![Daikin EUWA15HDW15 [8/18] Enter the readout menu using the a key](/img/pdf.png)
Daikin EUWA15HDW15 [8/18] Enter the readout menu using the a key
![Daikin EUWA15HDW15 [8/18] Enter the readout menu using the a key](/views2/1680861/page8/bg8.png)
7
The pressures measured will vary between a maximum
and minimum value, depending on the water and outdoor
temperatures (at the moment of measurement).
Minimum Nominal Maximum
(outdoor temp. -5°CDB) (outdoor temp. 35°CDB) (outdoor temp. 38°CDB)
(leaving water temp. 4°C) (leaving water temp. 7°C) (leaving water temp. 25°CDB)
Low pressure 4 bar 5 bar 8.5 bar
High pressure 7 bar 20 bar 22 bar
3 If the unit does not start after a few minutes, consult the readout
menu which gives the status of the different circuits (refer to
paragraph "Consulting actual operational information"). Also
refer to the chapter "Trouble shooting".
Switching the unit off
If the remote on/off control parameter is set to No:
1 Press the
f
key on the controller.
The LED inside the
f
key goes out.
If the remote on/off control parameter is set to Yes:
1 Press the
f
key on the controller or switch the unit off using
the remote on/off switch.
The LED inside the
f
key goes out in the first case and starts
blinking in the second case.
Consulting actual operational information
1 Enter the readout menu using the
a
key.
The controller automatically shows the first screen of the readout
menu which provides the following information:
–
MANUAL/COOLING or COOLSETP1/2
: automatic/manual control
mode and cooling operation. If the automatic control mode is
selected, the controller will indicate the active temperature
setpoint.
– INLET WATER: actual inlet water temperature.
– AMBIENT: actual ambient temperature.
– THERM. STEP: actual thermostat step.
2 Press the
x
key to enter the second screen of the readout
menu.
The OUTLET WATER TEMP screen of the readout menu provides
information concerning the outlet water temperature:
– OUTL. WATER 1: actual outlet water temperature of circuit 1.
– OUTL. WATER 2: actual outlet water temperature of circuit 2.
– OUTL. WATER 3: actual outlet water temperature of circuit 3 (if
applicable).
3 Press the
x
key to enter the third screen of the readout
menu.
The CIRCUITS STATUS screen of the readout menu provides
information concerning the status of the different circuits.
– C1: actual status of circuit 1.
– C2: actual status of circuit 2.
– C3: actual status of circuit 3 (if applicable).
When a circuit is ON, the following status information may appear:
– COOLING: the circuit is cooling.
When a circuit is OFF, the following status information may
appear:
– SAFETY ACTIVE: one of the circuit safety devices is activated
(Refer to the chapter "Trouble shooting"). The controller cannot
indicate which safety is activated since all safeties of a circuit
are connected in series.
– FREEZE UP DIS: the circuit was shut down because the water
heat exchanger ran the risk of freezing up. The unit will
continue or start its normal operation automatically when the
freeze-up risk has disappeared.
– TIMERS BUSY: the actual value of one of the software timers is
not zero (refer to the "timers" menu).
– CAN STARTUP: the circuit is ready to start up when extra cooling
load is needed.
4 Press the
w
key to return successively to the second and
the first screen of the readout menu.
Adjusting the temperature setpoint
The unit provides definition and selection of two independent
temperature setpoints for cooling operation:
■ SETP. COOL 1: inlet water temperature, cooling setpoint 1,
■ SETP. COOL 2: inlet water temperature, cooling setpoint 2.
The selection between setpoint 1 and 2 is done by a remote dual
setpoint switch (to be installed by the customer). The actual active
setpoint can be consulted in the readout menu.
If the manual control mode is selected (refer to the "user settings"
menu), none of the above-mentioned setpoints will be active.
To adjust a setpoint, proceed as follows:
1 Enter the setpoints menu using the
z
key.
If the user password is disabled for setpoint modifications (refer to
the "user settings" menu), the controller will immediately enter the
setpoints menu.
If the user password is enabled for setpoint modifications, enter
the correct code using the
h
key (refer to the "user password"
menu). Press
j
to confirm the password and to enter the
setpoints menu.
2 Select the setpoint to be adjusted using the
j
key.
A setpoint is selected when the cursor is blinking behind the
setpoint's name.
The ">" sign indicates the actual active temperature setpoint.
3 Press the
h
key to adjust the temperature setting.
The default, limit and step values for the cooling temperature
setpoints are:
– SETP. COOL : default value +12.0°C
limit values
(*)
+7.0 to +25.0°C
step value 0.1°C
(*) For glycol units, the lower limit of the cooling temperature setpoint can be adapted in
the factory to 5°C, 3°C, -2°C, -7°C.
4 Press
j
to save the adjusted temperature setpoint or press
the
z
key to cancel the modification.
