Danfoss Optyma iCO2, Инструкция по эксплуатации, Страница: 42 / 68

Instructions
42 | AN405821998738en-000102 - 118A5495A © Danfoss | Climate Solutions | 2023.02 | LCA012A024
14.3. When error stop occurred
1. Maintenance code (oPE code)
If conditions corresponding to each item are met, the maintenance code (oPE code) is displayed on the 7-segment display. For details of display, refer to
the following table.
7-segment display Item Remark
oPE-3 Total compressor operation time since last maintenance > 30,000 h
Synchronized with simplified remote monitor trigger
timing
oPE-11
Number of the error detection stops within 60 min. after first stop
[Low pressure error count (load side stop)] = 120 times Synchronized with simplified remote monitor trigger
timing
oPE-30 Active filter error detection When it is not set at E63 display
oPE-88 Compressor oil shortage detection Oil level error is valid when SW6-5 and SW6-7 are OFF
2. Error code
If the unit is stopped fully by error, the code corresponding to error content is displayed on the 7-segment display. For details of display, refer to the
following table.
7-segment
Display
Protective device
symbol
Cause Inspection Measures / countermeasures
E32
Power supply
phase loss
Power supply
reverse phase
Phase loss (incl. under-voltage) Volt check at 3-phase
Security of correct connection,
power supply voltage
Power supply reverse phase See “2. Prevention of reverse phase operation" and change connection
E36-1
Discharge pipe
temp. error
Refrigerant gas shortage Flash gas generation or no in sight glass Additional refrigerant charge
Liquid bypass circuit failure Defective electronic expansion valve Replace
E37-1
Gas cooler temp.
sensor No.1 error
Gas cooler temp. sensor blown wire,
short-circuit are detected Defective gas cooler temp. sensor,
connector disconnection or short-circuit
Replace
E37-2
Gas cooler temp.
sensor No.2 error
E37-3
Middle pressure
receiver inlet
temp. sensor error Middle pressure receiver inlet temp.
sensor blown wire, short-circuit are
detected Defective middle pressure receiver inlet
temp. sensor, connector disconnection or
short-circuit
Replace
E37-4
Injection inlet
temp. sensor error Injection inlet temp. sensor blown wire,
short-circuit are detected Defective injection inlet temp. sensor,
connector disconnection or short-circuit
Replace
E37-6
Subcooling coil
temp. sensor error Subcooling coil temp. sensor blown wire,
short-circuit are detected Defective subcooling coil temp. sensor,
connector disconnection or short-circuit
Replace
E37-7
Liquid feed pipe
temp. sensor error Liquid feed pipe temp. sensor blown
wire, short-circuit are detected Defective liquid feed pipe temp. sensor,
connector disconnection or short-circuit
Replace
E38
Outdoor air temp.
sensor error Out door air temp. sensor blown wire,
short-circuit are detected Defective outdoor air temp. sensor,
connector disconnection or short-circuit
Replace
E39-1
Discharge pipe
temp. error Discharge pipe temp. sensor blown wire,
short-circuit are detected Defective discharge pipe sensor,
connector disconnection or short-circuit
Replace
E40
63H
High pressure
switch
Less air passing through gas cooler
Much dust on gas cooler Wash, remove
Clogged gas cooler suction inlet, blow
outlet
Remove
Low compressor speed Fan speed controller failure Replace parts
Under overload state
High gas cooler suction air temp. Repair short-circuit
High suction gas pressure (low pressure) Adjust as specified
Clogged high pressure side refrigerant
pipe
Defective oil separator outlet check valve Replace
E41-1
Power transistor
overheat
(5 times in 1 hour)
Overheat of power transistor
Check the operation of the transistor
cooring fan Replace power transistor
cooling fan or power transistor
Stops with power transistor sensor
blown wire, output error detection Defective power transistor sensor,
connector disconnection or short-circuit
Replace power transistor sensor
E42-1 Current cut
Detect the anomalous output current of
inverter
Check the inverter output Replace inverter or compressor
Compressor wiring, connector
disconnection or short-circuit Replace wiring or power
transistor
E43-1 Liquid return error
Defect the anomalous under dome
temp.
Check the specification of connected low
pressure devices Connect the adequate low
pressure devices
Under dome temp. sensor, connector
disconnection or short-circuit
Replace