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4.1.3 Temperature Settings
Setpoint range is limited according to the selected operating mode. The controller includes:
• two set points in cooling mode (either standard cool or cool w/glycol)
• two set points in heating mode
• one set point in ice mode
The above setpoints are activated according to Operating mode, Double Setpoint or Scheduler selection. If the Time
Scheduler is enabled the Double Setpoint input state will be ignored by the controller.
The table below lists the LWT Setpoint being activated according to the operation mode, the double setpoint switch status
and the scheduler state. The table also reports the defaults and the range allowed for each setpoint.
Operating
Mode
Double Setpoint
Input
Scheduler
LWT
Setpoint
Default
Range
Cool
OFF
Off, On Setpoint
1
Cool LWT 1
7.0°C
4.0°C 15.0°C
ON
On Setpoint 2
Cool LWT 2
7.0°C
4.0°C 15.0°C
Ice
N/A
N/A
Ice LWT
-4.0°C
-8.0°C 4.0°C
Heat
OFF
Off, On Setpoint
1
Heat LWT 1
45.0°C
30.0°C
60.0°C(*)
ON
On Setpoint 2
Heat LWT 2
45.0°C
30.0°C
60.0°C(*)
(*) 30.0 °C 65.0 for HT unit type
The LWT setpoint can be overridden in case the setpoint reset or the quiet mode are activated.
4.1.4 Thermostatic control
Thermostatic control settings, allows to set up the response to temperature variations. Default settings are valid for most
application, however plant specific conditions may require adjustments in order to have a smooth control or a quicker
response of the unit.
The control will start the first compressor if the controlled temperature is higher (Cool Mode) or lower (Heat Mode) than
the active setpoint of at least a Start Up DT value, whereas other compressors are started, step by step, if the controlled
temperature is higher (Cool Mode) or lower (Heat Mode) than the active setpoint (AS) of at least a Stage Up DT (SU)
value. Compressors stop if performed following same procedure looking to the parameters Stage Down DT and Shut
Down DT.
Cool Mode
Heat Mode
First compressor
starts
Controlled Temperature > Setpoint + Start Up
DT
Controlled Temperature < Setpoint - Start Up
DT
Other compressors
start
Controlled Temperature > Setpoint + Stage
Up DT
Controlled Temperature < Setpoint - Stage Up
DT
Last compressor stop
Controlled Temperature < Setpoint - Shut Dn
DT
Controlled Temperature > Setpoint - Shut Dn
DT
Other compressors
stop
Controlled Temperature < Setpoint - Stage Dn
DT
Controlled Temperature > Setpoint - Stage Dn
DT
A qualitative example of compressors start-up sequence in cool mode operation is shown in the graph below.
Bekijk gratis de handleiding van Daikin EWYS6504Z, 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 | EWYS6504Z |
| Categorie | Airco |
| Taal | Nederlands |
| Grootte | 7564 MB |
