in one direction. For this reason, a protective device (phase protector) is fitted
to prevent incorrect wiring of the electrical phases. When the three phases are not connected correctly, the phase sequencer
operates, and the unit will not start. This device is located in the control box of the outdoor unit.
The following table shows the LED indicator light for phase protector under normal operation and fault conditions.
LED
Description
Normal operation
Reverse phase
T phase missing
S phase missing
R phase missing
S &T phase missing +
+
Overload
Sensor missing +
ON
NOTES
1. "+" indicates additional functions for PP01 phase protector.
2. When R phase missing, no LED or buzzer will indicate the error, but relay 71 and relay 81 will cut off.

STANDARD OPERATING CONDITIONS

Ts °C
16
32
16
46
Th: Wet bulb temperature.

PHASE PROTECTOR (OPTIONAL)

PW P_R P_S
(Red) (Yellow) (Yellow)
OFF
! WARNING
• Troubleshooting must be performed by qualified personnel.
Heating
Temperature
Th °C
Minimum indoor temperature
11
Maximum indoor temperature
23
Minimum outdoor temperature
11
Maximum outdoor temperature
24
P_T
(Yellow)
Switch off the unit. Check the 3 phase wiring.
Switch off the unit. Check the 3 phase wiring.
Switch off the unit. Check the 3 phase wiring.
Switch off the unit. Check the 3 phase wiring.
Switch off the unit. Check the 3 phase wiring.
High discharge temperature. Check the refrigerant system.
Switch off the unit. Plug in sensor.
Fast Blink
1-22
Ts °C
16
30
-5
24
Actions
-
Th °C
-
-
-6
18