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English
COMMISSIONING
1. CHECKLIST BEFORE COMMISSIONING
Do NOT operate the system before the following checks are OK:
The
indoor unit
is properly mounted.
The
outdoor unit
is properly mounted.
The system is properly
grounded
and the ground terminals are tightened.
The
fuses
or locally installed protection devices are installed according to this document, and have NOT
been bypassed.
The
power supply voltage
matches the voltage on the identification label of the unit.
There are NO
loose connections
or damaged electrical components in the switch box.
There are NO
damaged components
or
squeezed pipes
on the inside of the indoor and outdoor units.
There are NO
refrigerant leaks
.
The
refrigerant pipes
(gas and liquid) are thermally insulated.
The correct pipe size is installed and the
pipes
are properly insulated.
The
stop valves
(gas and liquid) on the outdoor unit are fully open.
The following
field wiring
between the outdoor unit and indoor unit has been carried out according to this
document and local codes.
Drainage
Make sure drainage flows smoothly.
Possible consequence
: Condensate water might drip.
The indoor unit receives the signals of the
user interface
.
The specified wires are used for the
interconnection cable
.
2. CHECKLIST DURING COMMISSIONING
To perform an
air purge
.
To perform a
test run
.
Facility Setting* (cooling at low outdoor temperature)
This function is limited only for facilities (the target of air conditioning is equipment (such as computer)).
Never use it in a residence or office (the space where there is a human).
* Only for RX and RK models.
Cutting jumper 6 (J6) on the circuit board will expand the operation range down to 5°F (-15°C). However it will
stop if the outdoor temperature drops below -4°F (-20°C) and start back up once the temperature rises again.
1) Remove the top plate of the outdoor unit. (09/12 class: 3 screws, 18/24 class : 6 screws)
2) Remove the front plate. (09/12 class: 6 screws, 18/24 class : 7 screws)
3) Cut the jumper (J6) of the PCB inside.
●
If the outdoor unit is installed where the heat exchanger of the unit is exposed to direct wind, provide a windbreak wall.
●
Intermittent noises may be produced by the indoor unit due to the outdoor fan turning on and off when using facility settings.
●
Do not place humidifiers or other items which might raise the humidity in rooms where facility settings are being used.
A humidifier might cause dew jumping from the indoor unit outlet vent.
●
Cutting jumper 6 (J6) sets the indoor fan tap to the highest position. Notify the user about this.
CAUTION
Location of J6 jumper is as shown below:
For Class 09 and Class 12
J6 Jumper
J6 Jumper
For Class 18 and Class 24 only
01_IM-BMS-FTX&FTK_EN.indb 17
01_IM-BMS-FTX&FTK_EN.indb 17
2/28/2020 6:27:18 PM
2/28/2020 6:27:18 PM
