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Si12-411A
Control Specification
Function and Control
95
3.6
Freeze-up Protection Control
Outline
During cooling operation, the signals being sent from the indoor unit allow the operating
frequency limitation and then prevent freezing of the indoor heat exchanger. (The signal from
the indoor unit must be divided into the zones as the followings.
Detail
Conditions for Start Controlling
Judge the controlling start with the indoor heat exchanger temperature after 2 sec from
operation start and after 30 sec from changing number of operation room.
Control in Each Zone
3.7
Heating Peak-cut Control
Outline
Heat Pump Only
During heating operation, the signals being sent form the indoor unit allow the operating
frequency limitation and prevent abnormal high pressure. (The signal from the indoor unit must
be divided as follows.)
Detail
Conditions for Start Controlling
Judge the controlling start with the indoor heat exchanger temperature after 2 min from
operation start and after A sec from changing number of operation room.
Control in Each Zone
The maximum value of heat exchange intermediate temperature of each indoor unit controls the
following (excluding stopped rooms).
A
30
2
When increase
When decrease
Summary of Contents for 2MKD58BVM
Page 1: ...C Series Applied Models zInverter Multi Cooling Only zInverter Multi Heat Pump Si12 411A ...
Page 6: ...Si12 411A Table of Contents v Index i Drawings Flow Charts v ...
Page 7: ...Si12 411A vi Table of Contents ...
Page 67: ...Specifications Si12 411A 56 Specifications ...
Page 173: ...Instruction Si12 411A 162 System Configuration ...
Page 227: ...Check Si12 411A 216 Service Diagnosis ...
Page 295: ...Si12 411A iv Index ...
Page 298: ...Si12 411A Printed in Singapore 03 2005 AK COS ...