Installation manual
23
REMQ8~16P7Y1B
VRVIII System air conditioner
4PW37156-1
Location of the dip switches, LEDs and buttons
LED state
Throughout the manual the state of the LEDs is indicated as follows:
Setting the push button switch (BS1~5)
Function of the push button switch which is located on the outdoor
unit PCB (A1P):
The figure shows state of the LED indications when the unit is
shipped from the factory.
Check operation procedure
1
Turn the power on for the outdoor unit and the indoor unit.
Be sure to turn the power on at least 6 hours before operation
inorder to have power running to the crank case heater.
2
Make sure that transmission is normal by checking the LED
display on the outdoor unit circuit board (A1P). (If transmission
is normal, each LED will be displayed as shown below.)
Setting the mode
The set mode can be changed with the
button according
to the following procedure:
■
For setting mode 1: Press the
button once, the
H1P LED is off
x
. This mode is not available for heat recovery
units.
■
For setting mode 2: Press the
button for
5 seconds, the H1P LED is on
w
.
If the H1P LED is blinking
c
and the
button is pushed
once, the setting mode will change to setting mode 1.
Setting mode 2
The H1P LED is on.
Setting procedure
1
Push the
button according to the required function
(A~H). The LED indication that matches the required function is
shown below in the field marked
:
2
When the
button is pushed, the current setting is
defined.
3
Push the
button according to the required setting
possibility as shown below in the field marked
.
3.1 Possible settings for function A, B, F, and G are
(ON) or
(OFF).
1
LED H1~8P
2
Push button switches
BS1~BS5
3
DIP switch 1 (DS1: 1~4)
4
DIP switch 2 (DS2: 1~4)
5
DIP switch 3 (DS3: 1~2)
x
OFF
w
ON
c
Blinking
For changing the set mode
For field setting
For field setting
For test operation
For resetting the address when the wiring is changed or
when an additional indoor unit is installed
LED
display
(Default
status
before
delivery)
Micro-
computer
operation
monitor
Mode
Ready
/Error
Cooling/Heating
changeover
Low
noise
Demand
Multi
Indivi-
dual
Bulk
(master)
Bulk
(slave)
HAP
H1P
H2P
H3P
H4P
H5P
H6P
H7P
H8P
Single outdoor
unit system
c
x
x
w
x
x
x
x
x
Multiple
outdoor
unit
system
Master
unit
(a)
(a) The state of the H8P (multi) LED in a multi-system shows wich unit is the master
unit (
w
), slave 1 unit (
c
) or slave 2 unit (
x
).
Only the master unit is connected to the indoor units with interunit wiring.
c
x
x
w
x
x
x
x
w
Slave
unit
1
c
x
x
x
x
x
x
x
c
Slave
unit
2
c
x
x
x
x
x
x
x
x
1
2
4
3
5
BS2
SET
BS1
MODE
BS3
RETURN
BS4
TEST
BS5
RESET
H1P
H2P
H3P
H4P
H5P
H6P
H7P
MODE
TEST:
HWL:
IND
MASTER
SLAVE
L.N.O.P DEMAND
C/H SELECT
H8P
MULTI
BS1 MODE
BS2 SET
BS3 RETURN
BS4 TEST
BS5 RESET
NOTE
If you get confused in the middle of the setting
process, push the
button. Then it returns to
setting mode 1 (H1P LED is off).
Possible functions
A
additional refrigerant charging operation.
B
refrigerant recovery operation/vacuuming operation.
C
automatic low noise operation setting at nighttime.
D
low noise operation level setting (
) via the external
control adapter.
E
power consumption limitation setting (
) via the external
control adapter.
F
enabling function of the low noise operation level setting
(
) and/or power consumption limitation setting
(
) via the external control adapter (DTA104A61/62).
G
high static pressure setting
H
evaporating temperature setting
H1P
H2P
H3P
H4P
H5P
H6P
H7P
A
w x w x w x
x
B
w x w x w x w
C
w x w x w w x
D
w x w w x
x w
E
w x w w w w x
F
w x
x w w x
x
G
w x w x
x w x
H
w x
x w x
x
x
H1P
H2P
H3P
H4P
H5P
H6P
H7P
w x
x
x
x c x
(a)
(a) This setting = factory setting
w x
x
x
x
x c
BS1 MODE
BS1 MODE
BS1 MODE
BS1 MODE
BS1 MODE
BS2 SET
L.N.O.P
DEMAND
L.N.O.P
DEMAND
BS3 RETURN
BS2 SET
ON
OFF
ON
OFF
