HIGH PRESSURE PROTECTION 1
During the compressor in operation,
When the discharge high pressure sensor will detect the high pressure sensor.
The high pressure is controlled in the following protections.
<Start and Release condition>
When the compressor speed meets following conditions.
01-44
5 . HIGH PRESSURE PROTECTION CONTROL
Cooling
Dry
HP > 3.30MPa
HP > 4.00MPa
rps < 20
20 < rps < 30
30 < rps
Compressor speed [rps]
Control
Release
HP < 3.10MPa
HP > 3.75MPa HP < 3.55MPa
HP < 3.80MPa
High pressure
=
=
=
=
=
=
=
=
Heating
HP > 3.30MPa
HP > 3.30MPa
rps < 20
20 < rps < 90
90 < rps
Compressor speed [rps]
Control
Release
HP < 3.10MPa
HP > 3.50MPa HP < 3.30MPa
HP < 3.10MPa
High pressure
=
=
=
=
=
=
=
=
<Start and Release condition 1>
When the compressor speed meets following conditions.
<Operation>
The compressor speed -5rps every 60 seconds.
If the compressor operates at minimum speed for 60 seconds and the release condition isn't met,
it will be stopped.
<Operation>
The compressor speed -5rps every 60 seconds.
If the compressor operates at minimum speed for 60 seconds.
<Release condition 2>
If the compressor was stopped by protection, it will restart after 3 minutes ST
and high pressure is lower than 3.00MPa.
( Table 25 : Heating high pressure protection control)
( Table 24 : Cooling / Dry high pressure protection control)
During Cooling / Dry mode
.
During Heating mode
.
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