16 Configuration
Installation and operation manual
35
REYQ8~20+REMQ5U7Y1B
VRV IV+ heat recovery
4P546222-1B – 2020.10
2
Turn ON the power and leave it on for 6 hours.
Result:
The compressor will heat up and evaporate any
refrigerant in the compressor.
3
Measure the insulation resistance again.
16
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
16.1
Making field settings
16.1.1
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:
▪
▪
"To access the field setting components"
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:
"To connect the PC configurator to the outdoor
38].
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 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:
▪
▪
▪
▪
▪
16.1.2
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
16.1.3
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.
Make sure to re-attach the inspection cover into the electronic
component box cover and to close the front plate's inspection cover
after the job is finished. During operation of the unit the front plate of
the unit should be attached. Settings are still possible to be made
through the inspection opening.
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