Daikin REYQ14T7Y1B - 6 Configuration; 6.1 Making field settings; 6.1.1 About making field settings; 6.1.2 Field setting components

6 Configuration
Installation and operation manual
23
REYQ8~20+REMQ5T7Y1B
VRV IV system air conditioner
4P353996-1E – 2018.04
i Clamp (field supplied)
j Cup washer
k When connecting the earth wire, it is recommended to
perform curling.
Multiple outdoor units
To connect the power supply for multiple outdoor units to each other,
ring tongues have to be used. No bare cable can be used.
In that case, the ring washer that is installed by default should be
removed.
Attach both cables to the power supply terminal as indicated below:
L1 L2 L2 N
6 Configuration
INFORMATION
It is important that all information in this chapter is read
sequentially by the installer and that the system is
configured as applicable.
DANGER: RISK OF ELECTROCUTION
6.1 Making field settings
6.1.1 About making field settings
To continue the configuration of the VRV IV heat recovery system, it
is required to give some input to the PCB of the unit. This chapter
will describe how manual input is possible by operating the push
buttons on the PCB and reading the feedback from the 7‑segment
displays.
Making settings is done via the master outdoor unit.
Next to making field settings it is also possible to confirm the current
operation parameters of the unit.
Push buttons
Performing special actions (automatic refrigerant charge, test run,
etc.) and making field settings (demand operation, low noise, etc.)
happens by way of operating the push buttons.
See also:
▪ "6.1.2Field setting components"on page23
▪ "6.1.3To access the field setting components"on page23
PC configurator
For VRV IV heat recovery system it is alternatively possible to make
several commissioning field settings through a personal computer
interface (for this, option EKPCCAB is required). The installer can
prepare the configuration (off-site) on PC and afterwards upload the
configuration to the system.
See also: "6.1.9 To connect the PC configurator to the outdoor
unit"on page26.
Mode 1 and 2
Mode Description
Mode 1
(monitoring
settings)
Mode1 can be used to monitor the current
situation of the outdoor unit. Some field setting
contents can be monitored as well.
Mode Description
Mode 2
(field settings)
Mode2 is used to change the field settings of
the system. Consulting the current field setting
value and changing the current field setting
value is possible.
In general, normal operation can be resumed
without special intervention after changing field
settings.
Some field settings are used for special
operation (e.g., 1 time operation, recovery/
vacuuming setting, manual adding refrigerant
setting, etc.). In such a case, it is required to
abort the special operation before normal
operation can restart. It will be indicated in
below explanations.
See also:
▪ "6.1.4To access mode 1 or 2"on page24
▪ "6.1.5To use mode 1"on page24
▪ "6.1.6To use mode 2"on page24
▪ "6.1.7Mode 1: Monitoring settings"on page24
▪ "6.1.8Mode 2: Field settings"on page25
6.1.2 Field setting components
Location of the 7‑segment displays, buttons and DIP switches:
a b
BS1 BS2
DS1 DS2
BS3
X27A
BS1 MODE: For changing the set mode
BS2 SET: For field setting
BS3 RETURN: For field setting
DS1, DS2 DIP switches
a 7‑segment displays
b Push buttons
6.1.3 To access the field setting components
It is not required to open the complete electronic component box to
access the push buttons on the PCB and read out the 7‑segment
display(s).
To access you can remove the front inspection cover of the front
plate (see figure). Now you can open the inspection cover of the
electrical component box front plate (see figure). You can see the
three push buttons and the three 7‑segment displays and DIP
switches.
2×
a
b
c
a Front plate
b Main PCB with 3 7‑segment displays and 3 push buttons
c Electrical component box service cover
Operate the switches and push buttons with an insulated stick (such
as a closed ball-point pen) to avoid touching of live parts.