To Access Mode 1 Or 2; To Use Mode 1 (And Default Situation) - Daikin RKXYQ5T7Y1B Installation And Operation Manual

6 Configuration
DIP switches
Only change the factory settings if you install a cool/heat selector
switch.
DS1‑1 COOL/HEAT selector (refer to the manual of the
cool/heat selector switch). OFF=not
installed=factory setting
DS1‑2 NOT USED. DO NOT CHANGE THE FACTORY
SETTING.
Push buttons
Use the push buttons to make the field settings. Operate the push
buttons with an insulated stick (such as a closed ball-point pen) to
avoid touching of live parts.
BS1 MODE: For changing the set mode
BS2 SET: For field setting
BS3 RETURN: For field setting
BS4 TEST: For test operation
BS5 RESET: For resetting the address when the wiring is
changed or when an additional indoor unit is installed
7‑LEDs display
The display gives feedback about the field settings, which are
defined as [Mode-Setting]=Value.
H1P Shows the mode
H2P~H7P Shows the settings and values, represented in binary code
H8P NOT used for field settings, but used during initialisation
Example:
[ - 32 + 16 + 8 + 4 + 2 + 1]
H1P
H1P H2P H3P H4P H5P H6P H7P
(H1P OFF)
(H1P flashing)
(H1P ON)
0 + 0 + 8 + 0 + 0 + 0
(H2P~H7P = binary 8)
0 + 0 + 0 + 4 + 0 + 0
(H2P~H7P = binary 4)
6.1.4

To access mode 1 or 2

After the units are turned ON, the display goes to its default
situation. From there, you can access mode 1 and mode 2.
Initialisation: default situation
NOTICE
Be sure to turn on the power 6 hours before operation in
order to have power running to the crankcase heater and
to protect the compressor.
Turn on the power supply of the compressor unit, heat exchanger
unit, and all indoor units. When the communication between the
compressor unit, heat exchanger unit, and indoor units is established
and normal, the display indication state will be as below (default
situation when shipped from factory).
Installation and operation manual
16
If the default situation is not displayed after 10~12 minutes, check
the malfunction code on the indoor unit user interface. Solve the
malfunction code accordingly. First, check the communication wiring.
Switching between modes
Use BS1 to switch between the default situation, mode 1 and
mode 2.
b
Description
Default situation
Mode 1
Mode 2
6.1.5
Setting 8
In mode 1 (and in default situation) you can read out some
(in mode 2)
information.
Value 4
Example: 7‑LEDs display – Default situation
(in mode 2) You can read out the status of low noise operation as follows:
Example: 7‑LEDs display – Mode 1
You can read out setting [1‑5] (= the total number of connected units
(heat exchanger unit + indoor units)) as follows:
10~12 min
a Power ON
b Default situation
c LED indication when there is a malfunction
a
c
a Default situation (H1P OFF)
b Mode 1 (H1P flashing)
c Mode 2 (H1P ON)
BS1 Press BS1.
BS1 [5 s] Press BS1 for at least 5 s.
INFORMATION
If you get confused in the middle of the process, press BS1
to return to the default situation.

To use mode 1 (and default situation)

# Action
1 Make sure the LEDs are
showing the default situation.
2 Check the status of LED
H6P.
# Action
1 Start from the default
situation.
VRV IV compressor unit for indoor installation
a
b
c
Button/display
(H1P OFF)
H6P OFF: Unit is currently
not operating under low noise
restrictions.
H6P ON: Unit is currently
operating under low noise
restrictions.
Button/display
RKXYQ5T7Y1B
4P408443-1 – 2015.07