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Air cooled inverter water chiller
OPERATION
MANUAL
Operation Manual
50
EWAD TZ B 160-700
Air cooled inverter water chiller
D-EOMAC00909-16EN
start up procedure to start
Oil Heating
Circuit is off because the oil temperature is too low to guarantee a proper
lubrication of compressor. Heating resistor is activated to eliminate this
temporary condition. It’s suggested to power up the unit in advance to avoid this
limiting condition.
Alarm
A circuit alarm is active. Check the alarm list to see what is the active alarm
inhibiting the circuit to start and check if the alarm can be cleared. Refer to the
Troubleshooting section before proceeding.
Test Mode
Circuit mode set to Test. This mode is activated to check operability of onboard
circuit actuators and sensors. Check with the local maintenance if the Mode can
be reverted to Enable.
Max Comp Starts
Compressor starts exceed the maximum number of starts per hour.
VFD Heating
Inverter on compressor cannot start because of low internal temperature.
Heating resistor is activated to eliminate this temporary condition. It’s suggested
to power up the unit in advance to avoid this limiting condition.
Maintenance
A component needs to be replaced or maintained. Refer to the Troubleshooting
section before proceeding.
EXV
Preopen
EXV prepositioning before compressor starts.
Run:
Pumpdown
Circuit is shutting down because of thermostat control or pumpdown alarm or
because the enable switch has been turned to off.
Normal
Circuit is running within the expected operational conditions.
Disch SH Low
Discharge superheat is below the acceptable value. This is a temporary
condition that should disappear after few minutes of operation.
Evap Press Low
Circuit is running with low evaporator pressure. This could be due to a transitory
condition or a lack of refrigerant. Check with the local maintenance if corrective
actions are required. Circuit is protected by preventive logic.
Cond Press High
Circuit is running with high condenser pressure. This could be due to a transitory
condition or high ambient temperature or problems with the condenser fans.
Check with the local maintenance if corrective actions are required. Circuit will be
protected by preventive logic.
High LWT Limit
Circuit is running with a high water temperature. This is a temporary condition
that will limit the maximum compressor capacity. Reduction of the water
temperature will allow the compressor to reach the full capacity.
High VFD Amps
Inverter current is higher than the maximum allowed current. Preventive logic will
protect the inverter.
If the circuit is allowed to start, the starting sequence is initiated. Starting sequence is described in
a simplified version with the following flowchart.
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Productinformatie
| Merk | Daikin |
| Model | EWAD620TZPLB |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 11976 MB |
