Daikin EWTP400MBYN — управление вентилятором для автономного устройства: описание функций [226/452]

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Daikin EWLD240MBYNN [226/452] Heat pressure control
Functional Control for a Standalone Unit ESIE05-07
2–30 Part 2 – Functional Description
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2.7 Heat Pressure Control
2.7.1 Fan management
Purpose To regulate high pressure.
There are 3 possible settings depending on the unit:
1 No fan management. For water-cooled units.
2 3 Steps on/off fan management.
P 3 fan steps for single circuit.
P 2x3 fan steps for double circuit.
3 Inverter fan management.
P 1x on/off fans and 1x inverter fans for single circuit.
P 2x on/off fans and 2x inverter fans for double circuit.
Function
description:
3 Step on/off fan
management
The fan will work according to following regulation (for three fansteps):
P The high pressure boundaries (Fan Lower Lim and Fan Higher Lim) for the fan control can be set
in the service menu.
P The fan-step difference has a default value of 0.5 bar and can be changed. The fan-step length
is then calculated by using following formula:
Fan-step length = (Fan Higher Lim - Fan Lower Lim) - (n-1).fan-step difference
(With n = number of fan-steps, default = 3).
P By choosing the fan-step length big enough, hunting or unstable operation will be avoided.
P With the fan-timer (see service menu) it is possible to choose a minimum time between transitions
(load-up/load-down).The default value is 10 seconds for loadup and 180 seconds for loaddown.
This option is used to increase flexibility and to avoid unstable operation.
P If a changeable digital input is selected as Low Noise, following function will be active:
If digital input (Remote Low noise: Yes) is closed, then:
Minimum = Fan Lower Limit + Fan-Shift
And
Maximum = Fan higher Limit + Fan-Shift.
Fanstep
FanStepLength (ex 5 bar)
FanStepdiff
(ex 0.5 bar)
3
Function
description:
3 Step
on/off fan
management
2
1
0
FanLowerLim
(ex 10 bar)
FanLowerLim +
FanShift (ex 14 bar)
FanHigherLim
(ex 16 bar)
FanHigherLim +
FanShift (ex 20 bar)
High
Pressure
(bar)
FanShift (ex 4 bar)
ESIE05-07.book Page 30 Wednesday, October 11, 2006 10:42 AM

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Изучите управление вентилятором в автономных устройствах. Узнайте о настройках давления, управлении поэтапно и возможностях для повышения эффективности работы.