Specifications
Option
Preparation of built-in type high
frequency harmonics measure parts
Please contact the MHI Sales Office for details.
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-first 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
speeded up.
*Details on 7-segment display ... Operation frequency, error
display, each temperature data, current temperature, etc.
8
9
10
11
12
13
14
0
1
2
3
4
5
6
7
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
NO. of connected
indoor units
Compressor operation Hz
(full load conversion value) FK
CM (CM1) current
SV1
SV2
63H1
63H2
CT (CM2) current
Improved indoor unit control
This control stops the fan when the heating thermostat turns
OFF. Besides reducing the sound of refrigerant flowing in the
indoor unit, and taking measures to prevent overheating, the
indoor unit control has also been improved such as the addition
of a function to stop only the relevant indoor unit when a drain
error occurs.
130m piping for large scale buildings
The level difference of the outdoor unit and indoor unit is 50m
(*), and the one way length is 100. With custom orders, a long
piping design of up to 130m, the longest in the industry, is
possible. The level difference between indoor units can also
be set to 15m. (The piping length after the first branch has
been changed from the conventional 30m to 40m. Contact the
MHI Sales Office for details.)
By the use of the 4-way piping exit option for
the outdoor unit, a flexible layout can be set
A 4-way piping exit ports from the outdoor unit has been
prepared allowing the outdoor unit installation position to be
decided according to the installation conditions. The piping
exit position can be selected from front, back, right, or bottom.
Workability
Outdoor unit
Indoor unit
Level difference
between
indoor units 15m
Level difference
50m, one way
length 100m.
*This is 40m when the outdoor unit is lower.
3
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