5 RSW1 & DSW5 (Refrigerant cycle number setting)
. Setting is required. Setting positions before shipment are all OFF.
Refrigerant cycle number setting
DSW5 (Tens digit)
RSW1 (Units digit)
Ex.) Set at number 5 cycle
DSW5
ON
OFF
Set all pins OFF
RSW1
Set at “5”
ON
OFF
Setting
position
Set by inserting
slotted screwdriver
into the groove.
Before shipment, DSW5 and RSW1 are set to “0”. Max. 64 cycles are available to set when all
the equipment to be connected are corresponding to H-LINK ΙΙ. Max. 16 cycles when the units
corresponding/ non-corresponding to H-LINK ΙΙ are combined.
6 DSW7 (Fuse recovery)
. (This dip switch is located on
PCB1.)
* In the case of applying high voltage to the terminal 1 and
2 of TB2, the fuse (0.5A) on the PCB is cut. In such a case,
firstly reconnect the wirings correctly to TB2, and then turn
on Number 1 pin.
Factory setting
High voltage
1
2
ON
1
2
ON
7 DSW2 / DSW9 (Optional function setting)
. No setting is
required. Setting positions before shipment are all OFF.
DSW9
DSW2
1
2
ON
For example, set the number 1 pin of DSW9 to "ON" side when
indoor unit C is set as "Identifying indoor units installed fro side
by side".
Indoor
Unit A
Indoor
Unit B
Indoor
Unit C
Indoor
Unit D
DSW2-3
OFF
ON
OFF
ON
DSW9-1
OFF
OFF
ON
ON
Factory setting for DSW2-3 and DSW9-1 is "OFF".
?
N O T E
When using the receiver kit, setting DSW2 and DSW9 on the PCB for
the indoor unit is not required. Set the function "Identifying indoor units
installed side by side" with the receiver kit instead. For details on this
setting, refer to the "Installation manual" for the receiver kit.
8 SW2 (Remote control switch setting)
. The setting before
shipment is “Wireless”.
* In case of using the wired remote control (PC-ARF(P)
(1)(E)) and the receiver kit (PC-ALHZ1), set the SW2 to
“Wired”. If not, the operation is not available. Connect the
remote control switch cables to terminals A and B at the
terminal board TB2.
Factory setting
Wired remote control
?
N O T E
• The “■” mark indicates position of dip switches. Figures show setting
before shipment.
• When the unit number and the refrigerant cycle are set, record the unit
number and refrigerant cycle to facilitate maintenance and servicing
activities thereafter.
• Turn OFF all the power supply of the indoor unit and the outdoor unit
before Dip Switch setting. If not, the setting is invalid.
• In case of using the wired remote control or receiver kit
PC-ALHZ1 set the SW2 to “Wired”.
17 TEST RUN
Test run should be performed according to this manual and
“Installation & Operation Manual” of the outdoor unit.
!
D A N G E R
• Check to ensure that the electrical resistance is more than 1
megohm, by measuring the resistance between ground and the
terminal of the electrical parts. If not, do not operate the system
until the electrical leakage is found and repaired.
• Do not touch any of the parts at the discharge gas side by hand
while the system is running, since the compressor chamber and
the pipes at the discharge side are heated higher than 90ºC.
!
C A U T I O N
• Supply electrical power to the system for approximately 12 hours
before start-up after long shutdown. Do not start the system
immediately after power supply, it may cause a compressor failure,
because the compressor is not heated well.
• Make sure that the outdoor unit is not covered with snow or ice. If
covered, remove it by using hot water (approximately 50ºC). If the
water temperature is higher than 50ºC, it will cause damage to plastic
parts.
• When the system is started after a shutdown longer than approximately
3 months, it is recommended that the system be checked by your
service contractor.
• Turn OFF the main switch when the system is stopped for a long
period of time. If the main switch is not turned OFF, electricity is
consumed, because the oil heater is always energized during
compressor stopping.
?
N O T E
• Check to ensure that the stop valves of the outdoor unit are fully
opened, and then start the system.
Tes Run
PMML0552 rev.1 - 02/2021 - A10635790A
25
ENGLISH
