Specifications

8
Improvement of workability through
concentration of refrigerant pipes
Multi X2 is a system which achieves the large capacity multi-
application of plural units with the outdoor unit of 10 horsepowers as
basic. This makes it possible to concentrate the refrigerant pipes into
one pipe.
This contributes to reduce the work
expense of the refrigerant pipes and the
space of the pipe shaft.
Complete pursuit for the reliability of the air conditioner
To solve the maldistribution of the refrigerator oil and refrigerant
among the units, the oil return control, oil equalizing operation and
refrigerant accumulation/collection control are applied. In addition,
the oil level control of the compressor and the optimal control of the
refrigerant accumulation amount are also applied. Thus, the
reliability is completely improved.
Reliable system with back-up operation
The advantage of the system of plural outdoor units is the back-up
operation. The back-up operation is provided to operate another
outdoor unit in the emergency mode even if any outdoor unit should
be troubled. As the highly reliable safety function, the multi type
large capacity prevents the air conditioning system from a complete
stop as a fatal trouble.
Demonstration of high-efficiency
inverter
control
The inverter
compressor is equipped in the main unit, and the capacity control
type compressor is equipped in the sub unit. Together with the
minute capacity control, COP is improved during partial load
operation.
Applicable for renewal expansion.
Since the multi system has such a high degree of design freedom
as the outdoor unit can be installed and connected at the site, an
easy work to additionally connect the outdoor unit will solve the
problem even if the air conditioning load increases after
installation or the air conditioner is added in the future.
Heating operation up to an outdoor
temperature of -15ºC
Heating operation is also possible to an outdoor temperature of -
15C, so that unit can be used even in the cold climates. Cooling
operation is also possible up to an outdoor temperature of -5C, so
cooling/heating can be carried out year-around.
Indoor/outdoor connection unmatch
check function mounted.
An indoor/outdoor unmatch check function that automatically
checks each module whether the indoor/outdoor unit setting and
piping system are correct while the trial operation has been
mounted.
It has improved the reliability of the work.
Improvement of air-conditioning
control with CNT connector signal.
By inputting the CNT signal, the unit operability enable/prohibit is
controlled making control from a commercially available timer
easier. A cooling/heating forced operation mode has been added so
that forced control of only the operation mode is possible with no
pressed-fist priority.
Improved service function with
7-segment display on outdoor PCB.
Service information is digitally displayed on the outdoor unit with
three digits, allowing the serviceability to be improved and speed
up.
Details on 7-segment display ... Operation frequency, error display,
each temperature data, current temperature, etc.
Outdoor unit
Inverter unit
Indoor unit
(Liquid pipe/gas pipe) (Liquid pipe/gas pipe/equalizing pipe)
Constant-speed unit Constant-speed unit
Inverter unit
(main unit)
Constant-speed unit
(sub unit)
10HP
10HP
J280HKXE2-K
J280HKXE2-KT
Expansion of constant-speed units
Indoor unit
Display data
Inverter operation
frequency or error code
Heat exchanger temperature
Outdoor temperature
Dome lower (CM1)temperature
Discharge pipe (CM1) temperature
Discharge pipe (CM2 ) temperature
CT (CM1) current
CT (CM2) current
Number of connected indoor units
Compressor operation HZ
(Full load conversion value)
The above are sequentially displayed
SV1
SV2
63H1
63H2
63L
    : http://splitoff.ru/tehn-doc.html