Overview Of Unit; Opening The Unit; Main Components In The Unit - Daikin RXYQ6BRY16 Installation Manual

5.

Overview of unit

5.1 Opening the unit

To gain access to the unit, front plates need to be
opened as follows:
12x
12x
Once the front plates open, the electrical component
box can be accessed by removing the electrical
component box cover as follows.
5x
For service purposes, the push buttons on the main
PCB need to be accessed. To access these push
buttons, the electrical component box cover does not
need to be opened. See "13. Making field settings".
DANGER: ELECTRICAL SHOCK
See "2. General safety precautions".
DANGER: DO NOT TOUCH PIPING
AND INTERNAL PARTS.
See "2. General safety precautions".
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5.2 Main components in the unit

For all the models a piping diagram and outlook
drawing are available.
Depending on the model type some components in the
main component list may not be existing in the unit.
Main components (see 5.2.1, 5.2.2, 5.2.3)
12x
1 Compressor (M1C)
2 Compressor (M2C)
3 Heat exchanger
4 Propeller fan
5 Fan motor (M1F, M2F)
6 Accumulator
7 Oil separator
8 Electronic expansion valve, main (Y1E)
9 Electronic expansion valve, refrigerant cooling IPM
(Y2E)
10 Electronic expansion valve, subcool heat exchanger
(Y3E)
11 Electronic expansion valve, refrigerant auto charge (Y4E)
12 Electronic expansion valve, refrigerant cooling air (Y5E)
13 Electronic expansion valve, heat exchanger [Sub] (Y6E)
14 Solenoid valve, oil return M1C (Y1S)
15 Solenoid valve, oil return M1C (Y2S)
16 Solenoid valve, oil return M2C (Y1S)
17 Solenoid valve, hot gas bypass (Y3S)
18 Solenoid valve, accumulator oil return (Y4S)
19 Solenoid valve, 4-Way valve (Y5S)
20 Stop valve, gas
21 Stop valve, liquid
22 Stop valve, automatic refrigerant charge
23 Refrigerant cooled heat sink PCB, Inside of the
electrical component box
24 Refrigerant cooled heat sink air, Outside of the
electrical component box
25 Electrical component box
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