Cumberland Integra EXPERT 64EU, User Manual

Page: 52 / 102

52
EXPERT 64EU rev.03
EXPERT 64EU
6.3 Tunnel Curtain
6.3.1 Principle of Operation
One curtain output can be used for tunnel ventilation. This curtain’s opening can
either be base on the average room temperature or on the static pressure level in the
building. Refer to section 4.5 to select the proper operation mode (Temp/SP).
TUNNEL CURTAIN: BASED ON THE STATIC PRESSURE LEVEL
Beginning of the Tunnel Ventilation:
The tunnel ventilation start-up is linked with the activation of a user-defined fan
stage: when the start temperature of this stage is reached, the tunnel curtain starts
being adjusted according to the static pressure level.
Timer:
When the static pressure level exceeds the high pressure limit, the curtain opens
during the Open Time then stays still during the Off Time. This process is repeated up
until the static pressure level goes back to the desired range. The reversed process is
executed when the static pressure decreases below the low pressure limit. The Off
Time is common for both the closing and opening cycles.
Minimum Age:
The minimum age is used to prevent tunnel ventilation from being used when the
animals are too young. The user defines the age above which the tunnel ventilation
mode can start. The curtain does not open while animals are beneath this age.
GRAPHIC : Curtain’s Operation - based on the static pressure level
TIME
LOW LIMIT *
STATIC
PRESSURE
HIGH LIMIT *
THE STATIC PRESSURE
LEVEL DECREASES
UNDER THE LOW LEVEL:
THE CURTAIN CLOSES
ACCORDING TO A TIMER
(CLOSE TIME/ OFF TIME)
THE CURTAIN
STOPS CLOSING
THE STATIC PRESSURE
LEVEL EXCEEDS
THE HIGH LEVEL:
THE CURTAIN OPENS
ACCORDING TO A TIMER
(OPEN TIME/ OFF TIME)
THE CURTAIN
STOPS OPENING
CU
RT
A
IN
OPE
N
S
CUR
T
A
IN
ST
A
Y
S
ST
IL
L
CU
R
T
AI
N
CL
O
S
E
S
* THE HIGH AND LOW PRESSURE
LIMITS CAN AUTOMATICALLY
BE ADJUSTED BASED ON
THE OUTSIDE TEMPERATURE