Why won't the compressor start on my Daikin EUWAN20KBZW1?
The compressor of your Daikin Chiller might not start due to high ambient conditions, a large switching rate (more than six hours at an ambient temperature of 55°C inside the switchbox), or other actions causing the heater sink temperature to increase.
What to do if my Daikin EUWAN20KBZW1 stops without an alarm?
If your Daikin Chiller stops operating without any alarm on the central controller, the thermal protection might be active. You can reset it by switching the power off and then on again after waiting for 10 minutes.
Covers technical and electrical specifications, installation outlines, and outlook drawings for various models.
Technical specs for EUWA*5-8KBZW1 models: compressor, evaporator, condenser, refrigerant circuit.
Technical specs for EUWA*10-12KBZW1 models: compressor, evaporator, condenser, refrigerant circuit.
Technical specs for EUWA*16-20KBZW1 models: compressor, evaporator, condenser, refrigerant circuit.
Technical specs for EUWA*24KBZW1 models: compressor, evaporator, condenser, refrigerant circuit.
Technical specs for EUWY*5-8KBZW1 models: compressor, evaporator, condenser, refrigerant circuit.
Technical specs for EUWY*10-12KBZW1 models: compressor, evaporator, condenser, refrigerant circuit.
Technical specs for EUWY*16-20KBZW1 models: compressor, evaporator, condenser, refrigerant circuit.
Technical specs for EUWY*24KBZW1 models: compressor, evaporator, condenser, refrigerant circuit.
Illustration and legend for correction factors for glycol in EUWA*5-24KBZW1 and EUWY*5-24KBZW1.
Electrical specs for EUWA*5-8KBZW1: power supply, fans, compressor, control circuit, pump.
Electrical specs for EUWA*10-12KBZW1: power supply, fans, compressor, control circuit, pump.
Electrical specs for EUWA*16-20KBZW1: power supply, fans, compressor, control circuit, pump.
Electrical specs for EUWA*24KBZW1: power supply, fans, compressor, control circuit, pump.
Electrical specs for EUWY*5-8KBZW1: power supply, fans, compressor, control circuit, pump.
Electrical specs for EUWY*10-12KBZW1: power supply, fans, compressor, control circuit, pump.
Diagram illustrating the wiring for EUWA*5-24KBZW1 and EUWY*5-24KBZW1 units.
Functional diagrams and controller settings for thermostat control in EUWA/EUWY units.
Fan management in cooling and heating modes based on ambient temperature.
Explains freeze-up control as protection against ice formation at the evaporator outlet.
Details defrost management for EUWY*5-24KBZW1, including function, dipswitch settings, and start/stop conditions.
Procedure for switching the unit ON/OFF and selecting cooling/heating modes.
Describes types of safety devices, alarm indications, and actions to take in case of alarms or warnings.
Describes direct and user parameters, how to access them, and provides an overview table of parameters.
Provides the programming procedure for reading or adjusting parameter settings on the controller.
Lists alarm and warning codes, their descriptions, reset methods, and associated pages.
Overview of safety devices, their alarm indications, activation conditions, reset methods, wiring codes, and devices.
Procedure for checking temperature sensors (R3T, R4T, R6T, R7T, R8T) before PCB replacement.
Map of common electrical errors, their causes, parts, connectors, and actions.
Lists frequent failures, possible causes, and items to check when the unit doesn't start or has a malfunction.
Describes general procedures for refrigeration circuit and electrical circuit repairs.
Procedure for replacing the controller, including entering the factory menu and reprogramming.
Procedure for replacing the controller, including entering the factory menu and reprogramming.
Step-by-step procedure for replacing the PCB, including setting dipswitches correctly.
Explains thermal protection operation in the soft starter to prevent overheating during compressor startup.
Checklist for electrical installations, including fuses, earth leak detector, supply voltage, wiring, and controller programming.
Checks and procedures to diagnose and solve issues with the 4-way valve not shifting from cooling to heating.
Checks and procedures for issues where the valve shifts but does not complete reversal.
Checks and procedures for issues where the valve does not shift from heating to cooling.
Checks and procedures for diagnosing and resolving leaks in the 4-way valve during heating mode.
Covers preventive maintenance for unit casing, compressor, evaporator/condenser, and switchbox.
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General