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16.1
Making field settings
16.1.1
About making field settings
To configure the heat pump system, you must give input to the
compressor unit's main PCB (A1P). This involves the following field
setting components:
▪ Push buttons to give input to the PCB
▪ A display to read feedback from the PCB
▪ DIP switches (only change the factory settings if you install a cool/
heat selector switch).
Field settings are defined by their mode, setting and value. Example:
[2‑8]=4.
PC configurator
You can also make 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:
"16.1.9 To connect the PC configurator to the compressor
unit" [ 4 36].
Mode 1 and 2
Mode
Mode 1
Mode 1 can be used to monitor the current
situation of the compressor unit. Some field
(monitoring
setting contents can be monitored as well.
settings)
Mode 2
Mode 2 is used to change the field settings of
the system. Consulting the current field setting
(field settings)
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.
16.1.2
To access the field setting components
See
"13.2.1 To open the compressor
16.1.3
Field setting components
The components to make field settings differ depending on the
model.
Model
Field setting components
5 HP
▪ Push buttons (BS1~BS5)
▪ 7‑LEDs display (H1P~H7P)
▪ H8P: LED for indication during initialisation
▪ DIP switches (DS1)
8 HP
▪ Push buttons (BS1~BS3)
▪ 7‑segments display (
▪ DIP switches (DS1 and DS2)
RKXYQ5T8 + RKXYQ8T7Y1B
VRV IV compressor unit for indoor installation
4P499900-1B – 2021.12
Description
unit" [ 4 18].
)
5 HP
A1P
TEST/
MODE
IND
MASTER
SLAVE
HWL
H1P
H2P
H3P
H4P
H5P
BS1
BS2
BS3
MODE
SET
RETURN
TEST
ON ( ) OFF ( ) Flashing ( )
ON (
) OFF (
DIP switches
Only change the factory settings if you install a cool/heat selector
switch.
Model
5 HP
▪ 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.
8 HP
▪ DS1‑1:
"12.3.1 Possible options for the compressor unit
and heat exchanger
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.
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.
The push buttons differ depending on the model.
Model
5 HP
▪ 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
8 HP
▪ BS1: MODE: For changing the set mode
▪ BS2: SET: For field setting
▪ BS3: RETURN: For field setting
7‑LEDs display or 7-segments display
The display gives feedback about the field settings, which are
defined as [Mode-Setting]=Value.
The display differs depending on the model.
16 Configuration
8 HP
A1P
L.N.O.P.
DEMAND
MULTI
H6P
H7P
H8P
BS4
BS5
RESET
ON
DS1
OFF
ON
DS1
1 2 3 4
OFF
1 2
ON
DS2
OFF
1 2 3 4
) Flashing (
)
DIP switch
COOL/HEAT
selector
unit" [ 4 17]). OFF=not
Push buttons
Installation and operation manual
(see
29
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