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Installation and operation manual
23
EWAQ016~064BAW + EWYQ016~064BAW
Packaged air-cooled water chiller
4PW70082-1E – 2016.12
[6] Option setup
[6-01] External room thermostat option
If the optional external room thermostat is installed, its operation
must be enabled by field setting. Default [6-01]=0, which means
no external room thermostat is installed. Set [6-01] to 1 or 2 if
the optional external room thermostat is installed.
The external room thermostat only gives an ON/OFF signal to
the heat pump based on the room temperature. Because it does
not give continuous feedback information to the heat pump, it is
supplementary to the remote controller room thermostat
function. To have a good control of the system and avoiding
frequent ON/OFF it is advised to use the automatic weather
dependent set point operation.
[6-01]=1
Room thermostat input 1 = heating operation ON (1)/OFF (0)
Room thermostat input 2 = cooling operation ON (1)/OFF (0)
[6-01]=2
Room thermostat input 1 = operation ON (1)/OFF (0)
Room thermostat input 2 = cooling (1)/heating (0) selection
[7] Option setup
[7-00] Forced pump operation
[7-00]=0 the pump performs intermittent sampling during
thermo off conditions. This setting is often used when the unit
is controlled by a room thermostat.
[7-00]=1 the pump continues operation during thermo off
conditions (default)
[8] Option setup
[8-00] Remote controller temperature control
[8-00]=0 the unit operates in leaving water temperature
control. This is the default setting.
[8-00]=1 the unit operates in room temperature control. This
means that the remote controller is used as room thermostat,
so the remote controller can be placed in the living room to
control the room temperature.
[8-01] Setting is not applicable
[8-03] Setting is not applicable.
[8-04] Freeze-up prevention
The unit has a freeze-up prevention functionality for which
3 levels can be selected:
[8-04]=0 prevention level 0 (default: no prevention)
[8-04]=1 prevention level 1
[8-04]=2 prevention level 2
The freeze-up prevention is only active when the unit is in
thermo OFF condition. If prevention level 1 is enabled, the
freeze-up prevention will start if the outdoor ambient
temperature is <4°C and if the leaving or return water
temperature is <7°C. For prevention level 2, the freeze-up
prevention will start as soon as the ambient temperature is
<4°C.
In both cases, the freeze-up prevention will be activated by
starting up the pump to circulate the water, and if the leaving or
return water temperature is <5°C for 5 minutes, the unit will start
up in heating mode to prevent too low temperatures.
The option can be enabled when there is no optional heater tape
or glycol in the system and when heat can be used from an
application.
[9] Automatic temperature compensation
If needed, it is possible to adjust some thermistor value of the unit by
a correction value. This can be used as countermeasure for
thermistor tolerances or capacity shortage.
The compensated temperature (= measured temperature plus
compensation value) is then used for controlling the system and will
be displayed in the temperature read-out mode.
[9-00] Leaving water temperature compensation value for
heating operation.
[9-01] Leaving water thermistor auto corrective function.
When enabled, this function will take into account the outdoor
ambient conditions and correct the measured value which will be
used for the logic.
E.g. when the ambient temperature is high during cooling mode,
the logic will correct the measured value of the leaving water
thermistor to a lower value to take into account influence of high
ambient temperatures in the measurement.
[9-02] Setting is not applicable
[9-03] Leaving water temperature compensation value for
cooling operation.
[9-04] Setting not applicable
[A] Option setup
[A-00] Setting is not applicable.
[A-01] Setting is not applicable.
[A-02] Return water temperature undershoot value
This setting makes it possible to set the allowable undershoot
when operating the unit during heating THERMO ON/OFF
condition.
The unit will go in THERMO ON only if the return water
temperature (RWT) goes below the set point minus the
differential temperature:
Thermo ON: RWT < Set point –
The setting [A-02] has a variability range from 0 to 15 and the
step is 1 degree. The default value is 5, meaning that the
differential temperature default value is 3.5.
[A-03] Leaving water temperature overshoot/undershoot value
This setting makes it possible to set the allowable overshoot
(heating)/undershoot (cooling) when operating the unit during
leaving water control.
[A-04] Glycol concentration setting
This setting is only applicable for units with a low temperature
cooling option.
When changing this setting, the freeze prevention parameters
will be changed in relation with the glycol concentration.
[A-04]=0= 30% glycol, minimum leaving water=0°C
[A-04]=1= 40% glycol, minimum leaving water=–10°C
[b] Settings are not applicable
CAUTION
Glycol concentrations lower than the set parameter
will cause freezing of the liquid.
A-02[]
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4PWEN70082-1E_2016_12.book Page 23 Wednesday, December 7, 2016 2:18 PM
Bekijk gratis de handleiding van Daikin EWAQ-BAWP, stel vragen en lees de antwoorden op veelvoorkomende problemen, of gebruik onze assistent om sneller informatie in de handleiding te vinden of uitleg te krijgen over specifieke functies.
Productinformatie
| Merk | Daikin |
| Model | EWAQ-BAWP |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 9272 MB |
