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Daikin RXYQ5PY1 Service Manual Page 258

R-410a heat pump 50hz/60hz cooling only 50hz.
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Heat Pump / Cooling Only 50Hz (RX(Y)Q5~54P)
[How to Check How Many Units are Connected]
It is possible to find out how many indoor or outdoor unit in the system are turned on by
operating the push button on the PC-board (A1P) of outdoor unit (In case of multi system
master unit).
Follow the procedure below to check how many indoor or outdoor units are turned on.
(LED display: 3 ...OFF 4 ...ON 5 ...Blinking
(1) Press the MODE button (BS1) once, and set the MONITOR MODE (H1P:
Blinking).
(2) Press the SET button (BS2) the number of times
until the LED display matches that at right.
(3) Press the RETURN button (BS3) and read the number of units from the
display of H2P through H7P.
[Reading Method]
The display of H2P through H7P should be read as a binary number, with 5
standing for "1" and 3 standing for "0".
Ex: For the LED display at right, this would be "0 1 0 1 1 0 ",
which would mean 22 units are connected.
Note: "000000" indicates 64 units.
(4) Press the MODE button (BS1) once. This returns to Setting Mode 1
(default).
Note:
Press the "MODE button" (BS1) if you get confused while operating.
This returns to Setting Mode 1 (default).
1.11.2 Procedure of Adding Refrigerant charging and check operation
Warning
! Make sure to close the EL. COMPO. BOX lid before turning on the power when performing
! Perform the setting on the PC-board (A1P) of the outdoor unit and check the LED display
! Use an insulated rod to operate the push buttons via the EL. COMPO. BOX's inspection
Caution:
! Make sure to use the protect tool (protective groves and goggles) when charging the
! Due to a danger of liquid hammer, the refrigerant must not be charged over the allowable
! Do not perform the refrigerant charging operation under working for the indoor unit.
! When opening the front panel, make sure to take caution to the fan rotation during the
Note:
! If operation is performed within 12 minutes after the indoor and outdoor units are turned on,
! In order to ensure uniform refrigerant distribution, it may take up to around 10 minutes for the
252
32 × 0 + 16 × 1 + 8 × 0 + 4 × 1 + 2 × 1 + 1 × 0 = 22 units
Electric Shock Warning:
the refrigerant charging operation.
after the power is on via the inspection door which is in the EL. COMPO. BOX lid.
door.
There is a risk of electric shock if you touch any live parts, since this operation must be
performed with the power on.
refrigerant.
maximum amount when charging the refrigerant.
working.
After the outdoor unit stops operating, the fan may keep rotation for a while.
H2P will be lit on and the compressor will not operate.
compressor to start up after the unit starting operating. This is not a malfunction.
...Uncertain)
H1P H2P H3P H4P H5P H6P H7P
For checking the
number of outdoor
units: eight times
For checking the
number of indoor units:
five times
LED display
5
3
3
3
3
5
3
3
4
3
5
3
3
3
4
5
5
3
5
3
5
3
3
4
3
3
Installation Manual
SiEN34-705
3
3
3
3
3
4
5
3
3
3

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  • GMacD Dec 22, 2015 11:58:
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