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SiE12-411
Control Specification
Function and Control
105
3.16 Additional Function
3.16.1 Connection Pipe Condensation Preventing Function
This control is intended to adjust the electronic expansion valve opening so that the outdoor unit
gas pipe temperature (GDN) be kept below 8°C.
3.16.2 Priority Room Setting
Electronic expansion valves are controlled to provide the unit designated as the priority room
with the capacity of other room units.
(Distribution of capacity: Priority room unit ---
∆
D Max., other room units ---
∆
D -
α
)
"
Setting method
Turn off the circuit breaker before changing the setting.
Only one room can be set as the priority room.
"
Control start conditions
Priority room setting is made.
AND
“Powerful” signal from the priority room unit is received.
Note:
The operation mode of the priority room unit has precedence.
"
Cancellation of control
The control function is canceled when the “Powerful” operation mode is switched off or 20
minutes elapse after “Powerful Operation” started.
3.16.3 Powerful Operation Mode
Compressor operating frequency is increased to P1 Max. (Max. Hz of operating room unit
Σ
S)
and outdoor unit airflow rate is increased.
3.16.4 Voltage Detection Function
Power supply voltage is detected each time equipment operation starts.
(R1396)
Living
room
A
room
B
room
C
room
Normal
operation
Living
room
A
room
B
room
C
room
When Inverter
powerful-operation
is selected in the
priority room
The prioritised room will be heated/cooled much more quickly
Summary of Contents for Super Multi NX C-Series
Page 6: ...SiE12 411 Table of Contents v Index i Drawings Flow Charts v...
Page 7: ...SiE12 411 vi Table of Contents...
Page 67: ...Specifications SiE12 411 56 Specifications...
Page 171: ...Instruction SiE12 411 160 System Configuration...
Page 225: ...Check SiE12 411 214 Service Diagnosis...
Page 295: ...SiE12 411 iv Index...