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9.13. 2 procedures for adding refrigerant
Procedure 1: Charging while the outdoor unit is at a standstill
See
figure 6
for Sky Air or room air conditioner applications or
figure 7
for VRV applications.
1
Determine the weight of refrigerant to be charged additionally
referring to the item "Additional refrigerant charge" in
calculate the additional refrigerant to be charged" on page 12
Sky Air or room air conditioner applications or
the additional refrigerant to be charged" on page 13
applications, and fill in the amount in the "Additional refrigerant
charge label" attached to the unit.
2
After the vacuum drying is finished, open valve A and charge the
additional refrigerant in its liquid state through the liquid stop
valve service port taking into account following instructions:
-
Turn on the power of the outdoor unit and indoor units.
-
Check that gas and liquid stop valves are closed.
-
Stop the compressor and charge the specified weight of
refrigerant.
I
To avoid compressor breakdown. Do not charge the
refrigerant more than the specified amount.
I
If the total refrigerant cannot be charged while the
outdoor unit is at a standstill, it is possible to charge
the refrigerant by operating the outdoor unit using the
refrigerant charge function (refer to
on page
21) and follow
the outdoor unit is operating" on page
Procedure 2: Charging while the outdoor unit is operating
1
Close the front panel and turn on the power to all indoor units
and the outdoor unit.
2
Completely open the gas side stop valve and liquid side stop
valve. Valve A must be left fully closed.
3
Open valve A immediately after starting of the compressor.
4
Charge the additional refrigerant in its liquid state through the
service port of the liquid line stop valve.
5
While the unit is at a standstill and under setting mode 2 (refer to
"11.2. Checks before initial start-up" on page
mode" on page
21), set the required function A (additional
refrigerant charging operation) to
starts. The blinking H2P led indicates test operation and the
remote controller indicates
(external control).
6
When the specified amount of refrigerant is charged, push the
button. Then operation stops.
BS3 RETURN
I The operation automatically stops within 30 minutes.
I If the refrigerant charge cannot be finished within 30 minutes,
repeat step 5.
I If the operation stops immediately after restart, there is a
possibility that the system is overcharged.
The refrigerant cannot be charged more than this amount.
7
After the refrigerant charge hose is removed, make sure to close
valve A.
Installation manual
16
"How to
for
"How to calculate
for VRV
"Setting mode 2"
"Procedure 2: Charging while
16.
20,
"Setting the
(ON). Then operation
ON
(test operation) and
10. E
LECTRICAL WIRING WORK
I
All wiring must be performed by an authorized
electrician.
I
All field supplied components and all electric
construction should comply with the applicable local
and national codes.
To persons in charge of electrical wiring work:
Do not operate the unit until the refrigerant piping is
complete. (Running it before the piping is ready will break
the compressor.)
10.1. Internal wiring – Parts table
L .............................Live
N.............................Neutral
............Field wiring
.....................Terminal strip
..........................Connector
..........................Protective earth (screw)
...........................Connection
........................Relay connector
............................Functional earthing
...........................Terminal
..........................Movable connector
..........................Fixed connector
BLU ........................Blue
BRN........................Brown
GRN .......................Green
RED........................Red
WHT .......................White
YLW........................Yellow
ORG .......................Orange
BLK ........................Black
A1P ........................Printed circuit board (main)
A2P ........................Printed circuit board (inverter)
A3P ................*......Printed circuit board (noise filter)
A4P ................*......Printed circuit board (C/H selector)
BS1~BS5................Push button switch (mode, set, return, test,
reset)
C1~C3 ....................Capacitor
C4...................*......Capacitor
DS1 ........................DIP switch
E1HC......................Crankcase heater
F1U, F4U........*......Fuse (T 6.3 A/250 V)
F1U (A1P) ..... #......Fuse (T 6.3 A/250 V)
F3U (A1P) ..... #......Fuse (T 6.3 A/250 V)
F4U (A1P) ..... #......Fuse (T 6.3 A/250 V)
F6U ................*......Fuse (T 5.0 A/250 V)
FINTH.............*......Thermistor (fin)
H1P~H8P ...............Light emitting diode (service monitor orange)
Prepare, test: blinking
H2P ........................Malfunction detection: light up
HAP ................*......Light emitting diode (service monitor green)
HAP (A1P)..... #......Light emitting diode (service monitor green)
RXYSQ6TAV1B
VRV IV-S System air conditioner
4P482260-1 – 2017.03
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