Daikin EWAD120MBYNN1, Operation Manual

Page 1: ...OPERATION MANUAL EWAD120MBYNN1 EWAD150MBYNN1 EWAD170MBYNN1 EWAD240MBYNN1 EWAD300MBYNN1 EWAD340MBYNN1 Packaged air cooled water chillers...

Page 2: ...e that it has been properly installed It is therefore necessary to carefully read the installation manual supplied with the unit and the recommendations listed in Checks before initial start up on pag...

Page 3: ...rge evaporator 19 Field wiring intake 2 Condenser 11 Leaving water temperature sensor R4T 20 Main isolator switch optional S13S 3 Compressor 1 M1C 12 Entering water temperature sensor R3T 21 Compresso...

Page 4: ...the evaporator of the unit against freezing when there is no waterflow or when the waterflow is too low Safety devices The unit is equipped with three kinds of safety device 1 General safety devices...

Page 5: ...ntroller A11P Expansion board controller only for EWAD240 340 B1P B4P Low pressure transmitter for circuit 1 circuit 2 B2P B5P High pressure transmitter for circuit 1 circuit 2 C1 C3 Capacitor E1HC E2...

Page 6: ...ted by paper sheets cardboard or any other material 12 Power supply voltage Check the power supply voltage on the local supply panel The voltage should correspond to the voltage on the identification...

Page 7: ...with the everyday usage of the unit Here you will find how to perform routine tasks such as Setting the language on page 6 Switching the unit on on page 7 Consulting actual operational information on...

Page 8: ...rs menu on page 9 the circuit is ready to start up when extra cooling load is needed The preceding OFF messages are written down in order of priority If one of the timers is busy and one of the safeti...

Page 9: ...ll function as stand alone units If a slave unit can not be found by the network the red light inside the p key of the master lights up and the buzzer inside the control is activated If the master can...

Page 10: ...atus To consult information about the pressures of circuit 1 To consult information about the pressures of circuit 2 only for EWAD240 340 To consult actual operational informa tion about the ambient t...

Page 11: ...f the compressors at the moment of shutdown To check which were the pressures of the circuit 1 at the moment of shutdown To check which were the pressures of the circuit 2 at the moment of shutdown on...

Page 12: ...e cooling capacity However the thermostat parameters are not fixed and can be modified via the screen of the user settings menu The default limit and step values for the thermostat parameters are show...

Page 13: ...ating setpoint is altered based on the ambient temperature 4 used to define maximum value that can be added to the active setpoint used to define the ambient source at which the floating setpoint valu...

Page 14: ...tep change has occurred During the countdown the unit will not be able to go to a lower thermo stat step FLOWSTART 15 sec counts down when the waterflow through the evaporator is continuous and the un...

Page 15: ...to consult the first screen This screen contains information about the unit name and the refrigerant used 3 Press h to consult the next screen This screen contains information about the controller s...

Page 16: ...devices may be bridged or changed to a value other than the factory setting If the cause of the problem cannot be found call your local dealer Symptom 1 The unit does not start but the ON LED lights...

Page 17: ...sed electrician RESET After pressure decrease push the button on the high pressure switch and reset the controller Symptom 5 4 Fan thermal protector is activated POSSIBLE CAUSES CORRECTIVE ACTION Mech...

Page 18: ...ck the water quality refer to the installation manual of the unit for specifications of the water quality Waterfilters Make sure to clean the waterfilter in front of the evaporator water inlet once ev...

Page 19: ...ngs in group 1 all Wednesdays will work according to the settings in group 2 all Saturdays and Sundays will work according to the settings in group 3 all holiday days will work according to the settin...

Page 20: ...tween inlet water evaporator temperature and ambient temperature Floating setpoint Default value Lower limit Upper limit Maximum value C 3 0 0 0 5 0 D1 C 20 0 20 0 43 0 D2 a a rise in floating setpoin...

Page 21: ...h h g h g h 0 1 2 0 1 g h g h g h g h g h g h g h g h g h g g h g h g h g h g h h g g 5 f 2 7 7 g h 7 7 5 7 7 7 7 7 7 7 7 7 7 3 7 7 7 7 g h g h g h 5 0 1 2 0 1 5 5 5 0 1 2 0 1 5 5 q h h g q h g h g h...

Page 22: ...Zandvoordestraat 300 B 8400 Oostende Belgium 4PW22683 1...