Daikin EWYD360BZSL handleiding
Handleiding
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A stage up is executed (the next stage is activated) if the pressure difference exceeds the
target pressure difference by an amount equal to an adjustable stage up dead band by a time
depending by the difference between the reached values and the target value plus a stage up dead
band (high pressure difference error).
In particular the stage up is executed when the integral of the pressure difference error
reaches the value 50 °C x sec (90 Fxsec).
At the same manner a stage down is executed (the previous stage is activated) if the
pressure difference falls below the target setpoint by an amount equal to a stage down dead band
depending by the difference between the target setpoint minus the stage down dead band values and
the reached value (low pressure difference error).
In particular the stage down is executed when the integral of the low pressure ratio error
reaches the value 14 °C x sec (25.2 Fxsec)..
The pressure ratio error integral is reset to zero when condensing temperature is within the
deadband.
6.20.2.
Fan Modular
The Fan Modular method will work at the same way of Fantroll method (staging sequence),
but instead of using digital outputs, it will use and analog output.
In particular the analog output will assume a value, in volts, equal to the stage number (at
stage 2, 2V is output, at stage 3, 3V and so on).
6.20.3.
Variable Speed Driver
A continuous control is used; fans speed is modulated to keep saturated condensation
pressure at a setpoint; a PID control is used to allow a stable operation.
A Fan Silent Mode function (FSM) is implemented on unit with Variable Speed Driver
(VSD) to keep fan speed below a set value during some periods.
6.2.1.2.
VSD in cooling, cooling glycol or ice mode
When the system is operating in cooling mode, either if it is controlling the condensation
pressure, the pressure ratio or the pressure difference, the PID proportional gain is positive (the
higher the input the higher the output).
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Productinformatie
| Merk | Daikin |
| Model | EWYD360BZSL |
| Categorie | Niet gecategoriseerd |
| Taal | Nederlands |
| Grootte | 10110 MB |
