© Munters AB, 2015
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•
The specific curtain/vent/inlet mapped to the failed potentiometer starts operating by time
calculation, using the times calculated by the calibration process. However, if required you can
enter new opening and closing times.
10.6.3
U
SING
W
IND
D
IRECTION
This parameter is enabled only when Natural Ventilation is enabled. Refer to Preliminary Steps, page 59
for details.
10.6.4
S
TOP
F
ANS
The Stop Fan parameter enables turning off fans if a specific curtain is moving below its minimum position.
This function prevents the curtain from sticking if the static pressure is too high and curtains have not yet
moved into a position which will cause the pressure to drop.
NOTE:
Default is NO.
10.6.5
V
ENT
/C
URTAIN
H
ELP
|
S
ET
D
EFINITIONS
These parameters enable maintaining an accurate curtain position when using time to calibrate.
While viewing the
Vent/Curtain menu
: Press
HELP
, select SET, and press
ENTER.
•
From/To Time: Time period in which calibration is enabled
•
Number of Steps: number of steps for automatic calibration: Set calibration point for curtain
after desired amount of curtain opening/closing (steps). During calibration, if the curtain is
open more than 50% it opens to 100%, calibrates, and returns to the previous position. If the
curtain is open less than 50% it closes to 0%, calibrates, and returns to the previous position.
Default: 99.
•
Power Vents Calibration: This parameter enables automatic calibration of air inlets when
recovering from a power outage. In many installations the backup system, such as Munters'
FBU-27, may have opened the air sources. When the Farm Premium takes over control again,
the air inlets are incorrectly positioned. The calibration at power up feature synchronizes the
actual position and the controller.
VENT / CURTAIN SETUP
Curtain
Pot
Open
(sec)
Close
(sec)
Wind
Dir
Stop
Fan
~ Curtain 1
NONE
60
60
45
NO
Curtain 2
NONE
60
60
45
NO
Inlet 1
NONE
60
60
0
NO
Inlet 2
NONE
60
60
0
NO
Tunnel
NONE
60
60
0
NO
~ Vent 1
NONE
60
60
0
NO
Vent 2
NONE
60
60
0
NO
Attic Vent
NONE
60
60
0
NO
SYSTEM PARAMETERS
CURTAIN CALIBRATION
From Time
0:00
To Time
0:00
Number of Steps
0
Power Vents Calibration
NO
Proximity to Edge %
10
Close Below This Temp. (out)
0.0
