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2 vent door settings, Vent doors settings, Sidewall ventilation see vent doors or inlets – Acme PP-32 User Manual

Page 23: Adjusting vent door settings, Sidewall ventilation see inlets or vent doors, Pp-32, Vent doors operation, Koolmaster pp-32, Static pressure, Time

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23

PP-32

KOOLMASTER PP-32

REV.01

5.5.2 Vent Door Settings

If a static pressure sensor is used, the PP-32 can control the static

pressure in the room by opening and closing vent doors. When the

pressure drops below the low pressure set point, the vent doors close

according to a timer. Likewise, when the static pressure increases

above the high pressure set point, the vent doors open according to a

timer. It is also possible to define a stage level above which the vent

doors will always remain closed. Refer to sec. 5.15.3 to activate the

static pressure sensor.

In minimum ventilation, the vent doors open during the pre-opening delay

before fans start running. The same delay is used to close the vent doors

when the stage 1 fans return to a stop.

Static Pressure Alarm: alarms can be set off if the static pressure

remains below or exceeds a certain level for a too long period of time. In

this case, a delay is set in order to activate the alarm: the alarm condition

must maintained during this delay before the alarm is set off. Refer to

section 5.13.2 to set the static pressure alarm settings.

TIME

LOW SET POINT

(CLOSE AT)

STATIC

PRESSURE

HIGH SET POINT

(OPEN AT)

STATIC PRESSURE

DROPS BELOW

LO SET POINT:

VENT DOORS CLOSE IN

TIMER CYCLE

(CLOSE TIME/ OFF TIME)

VENT DOORS STOP

CLOSING

STATIC PRESSURE

EXCEEDS

HI SET POINT:

VENT DOORS OPEN IN

TIMER CYCLE

(OPEN TIME/ OFF TIME)

VENT DOORS STOP

OPENING

V

E

NT

DO

O

R

S

S

T

A

Y

S

T

IL

L

VEN

T

D

O

O

R

S

CL

O

S

E

VEN

T

D

O

O

R

S

OP

E

N

VENT DOORS OPERATION