When the setting has been confirmed, the cursor switches to the
next setpoint. When the setting has been cancelled, the cursor
returns to the upper left corner of the screen.
5 To adjust other setpoints, repeat from instruction 2 onwards.
Содержание
- Operation manual 1
- Packaged air cooled water chillers 1
- Electrical specifications 1 2
- Ntroduction 2
- Ontents 2
- Operation manual 2
- Technical specifications 1 2
- Escription 3
- Euwa20 3
- Euwa25 3
- Function of the main components 4
- Safety devices 4
- Internal wiring parts table 5
- Measuring devices 5
- Checks before initial start up 6
- Efore operation 6
- General recommendations 6
- Power supply connection and crankcase heating 6
- Water supply 6
- Digital controller 7
- Peration 7
- Working with the unit 7
- Adjusting the temperature setpoint 8
- Consulting actual operational information 8
- Enter the readout menu using the a key 8
- Enter the setpoints menu using the z key 8
- If the manual control mode is selected refer to the user settings menu none of the above mentioned setpoints will be active 8
- If the remote on off control parameter is set to no 8
- If the remote on off control parameter is set to yes 8
- If the unit does not start after a few minutes consult the readout menu which gives the status of the different circuits refer to paragraph consulting actual operational information also refer to the chapter trouble shooting 8
- Press j to save the adjusted temperature setpoint or press the z key to cancel the modification 8
- Press the f key on the controller 8
- Press the f key on the controller or switch the unit off using the remote on off switch 8
- Press the h key to adjust the temperature setting 8
- Press the w key to return successively to the second and the first screen of the readout menu 8
- Press the x key to enter the second screen of the readout menu 8
- Press the x key to enter the third screen of the readout menu 8
- Select the setpoint to be adjusted using the j key 8
- Setp cool 1 inlet water temperature cooling setpoint 1 8
- Setp cool 2 inlet water temperature cooling setpoint 2 8
- Switching the unit off 8
- The pressures measured will vary between a maximum and minimum value depending on the water and outdoor temperatures at the moment of measurement 8
- The selection between setpoint 1 and 2 is done by a remote dual setpoint switch to be installed by the customer the actual active setpoint can be consulted in the readout menu 8
- The unit provides definition and selection of two independent temperature setpoints for cooling operation 8
- To adjust a setpoint proceed as follows 8
- To adjust other setpoints repeat from instruction 2 onwards 8
- Advanced features of the digital controller 9
- History menu t t t t t 10
- Info menu y y y y y 10
- Input output menu u u u u u 10
- Safeties menu g g g g g 10
- The history menu contains all the information concerning the latest shutdowns 10
- The input output menu gives the status of all the digital inputs and the relay outputs of the unit 10
- The safeties menu provides useful information for trouble shooting purposes 10
- Timers menu r r r r r 10
- To calibrate the sensor for inlet water temperature measurement 10
- To change the user password 10
- To check the actual value of the compressor timers 10
- To check the actual value of the general software timers 10
- To check the status of circuit 1 at activation of one of the circuits safeties 10
- To check the status of circuit 2 at activation of one of the circuits safeties 10
- To check the status of circuit 3 at activation of one of the circuits safeties 10
- To check the status of the alarm the operation and the pump voltage free contacts 10
- To check the status of the circuit safeties 10
- To check the status of the evaporator heater however the evaporator heater option is not offered by daikin 10
- To check the status of the fanspeed relays 10
- To check the status of the flowswitch 10
- To check the status of the low pressure bypass switches 10
- To check the status of the remote setpoint selection switch the remote on off switch and the reverse phase protector 10
- To check whether or not the different compressors are activated 10
- To consult additional information about the unit such as the unit name the refrigerant used and the manufacturing number 10
- To consult information about the controller s software version 10
- To consult information about the number of circuit 1 shutdowns and the circuit status at the most recent shutdown 10
- To consult information about the number of circuit 2 shutdowns and the circuit status at the most recent shutdown 10
- To consult information about the number of circuit 3 shutdowns and the circuit status at the most recent shutdown 10
- To consult information about the number of shutdowns the unit safety which caused the most recent shutdown and the unit status at this shutdown 10
- To consult information about the unit safety which caused the shutdown and to check the unit status at shutdown 10
- To consult the outlet water inlet water and ambient temperature limits 10
- To define whether or not a password is needed to change the temperature setpoint 10
- User password menu q q q q q 10
- When automatic control mode is selected the unit uses default a 2 step thermostat to control the cooling load however the thermostat parameters are not fixed and can be modified via the thermostat settings screen of the user settings menu 11
- Rouble shooting 14
- Aintenance 17
- Disposal requirements 17
- Maintenance activities 17
- Thermostat parameters 17
- Pwen09719 1b 18
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