APC INROOM ACPSC3000 Instruções de Operação descarregar pdf (Página 49)

49InRoom Controller - Operating Instructions

➊

➋

➌

➍

➎

➏

D6

t/sec

➌

%

100

90

nMax

80

70

65

55

t/sec

➋

➊

100%

nmax

Control

The corresponding commands:

Times are entered in seconds.

The numbered callouts refer to the corres-

ponding passages in the descriptive text.

Display Air

Fan (Part 2)

With the parameter "START 100%" ➊ you

adjust a time which must elapse before the

control begins. This way an airﬂow alarm is

avoided which could occur due to the fan

inertia. During this time the fan is operated

with 100% speed.

Using the "PRERUN" parameter ➋ you

adjust the delay for the inhibited start of

all components, except the glycol pump, in

relation to the control start with alarm moni

-

toring. This way the Pre-run parameter has

the effect of a cooling unit start delay. Using

different pre-runtimes for different units

saves power and ensures that the power

supply of the building will not overcharge.

The fan over-run time ("HUNTING TIME")

➌, which you can adjust, serves to reject

hot or cold air in the cooling unit and avoids

an accumulation of heat at the reheat or of

cold at the evaporator.

If during a time which you adjust with "RE-

DUCE TIME" ➍ no action (cooling, heating,

humidiﬁcation, dehumidiﬁcation) has been

taken, the fan speed is reduced by the per

-

centage which you adjust with "REDUCE

SPEED" ➎.

The "FILTER OFFSET" ➏ is entered as a

positive difference to the maximum speed.

If a ﬁlter alarm is released, the maximum

speed will be increased by the ﬁlter offset

in order to overcome the higher resistance

of a clogged ﬁlter.

(except the reducing time which is entered

in minutes)

control

start

Fan start phase

compon.

start*

fan

start

*start of all other control-relevant components

except the glycol pump, which can be started

earlier.

unit stop

Fan stop phase

fan stop

over-run due

to fan inertia

ﬁlter offset ➏

offset ➎a*

reduced speed ➎

dehumidif. speed **

UPS speed **

*this item refers to the previous page.

** these parameters are explained on

the overnext page.

Speed levels

fan 1 100 5

fan 1 pre 15

fan 1 after 20

fan 1 redtime 30

fan 1 redspeed 20

fan 1 filteroffset 15

1 2 ... 44 45 46 47 48 49 50 51 52 53 54 ... 105 106

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