Configuration; Overview: Configuration; Making Field Settings; About Making Field Settings - Daikin VRV IV+ RYYQ12U7Y1B Series Installer And User Manual

The power supply MUST be clamped to the plastic bracket using
field supplied clamp material to prevent external force being applied
to the terminal. The green and yellow striped wire MUST be used for
earthing only.
8~12 HP
a c b d
14~20 HP
a c b d
a Power supply (380~415 V, 3N~ 50 Hz)
b Fuse
c Earth leakage protector
d Earth wire
e Power supply terminal block
f Connect each power wire: RED to L1, WHT to L2, BLK to
L3 and BLU to N
g Earth wire (GRN/YLW)
h Tie wrap
i Cup washer
j 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
7

Configuration

7.1

Overview: Configuration

This chapter describes what you have to do and know to configure
the system after it is installed.
It contains information about:

▪ Making field settings

▪ Energy saving and optimum operation
▪ Using the leak detection function
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
RYYQ+RYMQ+RXYQ8~20U7Y1B
VRV IV+ heat pump
4P546228-1 – 2018.09
7.2 Making field settings
7.2.1

About making field settings

To continue the configuration of the VRV IV heat pump system, it is
e
required to give some input to the PCB of the unit. This chapter will
describe how manual input is possible by operating the push
f
buttons/DIP switches on the PCB and reading the feedback from the
7‑segment displays.
g
i Making settings is done via the master outdoor unit.
j
Next to making field settings it is also possible to confirm the current
h
operation parameters of the unit.
Push buttons and DIP switches
Item
e
Push buttons
f
g
i
j
h
DIP switches
See also:
▪ "7.2.2 Field setting components" on page 38
▪ "7.2.3 To access the field setting components" on page 38
PC configurator
For VRV IV heat pump 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: "7.2.9 To connect the PC configurator to the outdoor
unit" on page 43.
Mode 1 and 2
Mode
Mode 1
(monitoring
settings)
Mode 2
(field settings)
See also:
▪ "7.2.4 To access mode 1 or 2" on page 38
7 Configuration
Description
By operating the push buttons it is possible to:
▪ Perform special actions
refrigerant charge, testrun, etc).
▪ Perform field settings (demand operation,
low noise, etc).
By operating the DIP switches it is possible to:
▪ DS1 (1): COOL/HEAT selector (refer to the
manual of the cool/heat selector switch).
OFF=not installed=factory setting
▪ DS1 (2~4): NOT USED. DO NOT CHANGE
THE FACTORY SETTING.
▪ DS2 (1~4): NOT USED. DO NOT CHANGE
THE FACTORY SETTING.
Description
Mode 1 can be used to monitor the current
situation of the outdoor unit. Some field setting
contents can be monitored as well.
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.
Installer and user reference guide
(automatic
37