Installation manual
15
RMXS112~160D7V3B
Super Multi Plus System air conditioner
4PW19516-1B
3
Power supply wiring and transmission wiring
Use a designated power supply and transmission wiring and
make sure that it has been carried out according to the
instructions described in this manual, according to the wiring
diagrams and according to local and national regulations.
4
Pipe sizes and pipe insulation
Make sure that correct pipe sizes are installed and that the
insulation work is properly executed.
5
Additional refrigerant charge
The amount of refrigerant to be added to the unit should be
written on the included "Added Refrigerant" plate and attached
to the rear side of the front cover.
6
Insulation test of the main power circuit
Using a megatester for 500
V, check that the insulation
resistance of 2 M
Ω
or more is attained by applying a voltage of
500 V DC between power terminals and earth. Never use the
megatester for the transmission wiring.
7
Stop valves
Be sure that the stop valves are open on both liquid and gas
side.
11.3. Field setting
If required, carry out any field setting according to the following
instructions. Refer to the service manual for more details.
Handling the switches
When carrying out field settings, operate the
switches with an insulated stick (such as a ball-
point pen) to avoid touching of live parts.
Location of the dipswitches, leds and buttons
Led state
Throughout the manual the state of the leds is indicated as follows:
OFF
ON
blinking
Setting the dip switches DS1 and DS2
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.
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 led
is off
.
■
For setting mode 2: Press the
button for
5 seconds, the H1P led is on
.
If the H1P led is blinking
and the
button is pushed
once, it will change to setting mode 1.
Setting mode 1
The H1P led is off.
No settings must be done in mode 1 for these units. Mode 1 is only
used for checking the status and test operation. See
"11.4. Test operation" on page 16
1
Led H1P~H7P
2
Push button switches BS1~BS5
3
Dip switch 2 (DS2: 1~4)
4
Dip switch 1 (DS1: 1~4)
What to set with dip switch DS1
1
COOL/HEAT selector
(
= not installed = factory setting)
2~4
NOT USED
DO NOT CHANGE THE FACTORY SETTING.
What to set with dip switch DS2
1~4
NOT USED
DO NOT CHANGE THE FACTORY SETTING.
1
2
3
4
A1P
OFF
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 and BP unit is installed
NOTE
In case you change the system in one of the following
ways:
-
add or remove a BP unit and/or an indoor unit;
-
replace the outdoor unit PCB;
-
move the system to another location and
re-install it,
it is required to push and hold the
button
for 5 seconds after the change is finished. Otherwise,
the system will malfunction.
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).
IND
H3P
MASTER
H4P
L. N. O. P
H6P
SLAVE
H5P
DEMAND
H7P
MODE
H1P
TEST:
HWL:
H2P
C/H
SELECTOR
BS5
RESET
BS4
TEST
BS3
RETURN
BS2
SET
BS1
MODE
BS1 MODE
BS2 SET
BS3 RETURN
BS4 TEST
BS5 RESET
BS5 RESET
BS1 MODE
BS1 MODE
BS1 MODE
BS1 MODE
BS1 MODE
