Aqua Tempo Super II
201709 23
6 Protection Control
6.1 High Pressure Protection Control
This control protects the refrigerant system from abnormally high pressure and protects the compressor from transient
spikes in pressure.
Figure 3-6.1: High pressure protection control
Notes:
1. P
c
: Discharge pressure
When the discharge pressure rises above 4.4MPa the system displays P0 protection and all units stop running. When the
discharge pressure drops below 3.2MPa, the compressor enters re-start control.
6.2 Low Pressure Protection Control
This control protects the refrigerant system from abnormally low pressure and protects the compressor from transient
drops in pressure.
Figure 3-6.2: Low pressure protection control
Notes:
1. P
e
: Suction pressure
When the suction pressure drops below 0.14MPa the system displays P0 protection and all the units stop running. When
the suction pressure rises above 0.3MPa, the compressor enters re-start control.
6.3 Discharge Temperature Protection Control
This control protects the compressor from abnormally high temperatures and transient spikes in temperature.
Figure 3-6.3: High discharge temperature protection control
When the discharge temperature rises above 110°C the system displays P0 protection and all the units stop running. When
the discharge temperature drops below 100°C , the compressor enters re-start control.
When P1 protection occurs 5 times
in 120 minutes, ta manual system
restart is required before the system
can resume operation.
Low pressure protection, error code P0 is displayed
When P0 protection occurs 5 times
in 120 minutes, a manual system
restart is required before the system
can resume operation.
Low pressure protection, error code P1 is displayed
Discharge temperature > 110°C
Discharge temperature < 100°C
High discharge temperature protection, error code P0 is
displayed
When P0 protection occurs 5 times
in 120 minutes, ta manual system
restart is required before the system
can resume operation.
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