[ IX Troubleshooting ]
Time of data storage before error
MAIN circuit
Inlet water temp (Twi )
Outlet water temperature (Two)
Discharge refrigerant temperature 1 TH1 Discharge refrigerant temperature 2 TH5
Suction refrigerant temperature 1 TH2 Suction refrigerant temperature 2 TH6
Shell temperature 1 TH3
Air-side heat exchanger inlet
refrigerant temperature 1 TH4
Outside temperature TH9
Inlet water temperature 1 TH16
Outlet water temperature 1 TH11
Representative water temperature 1 TH14
Representative water temperature 2 TH15
High pressure 1 HP1
Low pressure 1 LP1
Heatsink temperature(THHS)
Water temperature setting using an external analog input (4-20 mA Current input)
I u(U-phase current)(Compressor)
I w(W-phase current)(Compressor)
I dc(Bus current)(Compressor)
V dc(Bus voltage)(Compressor)
I u(U-phase current)(Fan)
I w(W-phase current)(Fan)
I dc(Bus current)(Fan)
V dc(Bus voltage)(Fan)
Suction SH (target)
Compressor frequency (actual frequency)
Suction SH
Shell bottom SH
Operating frequency of the fan (actual frequency)
Opening of the LEV on the main circuit
Injection LEV opening
Discharge SH (target)
Discharge SH
Target water temperature
Water temperature setting using an external analog input (0-10 V or 2-10 V Voltage input)
Water temperature setting using an external analog input (1-5 V Voltage input)
(Note1) Each circuit board displays error data of its own unit and not other units.
(Note2) "Before error" is defined as the period between 19 minutes before the occurrence of an error up to immediately before the occurrence of the error.
(Note3) When the input type is selected. When the input type is not selected = 0
HWE15070
Item
SUB circuit
Inlet water temp 2 TH12
Shell temperature 2 TH7
Air-side heat exchanger inlet
refrigerant temperature 2 TH8
Outside temperature TH9
Inlet water temperature 2 TH12
Outlet water temperature 2 TH13
High pressure 2 HP2
Low pressure 2 LP2
Item
LED display
code
MAIN circuit SUB circuit MAIN circuit SUB circuit
c01
First decimal place
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c02
First decimal place
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c03
First decimal place
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c04
First decimal place
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c05
First decimal place
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c06
First decimal place
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c07
First decimal place
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c08
First decimal place
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c09
First decimal place
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c10
First decimal place
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c11
First decimal place
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c12
Second decimal place
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c13
Second decimal place
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c14
First decimal place
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c15
First decimal place
(Note3)
c16
First decimal place
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c17
First decimal place
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c18
First decimal place
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c19
Integer
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c20
First decimal place
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c21
First decimal place
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c22
First decimal place
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c23
Integer
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c24
First decimal place
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c25
Integer
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c26
First decimal place
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c27
First decimal place
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c28
Integer
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c29
Integer
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c30
Integer
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c31
First decimal place
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c32
First decimal place
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c33
First decimal place
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c35
First decimal place
(Note3)
c36
First decimal place
(Note3)
- 118 -
Unit and circuit type
Main unit
Sub unit
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Fixed to 0 Fixed to 0 Fixed to 0
Fixed to 0 Fixed to 0 Fixed to 0
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Fixed to 0 Fixed to 0 Fixed to 0
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Fixed to 0 Fixed to 0 Fixed to 0
Fixed to 0 Fixed to 0 Fixed to 0
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