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© Munters AB, 2015
111
10.5.1
L
IGHT
D
IMMER
,
V
ARIABLE
S
PEED
F
AN
,
V
ARIABLE
H
EATER
,
V
ARIABLE
S
TIR
F
AN
C
ONTROL
•
To configure the light dimmers, refer to Light, page 49.
•
To configure the variable speed fans, refer to Stir Fan Levels, page 43.
•
To configure the variable heaters, refer to Temperature Curve Help | Set Definitions, page 16.
•
To configure variable speed fans, refer to Stir Fan Levels, page 43.
10.5.2
V
ENT
,
T
UNNEL
,
AND
C
URTAIN
A
NALOG
O
UTPUT
C
ONTROL
Vents, tunnels, and curtains can be controlled via:
•
A physical relay (device is physically wired to a relay) (refer to page 107) OR
•
A analog output (device is wired to an actuator that is connected to the Farm Premium analog
output card)
Assigning an analog output to a vent, tunnel, or curtain enables them to open and close automatically,
according to the analog output.
1. Define an output as vent, tunnel, or curtain.
2. Record the output number.
3. Enter the minimum and maximum voltage outputs according the actuators' requirements.
However, to enable opening and closing manually, a relay must be mapped to the analog output.
NOTE:
The following steps are optional.
4. Go to
Installation > Relay Output
.
5. Define a relay as AS Analog Out (38).
6. Place the cursor in the number column and enter the recorded output number.
7. Repeat for each relay.
NOTE:
If a vent is operating over analog output, there potentiometer feed-back support is disabled.
10.6
Vent / Curtain Setup
In Installation > Setup, define Static Pressure unit as None.
Use this screen to define the ventilation opening and closing mechanism. You can use one of three
methods:
•
Time
•
Potentiometer
•
Wind Direction (Natural programming only)
If you map a curtain or vent to a potentiometer, the Farm Premium controller uses that method (and not
time).
NOTE:
After defining the method used, define the opening levels in Vent & Curtain Levels, page 41.
In addition, Farm Guard enables turning off the fans if the curtain is not in the proper position. Refer to
Stop Fans, page 113.