Overall Checking; Phase Protector (Optional) - Daikin FCRN50EXV1 Installation Manual

• Ensure that:
1) The unit has been mounted solidly and rigid in
position.
2) The piping and connections are leak-proof after the
charging.
3) Proper wiring has been installed.
• Drainage check
– pour some water into the left side of the drain pan (the
drainage is at the right side of the unit).
• Test run:
1) Conduct a test run on the unit after having perform the
water drainage test and the gas leakage test.
2) Check the following items:
a) Is the electrical plug inserted firmly into the socket?
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 protector
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.
Description
Normal operation
Reverse phase
T phase missing
S phase missing
R phase missing
S &T phase missing
Overload +
Sensor missing
ON
NOTE
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.
1 IM-5CKE-0912(0)DAIKIN-EN.indd 23 1 IM-5CKE-0912(0)DAIKIN-EN.indd 23

OVERALL CHECKING

PHASE PROTECTOR (OPTIONAL)

LED PW P_R P_S
(Red) (Yellow) (Yellow)
+
+
OFF
b) Is there any abnormal sounds from the unit?
c) Is there any abnormal vibrations on the unit or the
piping?
d) Is the drainage of water smooth?
• Confirm that:
1) The condenser fan is running. Check the warm air
blowing from the condensing unit.
2) The evaporator blower is running and discharge cool
air.
3) The suction (low side) pressure is as recommended.
4) The remote controller incorporates a 3-minute delay
protection in the circuit, whereby the outdoor condensing
unit requires about 3 minutes delay before it can start
operating.
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
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